it用法

IT 的用法

一 。1.做代词，代替刚提到的过的一件事情。 a. 可以指一个具体的东西。b. 可以指前面所谈的事情或情况. eg. a. It’s a nice room. b.You promised to write the article, and you must do it. 2.做代词代替指示代词 this, that eg. ---What’s this? ------ It’s a flag.

3.起指示代词的作用，指一个人或事物，it 所指的东西不很具体。 a.有时指某个动作的人。b .有时指引起某种情况的事物。 eg. a.. ----Who is knocking at the door? ---- It’s me. b.It’s the wind shaking the window. 4.指环境，情况等。 eg. It’s very quiet at the moment. 5.指自然现象（天气，气候，明暗等） eg. I’s getting cold (dark, late, etc.).

6.指季节，时间 eg. It was late autume (early spring, mid summer, etc). 7.指距离 eg.It’s only five miles (half an hour’s walk).

8.用于强调结构，在这里it 可以说没有意思。它只帮助改变一个句子的结构，使某一成分受到强调，改变结构的办法是： IT + be + 要强调的部分+ that(who, whom) + 句子其他部分

强调的部分是人用who(m), 其他情况多用that eg. It was Mary who (that) met your sister in the zoo yesterday. 二、it的几个特殊用法

1. make it ①表示“成功;做到;赶上”。如:

The train is due to leave in five minutes ? we will never make it . 火车再有五分钟就开了,我们是绝对赶不上了。 You can’t make it to the other shore in this weather. 天气这么恶劣,你可到不了对岸。 ②表示“规定时间”。如: －Shall we meet next week? 下星期我们碰一次头好吗? －Yes. Let’s make it next Sunday. 好的,让我们约定下星期日碰头吧。

2. as it is ①用于句前,表示“事实上”。如: I thought he would get better, but as it is he is getting worse. 我认为他会好转,但事实上他一直在恶化。 ②用于句末,表示“照原样”。如: Leave the chair as it is. 那椅子照原样放着,别动。 3. as it were可以说;在某种程度上 He is, as it were, a walking dictionary. 他好比是一本活字典。 It 句型大全

1. It is + 被强调部分 + that ... 该句型是强调句型。将被强调的部分放在前面，其它部分置于that之后。被强调部分可以是主语，宾语，表语或状语。强调的主语如果是人，that可以由who换用。如果把这种句型结构划掉后，应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。 It was about 600 years ago that the first clock with a face and an hour hand was made. It was they that (who ) cleaned the classroom yesterday. It was in the street that I met her father.

2. It is not until + 被强调部分 + that ...该句型也是强调句型。主要用于强凋时间状语，译成汉语＂直到．．．才．．．＂，可以说是 not ... until ... 的强调形式。 It was not until she took off her dark glasses that I realized she was a famous film star.= Not until she took off her dark glasses did I realize she was a famous film star.= I didn’t realize she was a famous film star until she took off her dark glasses.

3. It is clear ( obvious, true, possible, certain....) that ..... 该句型中it 是形式主语，真正的主语是that 引导的主语从句，常译为＂清楚（显然，真的，肯定．．．）＂ 是主语从句最常见的一种结构。 It is very clear that he’s round and tall like a tree. tall like a tree is very clear.

4. It is important ( necessary, strange, natural...) that ... 该句型和上一个同属一个句型。由于主句中的形容词不同，that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去。建议记住该句型中的形容词。 It is important that we (should) learn English well. It is necessary that he (should) remember these words.

5. It is said (reported, learned....) that ... 该句型中的it 仍是形式主语，真正主语是that 引导的主语从句。该结构常译为＂据说（据报道，据悉．．．）＂。 It is said that he has come to Beijing. It is reported that another earth satellite has been put into orbit.

6. It is suggested ( ordered ... ) that ... 该句型和上一个同属一个句型。主句中的过去分词是表示请求，建议，命令等词时，that 后的从句要用虚拟语气（should + 动词原形），should 可以省。常译为＂据建议；有命令．．．） It is suggested that the meeting ( should ) be put off. It was ordered that we ( should ) arrive there in two hours.

7. It is a pity ( a shame ... ) that ...该句型中，that后的从句一般用虚拟语气（should + 动词原形），should可省去．表示出乎意料，常译为＂竟然＂。没有这种意义时，则不用虚拟语气。 It is a pity that such a thing ( should ) happen in your class. 这种事竟然发生在你们班上，真是遗憾！It is a pity that he is ill. 他生病了，真遗憾！

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= That he’s round and

8. It is time ( about time ,high time ) that ... 该句型中that 后的从句应该用虚拟语气，值得注意的是① 常用过去时态表示虚拟．② 有时也用should + 动词原形，should 不能省。常译为＂是（正是）．．．的时侯．．．＂。 It is time that children should go to bed. = It is time that children went to bed.

9. It is the first ( second ... ) time that ...该句型要和上一个句型区别开来。该句型中的 that 从句不用虚拟语气，而用完成时态。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。该结构中 that 可以省去；it有时用 this 替换．常译为＂是第一（二）．．．次．．．＂。It is the first time I have been here. = This is the first time I have been here.

10. It is .... since ... 该句型主要用作处理瞬间动词的完成时，又要和表示一段时间的时间状语连用的问题。主句中是时间作表语，其时态是现在时或完成时，since 引导的从句通常是一般过去时态，而且是瞬间动词。如果主句是一般过去时，从句则用过去完成时。 It is ( has been ) 5 years since his father died.

11. It is ... when ... 该句型中的 when 引导的是一个时间状语从句，主句中的 it 指时间，表语由具体的时间充当。常译为＂当．．．的时候，是．．．＂。 It was 5 o’clock when he came here.

12. It be ... before ... 该句型主句中的 it 指时间, 主句中的时态常是将来一般时或过去时两种时态．主句中的表语多是long, not long , 3 days , 2 weeks 等表示时间段的词或短语。常译为＂．．．之后．．．＂。 It was 3 days before he went to Beijing. It will not be long before he finishes his job.

13. It happens (seems, looks, appears ) that... 该句型中it是形式主语，that 引导的是主语从句，主句中的happen , seem等词是不及物动词． It happened ( so happened ) that he met his teacher in the street. 碰巧．． It seems that he will be back in a few days. 看来．．．

14. It takes sb. ... to do sth. 该句型中的不定式是真正的主语，it是形式主语，句型中的直接宾语是时间。常译为＂做．．．要花费某人．．．＂。 It took thousands of people many years to build the Great Wall.

15. It is no good (use ) doing sth. 该句型中的真正主语是动名词短语，主句中的表语可以是no good , ( not any good ) , no use , ( not any use )。 It is no good learning English without speaking English.

16. It doesn’t matter whether ( if ) ... 该句型中whether(if) 引导的从句是真正主语，该句型常译为 ＂不论（是否）．．．没关系．．．。 It doesn’t matter if they are old.

17. It is kind ( of sb. ) to do sth.该句型中的不定式短语是真正主语，如果不定式的逻辑主语是由 of引起，主句中的形容词必须是能表示逻辑主语特征的形容词。常见的有： bad , brave , careless, clever , cruel , foolish , good （好心的）, honest , horrible , kind , lazy , modest , It is kind of you to say so. = You are kind to say so.

18. It is necessary ( for sb. ) to do sth. 该句型与上一个同属一个句型。如果不定式的逻辑主语是由for引起，主句中的形容词通常是表示重要性，紧迫性，频繁程度，难易，安全等情况的形容词。常见的形容词有：① important, necessary, natural ② easy , safe , common , normal , hard , difficult , dangerous , unusual, rare , impossible , pleasant等。 在①中的形容词作表语可以用从句改写，如： It is important for her to come to the party. = It is important that she (should ) come to the party

19. It looks ( seems ) as if ... 该句型中it无意义。 as if 引导一个状语从句。常译为，＂看起来好象．．．＂如果与事实不相符合，则用虚拟语气． It looks as if he is ill.（真的病了）

It looks as if he were ill. （没有生病） It seemed as if he were dying.

20. We think it important to learn a foreign language. 该句型中的it 作形式宾语。 我们可称该句型为“6123结构”。 6 指主句中常用的动词：think, believe, make, find, consider, feel； 1 指的是形式宾语 it； 2 指的是宾补的两种形式：形容词或名词； 3 指的是真正宾语的三种形式：不定式短语，动名词短语或that引导的宾语从句。 We think it our duty to clean our classroom every day. He felt it important learning English well. They found it difficult that they would finish their work in two days.

21. It is (just) like sb. to do sth. 该句型为“某人（恰恰）是。。。这个样子”。用来表示赞扬或不满，若用否定式，则表示怀疑。 It’s like him to leave the work to others. 是说出那种话的人。

22. It is up to sb. to do sth.该句型为“该由某人做。。。”。该句型中up后的to是介词。It is up to him to clean our classroom today. 今天应由他做教室清洁。It is up to parents to teach their children manners. 该由父母教孩子礼貌。 今天该轮到你做教室清洁。 24. It is no wonder that…

难怪…在该句型中如果用肯定形式，表示“真奇怪，真是令人惊讶”；wonder前的no还可以用small等词替换，

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他就是这样的一个人，把工作推给别人。It isn’t like him to have said anything like that. 他可不

naughty , nice（有教养的）, polite, rude , silly , stupid , wise , wrong（错误的）等。 这个句型可以改写为：sb. is kind to do sth.

23. It is one’s turn to do sth. 句型为“轮到某人做…”。不定式是句子的真正主语。It is your turn to clean our classroom today.

在口语中，It is ….. that可以省略。It is a wonder that he reused such a good offer. he didn’t want to go. 难怪他不愿去。＝No wonder he didn’t want to go.

真奇怪，他拒绝了这样好的帮助。It is no wonder that

25. We are counting on it that you will come. 该句型中的it是一个形式宾语，表示模糊意思或代替后面that 引导的宾语从句。因为在这个句型中的谓语动词都是需要跟宾语的，但又不能直接跟从句作宾语，于是就得在从句前加上一个形式宾语it。常见的短语和动词有：count on (依靠，指望，期盼), see to(负责), depend on (依靠), rely on(信赖，依靠), look forward to (盼望), insist on stick to， answer for等。We are counting on it that you will come.

我们一直盼望着你来。You may rely on it that she won’t be late.

你也许指望她不会迟到。I’ll see to it

that everything is ready. 我将负责把一切都准备好。They are looking forward to it that Miss Li will come back from the USA.有一些动词只能跟it + that从句而不能跟复合宾语。 Like， love, hate, dislike ,enjoy, appreciate，take，put， have I take it that he approves.认为，猜想 take it for granted bring it to sb’s attention owe it to sb

You can put it that it was arranged before // I like it that you came // I take it that He will come on time Rumor（流言） has it that the defence minister will soon resign It的用法专题训练20题

1. Was it during the Second World War_____ he died? A .that B .while C. in which D .then (88) 2. Is ____ necessary to complete the design before National Day? A. this B .that C. it D .he ()

3. I don't think ____ possible to master a foreign language without much memory work. A .this B. that C .its D .it (91) 4 .Does ______ matter if he can't finish the job on time? A. this B .that C .he D it (91)

5 .It was not ___ she took off her glasses ___ I realized she was a famous film star .A .when , that B .until , that C .until , then D. when , then (92) 6.I was disappointed with the film . I had expected ______ to be much better. A. that B. this C. one D .it (93) 7. It was not until 1920 ______ regular radio broad casts began. A. while B. which C .that D .since (94)

8. ______is a fact that English is being accepted as an international language. A. There B .This C .That D. It (95) 9. It was only when I reread this poems recently _____ I began to appreciate their beauty. A. until B. that C .then D. so (97) 10.I hate _____when people talk with their mouths full. A. it B. that C these D .them (98)

11．It was ______he said _______ disappointed me.(1999上海) A. what/that B. that/that C. what/what D. that/ what 12. It is the ability to do the job _____ matters not where you come from or what you are. A. one B .that C. what D .it (2000)

13..____computers play such an important part in our daily life? A．Why it is that B．Why is it that C．Why was it that D．Why is it 14.It was not until 1936___baseball became a regular part of Olympic Games. A. then B. which C that D. when

15..___in 1943___the harmful smog made its appearance in Los Angeles. A. Only.……that B It was.……then C. That it was.……when D. It was.……that

16..It was on the National Day___ she met with her separated sister. A .that B .where C. when D. which

17.___the 1500's___the first European explored the coast of California. A. It was until……then B. It was not until……when C. It is until……that D. It was not until……that

18. .___in this room that our first meeting was held. A. Just when B. When C. Where D .It was 19.．It is because he is too young _______ he does not understand it. A. as B. so C. that D. what

20.It was for this reason ____ her uncle moved out of New York and settled down in a small village． A． which B．why C．that D．how KEYS: 1-5 ACDDB 6-10 DCDBA 11 A 12 B13 B 14-20.CDADDCC

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