it用法总结

it的用法总结

it 用法虽不是高考的热点,但近几年全国各省市高考试题经常出现对it用法的考察。It的用法之多值得我们在学习过程中高度关注。同时我们不能疏忽it与其他语言知识点相结合进行命题的趋势。下面就帮你系统归纳其基本用法,并通过高考试题进行巩固,让你轻松掌握it的用法。

一、 it 的基本用法:

(1)用作人称代词,代替前文提到过的事物。

My mother bought me a new chothes.It was very beautiful.

(2)用以代替提示代词this, that。

—what’s this in Eenglish?

—It is a knife.

(3)起指示代词的作用,指一个不明身份的人或事物。

—who is knocking at the door?

—it’s me.

(4)指环境情况等。

it was very noisy (quiet) at the very moment.

(5)指时间、季节等。

—what time is it now?

—it’s eight o’clock.

It often rains in summer here.

(6)指距离。

It is a long way to the school.

(7)作形式主语。

It is not easy to finish the work in two days.

It is no use crying over spilt milk.

It is a pity that you didn’t read the book.

(8)作形式宾语。

I found it very hard to fininsh homework before eight.

(9)用于强调结构。

it is∕was + 被强调部分 + that/who + 句子的其他部分

it is not until +被强调的部分+ that + 句子的其他部分,译为“直到…才”

It was xiaoming whom/ that I met in the street last night.

It was not until midnight that he went back home after the experiment.

二、含有 it 的句型:

(1)It is time (for sb.) to do sth.

It is (high) time that sb. did sth.(虚拟语气)

(2)It is + 形容词(+of / for sb.)+ to do sth.

通常用 of的词有brave、clever、careful、hopeless、kind、good、naughty、nice、silly、stupid、foolish、wise等。

It is brave of him to fight against the thife.

(3)It is + 形容词 + that + sb. + (should) do sth.(虚拟语气)

it is important that we should pay close attention to grain.

it is natural that he(should)say so.

(4)It is no use/ good + doing sth.

It is no use arguing with him because he will never accept any suggestions

(5)It is∕was + 被强调部分 + that/who + 句子的其他部分

It is not until +被强调的部分+ that + 句子的其他部分,译为“直到…才”

It was in the street that I met her father.

It was not until she took off her dark glasses that I realized she was a film star.

(6)it is said/reported/announced/ (well) known … that

(7)it is/was + 时间 + since … 从……已多久了。

It is three years since i met him in beijing.

(8)it is + 时间 + before …

这个句型和上面句型中时间都是时间段,如long、years、months、weeks、five days、three hours、twenty minutes等。不过主句的时态多用一般将来时或一般过去时。

it will be several years before we meet again.

我们要过好几年才能再见面。

it was not long before they set out for the front.

不久他们就出发去了前线。

(9)it is /was/will be the first/second/third … time that …

it is the first time that i have been here.

it was the second time that he had seen the film.

(10)it is up to sb. to do sth … 应由某人做某事。

it is up to you to decide whether we start or not.

三、陷阱题分析

1. I dislike _______ when others laugh at me in public or think poorly of me behind.

a. that b. those c. it d. them 【陷阱】几个干扰项均有可能误选。 【分析】最佳答案是c,因为在通常情况下,like 是及物动词,其后应有宾语(句中 it 即为其宾语)。句中的 when 从句不是宾语从句,而是时间状语从句,其中的 when 的意思是“当……的时候”。其实,也有的词典将 i don’t like it when (if) … 作为一个句型来处理。能这样用的动词不多,主要的有enjoy, like, dislike, love, hate, prefer, appreciate等表示喜好的动词。

she won’t like it if you arrive late. 她不喜欢你迟到。

he hates it when people use his bike. 他讨厌别人用他的自行车。

2. Everyone knows that _______ is dangerous to play with fire, but _______ is difficult is to prevent children from playing with fire.

a. it, it b. what, what

c. it, what d. what, it

【陷阱】很容易误选a,两空均考查形式主语。

【分析】最佳答案是c第一空填形式主语,真正的主语是其后的不定式 to play with fire。第二空填 what,what is difficult 是主语从句,注意 what is difficult 后的谓语动词 is。

3.Excuse me, I want to have my watch fixed, but i can’t find a repair shop.” “i know ________ nearby. come on, i’ll show you.”

a. one b. it

c. some d. that

【陷阱】容易误选b。

【分析】最佳答案是a。it 和 one 的区别可简单地概括为:it = the + 名词,one = a + 名词。如:

I have two pens, and i can lend one to you. 我有两本支钢笔,我可以借一支。(one = a pen) I have a pen, and i can lend it to you. 我有一本钢笔,我可以把它借给你。(it = the pen)

4. Will you see to _______ that my children are taken good care of while I am away? a. it b. me

c. yourself d. them

【陷阱】几个干扰项均有可能误选。

【分析】最佳答案是a。it 为形式宾语,真正的宾语是空格后that引导的宾语从句。see to 意为“负责”、“注意”,其中的 to 为介词,不宜直接跟that引导的宾语从句,遇此情况可借助代词 it。

通过对知识点的系统归纳和对经典例题的解析,相信你对it的用法有了更清晰的认识,在解题时更加得心应手。为了更全面更好的掌握其用法,希望同学们学会举一反三,灵活运用。

 

第二篇:It用法总结

It用法总结

it的用法

1. it作代词

(1)在答语中替代this或that。如:

-What's this? -It's a frog.

(2)指已提到过的物体。如:I've lost it on my way home.

(3)指情形、行为等。如: Jack is ill. Have you heard about it?

(4)指人(不明的人或婴儿)。如: Who is it?

(5)指天气、温度、时间、距离等。如: It is raining. It's very hot. It's five o'clock.

2.引导词it

(1)作形式主语。如:

It is difficult to understand the passage.

It is no use trying.

It is said that the meeting will be put off.

4)It+take+(sb.) some time / some money+to do sth. 例如:

It will take them more than ten years to complete the Three Gorges Dam.

5)It+be+said / reported / told等+that-clause. 例如:

It is said that he will leave for Beijing tomorrow.

6)It+vt.+sb.+that-clause. 例如:

It worried her a bit that her hair was turning grey.

[原题再现] ①________is a fact that English is being accepted as an international language.

A. There B. This C. That D. It

② In fact________ is a hard job for the police to keep order in an important football match.

A. this B. that C. there D. it

答案: ① D ② D

(2)作形式宾语。如:

He feels it his duty to help others.

他们要使公众明白他们做的是一项重要的而且必要的工作.

1) S.+vt.+it+adj. / n.+(for sb.) to do sth. 例如:

Do you think it possible for them to send an engineer there?

2) S.+vt.+it+adj. / n.+doing sth. 例如:

You must find it exciting working here.

3) S.+vt.+it+adj. / n.+that-clause. 例如:

I think it a pity that you didn't try harder.

[原题再现]

Don't ________that all those who get good grades in the entrance examination will prove to be most successful.

A. take as granted B. take this for granted

C. take that for granted D. take it for granted

答案: D

(3)构成强调句。如:

It was in the street that I saw Li Ping this morning.

今天早晨,就是在街上我看见李明。

[原题再现] ________was in 1979________I graduated from university.

A. That; that B. It; that C. That; when D. It; when

答案: B

(4)构成特殊句式。如: It seems as if we should finish it tomorrow.

阶段训练

(1)There is a photo on the wall._____the photo of Lei Feng.

A. It B. Its C. It's D. He(高考,1980)

(2) Is_necessary to tell his father everything?

A. it B. that C. what D. he (MET1987)

(3) Is_possible to fly to the moon in a spaceship?

A. now B. man C. that D. it

(4) I consider____ my duty to help you.

A. it B. this C. that D. its

(5) Three hundred thousand dollars___found because the thief dropped __ while getting away.

A. was; it B. is; it C. are; them D. were; them

阶段训练

I.I like_in the autumn when the weather is clear and bright.(20xx全国I)

A. this B. that C. it D. one

2. -Do you like___ here?

-Oh,yes. The air,the weather,the way of life. Everything is so nice.(20xx全国II)

A. this B. these C. that D. it

3.The Parkers bought a new house but____ will need a lot of work before they can move in.

A. they B. it C. one D. which

4. I hate___ when people talk with their mouths full.

A. it B. that C. these D. them

5.Joan had often heard____ said that Marley had no money.

A. it B. this C. that D. one

6. It was at four o'clock in the afternoon____ he and his grandpa reached the museum in Guanghan.

A. while B. that C. when D. as

三、it, one和that作替代词的用法及区别

it, one和that虽然都可以用来替代前面所提到的一个单数名词,以避免重复,但在具体用法上却有不同。简述如下:

1. it代替前面提到的同一事物,该事物既可以是可数名词也可以是不可数名词。

[原题再现] The news that they failed their driving test discouraged him, ________?

A. did they B. didn't they C. did it D. didn't it

答案: D

2. one代替前面提到的同类事物中的一个。该事物只能是可数名词,前面可以有冠词,也可以被this、that或形容词修饰,其后也可以有定语。

[原题再现] -Why don't we have a little break? -Didn't we just have________?

A. it B. that C. one D. this

答案: C

3. that代替前面提到的同类事物中特指的一个。该事物既可以是可数名词也可以是不可数名词,要有后置定

语,但不可以有前置修饰语。

[原题再现] Few pleasures can equal ________ of a cool drink on a hot day.

A. some B. any C. that D. those

答案: C

阶段训练答案1:(1)C (2)A (3)D (4)A.(5)A 答案2:CDBAAB

巩固篇

1.Carol said the work would be done by October, _____ personally I doubt very much.

A. it B. that C. when D. which

2.-Why don't we take a little break? -Didn't we just have____?

A. it B. one C. that D. this

3.I hate_____ when people talk with their mouths full.

A. it B. that C. these D. them

4.______is well-known to all that Hong Kong has returned to China.

A. Which B. It C. That D. As

5.-______has just come in? -It's Mr. Green, our headmaster.

A. Who is that B. Who that is C. Who's it that D. Who it is

6._____that they may be invited.

A. They wished B. It is hoped C. That is expected D. What they hope

7.The manager didn't feel like _____ whether he would attend the meeting the next morning.

A. making it clear B. make that clear C. to make it clear D. making this clearing

8._____I was free that evening.

A. It happened to B. It happened that C. That happened D. It was happened that

9.He said, "_____a long way to school. _____ a long way to go before we arrive."

A. It is; It is B. There is; It is C. It is; There is D. There is; There is

10.Tom's mother kept telling him that he should work hard, but ______ didn't help.

A. he B. which C. she D. it

11.They say that _____doesn't make any difference my being there.

A. there B. that C. it D. he

12.I hope there are enough chairs for each guest to have_____.

A. it B. one C. those D. them

13.We saw the hill, and _____used to be a factory.

A. in front of which, there B. in front of it, it C. at the foot of it, there D. at the foot of which, it

14.Your idea is very good. Don't _____.

A. give up it B. give it up C. give in it D. hasn't it

15.When they will start hasn't been decided yet,______?

A. will they B. won't they C. has it D. hasn't it

提高篇

1.It took us over an hour _____ along the street.

A.walk B.to walk C.walking D.walked

2.I think it a great honour _____ to visit your country.

A.to invite B.inviting C.having invited D.to be invited

3.Many people now make_____ a rule to buy cards for

their friends before Christmas.

A.themselves B.it C.that D.this

4. _____ is very clear to everyone that he is round and

tall like a tree.

A.This B.What C.That D.It

5.In the United States,bus travel doesn’t cost much as train travel,_____ ?

A.don’t they B.does it C.do they D.doesn’t it

6.Someone is at the door,who is_____ ?

A.this B.that C.it D.he

7. _____raining hard for three hours without stopping.

A.It is B.It was C.It has been D.It had been

8.—Has the boy got his bicycle now?

—Yes,the police gave_____. .

A.him to him B.it to it C.it to him D.him to it

9.It is important _____their offer.

A.reject B.rejects C.to reject D.rejecting

10.Has _____been decided when we are to hold the sports-meeting?

A.that B.this C.it D.what

11.—Did Li Lei call me while I was out?

—Yes,it was _____that called you.

A.him B.he C.who D.whom

12.Nothing is wrong with the radio,_____ ?

A.isn’t it B.is that C.is it D.isn’t that

13.I don’t think _____difficult for a Chinese student to

master a foreign language within five years.

A.that B.it C.too D.very

14.It’s the second time you _____late this week.

A.arrive B.arrived C.have arrived D.had arrived

15.It will not be _____we meet again.

A.long before B.before long C.soon after D.shortly after

16.It’s demanded that we _____there on foot.

A.not to go B.don’t go C.not go D.won’t go

17.“It” is often used to _____a baby.

A.mean to B.stick to C.point to D.refer to

18.It was not until 1936 _____basketball became a regular part of the Olympic Games.

A.that B.when C.which D.then

19. _____you met the Englishman?

A.Where it was that B.Who it was that

C.Where was it that D.Where was that

20. _____that she has gone to the United States?

A.Was it true B.Is it true C.It is true D.It was true

21._____certain that his invention will lead to the development of production.

A.That’s B.This is C.It’s D.What’s

22. _____in 1914_____the First World War broke out?

A.Was that;that B.Was that;when

C.Was it;that D.Was it;when

23.It is important that she_____with Mr. Williams immediately.

A.speak B.spoke C.will speak D.to speak

24. _____that there’s another good harvest this year.

A.It says B.It is said D.It was said D.He was said

25.It’s no use_____over spilt milk.

A.cry B.crying C.that you cry D.for you to cry

巩固篇答案:

1—5 D B A B C 6—10 B A B C D 11—15 C B C B C

提高篇答案:

1~5 BDBDB 6~10 CCCCC 11~15 BCBCA

16~20 CDACB 21~25 CCABB

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