as作连词的用法:
1.作“在-------期间，当----的时候”引导时间状语从句.注意与when、 while的用法区别。
①下列情形时,只用as, 而不用when或while。
1)用于表示同一个人的两种动作交替进行,指一边----一边. 如:
The girl sings as she goes to school.
He looked behind occasionally as he went forward in the forest.
2)表示两个同步发生的动作或行为,意思是随着-----的发展.如:
As time went on / by, she became more and more beautiful .
As children get older, they become more and more interested in everything.
3)表示两个短暂行为或事情几乎同时发生.如:I watched her as she read the book.
I thought of it just as you opened your mouth.
Just as the flying worm hit her face, she gave a loud cry.
4)接在名词后面表示某一个年龄段时.如:
As a young man, he was active in sports.
②when作"当……的时候"解,可以指较短的(一点)时间,也可指一段时间。
如:When I was at college, I could speak several foreign languages. When the clock struck twelve, I had slept for 2hours.
③ while常表示一段较长的时间或一个过程,强调主句谓语动词与从句谓语动词同时发生。如:Work while you work. Play while you play.
2. As =Since 作"既然"、"由于"解,引导原因状语从句,常用来表示已为人们所知或显而易见的原因或理由。如: As he’s been ill for ages, I will help him. As / Since you're not feeling well, you may stay at home.
As he wasn't ready , we went without him.
3. As =in the way that作"像"、"按照……的方式"解,引导方式状语从句。如: Do as I told you.
Remember, you must do everything as I do.
4. 用于as--- as或not / so/ as ---- as中,前一个as是副词,后一个as是连词,引导比较状语从句。如:They helped the old as much as possible.
I don't speak English so/ as well as she does.
5. 表示虽然,尽管 等,引导让步状语从句,常用倒装语序,模式为:
adj. /adv. / n.+as +主语+谓语+主句。如: Young as he is, he knows much. Tired as they were, they walked on.
6. 表示也------一样。 She is a doctor, as was her husband.
（二）、 as作关系代词,引导定语从句,表示正如,这一点.如:
He is very careful, as we all know.
As is well-known, Taiwan belongs to China.
另外,当先行词被the same, such等词修饰时,常用as来引导定语从句。如: Such a clever girl as she can learn anything quickly.
I was reading the same book as he bought yesterday.
（三）、as作介词的用法.
1.表示好像。如:He dressed as a policeman.
2. 表示作为当作。如：I found a job as a guide.
3. 当某人是某身份时。如：As a child , she was sent to abroad.
4. as引导的介词短语大多用作状语,as译为"作为";少数情况可引起宾语补足语。如:
As a Party member, I'll take the lead in everything. (状语)
She works as a model. (状语)
She has me as one of her best friends.(引起宾语补足语)
（四）、作副词的用法 1 表示与------等同。如：This dress is twice as expensive as that one. 2 像，如等。如：As before, he remained unmoved.
总之，通过以上的分析，我们对as的词性和用法有了比较全面的理解和把握，才能在实际的运用中做到心中有数，应付裕如。
adv.
同样地, 一样地
She is as tall as her mother.
她和她母亲一样高。
prep.
(表示时间)当还是…的时候
As a schoolboy, he showed every sign of genius.
当他还是个小学生的时候, 就显示出了天资聪慧。
(表示方式)以…的身份, 以…资格, 作为; 以…形式, 以作为; 以…角色, 扮演…角色; 如同, 像
(表示结果)成为, 看作, 看成
We had better treat it as a joke.
我们最好把它当作玩笑。
(表示目的)为了, 以…为目的
The dykes were built as a protection against the sea.
建筑堤坝是为了防止海水泛滥。
(表示举例)例如, 诸如…之类的
We talked about such subjects as the weather.
我们谈论了诸如天气之类的话题。
conj.
在…期间, 当…时候
I was coming in as he was going out.
我进来的时候, 他正出去。
尽管, 即使, 虽然
Intelligent as you are, I suspect you will fail.
尽管你聪明, 我猜想你会失败。
像…一样
由于, 因为
As you weren't there I left a message.
因为你不在那里, 我留了个信儿。
特别提醒下面两点：
as引导方式状语从句时，翻译成“按照”。I have changed it as you suggested. as作关系代词引导非限制性定语从句时，位置灵活，可位于句首，句中，翻译成“正如...一样/正像...一样”在定语从句中做主语或宾语 。
As is well known to us all,Taiwan is a part of China.（as代Taiwan is a part of China做is well known 的主语）
Taiwan is a part of China,as is well known to us all.（as代Taiwan is a part of China做is well known 的主语）
Machine,as was expected,has stoped operating.(as代Machine has stoped operating做 was expected的主语）
Taiwan is a part of China,as we all know .（as代Taiwan is a part of China做 know 的宾语）
as是英语中用得比较多的一个词，也是很多学生反映较难掌握的一个词。as的词性较多，用法也较复杂，因此掌握该词会对英语学习很有帮助。下面笔者结合多年的语法教学经验，对as的用法作一个归纳。
一、as作连词的用法
1. as...as的用法
as...as意为"和……一样"，表示同级的比较。使用时要注意第一个as为副词，第二个as为连词。其基本结构为：as+ adj./ adv. +as。例如：
(1)This film is as interesting as that one.这部电影和那部电影一样有趣。
(2)Your pen writes as smoothly as mine.你的钢笔书写起来和我的一样流畅。
其否定式为not as/so +adj./ adv. +as。例如：
This dictionary is not as/so useful as you think.这本字典不如你想象的那样有用。
若有修饰成分，如twice, three times, half, a quarter等，则须置于第一个as之前。例如：
Your bag is twice as expensive as mine.你的袋子比我的贵一倍。
几个关于as...as的常见句型：
(1)as...as possible
Please answer my question as soon as possible.请尽快回答我的问题。
(2)as...as usual/before
She looks as pretty as before.她看起来和以前一样漂亮。
(3)as long as... (引导条件状语从句)
It took us as long as three years to carry out the plan.我们花了长达三年的时间才完成这项计划。
(4)as far as
He walked as far as the railway station yesterday evening.昨天傍晚，他一直散步到火车站。
(5)as well as
She cooks as well as her mother does.她烧菜烧得跟她母亲一样好。
一些带有as...as结构的常见短语归纳：
as busy as a bee像蜜蜂一样忙碌
as easy as ABC像ABC一样容易
as deep as a well像井一样深
as light as a feather像羽毛一样轻
as soft as butter像黄油一样软
as rich as a Jew像犹太人一样富裕
2. as用作连词引导时间状语从句
as与when，while都是引导时间状语从句的从属连词，含义都是"当……的时候"。但它们有区别：用when时，从句的动作可以与主句的动作同时发生，也可以先于主句的动作发生；用while时，从句的动作为一过程，主句动作与从句动作同时进行或在从句动作过程中发生；用as时，主句和从句的动作同时发生，具有延续的含义。例如：
(1)It was snowing when he arrived at the construction site.他到达工地时，天正在下雪。
(2)He was watching TV while his mother was cooking.他母亲做饭时他在看电视。
(3) You will grow wiser as you grow older.你会随着年龄的增长而越来越聪明。
3. as用作连词引导原因状语从句
as，because，since都可以表示因果关系，连接原因状语从句，含义是"因为，由于"，但它们有区别：because表示的语气最强；as一般放在句首，语气较弱，较口语化；since常常用在书面语中，表示多为对方已知的、或稍加分析便可得知的原因，有时可译作"既然"。例如：
(1) He will succeed because he is in earnest.他一定会成功，因为他很认真。
(2) Since you are so sure of it he'll believe you.既然你对此如此有把握，他会相信你的。
(3) As rain has fallen, the air is cooler.因为下过雨，空气比较清爽。
4. as作连词引导让步状语从句
as与although (或though)，however (或no matter how)等都可以引导让步状语从句，含义是"虽然，尽管"，但它们有区别：although语气稍正式些，可放在句首，也可放在句中，主句中不能再用but，但可以用yet；as所表示的语气较强，引导的让步状语从句用倒装语序；however引导让步状语从句时，它的后面可跟形容词或副词，也要用倒装语序。例如：
(1) Although he is quite old, he still jogs every day.他虽然年纪相当大，仍然每天慢跑。
(2) Strange as it may seem, nobody was injured in the accident.这次意外虽然显得令人不可思议，却没有人受伤。
(3) However hard he may try, he will not attain his goal.无论他怎样努力也达不到目标。
二、as作关系代词的用法
关系代词as引导定语从句时，既可以单独使用，也可以与其他词连用，其用法要比that和which更为复杂。
1. as引导定语从句与其他词连用
①用于the same...as结构中
This is the same book as I read last week.这本书和我上周读的那本是一样的。
②用于such...as结构中
I don't like such books as he recommends.我不喜欢他推荐的那些书。
③用于"so +adj. + a/an + n. (单数) + as "结构中
I am not so strong a man as I was.我已经没有从前那么强壮了。
2. as单独引导定语从句
as单独引导定语从句时，先行词可以是一个词，也可以是一个句子或短语。例如：
(1) She is late, as is often the case.她迟到了，这是经常的事。(先行词是整个主句)
(2) To shut your eyes to facts, as many of you do, is foolish.对事实视而不见--你们好多人都是如此的愚蠢。(先行词是不定式短语)
三、as作介词的用法
as作介词，意思是"作为"，"以……身份"。例如：
He came to China as a tourist five years ago.他五年前以游客的身份来过中国。
四、as作副词的用法
to the same degree or amount; equally "相同地"，"同样地"。例如：
They don't have as many airplanes.他们没有同样多的飞机。
第一主题 英语语法系统全解（一）
第1章 动词时态 2-4楼
第2章 被动语态 5-7 楼
第3章 虚拟语气 9-11 楼
第4章 情态动词 12-16楼
第5章 动词不定式 17-20 楼
第6章 动词的ing形式 21-24楼
第7章 过去分词 25-27楼
第8章 独立主格结构 28－30楼
第9章 名词性从句 31－33楼
第10章 定语从句 35－40楼
第11章 状语从句（一） 40－45楼
第11章 状语从句（二）
第12章 直接引语和间接引语
第13章 倒装
第14章 强 调
第15章 省略
第16章 主谓一致
动词时态－－ 一般时 第一章 动词时态（一）
在英语中，不同时间发生的动作或存在的状态，要用不同的动词形式来表示，这就叫做动词的时态。
一、一般时
一般时包括一般现在时、一般过去时、一般将来时和一般过去将来时。
A.一般现在时
1． 一般现在时的构成
一般现在时主要用动词原形来表示。主语是第三人称单数时，动词后面要加-s或-es。
“我’为开头做称呼的是第一人称
‘你’怎么怎么样是第二人称
‘他她它’是第三人称
第三人称 就是 第三人称 转述。
例：小兰对妈妈说：“我要出去玩了”
第三人称 ： 小兰对妈妈说，她要出去玩了。
第三人称 ，就是说是叙述性质的，没有人的语言，是旁白在记叙！
以我的角度说，就是第一人称；
以和你说的角度说，就是第二人称； 站在事情外说事情，他怎么怎么样，那就是第三人称了
They want good jobs.
他们想要好的工作。
The coat matches the dress.
外衣和裙子很相配。
This work does not satisfy me.
这项工作我不满意。
Do you understand?
你懂了吗?
2．一般现在时的用法
①一般现在时的基本用法
a. 表示现在习惯性的动作或存在状态
He always takes a walk after supper.
晚饭后他总是散散步。
Everyone is in high spirits now.
现在大家都情绪高涨。
b. 表示客观事实或普遍真理
The sun rises in the east and sets in the west.
太阳从东方升起在西方落下。
Sound travels faster through water than it does through air. 声音在水中的传播速度要比在空气中快。
Time and tide wait for no man.
时间不等人。
c. 表示主语的特征、能力和状态
This cloth feels soft.
这布摸上去很软。
I love classical music.
我喜欢古典音乐。
The President still seems able to find time to go fishing. 看来总统仍能有时间去钓鱼。
d. 表示按计划或安排将要发生的动作
The meeting begins at 7:00.
会议七点钟开始。
We leave here at 8:00 sharp.
我们八点整离开这里。
e. 在时间、条件、让步状语从句中表示将来动作
When you come next time, bring me some magazines.
你下次来时，给我带几本杂志。
If time allows, we shall go there tomorrow.
如果时间允许的话，我们明天去那里。
Whether he agrees or not, I will stay at home.
不管他同意与否，我都会待在家里。
②一般现在时的特殊用法
a. 用于新闻标题或图片说明中
China Declares Manned Spaceflight Successful
中国宣布载人航天飞行圆满成功
Laura Bush Arrives in Moscow
劳拉·布什抵达莫斯科
b. 用于体育运动、表演等实况报道中
Francis slips past, passes the ball to Yao Ming, who jumps, catches and shoots it into the basket.
弗朗西斯穿过去，把球传给姚明，姚明跳起来，接住球投进篮里。
Now, look, I press the button and turn on the machine.
现在，看，我按下按扭，打开了这台机器。
c. 表示告诫或劝说
You mind your own business.
你不要管闲事！
If he does that again, he goes to prison.
如果他再那样的话，他就会进监狱的。
d. 表示现在瞬间的动作
Here comes the bus.
汽车来了。
There goes the bell.
铃响了。
B．一般过去时
1． 一般过去时的构成
一般过去时是用动词的过去式来表示。
His words fetched a laugh from all present.
他的话使在场的人都笑了。
I did not sleep well last night.
我昨晚没睡好。
Did you direct the tourist to the hotel?
你告诉这位游客去旅馆的路了吗？
2．一般过去时的用法
①一般过去时的基本用法
a. 表示过去某个特定时间发生的动作或存在的状态
He suddenly fell ill yesterday.
昨天他突然生病了。
The engine stopped because the fuel was used up.
发动机因燃料用光而停机了。
注意：
在一般过去时的句子中，通常都要有表示过去的时间状语。
【误】I visited the Palace Museum.（在没有上下文的情况下，应避免这样说）
【正】I visited the Palace Museum last year.
去年我参观过故宫博物院。
【正】I have visited the Palace Museum.
我参观过故宫博物院。
b. 表示过去经常发生的动作或存在的状态
I wrote home once a week at college.
我上大学时每周给家里写一封信。
He was already in the habit of reading widely in his boyhood.
他童年时就养成了广泛阅读的习惯。
提示：
表示过去的习惯性动作，除了用过去式外，还可以用used to或would来表示。 She used to study late into the night when she was in Senior Three.
她上高三时经常学习到深夜。
He would sit for hours doing nothing.
过去他常常一坐几个钟头什么事也不做。
c. 表示过去连续发生的一系列动作
She entered the room, picked up a magazine and looked through it carefully. 她走进房间，拿起一本杂志，认真地翻阅了起来。
The students got up early in the morning, did morning exercises and then read English aloud in the open air.
学生们很早起床，做早操，然后在室外朗读英语。
d. 在时间、条件状语从句中表示过去将要发生的动作
We would not leave until the teacher came back.
老师回来我们才会离开。
She told me she would not go if it rained the next day.
她告诉我如果第二天下雨的话，她就不去了。
②一般过去时的特殊用法
a. 在虚拟语气中表示现在或将来时间的动作或状态
It's time we went.
是我们该走的时候了。
I wish I were twenty years younger.
但愿我年轻20岁。
I would rather you didn't do anything for the time being.
我宁愿你暂时先不要采取什么措施。
b. 在口语中，一般过去时往往显示委婉客气。
I wondered if you could give me a hand.
我想请你帮个忙。
Might I come and see you tonight?
我想今晚来看你，好吗？
3．一般现在时和一般过去时的比较
一般现在时要和现在时间相联系，而一般过去时和说话的“现在”不相联系。 His father is a film director.
他父亲是电影导演。（他现在还是）
His father was a film director.
他父亲曾是电影导演。（他现在不是）
How do you like the novel?
你觉得这部小说怎么样？（还在看小说）
How did you like the novel?
你觉得这部小说怎么样？（已看完小说）
C．一般将来时
1． 一般将来时的构成
一般将来时是由“will / shall + 动词原形”构成的。shall只限于第一人称，主要见于英国英语，现在的趋势是第一、二、三人称的单复数形式均用will表示。在口语中，shall和will常缩写成“'ll”，紧接在主语之后。其否定式shall not 和will not 常简略为shan't 和won't。
I'll go and shut the door.
我去关门。
When will you know your exam results?
你什么时候能知道考试结果？
I can see you're busy, so I won't stay long.
我看得出你很忙，所以我不会呆太久的。
提示：在you and I或both of us等短语后，只用will，不用shall。
You and I will arrive there next Monday.
我和你下周一都要到达那里。
Both of us will graduate from middle school next year.
我们俩明年中学毕业。
2．一般将来时的用法
①表示将要发生的动作或存在的状态
I shall be free this afternoon.
我今天下午有空。
There'll be no chemistry classes tomorrow.
明天没有化学课。
They will probably go to Shanghai for their holiday.
他们可能去上海度假。
注意：
在口语中，常用will / shall + be doing结构来代替will / shall + 动词原形，以表示生动。
I'll be seeing a friend off at the airport.
我要去机场给一个朋友送行。
He'll be going with us tomorrow.
他明天和我们一起去。
②表示将要反复发生的动作
My uncle will come to see me every Saturday.
我叔叔每个星期六都会来看我。
The students will have five English classes per week this term. 本学期学生们每周要上五节英语课。
③表示同意或答应做某事
That bag looks heavy. I'll help you with it.
这个包看起来很重，我来帮你提。
I won't tell anyone what happened, I promise.
我保证不告诉别人所发生的事。
④表示一种倾向或推测
Flowers will die without water.
没有水花会枯死的。
Water will change into ice at 0℃.
水在零摄氏度就会结冰。
This will be your sister, I guess.
我猜想这是你姐姐。
3．一般将来时的常用结构
①用于“I expect, I'm sure, I think, I wonder + 宾语从句”中 Don't worry about the exam. I'm sure you'll pass.
不要担心这次考试，我确信你会通过的。
I wonder what will happen.
我不知道将会发生什么事。
I don't think the test will be very difficult.
我想这次测验不会太难。
②用于“祈使句 + and + 陈述句”中
Work hard and you will succeed.
如果你努力，就会成功的。
Go at once and you will see her.
马上去，你就会见到她了。
③与表示时间或条件的状语从句连用
I'll let you know as soon as he arrives. 他一到我就通知你。
If you ask him, he will help you.
如果你请他，他会帮助你的。
We shall go unless it rains.
除非下雨，否则我们是要去的。
4．将来时间的其他表达法
①be going to + 动词原形
“be going to+ 动词原形”这一结构常用于口语中。 a. 表示决定或打算要做某事
I'm going to buy a new coat this winter. 今年冬天我打算买一件新大衣。
Are you going to play basketball after class? 下课后你去打篮球吗？
He is going to be a doctor when he grows up. 他长大后要当医生。
What are you going to do today?
今天你打算做什么？
b. 表示有迹象即将要发生什么事
Look at those black clouds. It is going to rain. 瞧那乌云，天要下雨了。
The car is going to turn over.
汽车要翻了！
There is going to be a snowstorm.
将有一场暴风雪。
比较：
“be going to + 动词原形”与“will / shall + 动词原形”的区别
1．be going to通常表示很快就要发生的事，而will/shall既可表示不久的将来，也可表示长远的将来或不确定的将来。
She is going to get better.
她的病要好了。（有恢复健康的迹象）
She will get better.
她的病会好的。（认为最终会恢复健康的）
2．will表示将来，通常是指事先无计划的意图，是临时决定的； be going to则表示事先有计划的意图，是经过考虑的。
— George phoned while you were out.
你外出的时候乔治打电话来的。
— Ok. I'll phone him back.
好的，我给他回电话。（临时决定）
— Matthew phoned while you were out.
你外出的时候马修打电话来了。
— Yes, I know. I'm going to phone him back.
是的，我知道了。我准备给他回电话。（早有安排）
但在正式文体中，要用will来表示事先安排的动作。
The meeting will begin at 10:00 a.m..
会议将在10点开始。
Coffee will be served from 9:30 from today onwards.
从今天起9:30开始供应咖啡。
3．表示有迹象显示将要发生某一动作时，要用be going to，不用will或shall。 I feel terrible. I think I'm going to be sick.
我觉得不舒服，我想我要生病了。
4．be going to 可用于条件句，表示将来时间，will则不能。
If you are going to attend the meeting, you'd better leave now.
如果你要出席会议，你最好现在就动身。
②be + 动词的-ing形式
“be + 动词的-ing形式”表示根据现在的计划或安排，预期将会发生某事，这种安排不
容随意改变。在这一结构中，动词-ing形式通常是表示位置转移的动词，如arrive, come, go, leave, move, start, stay, get 以及eat, meet, see off, die等，并与表示将来的时间状语连用。如果没有时间状语，则所表示的动作有即将发生之意。
He is leaving for Xinjiang in a few days.
他几天后要动身去新疆。
I am dining out tonight.
今晚我将出去吃饭。
The plane is taking off soon.
飞机马上就要起飞了。
The old man is dying.
那位老人快要死了。
比较：
“be + 动词的-ing形式”和“be going to + 动词原形”的异同
1．表示按计划发生的动作时，两者可互换。
We are moving to a new flat tomorrow.
我们明天就要搬到新房子里去了。
We are going to move to a new flat tomorrow.
我们明天就要搬到新房子里去了。
2．表示由于客观因素而产生的将来动作或状态时，用be going to结构，不用be + 动词的-ing形式。
You are going to fall if you climb that tree.
如果你爬树的话，你会摔下来的。（不可说 You are falling if ...）
Be careful. You are going to break that chair.
当心！你会把那张椅子弄坏的。（不可说 You are breaking that chair）
③ be + 动词不定式
这一结构中的be，只有现在式 (am, is, are) 和过去式 (was, were) 两种形式。 a. 表示按计划或安排将要发生的动作
The highway is to be open to traffic in May.
这条公路将在五月份通车。
Am I to take over his work?
我是不是要接管他的工作？
b. 用于条件句中强调按计划或安排将要发生的动作
If we are to take the 5:00 train, we must leave now.
如果我们乘坐5点的火车的话，那我们现在就得出发。
c. 表示命令或吩咐等。否定形式常表示“禁止”或“不许”。
You are to be back before 10 p.m..
你必须在10点前回来。
You are not to go out alone at night.
晚上你不能单独出去。
比较：
“be + 动词不定式”与“be going to+ 动词原形”的区别
1．“be going to+ 动词原形”侧重说话人个人的意图和打算，“be + 动词不定式”侧重受别人的指示或安排要做的事。
I'm going to try my best to write this article well.
我将尽力把这篇文章写好。
Am I to wait here till their arrival?
我要在这儿一直等到他们抵达吗？
2．表示由于客观因素或不受人控制的将要发生的动作时，只用“be going to+ 动词原形”，不用“be + 动词不定式”。
It's going to rain.
天要下雨了。（不说It's to rain.）
Rachel is going to faint.
雷切尔要晕倒了。
④ 一般现在时
一般现在时可以用来表示将来时间，主要用法有：
a. 表示由于日历或时刻表的规定而固定不变的或比较不易变更的将来时间发生的动作。 Tomorrow is Friday.
明天是星期五。
What time does the next train leave for Paris?
下一班开往巴黎的火车几点出发？
b. 在时间状语从句或条件状语从句中，用一般现在时表示将来时间的动作或状态。 I'll give the book to you after I finish it.
我看完这本书就给你。
If he arrives, we must go and meet him at the railway station. 如果他到了，我们就得到火车站去接他。
c. 在hope, suppose等后面的宾语从句中常用一般现在时表示将来动作或状态。 I hope all is well with him.
我希望他一切都好。
Suppse we go hiking tomorrow.
我们明天还是去远足吧。
D．一般过去将来时
1．一般过去将来时的构成
一般过去将来时是由“should/would + 动词原形”构成的。
He asked me yesterday when I should leave for Paris.
昨天他问我什么时候动身去巴黎。
They wanted to know how they would finish the homework earlier.
他们想知道怎样才能早一点儿完成家庭作业。
2．一般过去将来时的用法
一般过去将来时间的出发点是过去，即从过去某一时刻看以后要发生的动作和状态。 a. 一般过去将来时常用于间接引语中
He said they would arrange a party.
他说他们将安排一个晚会。
I asked if he would come and fix my TV set.
我问他是否来帮我修电视机。
b. 一般过去将来时可用来表示非真实的动作或状态
If I had a chance to study abroad, I would study at Cambridge University. 如果我有机会出国学习的话，我就会去剑桥大学。
I wish he would go with me to the cinema tonight.
今晚他能和我一起去看电影就好了。
3．过去将来时间其他表达法
a. was/were going to +动词原形
He said that he was going to live in the country when he retired.
他说他退休后要住在农村。
They thought it was going to rain.
他们认为天要下雨了。
b. was/were +动词的-ing形式
Nobody knew whether the guests were coming.
没人知道客人们是否要来。
I was told that the train was leaving in a few minutes.
我被告知火车几分钟后就要开了。
c. was/were +动词不定式
She said she was to clean the classroom after school.
她说她放学后要打扫教室。
It was reported that another bridge was to be built across the Yangtse River. 据报道长江上将要再建一座大桥。
提示：
“was/were going to +动词原形”或“was/were + 动词不定式完成式”可表示未能实现的过去将来时间的动作。
Last Sunday we were going to visit the Great Wall, but it rained.
上星期天我们本想去游览长城的，但却下雨了。（没有去成）
I was to have helped with the performance, but I got flu the day before. 我是打算帮忙演出的，但前天我感冒了。（没有帮上忙）
d. was/were about to do
“was/were about to do”表示说话的瞬间就会发生的动作。
I felt something terrible was about to happen.
我觉得有可怕的事要发生了。
e. was/were on the point of doing
I'm glad you have come. I was on the point of calling you, but you've saved me
the trouble now. 很高兴你来了。我正准备给你打电话，现在你省去我这个麻烦了。 提示：
“be about to do”和“be on the point of doing”结构一般不与表示将来的时间状语连用，但后面可以接when引导的分句。
I was about to start when it suddenly began to rain.
我正要动身天突然下雨了。
进行时 二、进行时
进行时表示动作正在进行，这个动作是暂时的，也是未完成的。进行时包括现在进行时、过去进行时和将来进行时。
A．现在进行时
1．现在进行时的构成
现在进行时是由“am, is, are +现在分词”构成的。
I'm reading the evening newspaper.
我正在看晚报。
Now it isn't snowing outside.
现在外面不在下雪。
Are they playing soccer in the playground?
他们正在操场上踢足球吗？
2．现在进行时的用法
①现在进行时的基本用法
a.表示说话的此刻正在进行的动作
通常由表示“此刻”的时间状语（now, at this moment），或通过Look/Listen!这两个提示语来表明此时此刻动作正在进行。
She is making a fire now.
她正在生火。
Listen! Mary is singing an English song in the classroom.
听！玛丽正在教室里唱英文歌。
b.表示现在时间段中正在进行的动作
They are planting trees on the hill these days.
这几天他们正在山上种树。
I don't really work here; I am just helping out until the new secretary arrives. 我并不在这儿工作，我只是在新秘书来之前帮帮忙罢了。
c.表示按计划或安排将要发生的动作
能这样用的动词并不多，通常是arrive, begin, come, do, drive, fly, go, leave, stay等表示位置转移的动词。这种用法比较生动，给人以一种期待感。
Jane and Betty are going on holiday in a few days.
几天后简和贝蒂将出去度假。
Where are you staying in Guangzhou?
你到广州后准备住在哪里？
②现在进行时的特殊用法
a.表示一种重复的动作，带有“厌恶”、“赞叹”等感情色彩
现在进行时往往与constantly, always, forever等状语连用，给现在的动作披上一层感情色彩。
She's constantly complaining.
她不停地抱怨。
My brother is always leaving things about.
我弟弟总是乱丢东西。
He is forever thinking of doing more for the students.
他总是想着为学生多做些事情。
b.表示某一具体动作或心理状态的发展过程
The house is falling down.
房子正在倒下。
The weather is changing for the better.
天气慢慢转好了。
注意：
有时表示一个动作刚刚开始。
I'm forgetting my English.
我的英语开始忘了。
Food is costing more.
食品贵了起来。
c.强调动作的重复
The train is arriving late almost every day this summer.
这个夏季火车几乎天天晚点。
Someone is knocking at the door.
有人不断地在敲门。
The boy is jumping with joy.
那男孩高兴地跳个不停。
d.表示两个动作是同一动作
He who helps others is helping himself.
帮人就是帮自己。
If you insist on doing it, you are doing a foolish thing.
如果你坚持做这件事，你就是在干傻事。
e.be动词的进行时态
be动词一般不用于进行时态。但有时可用“am, is, are + being +形容词”结构表示暂时或故意如此。
The boy is being naughty.这孩子有点儿淘气。
I don't think you are being fair.
我认为你不公平。
He is being modest.
他现在很谦虚。
比较：
You are not polite.
你不讲礼貌。（一贯如此）
You are not being polite.
你可有点儿不礼貌了。（暂时的现象）
3．不用进行时态的动词
①表示状态的动词
这类动词有seem, look, appear, have, belong to, own, hold等。
This backpack belongs to me.
这背包是我的。
He seems rather angry with you.
看起来他很生你的气。
②表示知道、信念、理解、推测、怀疑、希望等含义的动词
这类动词有know, remember, understand, see, think, believe, suppose, hope, doubt等。
I don't think he will come tomorrow.
我想他明天不会来。
I still remember the days when we studied together.
我还记得我们一起学习的那些日子。
提示：
有时这些动词的进行时态可表示心理状态的缓慢发展过程。
She's understanding you better now.
她越来越了解你了。
③表示要求、心愿等意义的动词
这类动词有want, wish, need, desire等。
Your clothes need washing.
你的衣服需要洗了。
How I wish I were a bird！
我多希望我是一只鸟啊！
④表示继续或持续含义的动词
这类动词有continue, keep, last, go on等。
She still continues in poor health.
她仍然身体很差。
Every day after finishing his homework, he goes on to do some reading.
他每天做完作业后，都会继续看会儿书。
⑤表示感觉的动词
这类动词有see, hear, smell, taste, feel等。 The apples taste good.
这些苹果尝起来不错。
This flower smells nice.
这花闻上去很香。
Your suggestion sounds reasonable.
你的建议听上去有道理。
注意：
如果这些动词表示一种有意识的行为，则可用进行时态。 She is tasting the apple.
她正在尝苹果。
The dog is smelling the footprints.
狗正在嗅脚印。
The bell is sounding for dinner.
晚饭铃响了。
4．现在进行时和一般现在时的比较
①暂时性动作和经常性动作
The computer is working perfectly.
计算机运转得很好。（暂时）
The computer works perfectly.
计算机运转很好。（一直如此）
②持续性动作和短暂性动作
The bus is stopping.
车停了下来。（渐渐地）
The bus stops.车停了。（迅速）
③暂时性动作和永久性动作
She is living in the country.
她现在住在农村。（暂时）
She lives in the country.
她住在农村。（永久）
④有感情色彩和没有感情色彩
He is doing well at school.
他在学校表现很好。（赞扬）
He does well at school.
他在学校表现很好。（一般事实）
B.过去进行时
1.过去进行时的构成
过去进行时是由“was / were +现在分词”构成的。
I was doing my homework at this time yesterday.
昨天的这个时候我正在做作业。
Were you expecting him yesterday?
你昨天一直在等他吗？
They were not talking when I came in.
我进来的时候他们没在说话。
2.过去进行时的用法
①过去进行时的基本用法
a.表示在过去某一时刻正在发生的动作或该动作与过去的另一动作同时发生 I was having supper at 7:00 yesterday evening.
昨天晚上7点我正在吃晚饭。
She was playing the piano while I was reading the newspaper. 她弹钢琴时我在看报。
提示：
当句子意思很清楚时，我们也可以把两个动词都换成一般过去时。 We listened closely while the teacher read the text.
老师读课文时，我们都仔细地听着。
b.表示过去一段时间内正在进行的动作
We were talking about you the whole morning.
我们整个上午都在说你。
He was watching TV at home from 3:00 to 5:00 yesterday afternoon.
昨天下午从3点到5点他一直在看电视。
c.表示按计划、安排过去将要发生的事
He told me that he was going soon.
他告诉我他很快就要走了。
She said she was leaving for New York the next month.
她说她下个月动身去纽约。
②过去进行时的特殊用法
a.表示故事发生的背景
It was snowing as the medical team made its way to the front.
那支医疗小组往前线行进时天正下着雪。
Tom slipped into the house when no one was looking.
汤姆乘没人注意时溜进了房间。
b.表示一个新的动作刚刚开始
过去进行时可用来引出一个新的动作，这种用法颇有点儿像镜头转换。
Five minutes later, he was standing at the door, smoking.
5分钟后，他已站在门口抽着烟。
The baby was crying hard, and suddenly the crying stopped.
这婴儿在大声啼哭，突然，哭声停止了。
c.用来陈述原因或用作借口
She went to the doctor yesterday. She was having a lot of trouble with her heart. 她昨天去看病了。她患了很严重的心脏病。
I haven't finished my homework because I was helping my mother at home all day yesterday.
我作业没做完是因为我昨天一直帮妈妈在家干活。
d.与always, constantly等词连用，表示感情色彩
The girl was always changing her mind.
这女孩老是改变主意。
In the past he was constantly asking me for money.
过去他总是向我要钱。
3．过去进行时与一般过去时的区别
①一般过去时往往表示某一动作已经完成，而过去进行时却表示动作在持续或未完成。 She wrote a letter to her friend last night.
她昨晚给朋友写了封信。（信写完了）
She was writing a letter to her friend last night.
她昨晚一直在给朋友写信。（信不一定写完）
②一般过去时表示只做一次动作，而过去进行时却表示动作反复地进行。
She waved to me.
她朝我挥了挥手。
She was waving to me.
她不断地朝我挥手。
The boy jumped up and down.
这男孩跳了一下。
The boy was jumping up and down.
这男孩不停地跳着。
C.将来进行时
1．将来进行时的构成
将来进行时是由“shall/will + be +现在分词”构成的。
Don't phone me between 8:00 and 10:00. We'll be having classes then. 8点到10点之间不要给我打电话，我们那时正在上课。
Will you be using your bicycle this evening?
今晚你用自行车吗？
She won't be having a meeting in her office at 8:00 tomorrow.
明天8点她不在开会。
2．将来进行时的用法
①将来进行时的基本用法
a.表示在将来某一时间正在进行的动作
I'll be taking my holiday soon.
我不久就去度假了。
They will be meeting us at the station.
他们会在车站接我们的。
b.在口语中代替will/shall do
I hope you will be coming on time.
我希望你按时来。
I'll be seeing Mr. Smith tomorrow.
我明天将见到史密斯先生。
The minister will be giving a speech on international affairs.
部长将就国际事务发表演讲。
②将来进行时的特殊用法
a.表示原因、结果或猜测
Please come tomorrow afternoon. Tomorrow morning I'll be having a meeting. 请你明天下午来吧。我明天上午有个会。（表原因）
Stop the child or he will be falling over.
抓住那个孩子，要不他会掉下去的。（表结果）
You will be making a mistake.
你会出错的。（表推测）
b.用在问句中，表示委婉礼貌
Will you be reading anything else?
你还要看点儿什么吗？
When shall we be meeting again?
我们什么时候再见面？
c.表示稍后一点儿的安排
The students aer studying Unit 3 this week, and next week we'll be studying Unit 4.
这星期我们学第三单元，下周我们将学第四单元。
My duties will end in July and I will be returning to Shanghai.
我的任务在7月结束，之后我会回上海。
完成时 三、完成时
完成时是用来表示动作的完成与未完成的情况。完成时包括现在完成时、过去完成时和将来完成时。
A．现在完成时
1．现在完成时的构成
现在完成时的构成形式是“have / has +过去分词”。现在完成时常被称为“与现在有联系的过去”，因此它不能与明确的过去时间状语连用。
Someone has broken the window.
有人把窗户打破了。
I haven't seen much of her lately.
我最近不常见到她。
How long have they been married?
他们结婚多长时间了？
2．现在完成时的用法
①表示结果的现在完成时
现在完成时着眼于过去的动作对现在产生的结果或影响。这是现在完成时的“已完成”用法，表示动作或过程发生在说话之前就已完成，并与现在有联系。这种联系实际上就是“过去的动作”对现在的影响或产生的结果。
I have bought a pen.
我买了一支笔。（结果：I have a pen now.）
The temperature has increased by 10℃.
温度上升了10摄氏度。（结果：It is quite hot now.）
Air pollution has taken the lives of many people.
空气污染已经夺去了很多人的生命。（结果：Air pollution is very serious now.） 注意：
现在完成时的上下文所指的时态必须呼应。
【误】I have bought a pen but I have lost it now.（have bought表示你现在已经有笔了，这和后面的have lost有矛盾）
【正】I bought a pen but I have lost it now.
我（过去）买了一支笔，但我已经把它丢了。
【误】I have lost my pen but I have found it now.（have lost强调你现在已经没有笔了，与后面have found的意思有冲突）
【正】I lost my pen but I have found it now.
我丢了一支笔，但现在已经找到了。
②表示经历的现在完成时
强调过去某一时刻到说话时这段时间中的经历。
Have you ever been to the Great Wall?
你去过长城吗？
I have visited Beijing at least ten times.
北京我至少访问过十次了。
She has never spent a holiday at the seaside.
她从未到海滨度过假。
③表示延续的现在完成时
这是现在完成时的“未完成”用法，表示一个动作或状态从过去某时开始，持续到现在，可能要继续下去。
He's loved fishing for a long time.
他爱好钓鱼为时已久。（他现在仍爱好钓鱼）
I have lived here for more than thirty years.
我已在这儿住了三十多年了。（也许还会继续住下去）
注意：
现在完成时的“未完成”用法既可用于动态动词（主要是持续动词），也可用于状态动词，但它一般不适用于表示短暂动作或位置转移的动词，如：open, break, go, come, arrive, leave等。如用这类动词表示“未完成”，通常只限于否定结构。
I haven't seen a film for weeks.
我已经好几个星期没看电影了。
She hasn't written to me since September.
自从9月份以来她还没给我写过信呢。
3．现在完成时的时间状语
①与现在完成时“已完成”用法连用的时间状语
现在完成时表示的动作或状态发生在现在时间以前的某个未明确指出的过去时间内，和它连用的时间状语要与现在时间有关，不能是明确地表示过去的时间状语。
a.不确定的过去时间状语：already, yet, before, recently, lately等
I've seen the film before.
我以前看过这部电影。
Have you been there lately?
近来你去过那里吗?
b.频度时间状语：often, sometimes, ever, never, once, rarely等
We have never heard of that.
我们从未听说过这事。
He has sometimes played tennis.
他有时打网球。
Big Ben has rarely gone wrong.
大本钟很少出差错。
c.包含现在时间在内的时间状语：now, just, today, this morning, this week, this year等
I have just finished the letter now.
我现在刚写完信。
You have just missed the bus.
你刚好错过公共汽车。
Has he done much work today?
他今天做了很多工作吗？
比较：already和yet用法上的区别
already常用于肯定句，置于句中。yet常用于否定句和疑问句，置于句末。但already有时也可用在疑问句中暗示惊讶的心情。
She has already gone.
她早就走了。
Have you eaten your dinner already?
你已经吃过饭了?
He has not come yet.
他还没有来。
②与现在完成时“未完成”用法连用的时间状语
与“已完成”用法一样，表示具体的过去的时间状语不能与“未完成”用法连用。与其连用的往往是指一段时间的状语以具体表示某一动作或状态持续了多久。
a. since +具体时间，表示动作或状态从何时开始
Since then, he has developed another bad habit.
自那以后他养成了另一个坏习惯。
He hasn't been home since he graduated.
他毕业后就没回过家。
b. for +一段时间，表示动作或状态持续了多久
We have worked here for ages.
我们在这里工作很久了。
There has been no rain here for nearly two months.
这里已经近两个月没有下雨了。
c. until now, up till now, so far, up to the moment
到目前为止
I have not seen him so far.
到目前为止我没见过他。
Up to the present, everything has been OK.
到目前为止一切正常。
d. in/during the past/last five years
在刚刚过去的5年里
He has been away from school during the last few weeks.
过去的几个星期里他没在学校。
In the past few years they have dealt with quite a few international corporations successfully. 在过去的几年中他们已经和好几家跨国公司做成了生意。
e. all the while, all day一直，一整天
She has been busy all day.
她忙了一整天。
4．现在完成时和一般过去时的区别
①两者都可表示过去发生过的动作，但前者表示的是过去的动作对现在的影响，而后者则只是表示过去有这一动作的事实。
He locked the door.
他锁过门。（但现在门是开是锁不清楚。）
He has locked the door.
他把门锁上了。（现在门是锁着的。）
Who turned on the light?
谁开的灯？（着眼开灯的动作，不管现在灯是开是关。）
Who has turned on the light?
谁把灯打开了？（着眼开灯的结果，即现在灯还亮着。）
②两者都可表示过去开始并延续了一段时间的动作，现在完成时表示该动作仍在继续，而一般过去时则说明该动作现已终止。
He has lived in Beijing for four years.
他在北京住了四年了。（现在仍住那儿）
He lived in Beijing for four years.
他曾在北京住了四年。（现在不住那儿了）
B．过去完成时
过去完成时的动作须在过去某一时间之前发生，即发生在“过去的过去”。
1．过去完成时的构成
过去完成时是由“had+过去分词”构成的。
Soon I realized I had made a serious mistake.
我很快就意识到我犯了一个严重的错误。
The man sitting beside me on the plane was very nervous. He had not flown before.
飞机上坐在我旁边的人很紧张，他以前从没乘过飞机。
Had he gone home when you arrived?你到的时候他已经回家了吗？
2．过去完成时的用法
①“已完成”用法
表示某一动作或状态在过去某一时间之前或过去某一动作之前已经完成。句中常用by引导的时间状语或以before, until, when, than等词引导的内含一般过去时的时间状语从句。 By 5:00 yesterday morning we had done that work.
到昨天早上5点钟时，我们已经做完了那件工作。
He had just finished sweeping the classroom when the teacher returned from the office.
老师从办公室回来时，他刚把教室打扫完。
They came earlier than we had expected.
他们到得比我们预料的要早。
I had learnt 5000 words before I entered the university.
我在进大学之前就已学了5000个单词。
It rained yesterday after it had been dry for many months.
旱了好几个月之后，昨天下雨了。
注意：
在包含before和after的复合句中，因为从句动作和主句动作发生的先后顺序已经非常明确，可以用一般过去时代替过去完成时。
The train (had) started before I reached the station.
在我到达车站之前，列车已经开了。
After he (had) arrived in England, Marx worked hard to improve his English. 马克思到达英格兰之后，努力提高他的英语水平。
②“未完成”用法
表示一个动作或状态在过去某一时刻之前就已开始，一直持续到这一过去时间，还可能再持续下去。
Up to that time all had gone well.
直到那时一切都很顺利。
John and Jane had known each other for a long time before their marriage. 约翰和简在结婚前就认识很长时间了。
She said she had made much progress since she came here.
她说自从她到这儿后已取得了很大的进步。
③“想象性”用法
过去完成时有时表示一种未实现的愿望或想法，主要用在if引导的和过去事实相反的条件句以及wish, as if引导的从句中。
If she had worked hard, she would have succeeded.
要是她努力的话，她就会成功了。（事实上她没努力，也没成功。）
I wish I had gone with you to the concert.
我要是和你一起去音乐会就好了。
The two strangers talked as if they had been good friends for many years. 那两个陌生人交谈起来就像是多年的老朋友。
④表示“刚刚??就??”
过去完成时常用在hardly/scarcely/barely ... when..., no sooner ... than ...等结构中，表示“刚刚??就??”。
Hardly had he begun to speak when the audience interrupted him.
他刚开始演讲，听众就打断了他。
No sooner had he arrived than he went away again.
他刚到就又走了。
提示：
intend, mean, hope, want, plan, suppose, expect, think等动词的过去完成时可以用来表示一个本来打算做而未做的事。
I had meant to come, but something happened.
我原本打算来的，但有事发生了。
I had intended to call on you, but was prevented from doing so.
我本打算去看你的，但没能去成。
They had wanted to help but couldn't get here in time.
他们原想帮忙的，但没能及时赶到这里。
3．过去完成时与一般过去时的比较
一般过去时表示过去时间的动作或状态。过去完成时表示的动作或状态发生在一般过去时表示的动作或状态之前，因此它表示的是“比过去更过去”。
I returned the book that I had borrowed.
我已归还了我借的书。
He didn't know a thing about the verb, for he had not studied his lessons. 他对动词一无所知，因为他没有好好学习功课。
I had been at the bus stop for 20 minutes when a bus finally came.
我在车站等了20分钟车才来。
C．将来完成时
1．将来完成时的构成
将来完成时的构成是由“shall/ will + have +过去分词”构成的。
Before long he will have forgotten all about the matter.
不久他就会全然忘记这件事的。
He is somebody now. He will not have remembered his old classmates. 他现在是一个有身份的人了，他可能不会记得老同学了。
Will you have known Kevin for 10 years next month?到下个月你认识凯文该有10年了吧？
2.将来完成时的用法
①表示在将来某一时间之前已完成的动作，并往往对将来某一时间产生影响。 We shall have learned 12 units by the end of this term.
到这个学期末，我们将学完12个单元。
By the time you get home I will have cleaned the house from top to bottom. 你到家之前我将把房子彻底打扫一遍。
Will you soon have finished laying the table?
你会很快摆放好餐桌吗？
注意：
在时间状语从句中，不用将来完成时，要用现在完成时来代替。
When I have finished that, I shall have done all I am supposed to do.
等我做完这件事时，我就做完我该做的所有的事了。
Please don't get off the bus until it has stopped.
请待车停稳了再下车。
②表示推测
You will have heard of this, I guess.
我想你已经听说过这件事了。
I am sure he will have got the information.
我相信他一定得到了这个信息。
四、完成进行时
完成进行时是完成时和进行时的结合，包括现在完成进行时和过去完成进行时。
A. 现在完成进行时
1．现在完成进行时的构成
现在完成进行时是由“have/has been +现在分词”构成的。
He is ill. He's been lying in bed for three weeks.
他病了，已经卧床3个星期了。
Your eyes are red. Have you been crying?
你眼睛红了。你刚刚哭过了吗？
What have you been doing all this time?
这半天你干什么来着？
2．现在完成进行时的用法
①表示动作从过去某时开始，一直延续到现在
现在完成进行时常和all this time, this week, this month, all night, all the morning, recently等状语以及since和for引导的状语连用。
I have been reading Hemingway's Farewell to Arms recently.
我最近一直在读海明威的《永别了，武器》。
She has been reciting the words all the morning.
她整个上午都在背单词。
This is what I have been expecting since my childhood.
这是我从小以来就一直期待着的事情。
②表示动作刚刚结束
My clothes are all wet. I've been working in the rain.
我的衣服全湿了，我刚才一直在雨中干活。
He is dead drunk. He's been drinking with his friends.
他烂醉如泥，他刚才一直在和朋友们喝酒。
③表示一个近期内时断时续、重复发生的动作
You've been saying that for five years.
这话你已经说了五年了。
He has been writing articles to the newspapers and magazines since he became a teacher.
自从任教以来，他一直在为报刊杂志撰稿。
④表达较重的感情色彩
What have you been doing to my dictionary?
看你把我的字典弄成什么样子了！
Time has been flying so quickly!
时间过得可真快啊！
Too much has been happening today.
今天可真是个多事的日子。
3． 现在完成进行时和现在完成时的比较
①现在完成进行时可以表示动作的重复，而现在完成时一般不表示重复性。
Have you been meeting him recently?
你最近常和他见面吗？
Have you met him recently?
你最近见到过他吗？
②现在完成进行时有时含有感情色彩，而现在完成时一般是平铺直叙。
I have been waiting for you for two hours.
我一直等了你两个小时。（可能表示不满）
I have waited for you for two hours.
我等了你两个小时。（说明一个事实）
③现在完成进行时强调动作，而现在完成时强调结果。
Who has been eating the oranges?
谁一直在吃这些桔子呀？（还剩余一些）
Who has eaten the oranges?
谁把桔子吃光了？（强调吃得一个不剩）
B. 过去完成进行时
1.过去完成进行时的构成
过去完成进行时是由“had been +现在分词”构成。
She had been suffering from a bad cold when she took the exam.
她在考试之前一直患重感冒。
Had they been expecting the news for some time?
他们期待这个消息有一段时间了吧？
Rafael was scolded even though he hadn't been doing anything wrong. 尽管拉斐尔没做什么错事，但他还是挨骂了。
2.过去完成进行时的用法
①表示过去某一时间之前一直进行的动作
过去完成进行时表示动作在过去某一时间之前开始，一直延续到这一过去时间。和过去完成时一样，过去完成进行时也必须以一过去时间为前提。
I had been looking for it for days before I found it.
这东西我找了好多天才找着的。
They had only been waiting for the bus a few moments when it came. 他们只等了一会儿车就来了。
②表示反复的动作
He had been mentioning your name to me.
他过去多次向我提到过你的名字。
You had been giving me everything.
你对我真是有求必应。
③过去完成进行时还常用于间接引语中（详见第12章）
The doctor asked what he had been eating.
医生问他吃了什么。
I asked where they had been staying all those days.
我问他们那些天是待在哪儿的。
④过去完成进行时之后也可接具有“突然”之意的when分句
I had only been reading a few minutes when he came in.
我刚看了几分钟他就进来了。 She'd only been reviewing her lessons for a short while when her little sister interrupted her. 她温习功课才一会儿，她妹妹就打断她了。
3．过去完成进行时和过去完成时的比较
She had cleaned the office, so it was very tidy.
她已经打扫过办公室了，所以很整洁。（强调结果）
She had been cleaning the office, so we had to wait outside.
她一直在打扫办公室，所以我们不得不在外面等着。（强调动作一直在进行）
第二章 被动语态（一）
第二章 被动语态（一）
语态也是动词的一种形式，表示主语与谓语之间的关系。英语有两种语态：主动语态(active voice) 和被动语态(passive voice)。主动语态表示主语是谓语动作的执行者，而被动语态则表示主语是谓语动作的承受者。
一、被动语态的构成
被动语态是由助动词be加及物动词的过去分词构成，如果有必要强调动作的执行者，动作执行者可以由介词by引出的短语表示。助动词be随主语的人称、数、时态和语气的不同而变化。
A. 十种常见时态的被动语态
1. 一般现在时
主动语态：do
被动语态：amisare done
We clean the classroom every day. 我们每天打扫教室。
The classroom is cleaned by us every day. 教室每天都由我们打扫。
Such songs are usually sung by girls. 这些歌通常是女孩子们唱的。
Russian is not taught in our school. 我们学校不教俄语。
Are many goods shipped abroad every day 每天都有许多货物运往国外吗
2. 一般过去时
主动语态：did
被动语态：waswere done
We cleaned the classroom yesterday. 昨天我们打扫了教室。
The classroom was cleaned by us yesterday. 昨天教室被我们打扫了。
The window was broken by my son. 窗子是我儿子打破的。
Were many trees planted on the hill yesterday 昨天山上种了许多树吗？ How much money was stolen in all 一共被偷了多少钱？
3. 一般将来时
主动语态：willshall do
被动语态：willshall be done
We will clean the classroom soon. 我们很快要打扫教室。
The classroom will be cleaned soon. 教室很快要被打扫了。
The work will be done immediately. 这工作将马上做。
Will the school sports meeting be held next week？ 校运动会将在下星期举行吗？ When shall we be given a lecture on the Internet 什么时候给我们作有关因特网的讲座？
4. 一般过去将来时
主动语态：would do
被动语态：would be done
We told him that we would clean the classroom soon. 我们告诉他我们马上就打扫教
室。
We told him that the classroom would be cleaned soon. 我们告诉他教室很快就会被打扫的。
He said that a new trade center would be built in the centre of the city. 他说一个新的贸易中心将在市中心建起来。
She asked whether their plan would be considered with great care. 她问他们的计划会不会得到仔细的考虑。
I wasn't told that I should be invited to the party. 没人告诉我要被邀请出席晚会。
5. 现在进行时
主动语态：amisare doing
被动语态：amisare being done
We are cleaning the classroom now. 我们现在正在打扫教室。
The classroom is being cleaned now. 教室现在正在被打扫。
A hospital is being built in the centre of the town. 镇中心正在兴建一家医院。 Are the babies being taken care of by this nurse 这些婴儿正由这个护士照看吗？ How is the new teaching method being tried there 那里是怎样试行这种新教学方法的？
6. 过去进行时
主动语态：waswere doing
被动语态：waswere being done
We were cleaning the classroom this time yesterday. 昨天这个时候我们在打扫教室。 The classroom was being cleaned this time yesterday. 昨天这个时候教室正在被打扫
The teaching plan was being discussed at that time. 那时正在讨论教学计划。 Was the TV set being fixed this time yesterday 昨天这个时候电视机正在被修理吗？ The house was being painted when we arrived at his home. 我们到他家时，他家房子正在粉刷。
7. 现在完成时
主动语态：hashave done
被动语态：hashave been done
The classroom looks tidy. We have cleaned it. 教室看起来很整洁。我们已经打扫了。 The classroom looks tidy. It has been cleaned. 教室看起来很整洁。它已经被打扫了
Many foreign films have been shown on TV since last month. 上个月以来，电视中播放了许多外国影片。
The radio has not been turned on yet. 收音机还没开。
Has a new training centre been set up in our town 我们镇上新的培训中心建好了吗？
8. 过去完成时
主动语态：had done
被动语态：had been done
The classroom looked tidy. We had cleaned it. 教室看起来很整洁。我们已经打扫过了。
The classroom looked tidy. It had been cleaned. 教室看起来很整洁。它已经被打扫过了。
His newly written novel had been translated into English by the end of last month.上个月末，他刚写的小说已被翻译成了英语。
She told me that she had been dismissed by her boss. 她告诉我，她的老板已把她解雇了。
Her homework had not been finished when I got home. 我到家的时候，她的作业还没有完成。
9. 将来完成时
主动语态：willshall have done
被动语态：willshall have been done
We will have cleaned the classroom by five o'clock. 我们将在五点之前打扫完教室。 The classroom will have been cleaned by five o'clock. 教室将在五点以前打扫完。 The new books will have been entered in the register before another parcel arrives. 这些新书在下一批书到来前将登记完毕。
How many expressways will have been completed by the end of next year 到明年
年底将建成多少条高速公路？
Before you return my work will have been done. 你回来前我的工作将会做完。
10. 过去将来完成时
主动语态：would have done
被动语态：would have been done
I said we would have cleaned the classroom by 500. 我说我们将在五点之前打扫完教室。
I said the classroom would have been cleaned by 500. 我说教室将在五点以前打扫完。
The headmaster said the article would have been translated by the end of next month. 校长说文章将在下月底翻译好。
The day was drawing near when the dam would have been completed. 大坝完工的日子不远了。
He told me that preparations would have been finished by 600. 他告诉我准备工作将在六点前完成。
B. “get+过去分词”结构
被动语态除常用“be +过去分词”构成外，还可用“get+过去分词”结构。这种结构多用在口语中，强调动作的结果。
The boy got hurt when he was riding to school. 那孩子骑车上学时受伤了。 Did your letter get answered 你收到回信了吗？
注意：
用“get+过去分词”结构时，其后的动作执行者（即by短语）一般不表示出来。 Finally his bike got repaired. 最后他的自行车得到了修理。
As I passed by, my skirt got caught on a nail. 我经过的时候，我的裙子被钉子挂住了。
C．“seemappear +过去分词”结构
有时“seemappear +过去分词”也可以构成被动语态。
She seemed annoyed by his words. 她似乎被他的话搞得很恼火。
The house appears deserted. 这房子好像没人居住。
提示：
并不是所有的“be+过去分词”结构中的be都能被get或seem, appear等词代替。
【误】She got born in a small village.
【正】She was born in a small village. 她出生在一个小村庄。
【误】The old man got offered a large sum of money.
【正】The old man was offered a large sum of money. 这位老人获得了一大笔钱。
【误】Colin got caught cheating in the exam.
【正】Colin were caught cheating in the exam. 科林考试作弊被抓住了。
D．被动语态中常用的介词
1．by表示动作的执行者或施加者
By whom is the book written 这本书是谁写的？
The children were driven indoors by the rain. 孩子们被雨赶进了室内。
2．with表示用某种工具
The wolf was killed with a gun. 狼被枪打死了。
The field was spread with wild flowers. 田野里野花遍地。
3．from表示源于某种物质（看不出原材料）
Good wine is made from grain. 好酒是粮食制成的。
4．of表示用某种材料制成（看得出原材料）
The table is made of wood. 这张桌子是用木头做的。
5．其他介词
You are wanted on the phone. 有电话找你。
He is known to everybody. 大家都认识他。
She was caught in the rain. 她遭雨淋了。
注意：
动作执行者可以由介词by引出的短语表示，但被动语态句子中的by短语并不总是表示动作执行者。
A policeman is known by the clothes he wears. 警察可以通过他的服装辨认出来。（by表示方式）
He was much flattered by her asking him to dinner. 她邀请他吃晚饭，他受宠若惊了。（by表示原因）
The snow was piled high by the gate. 门口雪堆积得很高。（by表示地点）
二、被动语态的用法
英语中，大多数情况下用主动语态比较简练、有力。但是，被动语态也有其特殊的用途，它也是表达思想、描述事物的需要。人们通常在下列情况下使用被动语态：
A. 不知道或不必说出动作的执行者
How is this word pronounced 这个单词怎么发音？
Scientists say that work is done whenever a force moves. 科学家们说，力移动时就做了功。
A greater number of magic English books will be published next year. 明年将有更多的魔法英语书出版。
After war, everything had been destroyed. 战争结束后，一切都被毁坏了。
B. 强调动作的承受者
If you break the school rules, you will be punished. 如果你违反校规，你将受到惩罚。（强调you）
A new Hope School will be opened in our village. 我们家乡将开办一所新的希望学校。（强调a new Hope School）
She is liked by everybody. 大家都喜欢她。
Xiao Li was elected monitor of the class. 小李被选为班长。
C. 动作的执行者不是人而是无生命的事物
The bridge was washed away by the flood. 桥被洪水冲走了。
We were shocked by the news of his death. 我们听到他的死讯极为震惊。
Many accidents were caused by careless driving. 许多事故都是开车不小心造成的。
D. 修辞的需要，为了使句子更加简练、匀称
He appeared on the stage and was warmly applauded by the audience. 他出现在舞台上，受到了观众的热烈鼓掌。
The old professor gave a lecture on American history and was well received. 这位老教授作了一个有关美国历史的讲座，受到大家的热烈欢迎。
I was shown round the school campus by Sean, who had entered the school just a
year before. 肖恩带我参观了校园，他去年刚进这所学校。
E. 为了表示委婉或礼貌，避免提及动作执行者或说话者自己
You've been told many times not to make the same mistake. 你已被多次告知不要犯同样的错误。
Everybody is expected to obey the following rules. 希望大家遵守以下规定。
The control room may not be entered without permission. 非经许可，勿入控制室。 F. 科技文献中为了客观地描述事情及其过程
The film is coated with light-sensitive chemicals, which are changed by the different shades and colours of light. 胶卷上涂了一层感光的化学物质，这些物质因光的不同色度与颜色而改变。
G. 新闻报道中为了体现新闻的客观性
The west-east gas pipeline project was kicked off on July 4, a big event in the nation's west development campaign. 西气东输工程7月4日全线开工，这是国家西部大开发战略的一件大事。
H．有些动词习惯上常用被动语态
He was born in this city. 他出生在这个城市。
The school is situated in the suburbs. 这所学校位于郊外。
注意：
被动语态中的by短语通常可以省去。但如果by短语是句子的重点所在，或者没有by短语全句的意思不完整时，则要保留by短语。
The vegetables didn't taste very good. They had been cooked too long. 蔬菜的味道不好，烧的时间太长了。（不需要动作的执行者）
He arrived at the airport, where he was met by his friend. 他到达了机场并受到朋友的迎接。（没有by his friend，句子的意思不完整）
Everybody was cast down by such news as that. 大家都被那种消息搞得很沮丧。（需要by短语）
第二章 被动语态（二）
三、主动语态变被动语态
中国人的思维的着眼点在动作的施动者，英美人思维的着眼点在动作的承受者。 中国人常这样说：I expect you to be there on time. 我希望你准时到那里。 英美人常这样说：You are expected to be there on time. 希望你准时到那里。
这就是英语中被动语态的使用比汉语中多的原因。由于英语句子的主动语态结构不同，因而变成被动语态的方式也各不相同。
A. 主语 + 谓语 + 宾语
“主语 + 谓语 + 宾语”结构中只有一个宾语，变为被动语态时，将宾语变为主语： They will discuss the plan at the meeting. 他们将在会议上讨论这个问题。
-- The plan will be discussed at the meeting. 这个问题将在会议上讨论。 In the past the king possessed great wealth. 过去国王拥有巨大的财富。
n In the past great wealth was possessed by the king. 过去，巨大的财富为国王所拥有。
B. 主语+谓语+间接宾语+直接宾语
在这个句型中，谓语动词跟有两个宾语。变成被动语态时，一般将通常指人的间接宾语转化成主语，但有时也可将指物的间接宾语转化成主语：
We gave the student some books. 我们给了这个学生几本书。
-- The student was given some books. 这个学生被给了几本书。
-- Some books were given to the student. 几本书被给了这个学生。
His father bought him a computer last week. 上周他父亲给他买了一台电脑。
-- He was bought a computer by his father last week. 上周他父亲给他买了一台电脑。
-- A computer was bought for him by his father last week. 上周他父亲给他买了一台电脑。
注意：用直接宾语作被动语态的主语时，通常要在间接宾语前加上适当的介词(如to, for, of等)，以加强间接宾语的语气。
They awarded him the Nobel Prize. 他们授予他诺贝尔奖。
-- The Nobel Prize was awarded（to）him. 诺贝尔奖被授予给他。
The host had caught us some fish. 主人给我们捉了一些鱼。
n Some fish had been caught for us by the host. 主人给我们捉了一些鱼。（for不可省）
n
C. 主语+谓语+宾语+宾语补足语
在这个句型中，谓语动词后有一个宾语和一个宾语补足语，变成被动语态时，宾语转化成主语，宾语补足语也随之变为主语补足语：
All the villagers painted the houses white. 所有村民都把房子涂成了白色。
-- The houses were painted white by all the villagers. 房子都被所有的村民都涂成了白色。
They kept us waiting for a long time. 他们让我们等了很长时间。
-- We were kept waiting for a long time. 我们等了很长时间。
We regarded him as the best doctor in town. 我们认为他是城里最好的医生。 -- He was regarded as the best doctor in town. 他被认为是城里最好的医生。 注意：
有些使役动词和感官动词,如make, see, hear, watch, notice, observe, listen to等，在主动结构中跟不带to的动词不定式作宾语补足语，在变为被动结构时，不定式应加上to。
We heard him say good-bye to his friends. 我们听见他向朋友们道别。
n He was heard to say good-bye to his friends. 他被听到向朋友们道别。 n
D. 含有情态动词的主动句变被动句
含有情态动词的谓语变成被动语态时，用“情态动词+ be done”构成。
情态动词
cancould
maymight
must
havehad to
willwould
shallshould
ought to
主动形式
cancould do
maymight do
must do
havehad to do
willwould do
shallshould do
ought to do
被动形式
cancould be done
maymight be done
must be done
havehad to be done
willwould be done
shallshould be done
ought to be done
The machine must be operated with care. 这机器必须小心操作。
Such a sentence ought not to be used here. 这个句子不应该用在这里。
What's done cannot be undone. 覆水难收。
People had to be reminded of the danger that night. 那天晚上必须提醒人们当心危险。
E. 含有“be going to do”和“be to do”等结构的主动句变被动句
含有“be going to do和 be to do 等结构的谓语动词，变成被动语态时，分别用“be going to + be done”和“be to + be done”。在这两种结构中，be只有一般现在时和一般过去时两种形式。
The problem is going to be discussed at the meeting. 这个问题将在会上讨论。 This new film is to be shown on TV next week. 这部新片下周将在电视上放映。
F．含有宾语从句的主动句变被动句
带有宾语从句的句子变成被动语态时，通常用it来作为被动句的形式主语，宾语从句保留不变。
They said that he had gone abroad to study English. 他们说他出国学英语去了。 -- It was said that he had gone abroad to study English. 据说他出国学英语去了。 We haven't decided when we should go camping. 我们还未决定什么时候去野营。 -- It hasn't been decided when we should go camping. 什么时候去野营尚未决定。 提示：
带有宾语从句的句子变成被动语态时，为了简练，还可把从句的主语变为被动句的主语，从句的谓语部分还可以变为不定式短语。
We believed that he would succeed. 我们相信他会成功。
-- He was believed to succeed. 人们相信他会成功。
Father expected that I should become an engineer. 父亲希望我成为工程师。
-- I was expected (by my father) to become an engineer. （父亲）希望我成为工程师。
G．祈使句的被动语态
肯定的祈使句的被动语态结构是：Let + 宾语 + be + 过去分词；否定的祈使句的被动语态结构是：Don't + let + 宾语 + be + 过去分词（或Let + 宾语 + not + be + 过去分词）。
Move the desks into the corridor.
-- Let the desks be moved into the corridor. 把课桌搬到走廊去。
Don't trust her.
-- Don't let her be trusted.
-- Let her not be trusted. 不要相信她。
H. 动词短语构成的被动语态
一般情况下，只有及物动词才能跟宾语，而不及物动词不能跟宾语，所以只有及物动词才有被动语态，不及物动词则没有被动语态。但有些不及物动词后面跟上介词或副词后，变成一个动词短语，相当于一个及物动词，因此就可以有被动语态。
The nurses in this hospital look after the patients very well.
-- The patients are well looked after by the nurses in this hospital. 病人在这所医院里被护士们照料得很周到。
They have put off the meeting till next Saturday.
-- The meeting has been put off till next Saturday. 会议已推迟到下周六了。 注意：
在使用被动语态时，千万不要遗漏句末的介词或副词。
Such a bad habit should be got rid of. 这样的坏习惯应该改掉。
All the important matters have now been attended to. 所有重要的事情都得到了处理。
I. 双重被动结构
双重被动结构指的是句中谓语动词和其后的不定式均为被动结构，句子的主语既是谓语动词的承受者，同时又是不定式动作的承受者。
They asked us to discuss the problem at once.
-- We were asked to discuss the problem at once.
-- The problem was asked to be discussed at once. 这个问题被要求立刻讨论。（双重被动）
She offered to buy a recorder for me.
-- A recorder was offered to be bought for me. 有人提出要帮我买一台录音机。（双重被动）
The teacher ordered that we should take the desk away.
-- The desk was ordered to be taken away. 课桌被要求搬走。（双重被动） J．下列句子变成被动语态时，要用with，不用by
Smoke filled the meeting room. 烟充满了会议室。
The meeting room was filled with smoke. 会议室里充满了烟。
A cloth covered the table. 一块布把桌子罩了起来。
The table was covered with a cloth. 桌子上铺着一块布。
K．不能变为被动语态的结构
1．受动词的限制
①表示状态的及物动词，只能用于主动语态。
某些表示状态的及物动词，如have, own, cost, lack, want (缺乏), become (适合), fit,
resemble, fail, last, flee, benefit, hold等作谓语时，不能变为被动句。 She resembles her mother. 她像她妈妈。
He lacks self-confidence. 他缺乏自信。
This hall can hold 2,000 people. 这个大厅能容纳两千人。
②当及物动词have表示“吃饭”、“患病”、“明白”、“知道”等意思时，没有被动语态形式。
Would you have a cup of tea 你要喝杯茶吗？
She had a bad cold yesterday, and now she is feeling much better. 昨天她得了重感冒，现在好多了。
③当动词get，take表示“懂得”、“知道”，owe表示“欠”，cost表示“使失去(生命、健康等)”的意思时，动词没有相应的被动语态。
Do you get me 你明白我的意思吗？
How do you take this passage 这段话你怎么理解？
I owe 50 pounds to you. 我欠你五十英镑。
His careless driving cost his life. 他粗心的驾驶使他丧了命。
2．受宾语的限制
①当宾语是相互代词、反身代词或具有类似相互代词的关系时，动词不能用于被动语态形式。
They simply cannot contain themselves for joy. 他们简直无法抑制内心的喜悦。 He absented himself from a meeting yesterday. 他昨天缺席会议了。
For years the two sisters looked after one another. 多年来两姐妹互相照顾。 ②当宾语前带有主语的形容词性物主代词时，谓语动词通常不能转换为被动语态。
I could not believe my eyes when I saw him still alive. 看到他还活着，我简直不相信自己的眼睛。
The doctor shook his head and then went out without any words. 医生摇了摇头，一句话也没说就出去了。
注意：
动词的宾语是身体的一部分，一般不可变为被动语态，但也有例外。
He fixed his eyes on the oil painting. 他注视着这幅油画。
-- His eyes were fixed on the oil painting. 他的两眼注视着这幅油画。
③当宾语起状语作用，表示数量、重量、大小或程度时，不能用被动语态。
This kind of dictionary costs ten dollars. 这种字典价值十美元。
The case weighs twenty kilos. 这箱子重二十公斤。
④当宾语是同源宾语时，通常不能转换成被动语态。
He laughed a hearty laugh. 他由衷地笑了笑。
She dreamt a sweet dream. 她做了一个美梦。
⑤如果宾语是动词不定式或动词的-ing形式时，谓语动词一般不能变换成被动语态。 He admitted having done wrong. 他承认做错了。
He has decided to go and study abroad. 他已决定出国留学。
⑥如果enter, leave, reach的宾语是地点、国家机关等，不能改为被动语态 He left the army in 1998. 他19xx年退伍。
She entered the hall at once. 她立刻就进入了大厅。
⑦另外，不可拆开的短语动词，如take place, lose heart, belong to, consist of, change colour等，也不能改为被动语态。
The book belongs to me. 这本书是我的。
She caught a very bad cold. 她患了重感冒。
必背：一些常见的不能变为被动语态的动宾词组
catch a cold 感冒
eat one's words 食言
lose heart 丧失信心
lose patience 失去耐心
make a face 做鬼脸
make up one's mind 决心
make bed 铺床
make room for 为??腾出地方
keep watch 守望
keep silence 保持安静
speak one's mind 表明见解
take place 发生
take one's time 从容不迫，别着急
take office 就职
take one's leave 请假
take notes 作笔记
take up arms 拿起武器
take one's place 就位
⑧含有would rather或情态动词dare的句子，不能改为被动语态。
I would rather do it now. 我宁可现在就干这件事。
He dare not do it. 他不敢干那件事。
四、被动语态与系表结构
所谓系表结构，在此指“连系动词+用作表语的动词-ed形式”结构。它与被动语态的形式完全一样，所以在应用时应注意它们的区别。
A. 被动语态中的过去分词是动词，多强调动作；系表结构中的过去分词相当于形容词，多强调状态。前者通常可用by+人或by+抽象名词表动作的执行者，而后者则一般不用。 The gate to the garden was locked by the girl. 花园门被那个女孩锁上了。（被动结构）
The gate to the garden was locked. 花园门锁了。（系表结构）
The tree was blown down by the high winds. 那棵树被大风吹倒了。（被动结构） The tree was blown down when we saw it. 我们看到那棵树时，它已经被吹倒了。（系表结构）
注意：
少数“连系动词be + 用作表语的动词-ed形式”也带by短语。
The old man was surrounded by small children. 老人被孩子们团团围住。（被动语态） Guilin is surrounded by hills and mountains. 桂林周围都是山。（系表结构） We were held up by fog. 我们因雾受阻。（被动语态）
The tree is known by its fruit. 看到果子就知道是什么树。（系表结构）
B. 系表结构一般只用于一般现在时、一般过去时等少数几种时态；而被动语态可用多种时态。
The composition is well written. 这篇作文写得很好。（系表结构）
The composition is being written. 这篇作文正在写。（被动语态）
C. 系表结构中的过去分词可被very, too, so修饰，被动语态中的过去分词须用much修饰。
The boy was too frightened to move. 这孩子吓得动也不敢动。（系表结构） He was very excited.他很激动。（系表结构）
He was much excited by the news. 他听到消息后很激动。（被动结构）
D. be + 不及物动词的过去分词通常是系表结构。
Her money is all gone. 她的钱都花光了。
The honoured guests are arrived. 贵宾们到了。
The moon is risen. 月亮升起来了。
She is grown up. 她长大了。
The leaves are fallen. 树叶落了。
We are prepared for the worst. 我们已准备好应付最坏的情况。
E. 表示“充满”意思的“be + 过去分词 + with”结构多为系表结构。
The mountain is covered with snow all the year round. 这座山终年被积雪覆盖。 The classroom was crowded with pupils. 教室里挤满了学生。
The lake is dotted with fishing boats. 湖里渔帆点点。
The floor was piled with old books. 地板上堆满了旧书。
F. remain, feel, lie, stand 以及 become, grow 等词 + 过去分词结构多为系表结构。 The matter remained unsettled. 这件事悬而未决。
She felt disappointed. 她感到失望。
The road became crowded. 道路拥挤了。
G. 句中有时间状语和地点状语时，一般为被动语态，反之为系表结构。
The bank is closed. 银行现在关门了。（系表结构）
The bank is usually closed at six. 银行通常六点关门。（被动语态）
He is married. 他结婚了。（系表结构）
五、主动形式表示被动意义
英语中有些结构形式上是主动的，而表达的意义却是被动的。
A．某些不及物动词的被动意义
英语中一般只有及物动词才用于被动语态，不及物动词不用于这种结构。但有些时候，某些不及物动词，其主动形式含有被动的意义。
When did the accident occur 事故是什么时候发生的？
Ice-cream always goes well in hot weather. 冰淇淋在暑天销路好。
Does life exist on the moon 月球上存在着生命吗？
B．一些表示“开始”、“结束”意思的动词
Class begins at eight. 八点钟开始上课。
The meeting ended up with warm applause. 会议在热烈的掌声中结束了。
C．一些表示“运转”意义的动词
The machine runs well. 机器运转良好。
His voice records well. 他的音录下来很好。
D．当read, write, translate等动词与表示行为方式的状语连用时
动词read, write, translate, act, add, wash, wear, cook, lock, sell, tear, cut, keep, feel, burn, strike, last等常和表示行为方式的状语连用，表示被动意义。这些动词既是及物动词又是不及物动词。当主语是人时，是及物动词；当主语是物时，是不及物动词，即用主动形式表示被动意义。
The book sells well. 这书的销路很好。
My pen writes smoothly. 我的笔很好写。
The play reads more easily than acts. 这剧本易读不易演。
提示：
这些动词常和情态动词（多半是否定式）连用，表示被动。
His car can't move. 他的车不能开了。
E．表示状态特征的连系动词的被动意义
有些表示状态特征的连系动词，如look, smell, taste, sound, prove, appear, turn out等主动形式表示被动意义。
Good medicine tastes bitter. 良药苦口。
What he said proved to be correct. 他的话证明是正确的。
The flowers smell sweet. 这些花闻起来很香。
Your sentence doesn't sound right. 你这话听起来不大对头。
F．一些动词的进行时态可以表示一个被动的动作
The meat is cooking. 肉正在烧。
The book is printing. 这本书正在印刷之中。
G．有些作表语的不定式，在结构上是主动的，但在意义上却是被动的
She is to blame. 她应该受到责备。
The house is to let. 此房出租。
六、被动形式表示主动意义
英语的被动形式表示主动的意义，主要见于状态被动语态句中。一般说来有以下几种情况。
A．反身动词的被动形式表示主动意义
反身动词（及物动词+反身代词）作谓语时，其宾语反身代词，表示动作返回到执行者本身，主语既是动作的执行者，又是动作的承受者。由于反身动词具有这一特点，在被动结构中动作的承受者，也就是动作的执行者，在句中表现出主动的意义。
He seats himself at the back of the classroom. 他坐在教室的后面。
-- He is seated at the back of the classroom. 他坐在教室的后面。
He lost himself in the forest.
-- He was lost in the forest. 他在森林中迷了路。
He dressed himself in a dark blue suit.
-- He was dressed in a dark blue suit. 他穿着一套深蓝色的衣服。
注意：
有些介词短语作定语或表语时，也有被动的含义。
The tall building under repair is an office building.
正在修建的那座高楼是一座办公楼。
The result is nnow under consideration.
结果现在正在考虑中。
个别介词短语用冠词时表示被动的意义，不用冠词表示主动意义。
The children are in the charge of this nurse.
孩子们由这位护士照管。
This nurse is in charge og the children.
这位护士负责照看孩子们。
B．“引起??感情”等动词的被动形式表主动意义
The teacher is satisfied with what he said. 老师对他所说的感到满意。 We are opposed to unjust wars. 我们反对非正义的战争。
We are prepared to accept his proposal. 我们准备采纳他的建议。
He was tired with playing all day. 玩了一整天他感到很疲倦了。
C．某些表示定位、移位的动词
The earth is tilted a little. 地球有点儿倾斜。
Hundreds of soldiers were stationed around the prison. 数百个士兵驻扎在监狱周围。
The village is located at the foot of a hill. 这个村庄坐落在山脚下。
D．不及物动词的-ed形式与be连用表示主动意义
Spring is come. 春天来了。
The moon was set and it was very dark. 月亮落了，天很黑。
He is advanced in years. 他年纪很大了。
E．表示终止动词的-ed形式
He is done with it. 他做完了这件事。
My fever is gone, but I still have a cough. 我的烧已经退了，但还有点儿咳嗽。 F．一些习惯用法
He was graduated from Beijing University. 他毕业于北大。
You are mistaken. 你弄错了。
He is retired. 他退休了。
G．被动的祈使句
Do be seated. 请坐！
Be prepared, please. 请准备好。
Get washed. 洗吧。
Be concerned more about the well-being of the masses. 多关心群众的生活。 He was married in Beijing. 他是在北京结婚的。（被动语态）
虚拟语气
第三章虚拟语气
虚拟语气（the subjunctive mood），又称假设语气，是谓语动词的一种形式，表示说话人叙述的内容与事实相反，在现实中并不存在，或实现的可能性很小。
一、动词的语气
语气用来区别讲话人对某一行为或事情的看法和态度。英语中的语气(mood)有三种，分别是陈述语气、祈使语气和虚拟语气。
1.陈述语气
陈述语气一般用来叙述事实或就事实提出询问，主要用于陈述句、疑问句和某些感叹句。 Where there is a will, there's a way.有志者事竟成。
Can you help me carry the box upstairs你能帮我把箱子搬到楼上吗？
How I missed the life in the countryside!我多么想念乡村的生活啊！
2.祈使语气
祈使语气表示说话人向对方提出请求或下达命令。
Come this way, please!请这边走。
Don't make any noise, will you别吵，行吗？
Do be careful when crossing the street.过马路时一定要小心。
3.虚拟语气
虚拟语气表示动作或状态不是客观存在的事实，而是说话人的主观愿望、假设或推测等。 If I were a bird, I could fly in the air.如果我是一只小鸟，我就能在空中飞行。 I wish it were spring all the year round.但愿四季如春。
May good luck be yours!祝你好运！
二、条件句中的虚拟语气
英语中条件从句有两类，一类是真实条件句，另一类是非真实条件句。如果假设的情况可能发生，是真实条件句；如果假设的情况是不存在的或不大可能发生的，则是虚拟条件句。
A．真实条件句
真实条件句表示的假设是可能发生或实现的，主句和从句的谓语动词都要用陈述语气。 If he doesn't come at 8, we won't wait for him.如果他八点不来，我们就不等他了。
If a flood happened in the past, there was usually a great loss of life and property. 过去发生洪水的话，常有很大的生命和财产损失。
We shall go there unless it rains tomorrow.如果明天不下雨，我们将去那里。 I'll let you use my bike on condition that you keep it clean.如果你能保持车子干净，我就让你用我的自行车。
B．非真实条件句
在含有非真实条件句的复合句中，主句和从句的谓语动词都要用虚拟语气，其构成有三种形式：
与现在事实相反 if条件句的谓语：were did
主句的谓：would (couldshouldmight) + do
与过去事实相反 if条件句的谓语：had done
主句的谓：would(couldshouldmight) + have done
与将来事实相反 if条件句的谓语：didwere 主句的谓：should do would (couldshouldmight) + do were to do
1．表示与现在事实相反的条件
条件从句用动词的过去式（be动词用were），主句用should（第一人称）或would（全部人称）+动词原形。可用情态动词could, might代替should, would表示情态。
If it were Sunday tomorrow, I would go and see my friends.明天要是星期天的话，我就去看望我的朋友。
If I were you, I should go and try.我要是你，我就去试试。
If wishes were horses, beggars might ride.
如果幻想能成为马匹，叫花子都有了坐骑
would go if they treated me like a slave.要是他们把我当奴隶对待，我就走。
2．表示与过去事实相反的条件
条件从句用动词的过去完成时，主句用should（第一人称）或would（全部人称）+have done，也可用could, might代替should, would。
If I had known your telephone number yesterday, I would have telephoned you.
如果昨天我知道你的电话号码，我就给你打电话了。
If it had not rained this morning, I should have gone shopping.今天早上要是没下雨，我就去买东西了。
The flood might have caused great damages to the people if we had not built so many reservoirs.倘若我们没有修建这么多的水库，洪水就会使人民遭受巨大的损失。
3．表示在将来不太可能实现的条件
表示在将来不太可能实现的条件从句有三种形式：
①weredid
条件从句用动词的过去式（be动词用were），主句用should（第一人称）或would（全部人称）+动词原形。也可用could, might代替should, would。
If he were here tomorrow, I would speak to him.明天如果他在这里的话，我就和他谈谈。
If you dropped the glass, it would break.你要是把杯子掉下来，会打碎的。 If she had time, she could help me.她要是有时间，就会帮我了。
②should do
条件从句中不管什么人称都用should do，可表示有偶然实现的可能性。
If it should rain, the crops could be saved.假如下雨，庄稼可能就有救了。 We would trust him if he should be honest.如果他真是诚实的，那我们就相信他。 ③were to do
条件从句用were + to do。这种形式比较正式，常出现在书面语中，其假设成份很大，实现的可能性很小。
If I were to do the work, I should do it in a different way.要是我做这项工作，我就会以不同的方式去做。
If the headmaster were to come, what would we say to him假如校长来了，我们对他说什么呢？
对比：
将来不太可能实现的三种非真实条件句中的虚拟语气对比
If it snowed tomorrow, I would stay at home.如果明天下雪的话，我就留在家里。 （常用形式）
If it should snow tomorrow, I would stay at home.如果明天下雪的话，我就留在家里。
（可能性较小）
If it were to snow tomorrow, I would stay at home.如果明天要下雪的话，我就留在家里。（可能性最小）
C．省略if的条件句
在书面语中，非真实条件句中有were, had, should时，可以省略if，而把were, had, should放在主语前，用倒装结构。
Were it necessary, I might go without delay.如果需要的话，我可以立即去。（= If it were necessary......）
Had you taken my advice, you wouldn't have failed in the exam.你要是听了我的建议，就不会考试不及格了。（= If you had taken my advice......）
Should I have time, I would call on her.要是有时间，我就去看她。（= If I should have time......）
D．错综条件句
虚拟条件句中的主句和从句涉及的动作发生的时间不一致，这时主句和从句的谓语形式应按照各自动作发生的实际时间来表达。
If you hadn't watched TV yesterday, you wouldn't be so sleepy now.如果你昨天不看电视，你现在也就不会这么困了。（从句yesterday说明过去，主句now说明现在） If they had left home early this morning, they would arrive in half an hour.如果他们今天一早就离开家的话，再过半小时他们就该到了。（从句说明过去，主句说明将来。）
If you hesitated this moment, you might suffer in the future.如果你此刻犹豫不决，你将来会吃苦头的。（从句说明现在，主句说明将来）
注意：
在很多情况下，我们也可以用was来代替当主语是第一人称或第三人称单数时的were。 If were here tomorrow...
也可以说成：If he was here tomorrow...
I wish I were a bird.
也可以说成：I sish I was a bird.
但倒装句型中的were不可被was来替换。
Were I in your position,I would not do it.如果我处在你的位置，我是不会干这件事的。
E．含蓄条件句
非真实条件句中的条件从句有时不表达出来，只暗含在上下文中，这种句子叫做含蓄条件句。含蓄条件句大体有三种情况：
1．条件暗含在短语中
He would not get such a result without your help.没有你的帮助，他就不会有今天的成果。(条件暗含在介词短语without your help中)
But for you, I could not be recovered so soon.要不是有你，我就不会恢复得这么快。(条件暗含在But for you中)
This same thing, happening in the past, would lead to a disaster. 同样的事，如发生在过去，就会酿成大祸。(条件暗含在分词短语happening in the past中)
He must have been there, or he never could know the place so well. 他一定是去过那儿，否则他绝不会对那个地方如此熟悉。(暗含条件是连词or)
2．条件可根据上下文推理出
It would do you no good.这可能会对你没好处。(条件可能是if you should give up the job如果你放弃这项工作的话)
They could have won. 他们本来是会赢的。(条件可能是if they had been patient如果他们有耐心的话)
Such mistakes could have been avoided.这种错误完全能避免。（条件可能是if you had been more careful如果你更加小心一点的话）
Why didn't you tell me about it I should have helped you.为什么你不告诉我？我会帮助你的。（条件可能是if you had told me about it如果你当时告诉我的话） --- Did you go to see him yesterday你昨天去看他了吗？
--- I would have, but someone dropped over to my house for a visit.原想去的，但有人到我家来玩了。（条件是if no one had dropped over to my house for a visit如果没人到我家来玩的话）
3．条件用其他形式来表示
She was ill, otherwise she would have been present at the meeting.她病了，否则的话就会出席会议了。（条件通过连词otherwiseor表示出来If she had not been ill...） I told him to go there himself, but perhaps I should have gone together with him.我让他自己去那里，但也许我应该和他一道去。（连词but暗示条件）
Suppose you were in my shoes, what would you do假若你站在我的立场上，你会怎么办？（用supposesupposingproviding等词表示if）
To talk with her, you would know she could not hear well.如果你同她交谈，你就会知道她的听力不好。（动词不定式带有假设的意思，相当于If you should talk with her...）
Left to himself, he could not have finished the work.要是放任他的话，他是不可能完成工作的。（动词的-ed形式表示条件If he had been left to himself...） 提示：
在很多情况下，虚拟式已变成习惯说法，很难找出其暗含的条件。
You wouldn't know. 你不会知道。
I would like to go with you. 我愿意和你一起去。
三、虚拟语气在各种从句中的用法
虚拟语气除主要用于非真实条件句外，还可用在部分主语从句、宾语从句、表语从句、同位语从句、定语从句和状语从句之中。
A．名词性从句中的虚拟语气
主句中的动词、名词、形容词如表示要求、建议、命令或愿望等含义，与其相关的名词性从句（主语从句、宾语从句、表语从句和同位语从句）中的谓语动词要用虚拟语气。
1．主语从句中的虚拟语气
主语从句通常用于“It is +形容词名词动词的-ed形式+ that ...”结构。主语从句中是否用虚拟语气取决于所用的形容词或动词的-ed形式，其谓语动词常用“should +动词原形”（美国英语常省略should，只用动词原形）。
①表示建议或命令
It is important that we (should) work out a study plan.重要的是我们要制订出一个学习计划。
It will be better that we (should) meet some other time.最好我们在另一个时间见面。
It is suggested that each student (should) sing a song in English.有人建议每个学生都要唱一首英文歌曲。
It is demanded that he should leave at once.要求他立刻离开。
②表示惊讶
It is strange that he should have failed to see his own shortcomings.真奇怪他竟看不到自己的缺点。
It is a pityshame that I should be at school instead of lying here in hospital.真可惜，我应当在学校而不是躺在医院里。
It is natural that you should forget it first.你起先记不住是很自然的。
必背：
常见的要接含有虚拟语气主语从句的词
形容词：important, necessary, urgent, essential, vital, natural, strange, proper等
动词的-ed形式：arranged, suggested, ordered, required, desired, demanded, proposed等
It is necessary that the program (should) be loaded into the computer.有必要把程序输入电脑。
It is strange that he should have learned so much in such a short time.很奇怪他竟然在如此短的时间内学了那么多的东西。
It is desired that we (should) get everything ready by tonight.希望一切在今晚前准备就绪。
2．宾语从句
虚拟语气常用在表示要求、建议、命令或愿望的动词后的宾语从句中。
常见的宾语从句中需用“should+动词原形”的动词有：
一个坚持：insist
两个命令：order,command
三个建议：suggest,advise,propose
四个要求：demand,require,ask,desire
①在suggest（建议）, order(命令), propose(建议), insist（坚持要做）, command (命令)，request（要求），advise（建议）等动词后的宾语从句中，谓语动词用should +动词原形（美国英语常省略should）。
The examination instructor asked that the students (should) not use a calculator.考官要求学生不要使用计算器。
The workers demanded that their wages (should) be raised by 10 percent.工人们要求增加百分之十的工资。
They requested that he (should) sing a song.他们要求他唱一首歌。
比较：
动词suggest和insist后面的宾语从句，应根据不同情况选用陈述语气或虚拟语气。 suggest作“建议”解时，用虚拟语气，作“使想起、暗示”解时，用陈述语气。
His silence suggested that he agreed with my decision.他的沉默暗示他赞同我的决定。（暗示）
He suggested that I (should) stick to my decision.他建议我坚持自己的决定。（建议）
insist作“坚决要求”解时，用虚拟语气，作“坚持认为”解时，用陈述语气。
He insists that doing morning exercises does good to people's health.他坚持认为做早操对健康有益。（强调）
He insists that he (should) do morning exercises every day.他坚持每天都要做早操。（要求）
②在动词wish后的宾语从句中用虚拟语气，表示不可能实现的愿望。
一般过去时weredid 表示目前不可能实现的愿望
I wish I were a bird.但愿我是一只小鸟。
I wish I knew the answer.我要是知道答案就好了。
过去完成时 had done 表示过去不可能实现的愿望
I wish she had taken my advice.那时她要是接受我的建议就好了。
I wish that I had seen her yesterday.真希望我昨天见过她。
过去将来时wouldcould do表示将来没有把握或不可能实现的愿望
I wish you would stay an hour longer.我希望你再呆一个小时。
I wish it could stop raining.但愿雨能停。
提示：
由于wish和hope的汉语意思差不多，在使用上往往容易出错。wish一般表示“希望”、“但愿”，表示不可能实现的愿望，后接从句时要用虚拟语气；hope表示“希望”，指可以实现的希望，后接从句时用陈述语气。
The students hope that their football team will win the game.学生们希望他们的足球队获胜。（可能实现）
I wish I could see him now.我希望现在就能看到他。（不可能实现）
3．表语从句和同位语从句中的虚拟语气
在表示建议、劝告、命令等含义的名词后的表语从句和同位语从句中，谓语动词要用“should +动词原形”结构。
My advice is that you (should) practise speaking English as often as possible.我的建议是你尽可能经常地练习说英语。
The demand is that the composition (should) be written on one side only.按照要求作文必须单面誊写。
It is my desire that all the members of the family (should) gather once a year.我的愿望是所有家庭成员一年团圆一次。
The suggestion that education (should) be reformed is reasonable.教育要改革的建议是合理的。
必背：
表示建议、劝告、命令等含义的名词常见的有
advice 建议
demand 要求
desire 愿望
decision决定
idea 意见
motion 提议
order命令
proposal提议
requirement 要求
request 请求
regulation规章
suggestion 建议
B．状语从句中的虚拟语气
①方式状语从句
由as if或as though引导的状语从句可以用陈述语气表示可能符合事实的情况，也可以用虚拟语气表示与事实不符或与事实相反的情况。
a.表示与现在事实不相符，用一般过去时
The teacher treats the pupil as if he were her own child.这位老师对待这位学生就像自己的亲生孩子一样。（这位学生并不是她的亲生孩子）
b.表示与过去事实不相符，用过去完成时
I felt as though we had known each other for years.我感觉我们好像认识多年了。（其实并没有认识多年）
c.表示与将来事实不相符，用wouldmightcould
It looks as if it might rain.天看上去好像要下雨。（不大可能下雨）
对比：
He looks as if he is young.看样子他好像很年轻。（他就是年轻）
He looks as if he were young.看样子他好像很年轻。（实际上他不年轻）
②目的状语从句
a.由in case, lest, for fear that引导的目的状语从句，动词用“should +动词原形”结构，表示忧虑或目的。
Please remind me of it again tomorrow in case I (should) forget.请你明天再提醒我这件事，以免我忘记。
She emphasized it again and again, lest he (should) forget.她一再强调这一点免得他忘记。
We had a meeting and talked the matter over face to face for fear that there should be any misunderstanding.
我们开了一个会，面对面谈了这件事，以免发生任何误会.
b.在in order that和so that引导的目的状语从句中，往往用can(could)或may(might)。 I shall write down your telephone number so that I may not forget.我要把你的电话号码记下来，以免忘记。
They worked harder than usual in order that they could finish the work ahead of time.为了能提前完成工作，他们比往常更加努力。
We will tell you the truth so that you can judge for yourself.我把真实情况告诉你，使你能自己作出判断。
③让步状语从句
让步状语从句指事实时，从句谓语动词用陈述语气。若从句内容表示现在和将来的假设情况，从句谓语动词用虚拟语气。
Though he (should) fail, there would still be hope.即使他失败了，仍有一线希望。 I should say the same thing even if he were here.即使他在这里，我还是要这么说。 Whether he (should) succeed or fail, we shall have to do our part.不管他成功还是失败，我们还是要做好自己的事。
However hard it might rain rains, we shall go there together.不管雨下得多么大，今晚我们还是要去那里。
No matter what his social position (might) be, a man is equal in the eye of the law.一个人不论其社会地位如何，在法律面前都是平等的。
C．定语从句中的虚拟语气
在It is (high) time (that) ...结构中，定语从句的谓语动词用过去式，表示“到某人该做某事的时间了”。
It is time that the children went to bed.到孩子们睡觉的时间了。
It is high time that we began the meeting.正是我们开会的时间了。
四、其他句型中的虚拟语气
A．If only......
If only位于句首引起的感叹句用虚拟语气，动词用一般过去时表示目前的愿望，用过去完成时表示过去的愿望，用would或could表示将来。
If only he knew the answer.他要是知道答案就好了。（用过去时表示现在）
If only I could speak several foreign languages！我要是能讲几种外语就好了！（用wouldcould表示将来）
If only you had told me the truth before. 要是你以前告诉我真相就好了。（用过去完成时表示过去）
注意：if only和wish的用法相同，表示的意愿也基本相同。
If only it would rain.但愿天能下点儿雨！= How I wish it would rain.
If only I had known her earlier!要是我早点儿认识她就好了！= I wish I had known her earlier.
B．would rather
would rather, would prefer, would sooner等后接从句，表示“宁愿”，动词用过去时表示当时和将来的情况，用过去完成时表示过去的情况。
I would rather you left today.我宁可你今天走。
I would prefer he didn't stay here too long.我倒希望他不要在这儿呆得太久。 I would rather I hadn't seen that film yesterday.我宁愿昨天没有看那场电影。 提示：
would rather主要有两种用法。
1．后接不带to的不定式
I'd rather play tennis than swim.我宁愿打网球，也不愿游泳。
I'd rather not go to the movies.我宁愿不去看电影。
Which would you rather have, tea or coffee你喜欢喝茶，还是咖啡
2．后接不用连词的that从句
I'd rather you went home now.我希望你现在就回家。
I would rather my daughter attended a public school.我希望我的女儿能上公立学校。
C．表示愿望的感叹句
在表示祝愿的感叹句中，用动词原形，表示愿望。
Long live the People's Republic of China!中华人民共和国万岁！
May you be happy!祝您快乐！
God bless you!上帝保佑你！
Success attend you!祝你成功！
The Lord save us!愿主救我们！
D．情态动词用于虚拟语气
部分情态动词的过去形式（could, might, should, would），可以用于非真实条件句以及其他结构中表示虚拟语气。
1．表示想像或猜测
If I could speak French, I would teach you.如果我会说法语，我就能教你。（我不会，所以不能教你）
If you phoned him right now, you might get the matter settled.如果你现在给他打电话，你就可以把问题解决了。
There could be something wrong with the tape recorder.这台录音机可能出毛病了。 He might have said so.他可能这样说过。
Could he have done such a foolish thing他会做这样的傻事吗？
2．表示委婉或客气
虚拟语气（could, would, might +动词原形）可使说话者的口气变得委婉客气。 You could answer this email for me.你可以替我回这个电子邮件。
Could you leave me your telephone number and address你能将电话号码和地址留给
我吗？
Would you mind opening the window劳驾把窗子打开，好吗？
You might as well put off the discussion till next week.你们不妨把讨论推迟到下个星期。
比较：
would lide to do
愿意，想要
would lide to have done
本来想
I would like (to have) a word with you.我想和你谈一谈。(现在想)
I would like to have talked with you.我原本想和你谈一谈的。（没有谈成）
3．表示惋惜或责备
Given more time, we could have done better.如果给我们更多时间，我们能够干得更好些。（我们并没有得到更多的时间）
You could have got up a little earlier！你完全可以早点儿起来！（实际上没有早起） It was cold yesterday. I should have worn a heavy coat.昨天很冷，我该穿件厚外套的。（但我没穿）
This wall shouldn't have been pained blue.这墙不应该漆成蓝色。（但已漆了） 提示：
当代英语一个显著的变化就是虚拟语气的使用越来越少，许多该用虚拟语气的地方都用陈述语气代替。
He suggested that I went to the hospital at once.他建议我们立刻去医院。（原应用should go）
We shall write down the address lest we forget.我们要把地址记下来，以免忘记。（原应用should forget）
Imagine you are an astronaut.设想你是个宇航员。（原应用were）
情态动词
第四章 情态动词（一）
情态动词表示说话人对动作或状态的各种观点和态度，如需要、猜测、意愿或怀疑等。情态动词有词义，但不完全，是所谓的“辅助性”动词，在句中不能单独充当谓语。
一、 情态动词的特征和形式
A.情态动词的各种形式见下表：
情态动词
may
might
can
could
must
have to
ought to
will
would
shall
should
need
dare
used to
否定式
may not
might not
cannotcan not
could not
must not
do not have to
ought not to
will not
would not
shall not
should not
need not
dare not
used not to
did not use to
简略否定式
mayn't（老式英语，现在不常见）
mightn't
can't
couldn't
mustn't
don't have to
oughtn't to（否定句中to可省略）
won't
wouldn't
shan't（只用于英国英语）
shouldn't
needn't
daren't
usedn't to
didn't use to
B．情态动词除ought to, used to等外，后面只接不带to的不定式。
1．情态动词+do
You shouldn't be so careless.你不该这样粗心大意。
Jessica told him yesterday she might not go on the trip. 杰西卡昨天告诉他，她可能不去旅行了。
Difficulties can and must be overcome.
困难能够而且必须克服。
2．情态动词+be doing
She must be listening to pop music.
她肯定在听流行音乐。
You should be reviewing your lessons.
你应该在复习功课。
My mother maymight be cooking now.
我妈妈可能正在做饭。
3．情态动词+have done
They might have visited the Great Wall.
他们可能参观过长城了。
He must have got up very early to catch the train. 他一定起得很早去赶火车了。
You ought to have come earlier.
你本该早一点儿来。
4．情态动词+be done
This word can also be used as a verb.
这个词也可以用作动词。
Something must be done to stop pollution.
必须采取措施来制止污染。
The work ought to have been finished long ago. 这工作早就该完成了。
C.情态动词第三人称单数一般现在时没有词形变化。
You ought to wear a raincoat.
你应该穿件雨衣。
She ought to wear a raincoat.
她应该穿件雨衣。
Plants must have oxygen in order to live.
为了存活植物必须有氧气。
A plant must have oxygen in order to live.
为了存活植物必须有氧气。
D.情态动词的时态并不是区分时间的主要标志。在一些场合中，情态动词的现在式和过去式都可以表示现在时间、过去时间或将来时间。
I'm afraid it might rain tonight.
我看今晚可能要下雨。
Could I borrow your thermos
我可以借用你的暖水瓶吗？
It's a nice day today. We could go for a walk.
今天天气不错，我们可以出去散散步。
E.情态动词是互相排斥的，一般不允许两个意义相近的情态动词连用。
【误】Soldiers must have to obey orders.
【正】Soldiers have to obey orders.
军人必须服从命令。
【正】Soldiers must obey orders.
军人必须服从命令。
【误】Can I be able to borrow two books at a time
【正】Can I borrow two books at a time
我能一次借两本书吗？
【正】Will I be able to borrow two books at a time
我能一次借两本书吗？
一、 情态动词的意义和用法
A. may和might
1．表示请求、许可，常译为“可以”。
在口语中可用can, could代替may，但在正式场合用may。表示允许时，也可用might代替，might不表示过去时，而是表示口气比较婉转。
You may take this seat if you like.
如果你喜欢可以坐这个位置。
MayCan Could Might I have a talk with you
我可以和你谈谈吗？
--- MayMight I come into the room to see my mother
我可以进房间看我母亲吗？
--- No, you mustn't. She needs to have a good rest.
不，你不能进。她需要好好休息。
提示：
May I ...问句常见的肯定回答和否定回答。
肯定回答
Yes, please.
Certainly.
Yes, of course.
Sure.
Go ahead, please.
否定回答
No, you can't.（最常见）
No, you mustn't.（具有强烈禁止的意思）
Please don't. You'd better not.
I don't think you can.
I'm sorry it's not allowed.
2．表示推测，可译为“可能，也许”。
Your math teacher maymight be in his office. 你们的数学老师可能在办公室里。（一般情况下，might表示的可能性很小）
The light isn't on. It maymight be broken.
那盏灯没有亮，它可能坏了。
There may might be some ink left in the bottle.
瓶子里也许还剩点儿墨水。
注意：
用may表示推测一般不用于疑问句，在疑问句中通常用can来代替。
Can he be at home
他可能在家吗？
--- Can it be true
这可能是真的吗？
--- It may be, or may not be.
可能是，也可能不是。
3．用在目的状语从句中，构成谓语。
He wants to take a taxi so that he may get there in time.
他想坐出租车，这样他就能及时到达那里。
I arrived at the airport earlier in order that I might meet him.
我早早地就到了机场为了能接到他。
4．有时可以用于祈使句表示祝愿。
May you succeed.
祝你成功
May you be happy.
祝你快乐。
May that day come soon.
希望这一天早日到来。
B. can和could
1．表示能力，可译为“能，会”。
I can swim.我会游泳。
Emily can dance well and her mother could dance well when she was young. 艾米丽舞跳得很好，她妈妈年轻时舞跳得也很好。
The cinema can seat 1,000 people.
这电影院能容纳1，000人。
I could not read such an easy book when I was 7 years old.
我七岁时连如此简单的书我也看不懂。
2．表示允许、许可，常用在口语中。could比can语气上要客气。
--- Could I use your dictionary
我可以用一下你的字典吗？
---Yes, go ahead.
可以，用吧。（或Yes, you can.但不能说Yes, you could.）
Could Can you tell me how to get to the zoo
劳驾，你能告诉我怎么去动物园吗？
He asked me whether he could take the book out of the reading room.
他问我可不可以把书带出阅览室。
3．表示推测，可用于肯定句（can罕见）、否定句和疑问句，但更常见于疑问句或否定句。在此种用法中can和could没有时态的区别，只是表示可能性的大小，can表示推测的可能性比could大。
Can he be ill at home
他会是生病在家吗？
Can the story be true
这个故事会是真的吗？
He cannot be at home.
他不可能在家。
You mustn't smoke while you are walking around in the woods. You could start a fire.
在林子里走时一定不要吸烟，那样可能会引起火灾。
4．表示惊异、怀疑、不相信等态度，主要用于否定句和疑问句中。
How can you be so careless
你怎么这么粗心？
Where can could they have gone
他们会去了哪里？
He can'tcouldn't be over sixty.
他不可能超过60岁。
5．Could可以用在虚拟条件句中。
If I could fly, I should be very happy.
如果我能飞，我会很高兴。
If you had followed my advice, you could have finished it.
如果你当时听我的，你早就做完了。
If you had tried harder, you could have passed your exam.
如果你再努力些，你就能通过考试了。
６．can与be able to的区别
①can表示“能力”时，和be able to相当，许多场合都可以互相替换。但当叙述过去经过一番努力才能完成的事情或前面有特殊说明，表示你有能力时，只能用be able to。
【正】Can you speak any foreign languages
你会说外语吗？
【正】Are you able to speak any foreign languages
你会说外语吗？
【误】The fire spread the building quickly but everybody could escape.
【正】The fire spread the building quickly but everybody was able to escape.
大火迅速蔓延到整幢大楼，但大家都逃了出来。
【正】The fire spread the building quickly but everybody managed to escape. 大火迅速蔓延到整幢大楼，但大家都想法逃了出来。
②be able to比can有更多形式。
No one could answer the question.
没人能回答这个问题。（这里could可用was able to代替）
When he grows up, he will be able to support his family.
他长大后就能养家了。
Frank is ill. He hasn't been able to go to school for one week.
弗兰克病了，已经一周没去上学了。
I'm sorry for not being able to help you in time.
对不起，不能及时帮你的忙。
③could经常和动词see, hear, smell, taste, feel, remember, understand等连用。 When we went into the house, we could smell something burning.
当我们走进屋子时，我们闻到什么东西烧焦了。（不用was able to）
She spoke in a very low voice, but I could understand what she said. 虽然她讲话的声音很低，但我还是明白了她说的话。
④在谈论说话时发生的动作，用can，不用be able to。
【误】Look! I'm able to swim.
【正】Look! I can swim.
看，我会游泳了！
C．must和have to
1．must表示有做某一动作的必要或义务，强调主观看法，可译为“必须，应该”。 Everyone must obey the rule.
人人都必须遵守制度。
We must do everything step by step.
我们必须逐步做每件事。
Teachers must be patient enough with their students.
老师必须对学生有足够的耐心。
2．have to表示因客观需要促使主语不得不做某事。
You can't turn right here. You have to turn left.
你不能在这里右拐，你必须左拐。
My eyesight is very poor. I have to wear glasses for reading.
我的视力很差，看书时不得不戴眼镜。
You have to pass a test before you can get a driving licence.
你在取得驾照之前必须先通过考试。
提示：
在口语中，我们可以使用have got to来代替have to.
I've got to work on Sunday.
我不得不星期天工作。
When has Ann got to go
安必须什么时候走？
3．must与have to的比较。
must与have to在表示“必须”这个意思时意义相近，但在用法上有所区别。
①must含有说话者的强烈决意（表示主观的看法），have to则表示外力环境或习惯使然（即表示客观的必要，作“不得不”解）。
I must study hard.
我必须努力学习。（发自内心的决定）
I have to study hard.
我不得不努力学习。（外界因素逼迫）
You must stay for supper.
你必须留下来吃晚饭。（because I want you to）
You have to stay for supper.
你得留下来吃晚饭。（because there is nowhere else to go）
②must只有一种形式，而have to可有多种时态。
They had to put off the sports meet due to the bad weather.
由于坏天气，他们不得不推迟运动会。
These last two days he has had to take a rest at home.
这两天他必须一直在家休息。
③must的否定式和have to的否定式的意思完全不同。
You must keep it a secret. You mustn't tell anyone.
你必须保密，你不可以告诉任何人。（mustn't表示“禁止”）
You don't have to tell me the secret.你不必告诉我这个秘密。
（don't have to意思是“没有必要”= don't need to）
4．must用于表示推测，它的肯定程度比may, might, could大得多，一般只用于肯定句。 ①must do (这里的do通常是状态动词或系动词)，表示对现在状态的推测。
He must be very lazy for his desk is very untidy.
他肯定很懒，因为他的课桌很不整洁。
Carol must get very bored with her job. She does the same thing every day. 卡罗尔肯定对她的工作厌烦了，她每天都做同样的事。
②must be doing表示对现在动作或状态的推测。
Put on more clothes. You must be feeling cold with only a shirt on.
多穿点儿衣服，你只穿一件衬衣，肯定觉得冷。
③must have done表示对过去的动作或状态的推测。
The ground is wet. It must have rained last night.
地面是湿的，昨晚肯定下雨了。
I didn't hear the phone. I must have been asleep.
我没听见电话铃响，我一定是睡着了。
提示：
must表示推测只用于肯定句，否定句和疑问句要用can, could来代替must。 He's just had his lunch. He can't be hungry already.
他刚吃过午饭，不会饿的。
They have just arrived here. They can't know many people.
他们刚到这里，不可能认识很多人。
Leslie walked past me without speaking. He can'tcouldn't have seen me. 莱斯利从我身边走过而没打招呼，他肯定没看见我。
5．must可用来表示根据逻辑推理必然要发生的事，可译为“必然会，总是会”。 We all must die.
我们都会死。
Truth must be out.
真相必然会大白的。
Winter must be followed by spring.
冬天到了，春天还会远吗？
6．must有时可用来表示“偏偏”的意思。
Why must it rain today
为什么偏偏在今天下雨？
When I was taking a nap, a student must knock at the door.
正当我午睡时，偏偏一个学生在这个时候来敲门。
D．will和would
1.will和would可用于第二人称疑问句，表示请求和建议等。would比will委婉客气。 Will you have some tea
你喝点茶，好吗？
Will you share your happiness with us
你可以把你的欢乐与我们共享吗？
Would you pass this book to the student in the last row
请你把这本书传给最后一排的学生好吗？
必背：
WillWould you ...表示请求和建议的答复。
肯定回答
Yes, please.是的，请。
Certainly.当然可以。
Sure.当然了。
All right.好啊！
否定回答
I'm sorry. I can't.对不起，不行。
No, thank you.不，不行。
No, I won't.不，不行。
2．will和would可表示意志、愿望和决心，用于各种人称陈述句。
I will do anything for you.
我愿为你做任何事。
I will never tell you the secret.
我永远不会告诉你这个秘密。
None is so blind as those who won't see.
不愿看的人眼睛最瞎。
They would not let him in because he was poorly dressed.
他们不让他进去因为他衣着破旧。
3．will和would可表示某种倾向或习惯性动作。will表示现在的习惯动作，would表示过去的习惯动作。
He will surf the Internet every night.
他每天晚上都在上网。
The boy will sit there hour after hour looking at the traffic go by. 那男孩常常坐在那儿好几个钟头，看着车辆行人通过。
He would be nervous when he met strangers.
遇见陌生人时他总是很紧张。
In class he would ask some silly questions, and his classmates would laugh at him.
课上，他总是问一些蠢问题，他的同学们总是嘲笑他。
4．will可表示固执坚持，这时will不可使用'll的简略形式。用于非人称主语时，表示物体的固有性质和倾向。
I will take the job, and no one can stop me.
我就要这个工作，没有人可阻止我。
He won't do what he's told.
他就是不愿按所吩咐的去做。
The window won't open.
窗子打不开。
This glass will not crack under heavy pressure.
这种玻璃在重压下也不会破碎。
5．will表示将来时间时，不可用于条件状语从句，但will表示意愿或决心时，可用于条件状语从句。
If you will read the book, I'll lend it to you.
如果你愿意读这本书，我会把它借给你。
If you will give up smoking, your health will improve.
如果你愿意把烟戒掉的话，你的健康状况就会好转。
6．will和would可表示推论或猜测。
The patient took the sleeping pills an hour ago. He will be asleep now. 病人一小时前吃的安眠药，现在应该睡着了。
It would be about ten when he left home.
他大约在十点钟离开的家。
I thought he would have told you about it.
我认为他已告知你此事。
It would be raining when she went home.
她回家时可能正在下雨。
比较：
Would you like ...表示邀请
Do you like ...表示习惯
——Do you like going go the cinema
你喜欢看电影吗？
——Yes,I go to the cinema a lot.
是的，我经常去看电影。
——Would you like to go to the cinema tonight 今天晚上去看电影好吗？
——Yes,I'd love to.
非常乐意。
E．shall和should
1．shall
①表示征询意见或请求指示，用于一、三人称疑问句。 Shall I carry it for you
我来帮你搬它，好吗？
Shall we sing a song
我们唱一支歌，好吗？
Shall they wait outside
让他们在外面等吗？
Shall the waiter bring meals to your room 要服务员把饭送到你房间去吗？
提示：
Shall I open the window
我打开窗子好吗？
Will you open the window
你打开窗子好吗？
Shall he open the window
他打开窗子好吗？
②表示说话人的意愿，有“命令、允诺、警告、决心”等意思，用于第二、三人称陈述句中。
You shall do as I say.
按我说的做。（命令）
He shall be sorry for it one day, I tell you.
我告诉你，总有一天他会后悔的。（警告）
You shall fall behind in your exam if you keep playing.
如果你一直玩，你就会在考试中落后。
Nothing shall stop us from carrying out the plan.
什么也阻止不了我们执行这项计划。（决心）
He shall have the book when I finish reading.
我看完这本书就给他看。（允诺）
I shall do my homework after reading this story book.
读完这本故事书后我就做作业。
2．should
①表示义务，意为“应该”（某件事宜于做），用于各种人称。
Children should obey their parents.
儿童应该服从他们的父母。
One shouldn't be selfish.
人千万别自私。
Customers who get bad service should complain, shouldn't they
没有得到满意服务的顾客应该抱怨，不是吗？
②常与what, how, why等词连用，表示意外、惊讶等情绪。
How should I know
我怎么会知道呢
Why should I fear
我为什么会害怕？
What should she do but cry for help
除了呼救外，她还能干什么？
I don't know why you should think I did it.
我真不知道你凭什么认为这件事是我干的。
③表示对过去、现在或将来情况的某种推测，可译为“可能、照说应该”。 It should be fine tomorrow.
明天可能天是晴天。
He should be taking a bath now.
他可能在洗澡。
It's nearly seven o'clock. Jack should be here at any moment. 已经快七点了，杰克随时都可能到这儿。
The film should be very good as it is starring first-class actors. 这部新电影是一流演员主演的，估计拍得很好。
④表示对现在或以前的动作的责怪、批评（应做的事却没做）。
The boys shouldn't be playing football. They should be at school. 这些男孩子不应该在踢足球，他们应该在上课。
You shouldn't have entered the teachers' office without permission. 没有允许你们不应该进老师办公室。
F．ought to
1．表示义务，意为“应该”（因责任、义务而该做），口气比should稍重。 We ought to defend our country.
我们应当保卫我们的国家。（每一个公民应尽的义务）
You ought to respect your parents.
你应当尊敬你的父母。
Oughtn't we to do everything possible to stop pollution
难道我们不应当尽可能地制止污染吗？
2．表示推测，暗含很大的可能，可译为“应该是，会是”。
Prices ought to come down soon.
价格可能会很快下跌。
Han Mei ought to know his telephone number.
韩梅该知道他的电话号码。
There's a fine sunset; it ought to be a fine day tomorrow.
今天有晚霞，明天应该是个好天。
3．ought to和should一样，表示对现在或以前应做的事却没做的责怪、批评。 You ought to be washing your clothes. Why are you playing Ping-Pong 你应该在洗衣服（可是你没洗）。为什么你在打乒乓球？
You ought to have handed in the exercise last week.
你上周就应当交练习。（可你没交，含责备的意思。）
He ought to have asked me before he took my bike.
他在用我自行车之前应该和我讲一声。
4．ought to与should的比较。
ought to和should的含义较近，但不完全相同。ought to表示“应该”，是从“义务”或“按理推断”的角度来讲的。should则是从说话人的个人看法这一角度来讲的。 You are her mother. You ought to look after her.
你是她的母亲，你应当照管她。（是道义上的责任，不能和should互换。）
We should encourage him for we are his classmates.
我们应该鼓励他，我们是他的同班同学啊！
提示：
表示“义务”时，我们在口语中可以用had better或be supposed to来代替should和ought to。
If you are not well, you had better ask Alice to go instead.
如果你不舒服，你最好叫艾丽丝代替你去。
I'm supposed to be there at 8 o'clock.
我应该八点到那里。
G．used to
1．used to表示过去的习惯或过去某时期的状况，但现在已不存在。
He used to drink tea but now he drinks coffee.
他过去总是喝茶但现在他喝咖啡了。（强调现在不喝茶了）
I know where there used to be a river here.
我知道这儿以前哪里有条河。（现在没有河了）
When I was a child I didn't use to like tomatoes.
我小时候不喜欢吃西红柿。
He is not what he used to be.
他已不是原来的他了。
Where did you use to live before you came here
来此之前你住在什么地方？
2．would和used to的用法区别。
①used to表示过去与现在或过去某时与后来的情况有不同，强调“现已无此习惯了”，而would只表示过去的情况，与现在无关。
When he was young, he would smoke a lot.
他年轻时总是吸许多烟。（不含有和现在比较，现在他也许还在抽，也许不抽了。）
He used to live in the country, but now he lives in the city.他过去住在乡下，现在住在城里。
②used to可表示过去的习惯动作或状态，而would只表示过去的习惯动作。 Kate used to be very thin.
以前凯特非常瘦。
There used to be a building at the street corner, but it has been pulled down. 街道拐角处过去有座楼房，现在拆了。（不用would）
③used to可泛指过去的习惯动作或状态，而would表示过去的习惯动作时，往往要带有一个特定的时间状语。
【误】We would play hide-and-seek in the fields.
【正】We used to play hide-and-seek in the fields.
我们过去常在田野里玩捉迷藏。
【正】Whenever we were in the country, we would play hide-and-seek in the fields. 每当我们在乡下，我们都在田野里玩捉迷藏。
H．dare
dare既可用作情态动词，也可用作行为动词，指勇气和胆量上的可能，可译为“敢”。
1．情态动词dare
①dare作为情态动词时主要用于疑问句和否定句，一般不用于肯定句中。 I dare not daren't walk through the forest at night.
我不敢在黑夜穿过森林。
--- Dare you walk through the forest at night
你敢在黑夜穿过森林吗？
--- Yes, I dare.
是的，我敢。
--- No, I daren't.
不，我不敢。
He dare not drive too fast on the rainy day.
下雨天他不敢开得太快。
He dared not do it last year.
去年他不敢做这事。（dare的过去时为dared）
②可以用于表示怀疑的名词性从句中。
I wonder how he dare say such things.
我真奇怪他怎么竟敢说出这样的话。
We don't know whether he dare climb the mountain.
我们不知道他是否敢爬那座山。
③可以用于条件状语从句中。
If the enemy dare enter the village, we'll fight against them to the end. 如果敌人敢进入村里，我们就和他们战斗到底。
If you dare cheat in your exam, I will give you some punishment. 如果你们敢在考试中作弊，我就惩罚你们。
2．行为动词dare
①dare可以作为行为动词，多用于肯定句中，但也可用在疑问句和否定句中 He will dare any danger.
他敢面对任何危险。
He dared me to jump over the stream.
他激我跳过小溪。
Did anyone dare to admit it
有人敢于承认吗？
I have never dared (to) go back to take a look.
我再也不敢返回去看一眼了。（否定句中to可省略）
②和其他行为动词一样，dare在句子中要随着主语的人称和数发生变化。 He doesn't dare to walk at night.
他不敢走夜路。（作行为动词）
He daren't walk at night.
他不敢走夜路。（作情态动词）
Does he dare to walk at night
他敢走夜路吗？（作行为动词）
Dare he walk at night
他敢走夜路吗？（作情态动词）
He didn't dare to walk at night fifteen years ago.
15年前他不敢走夜路。（作行为动词）
He daren't walk (=dared not walk) at night fifteen years ago. 15年前他不敢走夜路。（作情态动词）
Will you dare to do the same experiment tomorrow
明天你敢做同样的实验吗？（作行为动词）
Dare you do the same experiment tomorrow？
明天你敢做同样的实验吗？（作情态动词）
必背：
英语口语中dare的几个常用结构：
●I dare say...
我想,大概,可能,或许??
I dare say things will improve.
我想情况会好转的。
●How dare you ...
你怎么敢??？
How dare you ask me such a question
你怎么敢问我这样的问题？
●I dare you ...
我谅你也不敢??
I dare you to tell your parents!
我谅你也不敢告诉你父母！
I．need
1．情态动词need
need和dare一样，作为情态动词时，主要用于否定句和疑问句，一般不用于肯定句中（在肯定句中常被must, have to, ought to, should等情态动词取代）。作为情态动词，它的词形只有need一种形式。
You needn't return the book now. You can keep it till next week if you like. 你现在不必还书， 如果愿意，你可以下周还。（needn't = don't have to）
Need I hand in my homework now
我现在就要交家庭作业吗？
--- Need he finish the article next week
他要下个星期完成这篇文章吗？
--- Yes, he must.
是的，他必须完成。
--- No, he needn't.
不，他不需要。（= he doesn't have to）
2．行为动词need
need和dare一样，也可以作行为动词，可用于肯定句、否定句和疑问句中。行为动词need有人称和数的变化。
Plant needs water.
植物需要水。
My shirt needs a button.
我的衬衫需要一枚钮扣。
My car needs repairing.
我的车该修理了。
He has grown up. We don't need to worry about him.
他已经长大了，我们不必为他担心。
You don't need to buy so many things for the picnic.
你不必为这次野餐买这么多东西。
Patience is needed for that job.
干那工作，需要耐心。
提示：
Need作为情态动态时，不要用于肯定句中。
【误】She need do her homework by herself. (need作为情态动词时，不用于肯定句中)
【正】She needs to do her homework by herself.
她该独立完成家庭作业。
第四章 情态动词（二）
一、 情态动词+动词完成式
“情态动词+have done”是情态动词的一个十分重要的结构，这种结构有两个主要的用法。
表示对过去发生的动作或状态的推测或估计
may might have done
表示“大概已经”
通常用于肯定句和否定句。
might有时可用于疑问句。
can could have done
表示“可能已经”
通常用于疑问句和否定句。
could有时可用于肯定句。
must have done
表示“一定已经”
只用于肯定句，具有较大的可能性
should have done表示“该”,可能性较小
表示对过去发生的动作的遗憾或责备
might have done
表示“本可以
通常用于肯定句
could have done
表示“本可以
通常用于肯定句。
should have done
表示“应该
可用于肯定句、否定句和疑问句。
ought to have done
表示“应该”
同should have done。
needn't have done
表示“本没有必要”
只用于否定句。
A．may /might /have done
1．表示对过去事实不大肯定的推测，常译为“可能已经”。
They might have taken a later train.也许他们乘坐的是晚一点儿的火车。
He seems to know the city quite well. He may have been there before.他似乎对那个城市很熟悉，他以前可能去过那儿。
2．表示“本来应该或可以做但没有做某事”，含有轻微的责备口吻或遗憾。
You might have given him more help, though you were busy.你本来应该给他更多的帮助，虽然你很忙。
The proposal might have been refused.这个建议本该拒绝的。
B．cancould have done
1．表示对过去事实的推测，常用于否定句和疑问句。
He can't couldn't have watched TV yesterday for he knew they would have an exam.昨天他不可能看电视，因为他知道快要考试了。
I don't know why she didn't call me yesterday. Can (Could) she have forgotten my telephone number我不知道昨天她为什么没给我打电话，难道她会把我的电话号码忘了吗？ He didn't come to school yesterday. Can he have been ill他昨天没来学校，难道他生病了？
2．could可表示对过去能做而未做的事感到惋惜、遗憾，可译成“本来是可以??的”。 Why didn't Sophie apply for the job She could have got it.为什么索菲不申请这项工作？她本来是能得到的。
Why did you stay at a hotel when you went to New York You could have stayed with Barbara. 你到纽约时为什么住宾馆？你完全可以和芭芭拉住在一起的。
Given more time, we could have done the work better.如果给我们更多的时间，我们完全可以把这项工作干得更好。
C．must have done
1．表示对过去事实有把握的推测，具有较大的可能性。只用于肯定句中，否定句和疑问句用cancould have done。
His watch must have stopped.他的表肯定停了。
--- I rang your flat yesterday. A man answered but I didn't recognize the voice.昨天我给你家打电话，一位男士接了电话，但我没听出来是谁的声音。
--- Oh, it must have been my brother Peter. 哦，那一定是我哥哥彼得。
2．用于虚拟语气中时，表示与过去事实相反。
You must have caught the bus if you had got up earlier. 如果你早一点儿起床的
话，你准能赶上那一班公共汽车了。（事实上没有赶上公共汽车）
He must have won the game if he had been careful enough.如果他足够细心的话，他准能赢得比赛。.
D．needn't have done
用于对过去的责备，表示“没有必要做某事，可是做了”。
The airport is close to us. You needn't have hurried there early.机场离这儿很近，你没必要早早地赶到那里。（可是你早早地到那儿了）
He is still young. You needn't have sent him such an expensive present.他还小，你没必要送他这么昂贵的礼物。
注意：
如表示“过去不必做也没有做”之意，需用didn't need to do。
It is not cold today. I didn't need to take the thick sweaters out.今天天气不冷，我没有必要把厚毛衣拿出来。（实际上也没拿）
E．shouldought to have done
1．表示对过去动作的责备或批评。
You should have gone over your lessons. (In fact you didn't go over your lessons.)你们应把功课复习好的。（可事实上你们没有。）
You shouldn't have watched TV last night. (In fact you watched TV last night.)你们昨天晚上本不该看电视。（可你们看了。）
You oughtn't to have entered the teachers' office without permission.没有经过允许，你们本不该进老师的办公室。
You oughtn't to have gone to the deserted place alone. 你不该独自去那荒凉之地。
2．表示期待或推测。
If the flight was on time, you should ought to have arrived in Shanghai early this morning.如果航班准点的话，你今早就能到上海了。
The building should ought to have been completed by the end of the week.这幢
建筑物本周末前应该能完工。
F．would have done
表示与过去事实相反的假设或结果。
I would have been happy to see him, but I didn't have time.我会很高兴和他见面的，但我没时间见他。
If your father had still been alive, he would have felt very proud of you.你父亲如果还健在的话，他会为你骄傲的。
动词不定式 第五章 动词不定式（一）
动词不定式是动词的一种非谓语形式，在句中不能单独作谓语。动词不定式具有动词的性质，它可以有自己的宾语和状语，从而构成动词不定式短语。它还可以有形式的变化，即一般式、进行式、完成式和被动式。同时，动词不定式也具有非动词的性质，相当于一个名词、形容词或副词，可以在句中担任主语、宾语、宾语补足语、表语、定语和状语。
一、动词不定式的特征和种类
动词不定式是由不定式符号to+动词原形构成，在某些情况下to也可省略。
A．不定式的一般式
不定式的一般式表示的动作通常与主要谓语的动作同时或几乎同时发生，或是在它之后发生。
He appears to be very happy.他看起来好像很高兴。（同时发生）
To catch the train, we'd better hurry to the station by taxi.为了赶上火车，我们最好赶紧乘出租车去车站。（to catch the train发生在hurry to the station之后）
B．不定式的进行式
不定式的进行式表示正在进行的或与谓语动词同时发生的动作。
It happened to be raining when I got there.我到达那里的时候，天碰巧在下雨。 I'm glad to be traveling with you.我很高兴和你一起旅游。
C．不定式的完成式
不定式的完成式表示的动作在谓语表示的动作之前发生。
I'm sorry to have lost your key.我很抱歉把你的钥匙弄丢了。
I meant to have finished my work last night, but I didn't feel very well.我本来想昨晚完成工作的，但是我感觉身体不舒服。
It has been an honor for me to have been invited to your country.对我来说，被邀请来你们国家是一件很荣幸的事情。
D．不定式的完成进行式
不定式的完成进行式表示的动作在谓语之前发生并且一直进行着。
He was said to have been living in London for twenty years.据说他在伦敦一直住了20年。
I'm sorry to have been interrupting you.很抱歉，我一直打扰你。
比较：
不定式的时态意义。
He is said to be studying abroad.据说他正在国外读书。（不定式的进行式表示动作正在进行）
He is said to have studied abroad.据说他在国外学习过。（不定式的完成式表示动作已经结束）
E．不定式的被动形式
当不定式逻辑上的主语是这个不定式表示的动作的承受者时，不定式一般要用被动形式。不定式的被动形式根据其与谓语动作发生的先后关系，有一般式和完成时两种。
1．一般式to be done
These are the books to be given out to the students.这些是要发给学生的书。
He asked to be sent to the place where he was most needed.他要求被派往最需要他的地方。
2．完成式to have been done
The novel is said to have been translated into many languages.据说这部小说已被译成多种语言。
He appeared to have been questioned for many times.看起来他已经被询问过很多次了。
F.不定式的否定形式
不定式的否定形式由not或never加不定式构成。
We decided not to go out because of the bad weather.由于天气不好，我们决定不出去。
Never to have made any mistake is impossible.从不犯错是不可能的。
注意：谓语动词的否定和不定式的否定不同的意义
I did not promise to wake him up.我没有答应叫醒他。
I promised not to wake him up.我答应了不叫醒他。
一、动词不定式的用法
动词不定式除了不能单独作谓语外，几乎能担任句子中所有的句子成分。
A．动词不定式作主语
不定式具有名词的特征，可在句子中充当主语。
1．不定式短语在句首作主语
To know oneself is difficult.人贵有自知之明。
To say is one thing and to do is another.说是一回事，做又是另一回事。
To love and to be loved is the greatest happiness one can get.爱与被爱是一个人能获得的最大幸福。
2．用it作形式主语
在很多情况下，人们通常用it作为形式上的主语，而把不定式移到谓语之后，使句子结构显得平稳一些。
It's rude to turn your back to your teacher and refuse to answer.背对着老师，拒绝回答问题是不礼貌的。
It is impossible to learn a foreign language without making painstaking effort.想不下苦功就能学会外语是不可能的。
It seemed a pity to have wasted so much time.浪费了这么多时间，真是遗憾。 注意：
当主语和表语都是不定式时，不能用形式主语代替动词不定式。
To respect others is to be respected.尊重别人就是尊重自己。
To become a slave is to give up one's freedom.做奴隶就等于放弃自由。
B．动词不定式作表语
不定式作表语可以说明主语的具体内容或表示目的。
His wish is to become an astronaut. 他的愿望是成为一名宇航员。
What he hoped was to be admitted into the university.他希望能被大学录取。 To live is to do something worthwhile.活着就是要做一些有价值的事情。 注意：
有些作表语的不定式，在结构上是主动的，但在意义上却是被动的。
She is to blame.她应该受到责备。
The house is to let.此房出租。
The result is not long to see.结果不久就会看到。
C．动词不定式作宾语
不定式可以充当部分及物动词的宾语，也可以充当but和except等介词的宾语以及形容词的宾语。
1．作动词的宾语
①不定式可以充当部分及物动词的宾语。
Father likes to listen to music in silence. 父亲喜欢静静地听音乐。
He prefers to be starved to death rather than beg. 他宁愿饿死也不愿乞讨。 I never thought to meet you here.我没想到在这里遇见你。
必背：
可接不定式作宾语的动词有： afford负担得起
agree同意
aim以??为目标
ask要求
attempt尝试
begin开始
care喜爱
choose决定
continue继续
decide决定
desire要求
determine决心
expect期待
fail不能
forget忘记
hate不愿
hope希望
ntend打算
manage设法
mean打算
offer表示愿意
plan计划
prefer宁愿
pretend假装
promise答应
refuse拒绝
remember记起
try努力
want想要
wish希望
②在feel, find, make, think, consider等动词后，如果宾语带有宾语补足语时，人们常常用it作形式宾语，而把真实宾语放在宾语补足语之后。
I found it possible to work out the problem without a computer.我发现有可能不用计算机而解出这道题目。
She made it a rule to get up at five.她养成了五点起床的习惯。
I feel it a great honor to be invited to speak at the meeting before so many students.我觉得被邀请在会上面对这么多学生发言是一件很光荣的事情。
③在表示“希望、打算”等动词（如hope, expect, intend, mean, want等）的过去式后，可接动词不定式的完成式来表示没有实现的动作。
I intended to have called on you, but was prevented from doing so.我原想来拜访你的，但没来成。
I expected to have met him here last night.我以为昨天晚上能在这里见到他。（但没做到）
We meant to have stayed there a week.我们原打算在那儿呆一个星期的。
I wanted to have dropped her a line, but forgot to do so.我原想写一封信给她，但忘记了。
提示：
表示“原打算、原以为”还可以用这类动词的过去完成时来表达。
I had intended to call on you.我原想来拜访你的。
I had expected to meet him here last night.我原以为昨天晚上能在这里见到他的。 We had meant to stay there a week.我们原打算在那儿呆一个星期的。
2．作介词的宾语
不定式可以作介词but和except的宾语。
The teacher made no comments except to tell him to work hard.老师除了叫他努力学习外，未做任何评价。
He had no choice but to sit there as usual. 他没有什么选择，只好像往常一样坐在那儿。
There is nothing we can do but wait patiently. 我们只能耐心等待。
3．作形容词的宾语
不定式作形容词的宾语有两种句型，一个是句子的主语是不定式的逻辑主语，另一个是句子的主语是不定式的逻辑宾语。
①句子的主语是不定式的逻辑主语。这类形容词有able, afraid, angry, anxious, careful, clever, content, cruel, determined, disappointed, eager, foolish, fortunate, frightened, happy, impatient, glad, lucky, naughty, prepared, proud, ready, slow, shocked, sorry, surprised, willing等。
I am sorry to say that he is going from bad to worse. 很遗憾，他的情况每况愈下
She was not content to live a quiet life in a small town.她不满足在一个小镇里过默默无闻的生活。
John was happy to be given the job.约翰得到这份工作很高兴。
②句子的主语是不定式的逻辑宾语。这类形容词有easy, hard, cheap, expensive, dangerous, difficult, funny, fit, impossible, interesting, nice, pleasant, simple, strange, useful等。
This problem is easy to solve.这个问题很容易解决。
The water is not fit to drink.这水不适于饮用。
She is hard to get along with.她这个人很难相处。
注意：在这种结构中，如果不定式是不及物动词，则必须加上结构或含义所需的介词。 The river is dangerous to swim in.在这条河里游泳很危险。
A spring mattress is comfortable to sleep on.席梦思床垫睡上去很舒服。
D．动词不定式作宾语补足语
不定式可以在“主语+谓语+宾语+宾语补足语”句型中充当宾语补足语。在这一句型中，宾语是动词不定式的逻辑主语。
1．在表示感觉的动词后作宾语补足语，并且不定式都不带to。这类动词有：see, hear, feel, watch, notice, observe, look at, listen to等。
I heard them sing yesterday.昨天我听见他们唱歌了。
Did you see him go out你看见他出去了吗？
I felt something crawl up my leg.我感到有什么东西爬到我腿上了。
注意：转为被动语态时，原不带to的不定式要变成带to的不定式。notice和watch没有被动语态。
We saw the car stop.
The car was seen to stop.我们看见这辆车停了下来。
2．在使役动词后作宾语补足语，不定式不带to。
这类动词有：make, let, have等。转为被动语态时，其后通常都用带to的不定式（have没有被动语态）。
有些动词跟不定式作宾语补足语时省去了to，这些动词有：
一感二听三让四观看。
一感：feel 二听：hear,listen to 三让：let,have,make 四观看：observe,see,watch.,look at
What would you have me do你要我做什么？
She made him give up smoking.她让他戒了烟。
Let him do whatever he wishes to do.他想干什么就让他干吧。
Though he had often made his little sister cry, today he was made to cry by his little sister. 虽然经常是他弄哭小妹妹，但今天他却被小妹妹弄哭了。
3．在表示心理状态的动词后作宾语补足语。这类动词有：consider, think, believe, discover, find, imagine, judge, suppose, prove等。这类动词后的不定式通常是“to be+形容词或名词”结构，think, consider, find后的to be常可省略。
We consider him (to be) a good teacher.我们认为他是一个好老师。
He proved that theory (to be) very important. 他证明那个理论是很重要的。 I thought her (to be) nice and honest the first time I met her.我第一次见到她的时候就认为她人很好，很诚实。
4．在表示情感状态的动词后作宾语补足语。这类动词有：love, like, prefer, hate, want,
wish, expect等。
I'd prefer you to leave him alone.我希望你不要打扰他。
I don't want there to be any trouble.我不想有任何麻烦。
5．动词advise, allow, ask, beg, command, tell, invite, force, oblige, get, help, encourage, persuade, permit, remind, request, order, warn, cause等后面，多接不定式短语作宾语补足语。
We don't allow such things to happen again. 我们不容许这种事情再发生。 Most of the parents agree to forbid their children to smoke.大多数父母都同意禁止自己的孩子抽烟。
She asked me to answer the phone in her absence.她请我在她不在的时候接电话。 Please remind me to leave her this note.请提醒我留给她这张纸条。
She requested him to go with her.她邀请他一同去。
注意：hope, demand, suggest等动词后面不能接不定式作宾语补足语。
【误】I hope you to give me a hand.
【正】I hope you can give me a hand.我希望你能帮我一把。
【正】I wish you to give me a hand.我希望你能帮我一把。
【误】He demanded me to be present at the meeting.
【正】He demanded that we should be present at the meeting.他要求我们出席会议。
【正】He required us to be present at the meeting.他要求我们出席会议。
【误】Mr Li suggested her not to go there alone.
【正】Mr Li suggested that she should not go there alone.李先生建议她不要独自去那里。
6．动词不定式也可作一些短语动词的宾语补足语。
I'm waiting for James to arrive.我正等着詹姆斯的到来。
He's arranged for a car to pick them up at the station.他已安排了一辆汽车去车站接他们。
The UN has called on both sides to observe the ceasefire.联合国号召交战双方遵守停火协定。
必背：
这些带介词的短语动词有：
call on号召
arrange for 安排
ong for盼望
wait for等待
depend on 依靠
rely on 指望
E．动词不定式作定语
不定式作定语通常放在其修饰的名词或代词之后，和被修饰的名词或代词之间是主谓关系、动宾关系、同位关系和修饰关系。
1．主谓关系
The future to greet us will be bright.我们的未来会十分美好的。
He is always the first person to come and the last one to leave. 他总是第一个来最后一个离开。
The next train to arrive was from New York.下一列到站的火车是从纽约开来的。
2．动宾关系
On Sundays, he always has a lot of letters to write.星期天，他总是有许多信要写 The teacher left us a lot of problems to solve.老师给我们留了许多道题要解答。 He can find no one to make friends with.他找不到可交朋友的人。
注意：由于动词不定式与其修饰的词之间往往有动宾关系，因此，如果该不定式是不及物动词，其后应有必要的介词。
She has a child to take care of.她有一个孩子要照看。
There is nothing to worry about. 没什么可担心的。
He has no friend to depend on.他没有可依靠的朋友。
I've got a lot of things to see to this morning. 今天上午我有许多事情要处理。
3．同位关系
He broke his promise to write to his parents regularly.他没有遵守诺言定期给他父母亲写信。
We students should have the courage to face any difficulty.我们学生应该有勇气面对任何困难。
I have no wish to quarrel with you.我不想和你吵架。
4．修饰关系
Now it is time to begin our class.现在是上课的时间了。
I need somewhere to take a nap.我需要一个地方打个盹。
Is that the way to open the can那就是打开罐头的方法吗？
F．动词不定式作状语
不定式作状语可以表示行为的目的、结果、原因、条件等。
1．表示目的
I'm saving up to buy a computer.我在存钱买电脑。
To save the child, he laid down his life.为了救那个孩子，他献出了生命。
注意：有时为了强调或突出这种目的，也可以用in order (not) to do,和so as (not) to do结构（so as to do不可以置于句首）。
He shouted and waved in order to be noticed.为了吸引注意，他又嚷嚷又挥手。 I'll write down his telephone number so as not to forget it.我要把他的电话号码记下来，以防忘记。
2．表示结果
He got to the station only to find the train had gone.他赶到车站，发现火车已经开走了。
What have I said to make you so angry我说了什么话使你气成这样？
After the meeting, they parted, never to see each other again.散会后，他们分手了，从此再也没有见面。
必背：不定式表示结果常见于下列句型。
1）so ... as to do
Would you be so kind as to lend me your bicycle把你的自行车借给我好吗？
2）such ... as to do
We are not such fools as to believe him.我们还没蠢到竟会相信他。
3）enough to do
He didn't run fast enough to catch the train. 他跑得不够快,没赶上火车。
4）only to do
He lifted a rock only to drop it on his own feet.他搬起石头砸自己的脚。
5）too ... to do
His eyesight is too poor to read such small letters.她的视力太差了，不能看这么小的字。
注意：too...to...结构中的形容词如果是eager, pleased, happy, ready等，动词不定式不表示结果，也没有否定的意思。
The boy was too eager to get a geography book.那个男孩非常急切地想要得到一本地理书。
He is too anxious to know the examination results.他很急切地想知道考试结果。
3．表示原因
I was a fool not to listen to you at that time. 我当时不听你的话，真是傻瓜。 She wept to find him in such a difficult situation.看到他处于这么困难的情形，她哭了。
4．表示条件
A man would be blind not to see that.一个人如果看不到这点，那他就是瞎子。 How can you catch the train to start so late这么晚才动身，你怎么能赶上火车？
第五章 动词不定式（二）
一、动词不定式的几种常见结构
A．不定式的复合结构
动词不定式的逻辑主语（即不定式动作的执行者）通常是句子的主语或宾语。如果不定式
的逻辑主语不是句子的主语，此时一般用“for +名词（代词）+不定式”来构成不定式的复合结构，这种复合结构在句中可以做主语、宾语、表语、状语、定语。
This box is too heavy for the little boy to carry. 这个箱子让这个小男孩来搬太重了。
That's for you to decide.那个由你来决定。
He stood aside for me to pass.他站到一边让我通过。
I have some books for you to read.我有几本书送给你读
。
B．be +不定式结构
“be +不定式”结构可以表示将来发生的动作，常有以下两种情况：
1．表示命令和指示
The room is to be locked.这房间要上锁。
You are not to stand here.你不能站在这里。
2．表示计划或安排
We are to begin the work next month.我们安排下一个月开始这项工作。
What's to be done next下一步该怎么办？
C．疑问词+不定式结构
疑问词who, what, which, when, where, how, why后加动词不定式构成不定式短语，它在句中可作主语、宾语和表语。
I don't know whether to go to the meeting or not.我不知道要不要去开会。
The problem was how to get rid of the waste thrown by the passengers.问题是如何处理乘客们丢弃的垃圾。
When to visit the Palace Museum has not been decided yet.何时参观故宫博物院还没有决定。
D．withwithout +名词+不定式结构
“withwithout +名词+不定式”结构在句子中通常起状语的作用。
With so much work to do, I shall not be able to go to the cinema with you.有这么多工作要做，我不能和你去看电影了。
With him to stay in the house, I feel quite safe.有他住在家里，我感到十分安全。 Without anything to eat, he died of hunger.由于没有东西吃，他饿死了。
E．It is +形容词+ forof sb + to do结构
在“It is +形容词+ of sb +不定式”结构中，形容词往往表示人物的性格和特征，如kind, silly, good, unwise, clever, wrong, right, foolish, stupid, careless, rude, impolite, bold, thoughtful, honest, bad, sensible, naughty等。在“It is +形容词+for sb +不定式”结构中，形容词通常表示事物的性质，如important, possible, impossible, necessary, difficult, hard, reasonable等。
It's kind of you to think so much of us. 难为你这么为我们着想。(= You are kind to think so much of us.)
How careless it is of him to break such a valuable vase!他真不小心，把如此贵重的花瓶打破了。
It is easy for me to see through his trick.我很容易看穿他的鬼把戏。(=For me to see through his trick is easy.)
It is hard for him to get rid of his bad habits.他很难改掉自己的坏习惯。 比较：
It is good lf you to help me with my English. 你真好，帮助我学英语。（强调you的特征＝You are good to help me.）
It is good for you to give up smoking. 戒烟对你有好处。（强调的是give up smoking这一行为＝Fof you to give up smoking is good.）
F．分裂不定式
动词不定式to do通常是不拆开的，但偶尔也可在不定式符号to和动词原形之间插入一个副词，构成分裂不定式。
He was too ill to completely carry out that program.他病得太重，不能完成那个项目。
He has made up his mind to once more try this method. 他已经下定决心再试试这个方法。
G．用作独立成分的不定式
有一些不定式短语可以作状语修饰整个句子，也可被称为插入语。
To be honest, we are not sure to find the girl in the forest.说老实话，我们不能确保在森林里能找到那个女孩。
To be frank, I don't agree with what you said. 坦率地说，我不同意你说的话。
必背：用作独立成分的不定式
to tell you the truth说老实话
to be frank 坦率地说
to begin with首先
to be brief简言之
to make a long story short长话短说
to be exact精确地说
to say nothing of姑且不说
to conclude总而言之
to be sure诚然，固然
to do him justice说句对他公道的话
so to speak可以这么说
H．用主动式表示被动含义的不定式
动词不定式在句中究竟用主动还是被动，有时比较复杂，主要有下面几种情况：
1．不定式做后置定语，和被修饰的名词或代词构成逻辑上的动宾关系，但又和该句主语构成逻辑上的主谓关系时。
Do you have anything to say on this question针对这个问题你有什么要说的吗？ He is a pleasant person to work with.他是一个与其合作起来令人感到愉快的人。
2．不定式作形容词的宾语，和句子主语构成逻辑上的动宾关系时。
The book is difficult to understand.这本书很难理解。
The chair is comfortable to sit on.这把椅子坐起来很舒服。
3．There be结构中，当说话人考虑必须有人去完成某件事时。
There is nothing to worry about.没什么可担心的。
There is nothing to fear.没有什么可害怕的。
比较：
There is a lot of work to do.有许多事情要做。（表示某人必须做这工作）
There is a lot of work to be done.有许多事情要做。（强调有许多事情必须做） She has two letters to type.她有两封信要打。（自己打）
She has two letters to be typed.她有两封信要打。（别人打）
I．表示虚拟语气的不定式完成式。
I hoped to have met him at the railway station, but he didn't turn up.我本希望在火车站接到他，但他未露面。
We would love to have gone to the match, but the tickets were all sold out.我们原想去看这场比赛的，但票已售完了。
The plane was to have taken off at 9, but something went wrong.飞机原计划九点起飞，但出现了一些故障。
J．用于感叹句。
不定式可用于感叹句，含有惊异、不满、惋惜或赞美等感情色彩。
To think that he should do this!想想，他竟然干出这等事！（表示惊讶） Oh, God, to see her dance !哦，天哪，看看她的舞蹈！（表示赞美）
To think that all the money has been wasted.想想，所有的钱都被浪费掉了！（表示不满）
一、关于不定式符号的几个问题
A．不带to的不定式
1．在口语中，动词原形come和go后可接不带to的不定式。
Go tell her.去告诉她吧。
Come have a glass.来喝一杯。
2．在why引起的一些问句中，疑问词直接跟动词原形或not+动词原形。
Why make so much noise 为什么发出这么大的噪音？
Why not join us 为什么不加入我们？
3．在had better, had best, would rather, would rather...than, would sooner, would sooner...than, cannot but, cannot choose but, cannot help but等结构后直接跟动词原形或not +动词原形。
You'd better listen to your teacher's opinion. 你最好听一听老师的意见。 We had best call for the doctor at once.我们最好马上就请医生来。
She can't do anything but ask silly questions.她一直在问一些愚蠢的问题。
Rather than ride on a crowded bus, he always prefers to ride a bicycle.他宁愿骑自行车，也不愿挤公共汽车。
He cannot but move to another street, because his building has to be pulled down soon.他不得不搬到另一条街上去，因为他住的大楼很快就要被推倒。
We cannot help but admire his courage. 我们情不自禁地钦佩他的勇气。
4．如不定式前有行为动词do，那么在表语从句中的不定式和介词except或but之后的不定式可不带to。
The only thing I could do was go home.我能做的唯一一件事就是回家。
They could do nothing but wait for the doctor to come.他们只能等待医生的到来。
5．在两个动词不定式并列使用时，为了避免重复，后面的不定式符号to可省略。
The little girl hardly knew whether to laugh or cry.这小姑娘不知道是哭好还是笑好。
Can you help me to call him and ask him to attend the meeting at 200 p.m.你能不能帮我打电话给他，叫他下午两点来开会？
6．在help之后，既可用带to的不定式也可用不带to的不定式。
Can I help (to) carry the box for you我帮你搬箱子，好吗？
7．在一些固定搭配中用不带to的不定式。
He let go the rope.他松开了绳子。
I hear say there will be an earthquake soon.我听说不久就要有一次地震。 She made believe she was innocent.她假装清白。
8．在感官动词see, hear, watch, feel, notice以及使役动词make, let, have等后作宾语补足语的动词不定式不带to。
She watched the children cross the street.她看着孩子们穿过了马路。
They made the boy apologize to his friend for being so rude.他们让那男孩因他的粗鲁而向他的朋友道歉。
Don't forget to have him come earlier.别忘了让他早点儿来。
B．不定式符号的单独使用
为了避免重复上文中出现过的动词，可以用不定式符号to来代替上文中出现过的不定式结构。
1．在助动词或情态动词之后，如be going to, used to, have to, ought to, be able to, be about to等。
She must go but you don't have to. 她必须走，但你没有必要。
---Do you think I ought to go to see my doctor 你认为我应该去看医生吗？ ---Yes, I think you ought to. 是的，我想你应该去。
2．在want, decide, like, love, hope, wish, mean, refuse, try等动词之后。 You may go with them if you hope to. 如果你希望的话，你可以和他们一起去。 ---Did you go to see the Great Wall 你游览长城了吗？
---I wanted to, but I was too busy. 我本来想去的，但我太忙了。
3．在做宾语补足语的ask, tell, order, advise, persuade, warn, wish, permit, allow, forbid等动词之后。
Don't do anything unless your father tells you to. 除非你父亲叫你去做，不然不要做任何事情。
---May I use your car 我可以用你的汽车吗？
---No, I forbid you to. 不，我禁止你使用。
4．在对话的答语中的happy, glad, eager, anxious, willing, ready, pleased, afraid
等形容词之后。
---Will you lend me a hand 你能帮我一个忙吗？
---I'm willing to, but I can't now. 我很愿意，但现在不行。
---Would you please come to my birthday party tomorrow明天下午来参加我的生日聚会好吗？
---I'll be glad to.我很乐意。
提示：
如果动词不定式是to be或to have，则一般不省。
--- Did you finish the work你的工作完成了吗？
--- No, but I hoped to have.没有，但我希望已经完成了。
C．介词to和不定式符号to
to既可以是不定式符号，后接动词原形；to也可以是介词，后接名词或动词的-ing形式。英语中有很多常用短语带有to，我们要正确判断to是不定式符号还是介词，千万不可混淆。
1．不定式符号to
He made it a rule to read English aloud for half an hour every morning.他坚持每天早晨朗读半小时英语。
These young lads are longing to go to watch the football match.这几个小伙子极想去看足球赛。
必背：常见的带不定式符号to的短语
be supposed to do应该做某事
be determined to do决心要做某事
fail to do未能做某事
go all out to do全力以赴做某事
have the nerve to do有胆量做某事
have a great mind to do很想做某事
make a point to do坚持做某事
make up one's mind to do决定做某事
take the trouble to do不辞辛苦地做某事
prepare oneself to do有思想准备做某事
2．介词to
If you stick to the truth, you will have nothing to fear.如果你坚持真理，就没有什么可害怕的。
You must get used to getting up early.你必须习惯早起。
Isn't it time you got down to marking those papers难道还没到你定下心来阅卷的时间吗？
必背：常见的带介词to的短语
be used to习惯
be equal to胜任
be given to沉溺于
be opposed to反对
be related to与??有关
devote oneself to献身于
get down to着手做
give rise to引起
lead to导致
look forward to盼望
object to反对
pay attention to注意
put one's mind to全神贯注于
stick to坚持第6章 动词的-ing形式
动词的-ing形式包括传统语法的“动名词”（gerund）和“现在分词”（present participle）两个部分。动词的-ing形式具有动词的特征，同时又具有名词、形容词和副词的特征，因此它可以在句中作主语、表语、定语、宾语、宾语补足语和状语。
一、动词-ing形式的特征和种类
与动词不定式一样，动词的-ing形式也具有动词的特征，有时态和语态的变化，并可带状语、宾语等。
A.动词-ing形式的一般式
1.动词-ing形式的一般式可用来泛指一个动作，没有特别的时间意义。
Swimming is her favorite sport.游泳是她最喜欢的体育运动。
Learning is important to modern life.学习对现代生活很重要。
2.动词-ing形式的一般式可用来表示和谓语动词同时发生的动作。
They went out of the classroom, talking and laughing.他们有说有笑地走出教室。 She listened carefully to her neighbours speaking.她倾听她邻居的讲话。
3.动词-ing形式的一般式有时也可表示在谓语动词的动作之前或之后发生的动作。 I remembered sending him an e-mail last week. 我记得上星期给他发过一份电子邮件。
He suggested taking my daughter to the zoo the next Sunday.他建议下个星期天带我女儿去动物园。
B.动词-ing形式的完成式
动词的-ing形式的完成式表示一个已完成的动作，这个动作发生或完成在谓语动词表示的动作之前。
Having lived in this city for three years, she knows it very well.在这个城市生活了3年，她对这里已很熟悉。
I really regretted having missed such an exciting lecture.错过了这么振奋人心的演讲，我真的很遗憾。
注意：
在现代英语中，作宾语的-ing形式的完成式可用一般式来代替。
I really regretted missing such an exciting lecture.错过了这么振奋人心的演讲，我真的很遗憾。(=I really regretted having missed such an exciting lecture.)
We remembered seeing the film.我们记得看过这部电影。(=We remembered having seen the film. )
C.动词-ing形式的被动形式
动词的-ing形式的被动形式表示它的逻辑主语是-ing形式表示的动作的承受者。
1．一般式的被动形式
The question being discussed is very important. 正在讨论的问题很重要。 I can't stand being kept waiting. 我不堪久候。
2．完成式的被动形式
I heard of his having been chosen to be the coach of the team.我听说他被选为球队的教练。
Having been shown the lab, we were taken to see the school library.在被带去看了实验室之后，我们又被带去参观校图书馆。
D.动词-ing形式的否定形式
动词的-ing形式的否定形式是由not加动词的-ing形式构成。
His not coming made everyone present very disappointed. 他没来使在场的每个人都很失望。
I'm sorry for not being present at the meeting in time.我很抱歉没能按时赴会。 Not knowing his address, I could do nothing but stay at home and wait.不知道他的地址，我只好在家里等着。
Not having studied his lessons very hard, he failed the examinations. 因为没有努力学习功课，他考试不及格。
二、动词的-ing形式的用法
A．动词的-ing形式作主语
1．动词的-ing形式可直接置于句首作主语。
Seeing is believing.百闻不如一见。
Collecting stamps is interesting.集邮很有趣。
Learning about a language is easier than using it.学习有关语言的知识比使用语言容易。
Being invited to the party was a great honor to the family.被邀请参加晚会是这
家人的荣耀。
2．为了保持句子平衡，通常用先行词it作形式主语，而把真正的主语放在句末。
It is easy making plans, but it is difficult carrying them.制定计划很容易，实行它却很难。
It is no use crying over spilt milk. 作无益的后悔是没有用的。
It's a waste of time arguing about it. 争论这事是浪费时间。
必背：动词的-ing形式作主语的几个常用句型。
It's no good talking to him. 和他谈话是没有用的。
It is useless telephoning him. He is not willing to come.给他打电话没用。他不愿意来。
It's worth making an effort. 努力一下是值得的。
There is no saying when it will stop raining. 无法断定这场雨什么时候会停。 There is no joking about such matters. 这种事开不得玩笑。
B．动词的-ing形式作表语
动词的-ing形式作表语的有两种不同的含义：
1．表示主语的内容是什么。
Her job is keeping the lecture hall as clean as possible.她的工作是尽量使报告厅保持干净。
The real question is getting to know the needs of the students.真正的问题是了解学生的需要。
His hobby is collecting stamps.他的爱好是集邮。
2．表示主语具有的特征。
The problem is quite puzzling.这个问题很令人困惑。
It was astonishing to see the animals and plants that are found nowhere else in the world. 看到了世界上其它地方找不到的动植物真是令人惊讶。
The food at the dinner party did not seem very inviting. 宴会上的食物似乎并不诱人。
比较：
一般说来，动词的-ing形式表示一般性、习惯性的动作，或抽象性的动作，时间概念不
强。而动词不定式表示的动作往往是具体的或一次性的动作，特别是将来的动作。 Smoking is forbidden here.这里禁止吸烟。（泛指）
It's not good for you to smoke so much.吸这么多烟对你的身体不好。（具体）
They prefer staying indoors when the weather is cold.天冷时他们喜欢呆在室内。（泛指）
Would you prefer to stay at home this evening今晚你想待在家里吗？（具体
C．动词的-ing形式作宾语
动词的-ing形式既可作及物动词的宾语，也可作介词的宾语。
1．作动词的宾语
能用-ing形式作宾语的及物动词可分两类，一类是只能用-ing形式作宾语，另一类是既可用-ing形式作宾语，也可用不定式作宾语。
①只能用-ing形式作宾语的动词
这类动词只能用-ing形式作宾语，不能用不定式作宾语。
Fancy meeting you here!想不到在这儿见到你了!
I suggest doing it in a different way. 我建议用另一种方法做这件事。
They didn't mind being treated like guests. 他们不在乎被人当作宾客对待。 They admitted smokinghaving smoked in the hall. 他们承认在大厅里抽过烟。 I regret sayinghaving said what I said.我很后悔自己说过的话。
He couldn't help laughing.他情不自禁地笑了起来。
I can't imagine the boy speaking so rudely to you. 我不能想像这个男孩对你说话这么没礼貌。
必背：
只接动词的-ing形式而不接不定式作宾语的动词有
admit承认
appreciate感激
avoid避免
consider考虑
delay耽搁
dislike嫌恶
enjoy喜欢
escape避免
excuse原谅
fancy想不到
feel like意欲
finish完成
forgive原谅
give up放弃
cannot help情不自禁
imagine设想
include包括
keep保持
mention提及
mind介意
miss逃过
put off推迟
practice练习
resist抵制
risk冒险
②既可用动词-ing形式作宾语，也可用不定式作宾语
这类动词虽然既能用-ing形式作宾语，也能用不定式作宾语，但用法并不相同，主要有以下几种情况：
a.有些动词，如attempt, continue, hate, intend, like, love, prefer等，后面接动词的-ing形式或不定式区别不是很大。
They prefer spending to spend their summer vacation in Dalian.他们更喜欢在大连度暑假。
I intend to buy buying an English-Chinese dictionary.我想买一本英汉词典。 提示：应尽量避免接连出现两个动词-ing形式。
I am starting to learn Russian. 我开始学俄语。
避免说：I am starting learning Russian. 我开始学俄语。
b. need, require, want作“需要”解时，后面接-ing形式的主动形式或不定式的被动形式，意义上并无差别，但用-ing形式比较普通。
Your composition needs correcting to be corrected.你的作文需要修改。 His coat wants cleaning to be cleaned. 他的大衣需要洗了。
The old woman requires looking after carefully to be looked after carefully.这个老大娘需要细心地照料。
2．作介词宾语
动词的-ing形式作介词宾语大都和一些固定搭配有关。常见的几种搭配形式有： ①动词+介词+ -ing形式
Jason aims at becoming an astronaut.詹森立志要当宇航员。
I dream of being the best footballer in the school.我梦想成为全校最好的足球队员。
比较：
keep doing继续或保持做某事。（强调动作的持续性）
News lf successes keeps pouring in. 捷报频传。
Keep on doing继续或反复做某事。（强调动作的反复性）
We will keep on trying and.if we get anything done.will notify you. 我们将继续努力。有结果将通知你。
Keep sb doing使某人一直做某事（表示被迫进行的动作）
I'll try not to keep you waiting.我尽量不让你久等。
Keep sb from doing阻止某人做某事（＝preventstop sb from doing）
The stone walls keep the farmer's cows from joining his neighbor's cows. 石头墙使农民家的牛不会混入邻居的牛群中去。
②动词+名词+介词+ -ing形式
Please excuse me for being late.对不起，我迟到了。
What prevented you from joining us last night昨天晚上什么事使你不能和我们在一起
Sandy wasted no time in getting to know the boss's daughter.桑迪很快就开始就和老板的女儿套近乎了。
③名词+介词+ -ing形式
We like his way of teaching English.我们喜欢他教英语的方式。
He has little hope of passing the examination.他几乎没有什么希望通过考试。 I have no difficulty in communicating with foreigners.我在和外国人交谈方面没有什么困难。
④形容词+介词+ -ing形式
I'm tired of having the same food every day.天天吃同样的东西我感到腻烦了。 Peter is angry about not being invited to the party.没有被邀请出席聚会，彼得很生气。
Who's responsible for organizing this conference 是谁负责组织这次大会？ ⑤whathow about + -ing形式
What about going for a walk去散步好不好？
How about playing a game of chess now现在来下盘棋好吗
⑥介词to +动词-ing形式
to既可以是介词，也可以是不定式符号，在使用中比较容易混淆。若是不定式符号，to后接动词原形；若是介词，to后需接-ing形式。
You must get used to washing your face with cold water.你必须习惯用冷水洗脸。 John has admitted to breaking the window.约翰已承认了打碎窗子。
I'm looking forward to seeing you this summer vacation.我盼望今年暑假见到你。 He has devoted his whole life to benefiting mankind.他为全人类的利益献出了自己的一生。
However, others strongly object to developing private cars.然而,另有一些人强烈反对发展私人小汽车。
He is equal to doing this task.他能胜任这项任务。
The man took to drinking shortly after his wife died.他妻子死后不久，这人就开始嗜酒。
Isn't it time you got down to marking those papers难道还没到你安下心来阅卷的时D．动词的-ing形式作宾语补足语
1．动词的-ing形式可以在see, hear, notice, watch, feel, smell, look at, listen to, observe, find等表示感官和心理状态的动词后面作宾语补足语，和一个名词或代词一
起构成复合宾语。
We heard the children shouting upstairs. 我们听见孩子们在楼上叫喊。
I noticed a man running out of the bank when I got off the car.我下车的时候注意到一个男人从银行里跑出来。
I felt my heart beating violently. 我觉得我的心在猛烈地跳动。
2．动词的-ing形式和不定式作宾语补语的区别
在see, hear, feel, watch, notice等感官动词后，既可用动词的-ing形式构成复合宾语，也可用不定式构成复合宾语，两者之间有一定的区别。用动词的-ing形式时，表示动作正在进行；用不定式时，表示动作发生了，即动作的全过程结束了。
He saw a girl getting on the car.他看见一个女孩在上汽车。(She was getting on the car.)
He saw a girl get on the car and drive off. 他看见一个女孩上车开走了。(She got on the car and drove off.)
Do you hear someone knocking at the door你听见有人在敲门吗？(Someone is knocking at the door.)
Do you hear someone knock at the door你听见有人敲门了吗？(Someone knocked at the door just now.)
提示：
如果宾语补足语是一系列的动作，通常只能用不定式来表示，不用动词的-ing形式。 I saw him enter the room, sit down and light a cigarette.我看见他走进房间，坐了下来，点燃了一根香烟。
3．动词的-ing形式也可用在have, get, leave, keep, set, catch等表示“致使”的动词后作宾语补足语。
They should not leave us wondering what they will do next.他们不应该不让我们知道他们下一步要做什么。
I won't have you running about in the room.我不允许你在房间里跑来跑去。 We kept the fire burning all night long. 我们使火整夜燃烧着。
E．动词的-ing形式作定语
1．单个的动词的-ing形式可以作前置定语，一般有两种含义。
①说明被修饰名词的用途和性能。
a reading room= a room which is used for reading阅览室
running shoes= shoes for running跑鞋
a working method = a method of working工作方法
必背：
a sewing machine 缝纫机
a swimming pool 游泳池
a drawing board 画板
a dining car 餐车
a driving permit 驾驶许可证
a walking stick 手杖
a singing competition 歌咏比赛
a waiting room 候车室
②表示所修饰的人或物的动作或状态，在意思上接近一个定语从句，可以表示正在进行的动作，也可表示经常性动作或当时的状态。
developing countries = countries that are developing发展中国家
an ordinary-looking house = a house that looks ordinary看起来很普通的房子 a puzzling problem = a problem that puzzles somebody困扰人的问题
The working people are masters of our country.劳动人民是我们国家的主人。 Let sleeping dogs lie.不要惹麻烦。
必背：
a disappointing play令人失望的戏剧
an astonishing adventure惊人的冒险
boiling water 正在沸腾的水
a sleeping baby 熟睡的婴儿
a barking dog 狂吠的狗
the setting sun 落日
the coming week 下一周
failing sight 逐渐衰退的视力
2．作定语的-ing形式如是一个短语，则应放在被修饰词的后面。
The bottle containing vinegar should be sent to the laboratory.装着醋的那个瓶子应送到实验室去。
They lived in a house facing south. 他们住在一所朝南的房子里。
The book being discussed a lot will be published next month.人们谈论很多的那本书下一个月将出版。
3．有些情况下，动词的-ing形式不能用来作定语，必须使用定语从句。
①作定语的-ing形式表示的动作要与主句谓语的动作同时发生，如两者不能同时发生的话，则需使用定语从句。
【误】The professor coming here yesterday will give us a lecture.
【正】The professor who came here yesterday will give us a lecture.昨天来的教授将要给我们作一个讲座。
②-ing形式的完成式一般只用来作状语，不作定语。
【误】The temple having been destroyed by the earthquake will be rebuilt soon.
【正】The temple which has been destroyed by the earthquake will be rebuilt soon.被地震毁坏的庙宇很快就要修建了。
间吗？F．动词的-ing形式作状语
动词的-ing形式可以作状语，修饰动词，在句中表示时间、原因、结果、条件、让步、行为方式或伴随情况等。-ing形式作时间、原因、条件、让步状语时多位于句首；作结果、伴随情况状语时常位于句末。
1．表示时间，相当于一个时间状语从句。
Seeing those pictures, she remembered her childhood.看到那些画，她想起了自己的童年。（= When she saw those pictures...）
Having made full preparations, we are ready for the examination.我们已经作好了充分准备，现在可以应考了。（= After we have made full preparation...）
2．表示原因，相当于一个原因状语从句。
Not knowing his address, I can't send this book to him.因为不知道他的地址，我不能把这本书送给他。（= As I don't know his address...）
Being ill, he didn't go to school yesterday.由于生病，他昨天没有上学。（= Since he was ill...）
3．表示结果，相当于一个并列谓语。
His father died, leaving him a lot of money. 他父亲死了，留给他许多钱。（= ... and left him a lot of money）
She was so angry that she threw the toy on the ground, breaking it into pieces.她非常生气，把玩具扔在地上，摔成了碎片。（= ... and broke it into pieces...）
4．表示条件，相当于一个条件状语从句。
Going straight down the road, you will find the department store.顺着这条路一直走，你就会发现那家百货商店。（= If you go straight down the road...）
Working hard at your lessons, you will succeed.如果你努力学习，就一定能成功。（= If you work hard at your lessons...）
5．表示让步，相当于一个让步状语从句。
Knowing all this, they made me pay for the damage.尽管知道了一切情况，他们还是要我赔偿损失。（= Although they knew all this...）
Working hard as he did, he was still unable to earn enough money to buy a car.他虽然努力地干，但仍然挣不够买车的钱。（= Though he worked hard as he did...）
6．表示行为方式、伴随情况或补充说明，相当于一个并列结构。
He lay on the grass, staring at the sky for a long time.他躺在草地上，长时间地望着天空。（= ...and stared at the sky for a long time）
She came into the house, carrying a lot of books.她捧着许多书走进了房间。（= ...and carried a lot of books）
三、动词的-ing形式的逻辑主语
A．作主语的-ing形式
-ing形式作主语时，其逻辑主语对于谈话双方是不言而喻的。
Reading aloud is very helpful.朗读是很有好处的。（Reading aloud的逻辑主语是泛
指任何人，因而无需表达出来）
提示：
如果作主语的-ing形式需要自己的逻辑主语时，一般用物主代词或名词所有格（即名词后加's）。
His father's falling ill worried him greatly.他父亲生病使他很着急。（his father是falling ill的逻辑主语）
Your coming to work with us will be a great encouragement to us.你来和我们一道工作，对我们是很大的鼓舞。（you是coming to work with us的逻辑主语）
B．作表语的-ing形式
-ing形式作表语时，其逻辑主语往往是句子中的主语，但作表语的-ing形式也可带有自己的逻辑主语。
What worries me most is Julia's staying too late every night.我担心的是她天天晚上熬夜熬得太迟。（staying too late every night的逻辑主语是Julia）
The main problem is your not having practiced a lot.主要的问题是你缺乏大量的练习。（not having practiced a lot的逻辑主语是you）
C．作定语的-ing形式
-ing形式作定语时，其逻辑主语就是它修饰的名词。
an interesting book一本有意思的书= a book that interests its readers a running stream一条奔流的小溪= a stream that is running
如果-ing形式的逻辑主语是动作的承受者，就要用-ing形式的被动式。
The meeting being held in Beijing now is of great importance.正在北京召开的会议非常重要。（逻辑主语the meeting和“举行”之间的关系是被动的，所以用being held
D．作宾语的-ing形式
-ing形式作宾语时，其逻辑主语常是句子中的主语。如要明确动作的执行者，也可以在-ing形式前加上名词或代词表示逻辑主语。
I can't imagine John's giving a speech in front of so many people.我不能想像约翰会在这么多人前面发言。(John是giving a speech的逻辑主语)
He was awakened by someone knocking at the door. 他被某人的敲门声吵醒了。(someone是knocking at the door的逻辑主语)
The boss understood himhis wanting to leave.老板明白他为什么要离职。（“他”是wanting to leave逻辑主语）
比较：
He insisted on doing it himself.他坚持要自己做。（doing it的逻辑主语是句子的主语“他”）
He insisted on my doing it.他坚持要我做。（doing it的逻辑主语是“我”）
Would you mind opening the window请你把窗子打开好吗？（opening the window的逻辑主语是“你”）
Would you mind my opening the window你介意我把窗子打开吗？（opening the window的逻辑主语是“我”）
E．作宾语补足语的-ing形式
动词-ing形式作逻辑主语时，它的逻辑主语就是它前面的宾语。
We often hear her singing this song.我们经常听见她唱这首歌。（singing this song的逻辑主语是“她”）
We often hear this song (being) sung.我们经常听见这首歌被人唱。（逻辑主语“this song”和宾语补足语“唱”的关系是被动，所以用-ing形式的被动式或-ed分词。）
F．作状语的动词-ing形式
1．动词的-ing形式作状语时，其逻辑主语一般应与句子的主语保持一致。
Entering the classroom, I found nobody in it.走进教室，我发现里面没人。（entering的逻辑主语是I，相当于when I entered the classroom, I found nobody in it.） 如-ing形式表示的动作不是句中主语发出或承受的，那就是误用。这种无依着的-ing形式，语法上称之为“垂悬分词”。
【误】Looking out through the window, the garden was beautiful.（looking out through the window的逻辑主语是the garden，显然不对）
【正】Looking out through the window, we saw a beautiful garden.从窗户看出去，
我们看见一个漂亮的花园。
【误】Reading the evening newspaper, a dog started barking.（逻辑主语是dog，它不会看晚报）
【正】I was reading the evening newspaper when a dog started barking.我看着晚报的时候，一只狗开始叫起来。
2．如不能和句子中的主语保持一致，该-ing形式必须有自己的逻辑主语，通常有名词或代词来担任。
The last bus having gone, we had to walk home.末班车已经开走了，我们不得不走回家。（having gone的逻辑主语是the last bus，而不是we）
Time permitting, the football match will be played on Friday.天气允许的话，足球赛将在周五举行。（permitting的逻辑主语是time，而不是the football match） 注意：
高中阶段有一些固定的-ing形式短语，如generally speaking, judging from..., considering..., talking of..., supposing...等，它们的逻辑主语可以和句子的主语不一致。这种-ing短语可当作一个插入语。
Generally speaking, boys are more interested in science than girls. 一般说来，男孩比女孩对科学更感兴趣。
Judging from his accent, he must come from Canada.从他的口音看，他一定来自加拿大。
Considering how poor he was, we decided to let him attend the concert for free.考虑到他是多么的穷，我们决定让他免费听音乐会。
Supposing it rains what will you do假使下雨，你会怎么办呢？
过去分词
第7章 动词的过去分词形式
动词的-ed形式也是非谓语动词的一种，它具有动词的一些特点，同时也具有形容词、副词的句法功能，在句中可用作表语、定语、状语和宾语补足语等。
一、动词的-ed形式的特征
A．动词的-ed形式是由动词的过去分词构成
动词的-ed形式只有一种形式，即传统语法中的过去分词。绝大部分的动词的-ed形式由动词原形加-ed构成，也有一些动词的-ed形式是不规则的。
1． 规则动词的-ed形式
limit→limited（限制）
pretend→pretended（假装）
escape→escaped（逃脱）
provide→provided（提供）
refer→referred（提交）
drag→dragged（拖）
pray→prayed（祈祷）
supply→supplied（供应）
2．不规则动词的-ed形式
cast→cast（投掷）
spread→spread（传播）
bite→bitten（咬）
forgive→forgiven（原谅）
spit→spat（ 吐）
wear→worn（穿）
fight→fought（搏斗）
lose→lost（丢失）
3．少数动词的-ed形式作定语时，读音与一般过去分词不同
learned a learned professor 一位知识渊博的教授
aged an aged man 老人
beloved his beloved computer 他心爱的计算机
B．动词的-ed形式的否定形式
动词的-ed形式的否定形式是由not或never加动词的-ed形式构成。
Not allowed to go in, he had to wait outside. 不允许他进去，他只好在外面等着。 Never invited to his party, she got angry with him. 从未被邀请过去他的聚会，她很生气。
C．动词的-ed形式的特征
动词的-ed形式有被动的意思，有时也可表示完成的动作。
1．动词的-ed形式表示已完成的动作。
除了作形容词用的-ed形式外，动词的-ed形式可带有完成的意义，有的同时也带有被动的意义。
Born and brought up in the countryside, he was interested in biology. 由于在农村出生并长大，他对生物很感兴趣。
One of the glasses was found broken. 有人发现其中一个杯子破了。
The books, written by Lu Xun, are popular with many Chinese people. 鲁迅写的这些书，受到了许多中国人的喜爱。
2．及物动词的-ed形式一般表示被动的意思。
Given more time, I could have solved that riddle. 要是有充足的时间，我就能猜出那个谜语。（句子的主语I 和动词give之间是被动关系。）
When you speak English, be sure to make yourself understood. 你说英语的时候，一定要让人懂得你的意思。（动词make的宾语yourself和宾语补足语understand之间是被动关系。）
The experience gained in the army was of great value to our study. 在军队获得的经验对我们的学习很有帮助。
3．不及物动词的-ed形式只表示完成的意思，并不带有被动的含义。
an escaped prisoner 逃犯 （= a prisoner who has escaped）
a retired worker 退休工人 （= a worker who has retired）
a newly arrived guest 新来的客人 （= a guest who has just arrived）
We should bring in advanced technology from developed countries from time to time.我们应该不时地从发达国家引进先进技术。
People should pay attention to the changed situation. 人们应该注意到变化了的形势。
二、动词的-ed形式的用法
动词的-ed形式在句中主要起形容词和副词的作用，可以作定语、表语、状语和补语。
A．动词的-ed形式作表语
1．-ed形式在连系动词后作表语，说明主语的状态。
The students are fully prepared. 学生们已做好了充分的准备。
When we got there, the shop was closed. 我们到那儿时，商店已经关门了。
She felt satisfied with her performance on the high-and-low bars. 她对自己在高低杠上的表现感到很满意。
The land remained unexploited. 这片土地尚未开发。
Hearing the news, he looked disappointed. 听到这个消息，他看起来非常失望。 The top of the mountain is covered with snow all through the year. 山顶上终年积雪覆盖。
比较：
要把-ed形式作表语和被动语态区别开来。作表语的-ed形式表示状态，被动语态中的-ed形式表示被动动作。
All the doors are locked. 所有的门都是锁着的。（-ed形式作表语，表示状态） All the doors were locked by the guard. 所有的门都被卫兵锁上了。（被动语态，表示动作）
Peter the Great is buried here. 彼得大帝就埋葬在这里。（-ed形式作表语，表示状态
Peter the Great was buried here in 1725. 彼得大帝于1725年被埋葬在这里。（被动语态，表示动作）
2．同一动词的-ed形式与-ing形式作表语时的区别。
动词的-ed形式作表语，主要表示主语的心理感觉或所处的状态，含有被动的意思，而-ing形式作 表语多表示主语具有的特征，含有主动的意思。
They were frightened to hear the frightening sound. 他们听到那可怕的声音很害怕。 At the sight of the moving scene, all the people present were moved. 看到这么动人的情景，所有在场的人都感动了。
提示：
上述动词的-ed形式，有的（如pleased, tired, excited, disappointed等）已经变成形容词，可以被very, too等副词修饰。有的（如amused, puzzled, relaxed等）还不能被very, too修饰，只能被much修饰。
These problems are very puzzling. 这些问题很令人迷惑。
We are much puzzled by his failure to reply. 他不给我们回信使我们百思不得其解。 His speech was very moving. 他的演讲非常感人。
All the people present were moved to tears. 在场的所有人都被感动得流泪了。
B．动词的-ed形式作宾语补足语
当作宾语补足语的动词和前面的宾语之间是被动关系时，一般应用动词的-ed形式作宾语的补足语。
1．在感觉动词see, hear, feel, notice, watch, find后作宾语补足语。
I heard the Ninth Symphony played last night. 昨晚我听了第九交响乐的演奏。 We found all the rivers seriously polluted. 我们发现所有的河流都被严重污染了。
Yesterday I noticed a little girl caught stealing in the shop. 昨天我在商店里注意到一个小女孩偷东西被抓住了。
He felt his collar pulled by someone from behind. 他感觉到衣领被人从后面拉了一下。
2．在使役动词get, have, make, leave, keep等后作宾语补足语。
①动词的-ed形式作get的宾语补足语。
Doris got her bad tooth pulled out in the hospital. 多丽丝在医院把坏牙拔了。 I'll just get these dishes washed and then I'll come. 我得先把盘子洗了，然后就来。
比较：
动词get后也可接动词不定式或动词的-ing形式作宾语补足语，和宾语是主动关系。 I couldn誸 get the car to start this morning. 今早我无法把汽车发动起来。 He got his sister to help him with his clothes. 他让姐姐帮他洗衣服。
It is not hard to get him talking; the problem is stopping him! 让他说话不难，难的是说开了止不住他。
Can you really get that old clock going again 你真的能让那辆旧钟再走起来吗？ ②动词的-ed形式作make的宾语补足语。
He raised his voice in order to make himself heard. 他提高了嗓门为了使别人听清他的讲话。
You should make your views known to the public. 你应该让公众知道你的观点。 注意：
动词make后的宾语补足语可用不带to的动词不定式或动词的-ed形式，但不可用动词的-ing形式。
【误】Can you make the students understanding the text
【正】Can you make the students understand the text 你能让学生理解这篇课文吗？
【正】Can you make the text understood by the students 你能让学生理解这篇课文吗？
③动词的-ed形式作keep或leave的宾语补足语。
They all went home, leaving all the work undone. 所有的工作都没完成，他们就回家了。
The detective and his assistant kept themselves locked in the room all night. 侦探和他的助手把自己整夜反锁在房间里。
3．动词的-ed形式也可用在with（without）结构中，作介词的宾语补足语。
With everything well arranged, he left the office. 一切都安排妥善之后，他离开了办公室。
She has come back with her backpack filled with interesting picture-books. 她已经回来了，背包里塞满了有趣的图书。
Without any grain left in the house, the little girl had to go begging. 家里没有粮食，小女孩只好出去讨饭。
Without any more time given, we couldn't finish the task in three weeks. 如果不再给我们任何时间的话，我们三星期之内完成不了任务。
4．某些动词后（如want, need, prefer, would like等），作宾语补足语的不定式被动形式省略“to be”，就成了-ed形式作宾语补足语。
I would like this matter (to be) settled immediately. 我希望这事立即得到解决。 I'd prefer this book translated by my sister. 我情愿让我妹妹来翻译这本书。 We need the work (to be) finished by Saturday. 我们需要这项工作周六之前完成。 The peasants don't want good farmland (to be) built on. 农民们不想让好好的农田被用来建造房子。
C．动词的-ed形式作定语
动词的-ed形式作定语修饰名词分为前置和后置两类。
1．前置定语
单个的动词的-ed形式作定语一般放在被修饰的名词之前，作前置定语。
A watched pot never boils. 心急锅不开。
All the broken doors and windows have been repaired. 所有的坏门窗都修好了。 When we arrived, we each were given a printed question paper. 我们到达的时候，每人被发给了一份印制好的试卷。
提示：
如要表示强调，单个动词-ed形式也可作后置定语。
Money spent is more than money earned. 入不敷出。
2．后置定语
作后置定语的-ed形式一般都带有修饰语或其他成分，在语法上相当于一个定语从句。 We have read many novels written by this author. 我们读过这个作家写的许多小说。（= that are written by this author）
Half of the honoured guests invited to the reception were foreign ambassadors. 被邀请到招待会上的贵宾有一半都是外国大使。（= who had been invited to the reception） The meeting, attended by one thousand students, was a success. 这次会议获得很大的成功，共有一千名学生出席了。(= which was attended by one thousand students)
A woman, dressed like a lawyer, came in and took her seat as judge. 一个律师装扮的女人走了进来，并作为法官就座。(= who was dressed like a lawyer)
3．动词的-ed形式作定语和-ing形式作定语的区别
动词的-ed形式作定语表示动作已完成或和被动，而-ing形式作定语表示动作正在进行或和主动。
the risen sun 升起了的太阳
the rising sun 正在升起的太阳
boiled water 开水
boiling water 正沸腾的水
developed countries 发达国家
developing countries 发展中国家
fallen leaves 落叶
falling leaves 正在飘落的叶子
changed condition 改变了的情况
changing condition 变化着的情况
动词的-ed形式作状语和-ing形式作状语一样，也可以表示时间、原因、条件、让步、 方式或伴随情况等。
1．表示时间
动词的-ed形式作状语表示时间，相当于一个时间状语从句。
Seen from the tower, the city looks beautiful. 从塔上往下看，城市显得很美丽。（= When the city is seen from the tower...）
Shown the lab, we were taken to see the library. 带我们参观了实验室之后，又带我们参观了图书馆。（= After we had been shown the lab...）
Completely examined by the doctors, he went back to school right away. 经过医生彻底检查以后，他立刻回到了学校。(= After he was completely examined...) 提示：
有时动词的-ed形式前可加连词when或while来强调时间概念。
When asked why she was late for class again, she hung her head in shame. 当被问到为什么上课又迟到时，她羞愧地低下了头。
Once recovered, he went all out to do his work. 一恢复健康，他就全力以赴地干起了工作。
Once started, the clock will go half a month and keep good time.一旦给这钟上了发条，它就会走半个月，并且走得很准。
2. 表示原因
动词的-ed形式作状语表示原因，相当于一个原因状语从句。
Moved by the heroic deeds, the children couldn't help crying. 孩子们被英雄事迹感动，情不自禁地哭了起来。（= Since they were moved by the heroic deeds ...） Written in haste, her letter is very hard to read. 因为写得快，她的信很难阅读。（=As it was written in haste ...）
Excited by the new discovery, we decided to go out and celebrate. 我们因为新发现而激动万分，决定出去庆祝一下。(Because we were excited by...)
注意：
为了使-ed形式表示的条件、动词让步意义更加明显，我们可以加上适当的连词。 Even if invited,I won'tgo. 即使受到邀请，我也不去。
Though beaten by the opposite team,they did not lose heart. 虽然被对手打败，便他们并没有丧失信心。
Unless invited,he will not come back to the company. 除非被邀请，不然他不会回到公司来的。
3. 表示条件
动词的-ed形式作状语表示条件，相当于一个条件状语从句。
Heated, water changes into steam. 加热，水就能变成蒸汽。（= If water is heated...） Given more time, he would be able to do better. 假如多给一些时间，他会干得更出色。（= If he was given more time ...）
Compared with other professors, she was an excellent speaker. 与其他教授相比，她是一个优秀的演说家。
4. 表示让步
动词的-ed形式作状语表示让步，相当于一个thoughalthough引导的让步状语从句。 Exhausted by the running, they went on running after the robber. 尽管已经跑得筋疲力尽，他们还是继续追赶着那个强盗。（= Although they were exhausted by the running ...）
Laughed at by many people, he continued his research. 尽管被许多人嘲笑，他还是继续他的研究。（= Even if he was laughed by many people ...）
Questioned many times a day, Andrew kept silent over the murder. 尽管一天被盘问了多次，安德鲁仍然对那件谋杀案保持沉默。
提示：
有时动词的-ed形式作状语和动词的-ing形式的被动式作状语，并没有多大的区别，可以互换。
Suddenly seized with a high fever, he was unable to attend school. 他因突然发热不能来上学。
= Being suddenly seized with a high fever, he was unable to attend school. 他因突然发热不能来上学。
Brought up in the countryside, he found it hard to get used to town life. 因为
是在农村长大的，他感到很难适应城市生活。
= Having been brought up in the countryside, he found it hard to get used to town life. 因为是在农村长大的，他感到很难适应城市生活。
5．表示行为方式、伴随情况或补充说明。
动词的-ed形式作状语表示行为方式、伴随情况或补充说明时，通常位于句子的后面，相当于一个并列分句。
The teacher stood there, surrounded by the students. 老师站在那儿，被学生围住了。（= and he was surrounded by the students）
He went into the office, followed by some children. 他走进办公室，后面跟着一些孩子。(= and he was followed by some children)
They turned around and stood in the middle of the room, completely astonished. 他们转过身来，站在房间中央，完全惊呆了。
She accepted the gift, deeply moved. 她接受了礼物，深深地感动了。
注意：
动词的-ed形式在句中不能用作主语或宾语。
【误】Invited to the state banquet is a great honour.
【正】To be invited to the state banquet is a great honour. 被邀请出席国宴是极大的荣耀。
【误】I cannot stand laughed at.
【正】I cannot stand being laughed at. 我不能容忍被人嘲笑。
三、动词的-ed形式的逻辑主语
A．动词的-ed形式在句中作状语和表语时，它的逻辑主语一般来说就是句子的主语，-ed形式和主语之间是被动关系。
Locked up, he had no way to escape. 他被锁了起来，没有办法逃跑了。
Lost in thought, he almost ran into the car in front of him. 他陷入了沉思，几乎撞到了前面的汽车。
She became discouraged at the news. 听到这个消息，她泄气了。
Though it was 1000 a.m., the door of the shop remained locked. 尽管已经是上午10点了，商店的门仍然锁着。
B．当动词的-ed形式在句中作定语时，它的逻辑主语是被它修饰的名词，它和名词之间
是被动关系。
The first textbooks written for teaching English as a foreign language came out in the 16th century. 第一批编写出来作为英语教材的课本是16世纪出版的。
The computer center, opened last year, is very popular among the students in this school. 去年开办的计算机中心深受这所学校的学生喜爱。
A lighted candle lit up the cellar. 一支点燃的蜡烛照亮了地下室。
C．当动词的-ed形式在句中作宾语补语或主语补语时，它的逻辑主语是句子的主语或宾语，它们之间的关系是被动关系。
Vivien got her fingers trapped in the bicycle chain. 薇薇恩把手指卡在自行车链条里了。（trapped的逻辑主语是句子的宾语fingers）
The valuable vase was found stolen. 那个珍贵的花瓶发现被盗了。（stolen的逻辑主语是句子的主语vase）
We got home only to find the whole house turned upside down. Thieves obviously had broken in. 我们回到家发现整幢房子被翻得乱七八糟, 很明显小偷闯进来了。
D．动词的-ed形式有时可有其独立的逻辑主语，常用作状语（详见“第8章 独立主格结构”）。
Everything done, we went home. 一切事情都做完了，我们就回家了。
All our money run out, Henry had to find another job. 钱都用完了，亨利不得不再找一份工作。
He was lying on the grass, his hands crossed under his head. 他躺在草地上，头枕着双手。
All things considered, the planned trip will have to be called off. 考虑到所有的情况，原来计划好的旅行不得不取消。
E．动词的-ed形式作独立成分。
动词的-ed形式的一些固定词组也可在句中作独立成分，不受逻辑主语的限制。
Put frankly, I don't agree with what he said. 坦白地说，我不同意他所说的。 Given the general state of his health, it may take him a while to recover from the operation. 考虑到他一般的身体状况，手术后的恢复可能需要一段时间。
D．动词的-ed形式作状语
独立主格结构 第八章 独立主格结构
非谓语动词作状语时，它的逻辑主语应该是句子的主语。但有时非谓语动词带有自己的主语，从而在结构上与主语不发生关系，我们称之为独立主格结构（Absolute Construction）。其实，所谓“独立主格结构”也并非真正独立，它还是一种从属的结构。
一、 非谓语动词独立主格结构
在独立主格结构中，非谓语动词和它前面的名词或代词存在着逻辑上的主谓关系。 Such an able man to help you，you will surely succeed sooner or later. 有这么能干的人来帮你,你迟早一定会成功的。（such an able man和to help you之间存在着主谓关系）
= Since such an able man will help you, you will surely succeed sooner or later. He seating himself at the desk, his mother began to tell him a story.
他在书桌旁坐好后，他母亲开始给他讲故事。（seating himself at the desk拥有了自己的逻辑主语he，注意是“主格”）
= When he seated himself at the desk, his mother began to tell him a story. The key to the bike lost, he had to walk to school.
由于丢了自行车钥匙，他只好步行去学校。（lost的逻辑主语是the key，lost也可以用完成式having been lost）
= Because the key to the bike had been lost, he had to walk to school.
A． 不定式“独立主格结构”
在“逻辑主语+动词不定式”结构中，动词不定式和它前面的名词或代词存在着逻辑上的主谓关系。这种结构也可用一个从句或并列分句来表达。
1．动词不定式用主动的形式
在独立主格结构中，动词不定式和它前面的名词或代词存在着逻辑上的主谓关系。
His mother to come tonight，he is busy preparing the dinner.
他母亲今晚要来,他正在忙着准备饭菜。（= As his mother is to come tonight, he is busy preparing the dinner.）
——will you go to the comcert tonight 你今晚去听音乐会吗？
——sorry.So many exerise-books to check,I rially can't afford any time. 对不起，有这多的作业要批，我真的抽不出时间。
（＝Because I shall check so many exercise-books tonight,I really can't afford any time.）
The four of us agreed on a division of labour,each to translate a quarter of the book.
我们四人同意分工干，每人翻译全书的四分之一。
（＝The four of us agreed on a division of labour and each is to translate a quarter of the book.）
Many trees,flowers,and grass to be planted,our newly-built school will look even more beautiful. 种上许多的树，花和草后，我们新建的学校将看上去更美。(=If many trees,flowers,and grass are planted,our newly-built school will look even more beautiful.)
B．-ing形式“独立主格结构”
动词的-ing形式作状语时，其逻辑主语一般应与句子的主语保持一致。
Being ill, he went home.
由于生病,他回家了。（= As he was very ill, he went home.）
Seating himself at the desk, he began to read a magazine.
在课桌旁坐好后，他开始看杂志。（= When he had seated himself at the desk, he began to read a magazine.）
1．表示时间的-ing形式作“独立主格结构”
Everyone being ready, the teacher began his class.
每个人都准备好后，老师开始上课。（相当于一个时间状语从句When everyone was ready)
The chairman began the meeting , everyone being seated.
每个人坐好后，主席开始开会。（相当于一个时间状语从句after everyone was seated）
2．表示原因的-ing形式作“独立主格结构”
The boy leading the way, we had no trouble finding the strange cave.由那个男孩带路，我们没有困难就找到了那奇怪的洞。（相当于一个原因状语从句Because the boy led the way）
Many eyes watching him, he felt a bit nervous.许多眼睛看着他，他感到有点儿紧张。（相当于一个原因状语从句As many eyes were watching him）
必背：
含有being的独立主格结构。
It being National Day today，the streets are very crowded.今天是国庆节,街上很拥挤。
= As it is National Day today, the streets are very crowded.
There being no further business to discuss, we all went home.没有别的事可讨论，我们都回家了。
= As there was no further business to discuss, we all went home.
3．表示条件的-ing形式作“独立主格结构”
Time permitting, we will have a picnic next week.
时间允许的话，我们下星期将进行一次野炊。（相当于一个条件状语从句If time permits)
My health allowing, I will work far into the night.
我的健康许可的话，我愿工作到深夜。（相当于一个条件状语从句If my health allows）
4．表示方式的-ing形式作“独立主格结构”
The students are walking in the school happily, each wearing a card in front of his chest.
学生们快乐地在学校里走着，每个人胸前都带着一张卡。（相当于一个并列分句and each wears a card in front of his chest）
The boy lay on the grass, his eyes looking at the sky.
男孩躺在草地上，眼睛看着天空。（相当于一个并列分句and his eyes were looking at the sky）
C．-ed形式“独立主格结构”
与逻辑主语+动词的-ing形式一样，如果-ed形式的逻辑主语和句子的主语不一致的话，就需要用-ed形式的独立主格结构。
The book written in simple English, English beginners were able to read it. 该书是用简单英语写的，英语初学者也能看懂。
= As the book was written in simple English，English beginners were able to read it.
The workers worked still harder, their living conditions greatly improved. 由于工人们的生活条件大大提高，他们工作得更起劲了。
= As their living conditions were greatly improved, the workers worked still harder. He was listening attentively in class, his eyes fixed on the blackboard. 他上课专心听讲，眼睛紧盯着黑板。
= He was listening attentively in class, and his eyes were fixed on the blackboard. The task completed,he had two months' leave.
任务完成以后，他休了两个月的假。（=When the task had been completed,he had two months' leave.）
比较：
动词不定式表示动作没有发生或即将发生，动词-ed形式表示动作已经结束，动词-ing形式往往表示动作正在进行。
The manager looks worried，many things to settle.经理看上去很着急,有这么多的事情要处理。（事情还没有处理，而且是由经理本人来处理，用不定式to settle）
The manager looks relaxed, many things settled.许多事情已经处理好了，经理看上去很轻松。（事情已经处理好了，用动词-ed形式settled表示动作已经结束）
The food being cooked, the boy was watching TV.小孩一边做饭，一边看电视。（两个动作同时进行）
The food cooked, the boy went to bed. 饭做好了，小孩去睡了。（两个动作有先后，饭已做好，小孩才去睡觉的）
一、 动词独立主格结构
“逻辑主语+being+其他”是独立主格结构中的“逻辑主语+动词-ing形式”的一种形式。在这种结构中，being往往可以被省去，这种省去being的结构，称之为无动词“独立主格结构”。
A．逻辑主语+名词
Ten students entered for the competition, the youngest a boy of 12.
十个学生报名参加了这次竞赛，年纪最小的是个12岁的男孩。（the youngest和a boy of 12之间省去了being）
注意：
独立主格结构中的being在下列两种情况下一般不能省略，一是在“There being +名词”结构中，二是在逻辑主语是代词的情况下。
There being no bus, we had to walk home.由于没有公共汽车，我们只好走回家。 It being Sunday, all the offices are closed. 因为是星期日，所有办公室都关门。
B．逻辑主语+形容词
He turned to me, his eyes sleepy.
他睡眼惺忪地转向我。（his eyes和sleepy之间省去了being）
= He turned to me, and his eyes were sleepy.
He stood there, his mouth wide open.
他站在那里，嘴张得大大的。（his mouth和wide open之间省去了being）
= He stood there, and his mouth was wide open.
C．逻辑主语+副词
School over, we all went home.
放学了，我们都回家了。（school和over之间省去了being）
= School was over, and we all went home.
He sat at his desk, his shoes off.
他坐在课桌旁，没穿鞋子。（his shoes和off之间省去了being）
= He sat at his desk and his shoes were off.
D．逻辑主语+介词短语
He is standing in front of the blackboard, his back towards us.
他站在黑板面前，背对着我们。
= He was standing in front of the blackboard, and his back was towards us. The new teacher came in, a smile on her face.
新老师面带微笑走了进来。
= The new teacher came in and she had a smile on her face.
The teacher came into the classroom，a rule in his hand.
老师走进教室，手里拿着一把直尺。
= The teacher came in and a ruler was in his hand.
提示：
在“逻辑主语+介词短语”构成的独立主格结构里，如果名词用单数，可以不用冠词，同时介词短语里的限定词也可省略。
The music teacher stood at the door, violin in hand.
音乐老师站在门口,手里拿着一把小提琴。（= The music teacher stood at the door, a violin in his hand.）
二、 withwithout 引导的独立主格结构
介词withwithout +宾语+宾语的补足语可以构成独立主格结构，上面讨论过的独立主格结构的几种情况在此结构中都能体现。
A．with+名词代词+形容词
He doesn誸like to sleep with the windows open.
他不喜欢开着窗子睡觉。
= He doesn誸like to sleep when the windows are open.
He stood in the rain, with his clothes wet.
他站在雨中，衣服湿透了。
= He stood in the rain, and his clothes were wet.
注意：
在“with+名词代词+形容词”构成的独立主格结构中，也可用已形容词化的-ing形式或-ed形式。
With his son so disappointing，the old man felt unhappy.
由于儿子如此令人失望,老人感到很不快乐。
With his father well-known, the boy didn誸want to study.
父亲如此出名，儿子不想读书。
B．with+名词代词+副词
Our school looks even more beautiful with all the lights on. 所有的灯都打开时，我们的学校看上去更美。
= Our school looks even more beautiful ifwhen all the lights are on. The boy was walking, with his father ahead.
父亲在前，小孩在后走着。
= The boy was walking and his father was ahead.
C．with+名词代词+介词短语
He stood at the door, with a computer in his hand.或
He stood at the door, computer in hand.
他站在门口，手里拿着一部电脑。
= He stood at the door, and a computer was in his hand.
Vincent sat at the desk, with a pen in his mouth.或
Vincent sat at the desk, pen in mouth.
文森特坐在课桌前，嘴里衔着一支笔。
= Vincent sat at the desk, and he had a pen in his mouth.
D．with+名词代词+动词的-ed形式
With his homework done, Peter went out to play.
作业做好了，彼得出去玩了。
= When his homework was done, Peter went out to play.
With the signal given, the train started.
信号发出了，火车开始起动了。
= After the signal was given, the train started.
I wouldn誸dare go home without the job finished.
工作还没完成，我不敢回家。
= I wouldn誸dare go home because the job was not finished. E．with+名词代词+动词的-ing形式
The man felt very happy with so many children sitting around him.
有这么多的孩子坐在他周围，那男子感到很高兴。
= The man felt very happy when he found so many children sitting around him. The girl hid her box without anyone knowing where it was.
小女孩把盒子藏了起来，没有人知道它在哪里。
= The girl hid her box and no one knew where it was.
Without anyone noticing, he slipped through the window.他趁没人注意的时候，从窗口溜走了。
= When no one was noticing, he slipped through the window.
F．with+名词代词+动词不定式
The little boy looks sad, with so much homework to do.
有这么多的家庭作业要做，小男孩看上去很不开心。
= The little boy looks sad because he has so much homework to do.
The kid feels excited with so many places of interest to visit.
有这么多的名胜可参观，小孩很激动。
The kid feels excited as there are so many places of interest to visit. 提示：
在withwithout的复合结构中，多数情况下with能省略，但without不能省略。 Without a word more spoken, she left the meeting room.
她没再四 、 独立主格结构的句法功能
独立主格结构在句中除了能充当原因状语、时间状语、条件状语和伴随状语外，还能作定语。在形式上，“独立主格结构”可位于句首、句中或句尾，并通常用逗号与主句隔开。
A．作状语
独立主格结构作状语，其功能相当于一个状语从句或并列分句。
1．表示时间
Night coming on, we put ourselves up in a small hotel.夜幕降临，我们在一家小旅馆住了下来。
（= When night came on, we put ourselves up in a small hotel.）
All the guests seated, they began their dinner.
所有的客人就坐后，他们才开始吃饭。
（= When all the guests were seated, they began their dinner.）
With everything she needed bought, Grace took a taxi home.
所需要的都买好后，格雷斯打的回家了。
（After everything she needed was bought, Grace took a taxi home.）
2．表示原因
With a lot of difficult problems to settle, the newly-elected president is having a hard time.
有许多难题要解决，新当选的总统日子不好过。
（= As he has a lot of difficult problems to settle, the newly-elected president is having a hard time.）
There being no means of transportation, he had to walk home at midnight. 由于在半夜没有交通工具了，他只好步行回家。
(= As there was no means of transportation, he had to walk home at midnight.)
3．表示条件
Weather permitting, we will hold our yearly sports meeting next week. 如果天气允许的话，我们下星期将举行每年一次的运动会。
（= If weather permits，we will hold our yearly sports meeting next week.） All the work done, you can have a rest.
所有工作做好后，你可以休息。
（=As long as all the work is done, you can have a rest.）
Everything taken into consideration, the plan seems to be more practical.如果从各方面考虑，你的计划似乎更实际些。
（= If everything is taken into consideration, the plan seems to be more practical.）
提示：
表示时间、原因、条件的独立主格结构一般放在句首，并且不能保留连词。
【误】When class being over, the students left their classroom.
【正】Class (being) over, the students left their classroom.下课了，学生都离开了教室。
【误】The moon appearing and they continued their way.
【正】The moon appearing, they continued their way.月亮出来了，他们继续赶路。
4．表示伴随情况或补充说明
The strange man was walking down the street, with a stick in his hand. 那个奇怪的男人在街上走着,手里拿着根手杖。
（= The strange man was walking down the street, and he carried a stick in his hand.）
The murderer was brought in, with his hands tied behind his back.
杀人犯被带了进来，手被捆在背后。
（=The murderer was brought in, and his hands were tied behind his back.） Two hundred people died in the accident, many of them children.
有两百人在事故中丧生，其中许多是儿童。
（Two hundred people died in the accident and many of them were children.）
B．作定语
独立主格结构作定语，其功能相当于一个定语从句。
He is the person with a lot of questions to be settled. (with的复合结构作定语,修饰the student)
他就是有许多问题要解决的那个人。
= He is the person who has a lot of questions to be settled.
You can use a large plastic bottle with its top cut off. (with的复合结构作定语,修饰bottle)
你可以使用一个颈被砍掉的大塑料瓶。
= You can use a large plastic bottle whose top was cut off.
He was walking along the road without any street lights on its both sides. 他走在一条两边没有路灯的马路上。(without的复合结构作定语,修饰the road )
= He was walking along the road that didn誸have any street lights on its both sides.
提示：
在这里我们讨论了很多用连词连接的两个句子改为独立主格结构的情况。需要提示的是，不是所有用连词的地方都可以改为独立主格结构。
If you stand on the top of the mountain，the park looks more beautiful.
如果你站在山顶上,公园看上去更美。（不要改为独立主格结构）
If you check your test paper carefully, some mistakes can be avoided. 如果你仔细检查试卷的话，有些错误是可以避免的。（不要改为独立主格结构） 说什么话就离开了会议室。（without不能省略）
名词性从句 第九章 名词性从句
由一个主句和一个或一个以上的从句构成的句子叫复合句。名词性从句在复合句中起名词的作用，它包括主语从句、宾语从句、表语从句、同位语从句四大类，在句中分别用作主语、宾语、表语和同位语。
一、 一 、引导名词性从句的关联词
A．that
连词that本身没有意义，在从句中不担任任何句子成分，在宾语从句中有时可省略。 I hear (that) he has joined the football club. 我听说他已经加入了足球俱乐部。 That light travels in straight line is known to all. 众所周知，光是以直线传播的。
It so happens that I know the man. 碰巧我认识那个。
Is it certain that they will win 他们一定会赢吗
B．whether和if
连词whether和if本身有意义（解释是否），在从句中不可省略。
1．whether可以连接所有的名词性从句，而if只能引导宾语从句。
I didn't know whether he would attend the concert. 我并不知道他是否参加音乐会。（宾语从句，可用if代替whether）
The question is whether it s worth trying. 问题是值不值得试一试。（表语从句，不可用if代替whether）
Whether she comes or not makes no difference. 她来不来都没有关系。（主语从句，
不可用if代替whether）
He must answer the question whether he agrees to it or not. 他必须回答他是否同意此事这样一个问题。（同位语从句，不可用if代替whether）
2．whether引导的宾语从句可作介的宾语，而if则不能。
It all depends on whether they will support us. 这完全取决于他们是否支持我们。(不用if)
Ryan was worrying about whether he had hurt her feelings. 瑞恩担心是否伤害了她的感情。
3．if既可引导语从句，也可引导宾语从句。如果用if会引起歧义，应避免使用if，而用whether。
Please let me know if you want to join us. 请告诉我你是否想加入我们。（if引导的从句可被看成是宾语从句，if表示是否）
Please let me know if you want to join us. 如果你想加入我们的话，请告诉我一声。（if引导的从句可被看成是条件状语从句，if表示如果）
Please let me know whether you want t join us. 请告诉我你是否想加入我们。（为避免引起歧义，可用whether表示是否）
C．who, whom, whose, what, which
连接代词who, whom, whose, what, which等在从句中既起连接作用，同时又担当主语、宾语、定语、表语等成分。
No one knows who he was waiting for. 没人知道他当时在等谁。
We are worrying about what we should do next. 我们正在为下一步该怎么办而烦恼。 Tell me whos house it is. 告诉我这是谁的家。
Let me know which train you will be arriving on. 告诉我你将乘哪列火车到达。
D．where, when, how, why
连接副词where, when, how, why等在从句中既是连接词，又作状语。
I don't know where we are going to have the meeting.我不知道我们将在哪儿开会。 She always thinks of how shecan work well. 她总是在想怎样能把工作做好。
What I am anxious to know is when we can visit the museum. 我急于知道我们什么时候能参观博物馆。
比较：
when引导的时间状语从句和名词性从句中的不同时态。
Please lt me know when you arrive. 你到的时候，请告诉我一声。（when引导的是时间状语从句，从句中用一般现在时来表示将来。）
Please let me know when you will arrive. 请告诉我你什么时候到。（when引导的是宾语从句，从句中用一般将来时。）
E．whoever, whomever, whatever, whichever, whosever
连接代词whoever = anyone who任何人, 无论谁；whatever =anything that凡是...，无论什么；whichever = anything that无论那一个, 任何一个；whomever = anyone whom （whoever的宾格形式）。
Whoever comes to the club is welcome. 不论谁来参加这个俱乐部都欢迎。
Whatever is worth doing at all is worth doing well.凡是值得做的就值得做好。 They ate whatever they could find o the deserted island. 他们在荒岛找到什么就吃什么。
You may do whatever you will. 你可做任何你想做的事。
I'll take whichever book interests me.我愿买任何让我感兴趣的书。
Whosever book is overdue will be fined. 不管谁的书过期未还都要被罚款。 比较：
连接代词whoever在宾语从句中作主语，whomever作宾语从句中宾语。
You may offer he book to whoever wants it. 你可把这本书给任何想要的人。（此句中不能使用whomever，因为whoever在宾语从句中作wants it的主语）
You may offer the book to whomever you like.你可把这本书给任何你喜欢的人。（whomever在宾语从句中作you like的宾语）
一、 表语从句
表语从句放在连系动词之后，充当复合句中的表语。
A．可接表语从句的连系动词
可接表语从句的连系动词有be, look, seem, sound, appear等。
China is no longer what she used to be. 今日的中国不再是过去的中国了。
The question remains whether they will be able to help us. 问题还是他们能否帮我们。
Itappears that he has a taste for music.看来他对音乐有一定的鉴赏力.
At that time, it seemed as if I couldn' t think of the right word anyhow. 当时，我似乎怎么也想不出一个恰当的字眼来。
B．as, as ifthough引导的表语从句
He looked just as he had looked ten years before. 他看起来还与十年前一样。 It sounds as ifsomeone is knocking at the door. 听起来好像有人在敲门。
C．because, why引导的表语从句
I think it is because you are talking too much. 我想这是因为你话说得太多。 That's because he didn't understand me. 那是因为他没有理解我。（That's because
三 同位语从句
同位语从句用于对前面的名词作进一步解释，说明名词的具体内容。同位语从句一般由that引导，但也可以由whether 以及连接代词和连接副词引导。
A．同位语从句一般跟在名词fact, hope, idea, news, doubt, suggestion, information, opinion, decision, discovery, truth, promise, statement, problem, rule等的面。 They were all very much worried over the fact that you were sick. 对你生病这件事，他们都很焦虑。
Where did you get the idea that I could not come 你在哪儿听说我不能来？ I have no idea whether he'll come or not. 我不知道他是否来。
We haven't yet settled the question where we are going t spend our summer vacation. 到哪儿去度暑假，这个问题我们还没有决定。
It is a question how he did it. 那是一个他如何做了此事的问题。
There is no doubt that we will win. 毫无疑问我们会赢的。
注意：
当含有同位语从句的主句谓语部分过短时，可以把谓语动词提前，使同位语从句与名词隔开，以避免头重脚轻的现象。
Word came that Mr President would come and inspect ourschool himself. 有消息说总统先生将亲自来视察我们学校。
B．使用虚拟语气的同位语从句
在一些表示建议、命令、要求的名词后的同位语从句中，谓语动词用should+动词原形表示，should可省略。
This is our only request that this (hould) be settled as soon as possible. 尽快解决这个问题，这是我们唯一的请求。
He made the suggestion that we go by train. 他建议我们坐火车去。
第10章 定语从句 第10章 定语从句
在复合句中充当定语的从句叫定语从句。定语从句的作用相当于形容词，用来修饰主句中的某一名词或代词或整个主句，所以，也称作形容词性从句。被定语从句修饰的词叫先行词，定语从句一般紧跟在它所修饰的先行词之后。在先行词和定语从句之间起连接作用的词叫关系词。关系词有关系代词和关系副词两种。
一、关系代词引导的定语从句
引导定语从句的关系代词主要有who, whom, whose, which, that等。它们分别代替前面的先行词，并在定语从句中作主语、宾语或定语。
A．who
指人，在定语从句中作主语。
What was the name of the man who lent you the money
借钱给你的那人叫什么名字？（定语从句修饰先行词the man）
He who laughs lst laughs best.
谁笑到最后谁笑得最好。（定语从句修饰先行词he）
The chairman of the meeting, who spoke first, sat on my right.
会议主席坐在我右边，他先发言。（定语从句修饰先行词the chairman）
B．whom
指人，在定语从句中做宾语。在口语或非正式文体中，whom可省略或可用who来代替，但在介词后面以及在非限制性定语从句中只能用whom。
There are some people (whomwho)we like and others (whomwho) we dislike.
有些人我们是喜欢的，有些人则是我们讨厌的。（定语从句分别修饰先行词people, others）
The people whomwho I work with are all friendly.
和我一起工作的人都很友好。（定语从句修饰先行词the people）
Mr Carter, whom I spoke to on the phone last night, is very interested in or plan. 昨晚我在电话里和卡特先生交谈过，他对我们的计划很感兴趣。（非限制性定语从句中不能用who代替whom）
Two men, neither of whom I had ever seen before, came into my office. 两个人来到我的办公室，我以前从未见过他们。（在介词后面不用who）
C．whose
通常指人，也可指物，在定语从句中做定语，后面要紧跟被修饰的名词。
There are some people whose faces you can nevr forget.
有些人，他们的脸你永远难以忘怀。（定语从句修饰先行词people）
I saw some trees whose leaves were black because of the polluted air. 我看见一些树的树叶由于空气污染而发黑。（定语从句修饰行词trees）
D．which
1．指物，在定语从句中做主语或宾语。做宾语时常可省略。
English is a language which is easy to learn.
英语是一门容易学的语言。（which在定语从句中作主语，不能省略）
This is a folk song which is now very popular.
这是目前非常流行的一首民谣（which在定语从句中作主语，不能省略）
The river which flows through London is the Thames.
流经伦敦的河叫泰晤士河。（which在定语从句中作主语，不能省略）
The children like cookies (which) my wife makes.
孩子们喜欢我夫人做的饼干。(关系代词which作makes的宾语，可以省略)
2．which引导的非限制性定语从句可以修饰前面的整个主句，相当于and this。 Jim passedhis driving test, which surprised everybody.
吉姆通过了驾驶考试，这使大家都感到惊讶。（定语从句修饰的是整个主句，而不是the driving test）
Sheila couldn't come to the party, which was a pity.
希拉不能来参加聚会，真遗憾。（定语从句修饰的是整个主句，而不是the party）
3．which在非限制性定语从句中有时也可以作定语。
John stayed here for a week, dring which time we visited the West Lake together. 约翰在这里呆了一星期，在此期间我们一起游了西湖。
It might snow this weekend, in which case we won't go to Beijing.
周末可能下雪，在这种情况下，我们就不去北京了。
E．that
指人时，相当于who或whom；指物时，相当于which。在定语从句中作主语或宾语（做宾语时常可省略）。
He is the man that lives next door.
他就是住在隔壁的那个人。（定语从句修饰先行词the man，作主语）
I don't like stories that have unhappy endings.
我不喜欢结尾悲伤的故事。（定语从句修饰先行词stories，作主语）
The dress (that) Ann boughtdoesn't fit her very well.
安买的衣服不太合身。（定语从句修饰先行词the dress，that作宾语可省略） Is there anything (that) I can do for you
有我能为你效劳的事吗？（定语从句修饰先行词anything，that作宾语，可省略） 提示：
在口语中，that有时还可以作关系副词，相当于when或介词+which结构。
We left the day (that) he arrived.他来的那一天，我们就走了。（that替when） He doesn't see things the way (that) we see them.他看问题的方法和我们不一样。（that代替in which）
Imagine the speed (that) he drives his car!很难想象，他开车的速度那么快！（that代替at which）
F．其他关系代词
as和but也可作关系代词，引导定语从句。
1．as
as可以在限制性定语从句和非限制性定语从句中作主语或宾语。
①在限制性定语从句中，as可跟在由suc, so, the same修饰的先行词之后。 Such men as heard him were deeply moved.
听过他说话的人，都会深受感动。（as在定语从句中作heard的主语）
I've never heard such stories as he tells.
我从未听过像他讲的这样的故事。（as在定语从句中作tell的宾语）
He lifted so heavy a stone as no one else can lift.
他搬起别人都搬不起的大石头。（as在定语从句中lift的宾语）
比较：
在the same
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