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1、名词从句讲练概念：起名词作用的从句叫名词从句。它和名词一样，在句中可充当主语，表语，宾语和同位语。名词从句包括主语从句，表语从句，宾语从句和同位语从句。名词从句的引导词通常有：1. 连词that, whether, if. 2. 连接代词what, whatever, who, whoever, whose, which3. 连接副词when, where, how, why I.主语从句主语从句在从句中作主语，主语从句可以位于句首，但常见的主语从句多放在句末，句首则用形式主语it。例如：1. That the earth is round is true. = It is true that

2、 the earth is round. 2. Whether he will come hasn t been decided. = It hasn t been decided whether he will come. 注意：连词 that, whether 在从句中不担任句子成分，只起连接作用， 不能省略。 并且 whether引导主语从句时不能用if 代替。3. Who let out the news remained unknown. = It remained unknown who let out the news. 4. How this happened is still

3、 a question. 5. It is not clear when we will start. 6. Why he didn t come here is not clear to anyone. = It is not clear to anyone why he didn t come here. 7. Which is right isn t known to us. 注意： who, which, how, when, where, why在所引导的主语从句中可担任主语，宾语，状语，不能省略。可以用形式主语it 引导。8. What he said at the meeting

4、 is important. 9. Whoever leaves the office should tell me. 10. Whenever the Olympic Games will be held in Beijing is not known yet. 注意： who, whom, which, what等可以和 ever 构成合成词，引导主语从句和宾语从句。此类主语从句不能用it 引导，引导词在句中担任句子成分，不能省略。另外，有的“ It 主语从句”已成为固定结构。如：a. It is +名词从句It is a pity that we can t go. b. It is 形

5、容词从句It is clear that Tom has returned. c. It is 过去分词从句It is said / reported / believed / known II. 表语从句在复合句中用作表语的从句是表语从句。That s what we should do. That s why I want to see you. The reason for my absence was that I was ill. 1. be, seem, look 等动词后均可跟表语从句：My suggestion is that we should go shopping. It

6、 seems that it is going to rain. 2. as if, because 也可引导表语从句。It looks as if it s going to rain. It was because I got up late. 3. 在非正式文体中，引导表语从句的that 可以省略。如：The trouble is （that）he is ill. 注意：在表语从句中，当reason 作主语时，引导词只能用that，不能用because，如：他迟到的原因是因为他没有赶上早班车。The reason why he was late was that he didnt cat

7、ch the early bus. III. 宾语从句在复合句中用作宾语的从句是宾语从句1. 作动词宾语I don t know what I was thinking of. I wonder if I might give you a ne cklace. I expect （ that）I shall be back on Sunday. 在口语中， that 引导宾语从句时常常省略。但两个that 从句并列时后边的that 一般不省略。若有补语，则宾语从句要放到补语之后，在宾补前用形式宾语it. He doesn t want it to be known that he is goi

8、ng away. I consider it necessary that he should do it again. 在 think, believe, suppose, expect 等动词之后，宾语从句中谓语的否定常转移到主句的谓语上。如：I don t think he will see you. I don t believe he will go. We don t expect he is coming. I don t think he can do it, can he? 注： 此种用法主句的主语必须是第一人称I 或 we. 而且它的反意疑问句的助动词由从句的助动词来定。I

9、 don t think he can do it, can he? I don t think you are right, are you? 在 suggest, insist, demand, order, require 等表示建议，命令，要求的动词后，从句的谓语动词要用虚拟语气。如：I insisted that he （should）do it at once. She suggested that the work （should） be finished at once. 2. 作介词宾语The teacher is satisfied with what I said. 3.

10、 作 afraid, glad, certain, sure等形容词的宾语。I m afraid that I will be late. I m glad that you passed the exam. IV. 同位语从句如果担任同位语的是个句子，则这个句子是同位语从句。同位语从句表示先行名词的具体内容，能跟同位语从句的名词常见的有news, idea, belief, doubt, fact, rumour, question, order, hope, thought, reply, problem, reason等。引导同位语从句常用连词that， 它在句中不担任句子成分，没有词意

11、。除 that 外， 还有 whether, when, where, who, what, which, why, how等。 可以引导同位语从句。The rumour that there will be an earthquake soon spread all over the area. They have no hope that he will recover. I have no idea where they have gone. 同位语从句与先行名词有时也可以分开。Suddenly the thought came to me that he could go blind.

12、 注：同位语从句与定语从句的区别：（1）同位语从句的先行名词极为有限，而定语从句的先行词则不计其数。（2）引导同位语从句的连词that 在句中不担任句子成分，而引导定语从句的that 则在从句中作主语，宾语等。引导同位语从句的wh 一词多具有疑问意义，而引导定语从句的wh 一词则没有疑问意义。（3）同位语从句与先行名词是等同关系，一个具体，一个抽象，两者常可以转述为主表关系，而定语从句与先行词是修饰与被修饰关系。比较：The news that our team won the game is true. （_）The news is that our team won the game. （

13、_）The news that you have heard isn t true. （ _）Whether 与 if 在名词从句中的用法Whether 可以用于所有的名词从句中，if 只用于宾语从句中，两者都不能省略。1. 在引导宾语从句（动词宾语从句）时，whether 和 if 可以互换，但如果出现or not 则只能用 whether. I don t know whether / if I can come. = I don t know whether I can come or not. 2. 介词的宾语从句只能用whether 引导。We worried about wheth

14、er he was in good health or not. 3. 引导主语从句， 表语从句，同位语从句时都用whether. The question is whether you can do it yourself. （_）Whether they will win is all the same to me. （_）The question whether he should come himself or send another one hasn t been decided. （_）4. 和动词不定式连接时，只能用whether. I haven t decided whet

15、her to go there or not.随堂练习.用适当连词填空1. _ you need is more practice. 2. _ we need more equipment is quite obvious. 3. Ihave no idea _ we want to go next. 4. The fact is _ we are behind the other groups. 5.That is _ we are firmly against. 6. That is _ the key lies. 7._ is troubling me is _ 8. I don t h

16、ave much experience in this kind of work.1.The teacher asked the students _ they had understood the text. 9. He told us all _ he knew. . Choose the right word to the following sentences. 1.The news _ he was kidnapped surprised us greatly.A. what B. that C. why D. when 2.Nantong is no longer _ used t

17、o be ten years ago. A. how B. what C. that D. where 3. His suggestion _ the meeting be delayed was turned down. A. which B. that C. / D. it 4. The thought _ he might fail in the exam worried him. A. when B. which C. what D. that 5. Tom is greatly different from _ he was when he was young. A. what B.

18、 how C. where D. that 6. He often asked me the question _ the work was worth doing. A. whether B. if C. that D. when 7. Father made a promise _ I passed the examination he would buy me a bike. A. that B. if C. whether D. that if 8. The question _ we need it has not yet been considered. A. if B. whet

19、her C. that D. which 9. I ve come here to find someone, but I m not sure _ is the one I want to find.A. whatever B. whoever C. who D. whom 10. _ breaks the law should be punished. A. Anyone B. Who C. Whoever D. Whatever 11. It was quite noisy there and I couldn t hear_.A. how he said B. that he said

20、 C. what he said D. anything which he said 12. Can you tell me _ the railway station? A. how I can get to B. how can I get to C. where I can get to D. where can I get to . Translate the following sentences into English. 1.他姐姐是个歌星,这大家都知道 . 2.他在门口告诉我们的事真令人兴奋. 3.她无论说什么都不能感动我们. 4.下周日是否去野炊取决于那天是否天好. 5.请告

21、诉我你是怎么做这道难题的. Keys: 1.What;2.That;3.where;4.that;5.what;6.where;7.What;8.whether;9.what 1.B;2.B;3.B;4.D;5.A;6.A;7.D;8.B;9.C;10.C;11.C;12.A 1.That his sister is a singing star is known to us all. 2.What he told us at the gate was really exciting. 3.Wharever she said couldnt move us. 4.Whether well go

22、 for a picnic next Sunday depends on whether it will be fine or not. 5.Please tell me how you worked out the difficult problem.名词性从句专练、1 She is a rich woman is known to all in the city. A. / B. That C. Who D. Because 2. My cousin asked meI could lend him the Chinese novel. A. whether B. / C. that D.

23、 which 3. The difficulty lies inwe have no money. A. that B. which C. the fact D. the fact that 4. The facthe was successful proves his ability. A. that B. what C. which D. why 5.“ What are you doing here, Joan? ” Robert asked. A. Robert asked Joan: what she is doing there. B. Robert asked Joan what

24、 she was doing there. C. Robert asked her what was she doing there. D. Robert asked Joan she was doing what there. 6. Is a fact that English is being accepted as an international language. A. There B. This C. That D. It 7.They have no idea at all. where has he gone B. which place he has goneC. where

25、 he has gone D. where did he go 8. The reason he has been such a successhe never gives up. A. is because B. is what C. is that D. is 9. Mathematics is the base of all other sciences. A. This is because B. This is that C. It is that D. Because 10. China is becoming stronger and stronger. It is no lon

26、ger. A. what it used to be B. what it was used to being C. what it used to being D. what it was used to be 11. The reason why he hasn t come is. A. because his mother is ill B. because of his mother s being illC. that his mother is ill D. for his mother is ill 12. The man asked . A. what was going o

27、n there B. what it was going on there C. what s going on there D. what going on there13. leaves the room last ought to turn off the light. A. Anyone B. The person C. Whoever D. Who 14. It was possible, but not probablemanager of the firm. A. he will be elected B. he must be elected C.that he would b

28、e elected D. that he must be elected 15.It s uncertain the experiment is worth doing. A. if B. that C. whether D. how 16. I have will be yours sooner or later. No matter what B. No matter whatever C. Whatever D. That 17.I ll eatyou give me. A. no matter what B. no matter whatever C. whatever D. what

29、 18. I can t understand ishe wants to change his mind. That; that B. Which; whatC. What; what D. What; why 19.I wonder how much. A. cost these shoes B. do these shoes cost C. these shoes cost D. are these shoes cost 20. I will accept the gift is none of your business. A. If B. Whether C. What D. Whi

30、ch 21.We could see the tower clearly fromwe were standing. where B. there C. which D. it 22. there is life on another planet is almost impossible. A. How B. That C. Why D. Whether 23.The demand the workers ask for higher wages seemed reasonable. A. what B. that C. which D. when 24. was a well-known

31、fact. That their team was weak B. That their team being weak C. Their team was weak D. If their team was weak 25.Has it been announcedthe planes are to take off? A. when B. what C. where D. who 26.Nobody knew. A. where he comes B. where he was from C. where he is from D. where does he come from 27.F

32、ather asked . A. what was wrong with me B. what s wrong with meC. what wrong was with me D. what wrong is with me 28.The trouble iswe are short of tools. A. what B. that C. how D. why that 29.It is possiblehe misunderstood _ I said. A. that; that B. what; what C. what; that D. that; what 30.The fact

33、he is an orphan is well known. A. what B. that C. which D. / 31. I was free that evening. A. It happened to B. It happened thatC. That happened D. It was happened that 32. in the newspaper that the Japanese Minister will arrive next Monday. A. It says B. It is said C. It has said D. He is said 33.Co

34、mrade Wang is to give us a talk on he saw and heard in Britain. A. what B. all what C. that D. which 34.The problem iswill go. A. that B. that who C. who D. whoever 35.nothing to do with us. A. What he did is B. What he has doneC. What did he do D. What he has done has 36.The reason isI missed the b

35、us. A. that B. when C. why D. what 37.That iswe were absent last time. A. that B. when C. why D. what 38. is announced, all the schools will reopen soon. A. It B. That C. As D. When 39. is announced that all the schools will reopen soon. A. It B. That C. Which D. As 40.She will giveneeds help a warm

36、 support. A. what B. which C. whoever D. whom 41. she needs is to have a good rest. A. That B. What C. Whoever D. The things what 42.They couldn t understandI refused. A. what B. why C. that D. where43. I am anxious to know iswe can visit the Museum. What; that B. What; whenC. That; where D. Where;

37、when 44. was lying. Those who told you that B. Anyone told you C. Whoever told you D. Whoever told you that 45.A man s worth lies not so much inhe has as in he is. A. that; what B. what; what C. that; that D. what ; that 46. shall finish the work before May Day is possible. A. What we B. That we C.

38、Because we D. We 47.I have not found my bike yet; in fact, I could have done with itI m not sure. A. where B. whether C. how D. what 48. It is doubtful _ he knows it or not. A. whether B. what C. when D. that 49. It was _ he said _ disappointed me most. A. what, that B. that, that C. what, what D. that, what 50. -I rang you at about ten, but there was no reply. -Oh, that was probably _ I was seeing the doctor. A. when B. why C. what D. that The answers: 1-5 BADAB 6-10 DCCAA 11-15 CACCC 16-20 CCDCB 21-25 ABBAA 26-30 BABDB 31-35 BBACD 36-40 ACCAC 41-46 BBBDB 46- 50 BBAAA