It的用法.doc

it的特殊用法（选修六 Units 3+4语法）1. 强调句：It is/ was +被强调部分+that+剩余部分。强调句的最鲜明的特点是具有还原性，即：却掉it is/ was that之后，句子依然结构完整意义不变。如：It was in 1945 that World War II ended. 还原后变成In 1945 World War II ended.It is green that they have painted the door.It must have been his brother that you met yesterday.Who was it that broke the glass yesterday?（特殊疑问句式）It was not until he came back that we knew the truth.I wonder where it was that he had his leg broken.（在宾语从句中）2. it代替动词不定式作主语He doesnt know what it(形式主语) takes to start a business here(真正主语)。It is very important for us to master a foreign language well.It is generous /selfish /typical of sb to do sth It is worthwhile to do sth. It cost me 260 yuan to buy the new watch.3. it代替动名词作主语 It is no use/ no good / useless/ of no good/ no pleasure arguing with her.It is worthwhile doing sth.4. it代替主语从句作主语 How did it happen that our proposal was turned down without any reason?How did it come about that ?.It occurred to me that we could replace the old monitor with a new one.sth occur to sb,突然想到.又如：hit-hit-hit strike-struck-struck/stricken (必修四，P6)Suddenly it hit me how difficult it was for a woman to get medical training at that time. It struck me that从句It remains unclear whether he will win or not.It makes no difference to me what color the curtain is.It is our duty that we should do something to protect our planet.It comes as no surprise that 从句。5. it代替动词不定式作宾语 sb make it a rule to do sth.I find it interesting to communicate with teenagers.6. it代替宾语从句作宾语 make it a rule that sb should do sth.I hate/dislike it when they talk with their mouth full of food.I hope I made it clear to him that he was no longer welcome here.I dont think it a good decision that he should be given this job.7. It be+时间段+since从句比较：It is two years since he stopped(结束性动词，肯定意义) smoking. 他不吸烟/戒烟两年了。 It is two years since he smoked（延续性动词，否定意义）. 他戒烟两年了。8. It be +时间段+before“多长时间以后某事发生”It will be five years before we meet again.It was not long before he came back.9. It be when某事发生时正是时候It was eight oclock when he arrived home.It was February 12, 1809 when Lincoln was born.比较：It was in 1945 that World War II ended. It was 1945 when Word War II ended.10. I would appreciate it if you paid in cash. 假如你支付现金的话，我会感激不尽。11. You must see to it that(=make sure that) the door is locked.Depend / rely/ count on it that从句 “信赖，相信，依靠”， Depend on it that we wont give up.12. If I can help it, I dont like working late into the night.I dont like to do the job, but it cant be helped.(没办法)13. The train is due to leave in five minutes. We will never make it.make it 到达，赶上，成功 He never made it as an actor.Finally he made it to the top of the mountain.14. When shall we meet again? Make it any day you like; its all the same to me.（我无所谓）Lets make it 4:30 this afternoon, shall we?（约定时间）15. Have you got it? Ive got it. I dont get it. 懂了，明白了。16. I still owe you for lunch yesterday. Forget it . 算了吧，别提了。17. Take it easy! Dont panic. (panicpanickedpanicked)Take it seriously. 认真对待。18. Will you go skiing with me next Sunday? It/ That(all) depends. (看情况再说)19. Leave the chair as it is.(照原样，照现状). As it is , we can hardly get to the station by six oclock.20. Im easy. Its up to you to tell me when to set off.由你决定是你的责任. Its not up to you to tell me how to do my job. 还轮不到你来告诉我怎么做我的事。21. Believe it or not, (信不信由你) like it or not, (不管你喜欢不喜欢).22. He was too trusting or, to put it another way(换句话说) , he had no head for business. to put it mildly, 说得温和点，23. He didnt see the film yesterday, though he likes it. Its the same with me (我的情况也是一样的).24. She is smart and studies very hard, so it is with Tom.或者 It is the same with Tom.(Tom也是).25. Dont hesitate about it! Its worth it(有好处，值得做).26. As it turned out (最后被证明是), his statement was tales.27. Thats it (这就对了！就这样！正是这原因。)Thats just it I cant work when youre making so much noise.28. Some of us always take it for granted that (认为理所当然) our parents, grandparents and teachers should take care of us.29. As it happened (真不凑巧，真遗憾), they were out. It happened that she was out when we called.(碰巧.)30. As I see it(在我看来), he is not the right person for this position.31. As Christ put it (正如Chris所说), there is no gain without pain.32. The two sides had a heated discussion, but it came to nothing.(没有什么结果)33. If its convenient, I can come tomorrow. 如果方便的话,34. I think it no use arguing with him.（见3）35. Can I depend on it that this wont take place again? rely / depend on it that从句 信赖，依靠，相信（见11）36. Theres no help for it. 没办法，别无选择 .（见12）37. It was the third time that he had visited China.It is the third time that he has visited China. （要注意从句的时态）38. When it comes to computer games, she is very excited.当谈及/涉及到39. It seems/ appears that he is ill. appear = seem显得，看来，似乎（2012.湖北卷80小题）40. It is high time that we attached / should attach importance to PE classes.该做了.（虚拟语气）41.It comes as no surprise that children become more and more dependent on their parents. 不足为奇，并不奇怪 (Its) no/ little/ small wonder (that)从句 It is little wonder (that) she was so upset.(informal) No wonder youre tired, youve been walking for hours.43. Its a wonder (that) 令人惊奇的是，莫名其妙的是Its a wonder (that) more people werent hurt. 奇怪的是没有更多的人受到伤害。4