1、精選優質文檔-傾情為你奉上重點代詞it的用法和練習（含答案）(1)it用做人稱代詞的用法 it用作代詞，意為“它”，既可以指人，也可以指物。it做人稱代詞，可以用來代替一個名詞、短語、從句或句子，以避免他們在句中的重復。這是可以指提到過的，也可以指未提到的，在句中做主語、表語和賓語。1)指事物，it可以知道除人以外的任何事物或動物。I dropped my watch and it broke.我把手表掉在地上摔壞了。2)指人，it主用用于指性別不明的嬰兒或只聽其聲不見其人的人，如：Is it a boy or a girl?是男孩還是女孩？There is a knock on the do

2、or. It must be the postman.“Listen. Someone is crying.” “Oh, it must be Mary.”3） 代替某些代詞。代詞it可以用于代替指示代詞this, that以及復合不定代詞something, anything, nothing等，如：“Whats this?” “Its a new machine”(2)it用作非人稱代詞的用法1)it用作非人稱代詞主要用來指時間、距離、價值、天氣、氣溫及溫度等自然現象。如Its too late to go there now.現在去那已經太遲了。It rained all day yes

3、terday.昨天下了一整天雨。2)用于某些句型。Its time for sth. 該做某事了。Its to do sth. 是時候該做某事了。Its time for sb to do sth. 某人該干某事了。Its (about/high) time +that-從句。某人該做某事了。（從句謂語用過去式，有時候用should+動詞原形）Its first(second)time +that-從句。某人第幾次干某事。（從句謂語動詞用現在完成時）Its +時間段+since從句。自從以來有一段時間了。Its +時間段+before 從句。過多長時間才(3)it用作形式主語的用法。1)當不定

4、式、動名詞、從句等復雜成分做句子主語時，為保持句子的平衡，通常把真正的主語放在句末，而句首使用形式主語it。如Its very important to remember this.Its hard work climbing mountains.Its unknown when he will come.2)it用作形式主語的重要句型。It+be+adj.+for(of)sb to do sth. 某人做某事It is hard for him to make up his mind.他很難下定決心。It was foolish of her to say such a thing.她說那樣

5、的話，太愚蠢了。提示：此句型中的介詞of和for的區別是：of用于指某人的性格，屬性，特征等。介詞for表示對象，意為“對來說”。It takes/took sb+時間段+to do sth.某人做某事花了時間。It took me two hours to finish my homework.It is up to sb to do sth.該由某人做某事了。Its up to you to make the choice.該由你來做選擇了。It looks(seems,appears,happens,occurs) that (as if) 似乎It seems as though he

6、 didnt recognize me.(4)it用作形式賓語的用法。1)當不定式、動名詞、從句等復雜成分用作賓語且后面跟有賓語補足語時，通常會在賓語補足語前使用it作形式賓語，而將真正的賓語移至句末。其基本結構為“動詞+it+賓語補足語+不定式（動名詞或從句）”I find it difficult to do the job well.I think it best that you should stay here.We think it no use complaining.2)用作形式賓語的幾個特殊結構：動詞+it+that-從句I think it (that) he will c

7、ome on time.動詞+it+when(if)-從句We rally appreciate it when she offered to help.動詞+prep.+it+that-從句I cant answer for it that he will come.我不能保證他會來。動詞+it+介詞短語+that-從句I took it for granted that he would help us.(5)it在強調句中的用法。強調句的基本結構是：It+be+被強調部分+that(who)+其他部分。It was a computer that he bought last week.

8、練習部分1. I like in the autumn when the weather is clear and bright. A. this B. that C. it D. one解析 C.句中like為及物動詞,后面需要跟賓語.而like之后不可直接接從句作賓語.it可用于某些動詞(hate, appreciate)和介詞之后作籠統賓語.2. He was nearly drowned once. When was ? was in 1998 when he was in middle school.A. that; It B. this; This C. this; It D. t

9、hat; This解析A. 第一空用that指代上文提到的事情; 第二空用it指代第一空的that3. 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解析 B此處it指代前面出現的a new house. it指代上文提到的同一事物,為特指;而one通常指代同類事物中的某一個.4. Someone is ringing the doorbell. Go and see .A. who is he B. who he i

10、s C. who is it D. who it is解析 D此處it用作人稱代詞,指不明身份,性別的人;賓語從句應用陳述語序.5. 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 解析 D此處it用作形式主語.6. Mikes mother kept telling him that he should work hard, but didnt help.A. he B. it C. she D. which解析 B

11、此處it用以指代前面的句子,可用that替換.7. Since you have repaired my computer, is no need for me to buy a new one.A. it B. there C. this D. that解析 B考查固定句型 There is no need for sb to do sth8. The official made clear that he would do everything possible to solve the problem.A. it B. this C. that D. him解析 A此處 it用作形式賓語

12、.9. Do you like here? Oh, yes, the air, the weather and the way of life. Everything is so nice.A. this B. there C. that D. it解析 D此處 it泛指自然環境.10. Bills aim is to inform the viewers that cigarette advertising in TV is illegal, ?A. isnt it B. is it C. isnt he D. is he 解析A主語為 “ Bills aim”.11. is mention

13、ed above, the number of the students in senior high school is increasing.A. which B. As C. That D. It解析 B非限制性定語從句中, as /which均可指代整句話的內容,但 which只能放在主句后,譯為 “這一點”; as則位置靈活,譯為 “正如”.12. It was with great joy he received the news that his lost daughter had been found.A. because B. which C. since D. that解析

14、 D考查強調句型.13. It was back home after the experiment.A. not until midnight did he go B. until midnight that he didnt go C. not until midnight that he went D. until midnight when he didnt go解析 C考查not until結構強調句型.14. Why! I have nothing to confess. You want me to say?A. What is it that B. What it is tha

15、t C. How is it that D. How it is that解析 A考查強調句型的特殊疑問句句式.15. 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解析 B考查強調句型.被強調部分是not where you come from or what you are (but ) the ability to do the job.為了平衡結構,部分移至句尾1. （據報道）a lot of people lost

16、their jobs in the city last month.(report)2. （據報道）, a lot of people lost their jobs in the city last month.(report)3. （毫無疑問）he will be admitted to the key university.(doubt)4. He has made some great movies. （這一點是毫無疑問的）.(doubt)5. （沒必要）for you to get up early tomorrow.(need)6. （碰巧）I had been away when

17、 he called.(happen)7. （看來）nobody knows what has happened.(seem)8. （看起來似乎）it's going to rain.(look)9. （很可能）the thieves dont know how much it is worth.(likely)10. （我也許可以）to leave a message for her.(possible)1. Its reported that 2. As is reported 3. There is no doubt that 4. There is no doubt about

18、 it 5. There is no need 6. It happened that 7. It seems that 8. It looks as if 9. Its likely that 10.Its possible for me11. Its no use （為打翻的牛奶而哭泣）.(cry)12. （抱怨是毫無用處的）, they never listen.(use)13. （難怪）youve achieved so much success.(wonder)14. (很明確）most of the farmers have brought in more money by all

19、 means.(certain)15. （據說）the professor has already succeeded in carrying out this experiment.(say)16. The professor is said 已成功）in carrying out this experiment.(succeed)（比較句型15）17. （感到遺憾）I havent been to the get-together.(pity)18 （使之成為一種慣例）that I get up at six every day in the morning.(rule)19. I （認為

20、有必要）to take plenty of hot water every day.(think)20. Its high time that we （采取措施）to stop pollution.(take)11. crying over spilt milk 12. Its/There is no use complaining 13. Its no wonder that14. Its certain that 15. Its said that 16. to have succeeded 17. I feel it a pity that 18. I have made it a ru

21、le 19. think it (is) necessary 20. took/should take measures21. （要花費她很長時間）to recover from the illness.(take)22. This/It is the third time that I （看那部電影）.（see）23. It was the first time that she （到長城）.（be）24. It is / has been two years （自從他出國）.（go）25. （對你沒什么差別）whether I like it or not，because you neve

22、r listen to me.（make）26. （用不了多久）before we know the result of the experiment.（be）27. Measures have been taken to solve the problem，but （可能要過段時間）before the situation improves.（some）28. （沒關系）the weather was bad.（matter）29. （是否要緊）whether we go together or separately?（matter）30. （我突然想起）that he might have

23、 forgotten our date.（occur）21. It will take her a long time 22. have seen the film 23. had been to the Great wall 24. since he went abroad 25. It makes no difference to you 26. It wont be long 27. it may be some time 28. It didnt matter that 29. Does it matter30. It occurred to me 31. （可能性不大）he will change his mind.（chance）32. （很可能）we will go to