2022年It用法歸納及練習(xí)50題

1、一、虛詞 it 虛義 it 指用作沒有詳細語義的主語,如表示時間、天氣、距離、溫度、環(huán)境等概念的用法；It is cooler in Tianjin than in Beijing. It is only about half an hours ride from here to my home. It s three oclock now.It looks as if the college is very small. It is very quiet at the moment. 二、指代it 的基本用法是用來指代上文所提到的事物 ,同時也可以用以代替指示代詞 this,that. 1.

2、My dictionary is missing, I cant find it anyway.2.Tom has failed in the exam, have you heard about it. 3. Whats this.- it s a computer.4. Whose bicycle is that. - it s hers.it, one, 用于指代用法時的區(qū)分 : it 代替上文提及的原物 復(fù)數(shù)用 they ；one 指代上文提及的、泛指的可數(shù)名詞單數(shù) （復(fù)數(shù) ones ）Do you want the watch. Yes, I want it. Do you want

3、 a watch. Yes, I want one. What is a panda like. I ve never seen one, so I don t know what it is like. 指代不明身份或性別的人也用 it ,有時可以用來指嬰兒,有時仍可以指引起某種情形的事物；1.A:-Who is making such a noise. B:-It must be the children. 2.Its the wind shaking the window . It is crying. 3.Look that lovely baby in the cradle. Oh,

4、 dear. 4.A ：Whos it knocking at the door. B: Its me. 三、形式 it: 1形式主語： 不定式、動名詞以及主語從句作主語時,為防止 后置；It seemed impossible for him to get back home. It was worthwhile searching for his roots. “頭重腳輕 ”,要將真正的主語It was obvious that his ancestor taught his younger generation little of his own language. 1. It is c

5、lear obvious, true, possible, certain that 該句型中 it 是形式主語, 真正的主語是 that 引導(dǎo)的主語從句, 常譯為 “ 清晰（明顯,真的,確定 ）”是主語從句最常見的一種結(jié)構(gòu)；It is very clear that hes round and tall like a tree. = That hes round and tall like a tree is very clear. 2. It is important necessary, right, strange, natural. that . 該句型和上一個同屬一個句型；由于主句

6、中的形容詞不同,that 后的從句中要用虛擬語氣（should + 動詞原形）,should 可以省去；建議記住該句型中的形容詞；It is important that we should learn English well. It is necessary that he should remember these words. “ 據(jù)3. It is said repor ted, learned that 該句型中的it 仍是形式主語,真正主語是that 引導(dǎo)的主語從句；該結(jié)構(gòu)常譯為說（據(jù)報道,據(jù)悉 ）”；It is said that he has come to Beijing.

7、 It is reported that another man-made satellite has been put into orbit 4. It is suggested ordered, required . that . 該句型和上一個同屬一個句型；主句中的過去分詞是表示懇求,建議,命令等詞時,that 后的從句要用虛擬語氣（ should + 動詞原形）,should 可以省；常譯為 “ 據(jù)建議；有命 令 ）”；It is suggested that the meeting should be put off. It was ordered that we should ar

8、rive there in two hours. 5. It is a pity a shame . that . 該句型中, that 后的從句一般用虛擬語氣（should + 動詞原形）,should 可省去表 示出乎意料,常譯為 “竟然”；沒有這種意義時,就不用虛擬語氣；It is a pity that such a thing should happen in your class. 這種事竟然發(fā)生在你們班上,真是遺憾！It is a pity that he is ill. 他生病了,真遺憾！6. It is time about time , high time that . 該

9、句型中 that 后的從句應(yīng)當用虛擬語氣, 值得留意的是： 常用過去時態(tài)表示虛擬 有時也用 should + 動詞原形, should 不能?。怀Ｗg為 “是（正是） 的時侯 ”；It is time that children should go to bed. = It is time that children went to bed. 7. It is the first second time that 該句型要和上一個句型區(qū)分開來；該句型中的that 從句不用虛擬語氣,而用完成時態(tài)；至于用什么完成時態(tài),由主句的謂語動詞的時態(tài)打算；假如是一般現(xiàn)在時,后面從句用現(xiàn)在完成時態(tài)； 假如是一般

10、過去時, 后面從句就用過去完成時態(tài)； 該結(jié)構(gòu)中 that 可以省去； it 有時用 this 替換,常譯為 “是第一（二） 次 ”；It is the first time I have been here. = This is the first time I have been here. 8. It is since .該句型主要用作處理瞬時動詞的完成時,又要和表示一段時間的時間狀語連用的問題；主句中是時間作表語,其時態(tài)是現(xiàn)在時或完成時,since 引導(dǎo)的從句通常是一般過去時態(tài),而且是瞬時動詞；假如主句是一般過去時,從句就用過去完成時；It is has been 5 years sin

11、ce his father died. 9. It is . when . 該句型中的 when 引導(dǎo)的是一個時間狀語從句,主句中的 it 指時間,表語由詳細的時間充當；常譯為“當 的時候,是 ”；It was 5 oclock when he came here. 10. It be . before . 該句型主句中的 it 指時間 , 主句中的時態(tài)常是將來一般時或過去時兩種時態(tài)主句中的表語多是 long, not long , 3 days , 2 weeks 等表示時間段的詞或短語；常譯為“ 之后 ”；It was 3 days before he went to Beijing. I

12、t will be not long before he finishes his job. 11. It happens seems, looks, appears that. 該句型中 it 是形式主語, that 引導(dǎo)的是主語從句,主句中的 happen, seem 等詞是不及物動詞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. 看來 12. It takes sb. to do sth.該句型中的不定式是真正的主語

13、,it 是形式主語,句型中的直接賓語是時間；常譯為“做 要花費某人 ”；It took thousands of people many years to build the Great Wall. 13. It is no good use doing sth. 該句型中的真正主語是動名詞短語,主句中的表語可以是no good , not any good , no use , not any use ；It is no good learning English without speaking English. 14. It doesnt matter whether if . 該句型中

14、whether if 引導(dǎo)的從句是真正主語,該句型常譯為“不論（是否） 沒關(guān)系 ；It doesnt matter if they are old. 15. It is kind of sb. to do sth. 該句型中的不定式短語是真正主語,假如不定式的規(guī)律主語是由of 引起,主句中的形容詞必需是能表示規(guī)律主語特點的形容詞；常見的有: bad, brave, careless, clever, cruel, foolish, good 好心的 , honest, horrible, kind, lazy, modest, naughty, nice 有教養(yǎng)的 , polite, rude

15、, silly, stupid, wise, wrong 錯誤的 等； 這個句型可以改寫為： sb. is kind to do sth. It is kind of you to say so. = You are kind to say so. 16. It is necessary for sb. to do sth. 該句型與上一個同屬一個句型；假如不定式的規(guī)律主語是由 for 引起,主句中的形容詞 通常是表示重要性,緊迫性,頻繁程度,難易,安全等情形的形容詞；常見的形容詞有： important, necessary, natural easy, safe, common, norm

16、al, hard, difficult, dangerous, unusual, rare, impossible, pleasant 等；在中的形容詞作表語可以用從句改寫,如：It is important for her to come to the party. = It is important that she should come to the party 引導(dǎo)一個狀語從句；常譯為,“看17. It looks seems as if . 該句型中 it 無意義；as if 起來好象 假如與事實不相符合,就用虛擬語氣It looks as if he is ill. （真的病了）

17、It looks as if he were ill. （沒有生?。㊣t seemed as if he were dying. 2形式賓語：18. We think it important to learn a foreign language. 該句型中的 it 作形式賓語；為了記憶便利我們可稱該句型為：6123 結(jié)構(gòu)6 指主句中常用的動詞： think, believe, make, find, consider, feel 1 指的是形式賓語 it ；2 指的是賓補的兩種形式：形容詞或名詞；3 指的是真正賓語的三種形式：不定式短語,動名詞短語或 Airplanes have made

18、 it easy and comfortable for us to travel. I took it for granted that you would stay with us . that 引導(dǎo)的賓語從句；We found it useless learning a theory without practice. 不定式、動名詞以及主語從句作賓語時,為防止“頭重腳輕 ”,要將真正的賓語后置；四、強調(diào) it: 19. It is + 被強調(diào)部分 + that .該句型是強調(diào)句型；將被強調(diào)的部分放在前面,其它部分置于 that 之后；被強調(diào)部分可以是主語,賓語,表語或狀語；強調(diào)的主語假

19、如是人,that 可以由 who 換用；假如把這種句型結(jié)構(gòu)劃掉后,應(yīng)當是一個完整無缺的句子；這也是判定強調(diào)句型與其它從句的方法；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. 20. It is not until + 被強調(diào)部分 + that . 該句型也是強調(diào)句型；主要用于

20、強凋時間狀語,譯成漢語 not . until . 的強調(diào)形式；“直到 才 ”,可以說是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 didnt realize she was a famous film star until she took off her dark glasses.

21、 留意：1一般強調(diào)時間不能用 when, 強調(diào)地點不用 where; 2強調(diào)句子謂語不能使用此句型,應(yīng)使用助動詞的適當形式；3在強調(diào) until 引導(dǎo)的狀語時,假如在句中有 與 until 連用；not,not 要提前1.I did meet an old friend in the street last week. 2.What I did last week was to meet an old friend in the street. 3.The teacher didnt begin his class until everybody took their places. It w

22、as not until everybody took their places that the teacler began his class. it 的用法及專練 50 題從 A、B、C、D 四個選項中,選出可以填入空白處的正確選項；1. The boy became fatter and fatter each day and _ made his parents sad. A. which B. what C. he D. it 2. Someone is ringing the doorbell. Go and see _. A. who is he B. who he is C.

23、 who is it D. who it is 3. 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 4. Tom s mother kept telling him that he should work harder, but _ didn A. he B. which C. she D. it 5. Does _ matter whether he can finish the job on time. A

24、. this B. that C. he D. it 6. _ used to be thought that the earth was square. A. He B. What C. It D. That 7. I took _ for granted that he would believe in us. A. that B. the thing C. it D. this 8. He lived in poverty, and he couldn _. A. so B. such C. it D. that 9. We had to be patient because it _

25、some time _ we got the full results. t help.A. has been ； since B. had been ； until C. was ； after D. would be ； before 10. _ four years since I joined the army. A. There was B. There is C. It was D. It is 11. Have you ever seen a whale alive. Yes, I A. thatve seen _. B. it C. suchD. one 12. _ being

26、 March 12th, they planted trees on the hill. A. That B. It is C. It D. This ”13. Was that the new comer who walked by. A. It must be that B. It must have been _. C. He must be D. This must have been 14. Our classroom is very clean. Do you know who _ cleaned it. A. was it that B. it was that C. was i

27、t who D. he was 15. Its the third time _ arrived late this month. A. that you B. when you C. that youve D. when you ve16. He said, _ a long way to school. _ a long way to go yet before we arrived.A. It is ； There is B. There is ； It is C. It is ； It is D. There is ； There is 17. _ for the free ticke

28、ts, I would not have gone to the films so often. A. If it is not B. Where it not C. Had it not been D. If they were not 18. She finds _ boring _ at home. A. it ；staying B. that ；being stayed C. this ；to stay D. it；stayed 19. Few children are as bright as he is, and also, he works very hard. It s no

29、_ that he always gets the first place in any examination. A. question B. doubt C. problem D. wonder 20. Now then, children. Its high time you _ and dressed. A. washed B. should wash C. were washed D. are washed 21. Why did he let you repeat his instruction time and time again. _ that I remember what

30、 was _ after he went out. A. To see to it ；to be done B. Making sure ； to be done C. To make sure ；to do D. Seeing to ； done 22. _ the people have become the master of their own country _ science can really serve the people. A. It is only then ； that B. It was that ； when C. It is only when ； that D

31、. It was when ； then 23. _ is no difference between A and B. A. There B. Where C. It D. What 24. How long _ to finish your composition. A. will it take you B. will take you C. you will take it D. you will take 25. _ is just like him to want to do something different from everybody else. A. It B. The

32、re C. He D. Who 26. That young Swedish _ quite still, except that his lips moved slightly. A. kept B. grew C. got D. stood 27. In late autumn leaves _ brown. A. get B. turn C. stand D. come 28. Little Jims speech sounds _. A. friendly B. wonderfully C. pleasantly D. nicely 29. The poor boy _ blind a

33、t the age of three. A. turned B. went C. became D. looked 30. As a child, Franc _. A. was alive B. grew patience C. ran wild D. came true 31. In spring, all the flowers in the garden _ sweet. A. become B. taste C. smell D. sound 32. She _ like her mother in character. A. feels B. seems C. looks D. i

34、s 33. It _ another fine day tomorrow. A. seems B. appears C. promises D. looks 34. His father _ that older than he really is. A. grows B. appears C. turns D. becomes 35. His girlfriend _ a singer. A. has turned B. grew C. has become D. turned 36. Obviously, the old soldiers knowledge of English _ very weak. A. seems B. rose C. remained D. looked 37. His mother _ teacher. A.