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1、-名词性从句讲解及专项练习习题及其解答-第 10 页名词性从句讲解一、名词性从句主语从句、表语从句、宾语从句、同位语从句，在整个句子中所起的作用，相当于一个名词。因此，这四种从句通称为名词性从句。引导名词性从句的连接词可分为三类： 连接词：that, whether, if （不充当从句的任何成分） 连接代词：what, whatever, who, whoever, whom, whose, which. 连接副词：when, where, how, why1. 主语从句作句子主语的从句叫主语从句。主语从句通常由从属连词that，whether，if和连接代词what，who，which，w
2、hatever，whoever以及连接副词how，when，where，why等词引导。that在句中无词义，只起连接作用；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当从句的成分。例如：What he wants to tell us is not clear. 他要跟我们说什么，还不清楚。It is known to us how he became a writer. 我们都知道他是如何成为一名作家的。Where the English evening will be held has not yet been announced. 英语晚会将在哪里举行，还没有
3、宣布。有时为避免句子头重脚轻，常用形式主语it代替主语从句作形式主语放于句首，而把主语从句置于句末。主语从句后的谓语动词一般用单数形式。常用句型如下：（1）It + be + 名词 + that从句（2）It + be + 形容词 + that从句（3）It + be + 动词的过去分词 + that从句（4）It + 不及物动词 + that 从句另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气“(should) +do”，常用的句型有：It is necessary (important, natural, strange, etc.) that It
4、is a pity (a shame, no wonder, etc.) that It is suggested (requested, proposed, desired, etc.) that2. 宾语从句名词句用作宾语的从句叫宾语从句。引导宾语从句的关联词与引导主语从句表语从句的关联词大致一样，在句中可以作谓语动词或介词及非谓语动词的宾语。1. 由连接词that引导的宾语从句由连接词that引导宾语从句时，that在句中不担任任何成分，在口语或非正式的文体中常被省去，但如从句是并列句时,第二个分句前的that不可省。例如：He has told me that he will go t
5、o Shanghai tomorrow. 他已经告诉我他明天要去上海。We must never think (that) we are good in everything while others are good in nothing. 我们决不能认为自己什么都好，别人什么都不好。注意：在demand、order、suggest、decide、insist, desire, demand, request, command等表示要求、命令、建议、决定等意义的动词后，宾语从句常用“（should）+ 动词原形”。例如：I insist that she (should) do her wo
6、rk alone. 我坚持要她自己工作。The commander ordered that troops (should) set off at once. 司令员命令部队马上出发。2. 用who，whom, which, whose, what, when, where, why, how, whoever, whatever, whichever等关联词引导的宾语从句相当于特殊疑问句，应注意句子语序要用陈述语序。例如：I want to know what he has told you. 我想知道他告诉了你什么。 She always thinks of how she can wor
7、k well. 她总是在想怎样能把工作做好。She will give whoever needs help a warm support. 凡需要帮助的人，她都会给予热情的支持。3. 用whether或if引导的宾语从句，其主语和谓语的顺序也不能颠倒，仍保持陈述句语序。此外，whether与if 在作“是否”的意思讲时在下列情况下一般只能用whether，不用if：a. 引导主语从句并在句首时；b. 引导表语从句时；c . 引导从句作介词宾语时；d. 从句后有“or not”时；e. 后接动词不定式时。例如：Whether there is life on the moon is an in
8、teresting question. 月球上有没有生命是个有趣的问题。 Everything depends on whether we have enough money. 一切要看我们是否有足够的钱。4. 注意宾语从句中的时态呼应，当主句动词是现在时，从句根据自身的句子情况，而使用不同时态。例如：he studies English every day. （从句用一般现在时）he studied English last term. （从句用一般过去时）I know (that) he will study English next year. （从句用一般将来时）he has stud
9、ied English since 1998. （从句用现在完成时）当主句动词是过去时态（could, would除外），从句则要用相应的过去时态，如一般过去时，过去进行时，过去将来时等；当从句表示的是客观真理，科学原理，自然现象，则从句仍用现在时态。例如：The teacher told us that Tom had left us for America 5. think, believe, imagine, suppose等等动词引起的否定性宾语从句中，要把上述主句中的动词变为否定式。即将从句中的否定形式移到主句中。例如：We dont think you are here. 我们认为
10、你不在这。I dont believe he will do so. 我相信他不会这样做。3. 表语从句在句中作表语的从句叫表语从句。引导表语从句的关联词与引导主语从句的关联词大致一样，表语从句位于连系动词后，有时用as if引导。其基本结构为：主语 + 系动词 + that从句。例如：The fact is that we have lost the game. 事实是我们已经输了这场比赛。 That is why he didnt come to the meeting. 那就是他为什么不到会的原因。It looks as if it is going to rain. 看上去天要下雨了。
11、需要注意的，当主语是reason时，表语从句要用that引导而不是because。例如：The reason why he was late was that he missed the train by one minute this morning 4. 同位语从句同位语从句说明其前面的名词的具体内容。同位语从句通常由that引导，可用于同位语从句的名词有advice、demand、doubt、fact、hope、idea、information、message、news、order、problem、promise、question、request、suggestion、truth、wis
12、h、word等。例如：The news that we won the game is exciting. 我们赢得这场比赛的消息令人激动。I have no idea when he will come back home. 我不知道他什么时候回来。The thought came to him that Mary had probably fallen ill. 他想到可能玛丽生病了。同位语从句和定语从句的区别： that作为关系代词，可以引导定语从句，充当句子成分，在从句中作宾语时可以省略； that引导同位语从句时，起连词的作用，没有实际意义，不充当句子成分，一般不能省略。 试比较下面
13、两个例句: I had no idea that you were here（that引导同位语从句，不能省略）Have you got the idea（that）this book gives you of life in ancient Greece？（that引导定语从句，作宾语，可以省略）名词性从句专项练习100题1. His success was because of _ he had been working hard.A. that B. the fact which C. the fact that D. the fact2. “Is Mary from New York
14、City” “I dont know _.”A. from what city does she come from B. from what city she comeC. what city does she come from D. what city she comes from3. _ makes mistakes must correct them.A. What B. That C. Whoever D. Whatever4. The reason why I didnt go to Shanghai was _ a new job.A. because I got B. bec
15、ause of getting C. I got D. that I got5. It worried her a bit _ her hair was turning grey.A. while B. that C. if D. for 6. Henry killed the dog. Ill ask him why _.A. did he do that B. he did thatC. he did D. he has done so 7. Have you seen Henry lately My boss wants to know _.A. how he is getting al
16、ong B. how is he getting alongC. what he is getting along D. what is he getting along8. It is generally considered unwise to give a child _ he or she wants.A. however B. whatever C. whichever D. whenever9. He asked me _ with me.A. what is the trouble B. what wrong wasC. what was the matter D. what t
17、rouble it is10. I am sure _ he said is true.A. that B. about that C. of that D. that what11. When and why he came here _ yet.A. is not known B. are not known C. has not known D. have not bee12. I wonder how much _.A. does the watch cost B. did the watch costC. the watch costed D. the watch costs13.
18、Mary is _ someone might recognize her.A. afraid of B. afraid about C. afraid that D. afraid for14._ is no reason for dismissing her.A. Because she was a few minutes late B. Owing to a few minutes lateC. The fact that she was a few minutes late D. Being a few minutes late15. They came to the conclusi
19、on _ by a computer.A. that not all things can be done B. because of not all things be doneC. being not all things can be done D. because not all things can be done16. Why the explosion occurred was _ the laboratory attendant had been careless.A. for B. because C. since D. that17. I dont doubt _ hell
20、 come.A. that B. if C. what D. whether18. “Why did you go to the wrong class, Mr. Wang”“Well, I forget _ I was supposed to go to.”A. which the room B. which room C. what was the room D. what room was it19. Output is now six times _ it was before liberation.A. that B. which C. what D. of which20. Mar
21、y: Helen is a mere washer woman, yet shes now buying a big house.Carol: Yes. Because shes always saved _.A. what little she earns B. how little she earnsC. for little she earns D. with little she earns21. _ surprised me most was _ such a little boy of seven could play the violin so well.A. Thatwhat
22、B. Whatthat C. Thatwhich D. Whatwhich22. We gave him _ help we could.A. which B. what C. that D. this23. She is pleased with what you have given him and _ you have told him.A. that B. which C. all what D. all that 24. Excuse me would you please tell me _ A. when the sports meet is taken place B. whe
23、n is the sports meet going to be heldC. when is the sports meet to begin D. when the sports meet is to take place25. Do you happen to know _ A. what size shoes he wears B. how big shoes he wearsC. what is the size of his shoes D. what number shoes are his26. This book will show you _ can be used in
24、other contexts.A. how you have observed B. how what you have observedC. that you have observed D. how that you have observed27. Where do you think _ A. has he gone B. has he been C. hes gone D. was he28. Do you know _ A. how many populations there are in the world B. how much population there is in
25、the worldC. how many the population of the world isD. what the population of the world is29. Would you go and see _ outside A. what to take place B. what Tom has happenedC. what is happening D. what the matter had been30. The subject of What is interesting is that I do not even know him. is_.A. what
26、 B. interesting C. What is interesting D. I31. _ I think he is Charles.A. Who do you think he is B. Do you think who he isC. Whom do you think he isD. Do you think who he is32. He didnt know which room _.A. they lived B. they lived in C. did they live D. did they live in33. The little boy ate _ his
27、mother gave him.A. that B. which C. whatever D. no matter what34. The city is no longer _. A. what it is B. that it used to be C. which it was D. what it used to be35. My parents used _ they had to get a new car for me.A. which B. that C. what D. all what36. _ we go swimming every day _ us a lot of
28、good.A. Ifdo B. Thatdo C. Ifdoes D. Thatdoes37. _ was the idea _ the wife thought of A. Whatthat B. Thatwhat C. Howwhy D. Whyhow38. _ did he tell his wife _ he wished to do A. Thatwhat B. Whatthat C. Wherewhich D. Whichwhere 39. One of the men held the view _ the book said was right.A. what that B.
29、that what C. that which D. which that40. I have no idea _ or not he has finished the work.A. if B. that C. whether D. which41. “Do you know _” “His father is a doctor.”A. what is his father B. who is his fatherC. what his father is D. who his father is 42. Is this _ we met each other two years ago A
30、. place B. place in which C. where D. place which43. It _ Bob drives badly.A. thinks that B. is thought what C. thought that D. is thought that44. We all know the truth _ there are air, water and sunlight there are living things.A. where B. wherever C. that D. that wherever 45. They discussed _ they
31、 could settle the problem without others help.A. if B. that C. what D. whether46. She asked _.A. what I was doing when she rang me up B. what was I doing when she rang me upC. when she rang me up what I was doing D. when did she ring me up what I was doing47. May I borrow the ring You can take _ you
32、 like.A. no matter what B. which C. whichever D. that 48. He said that he was fond of _.A. what beautiful is B. what is beautiful C. beautiful is what D. what it is beautiful49. He insisted that he _ in good health and _ to work there.A. was, be sent B. is, is sent C. be, was sent D. be, send50. Do
33、you know _ he expects will give us a talk A. who B. whom C. that D. whose51. Its uncertain _ the experiment is worth doing.A. if B. that C. whether D. how52. They would have fixed the telephone yesterday _ it was a holiday.A. except B. except for C. except that D. but for53. _ is to do good all ones
34、 life and never do anything bad.A. Whichever is hard B. No matter what is hardC. What is hard D. All what is hard54. _ the boy didnt take medicine made his mother angry.A. That B. What C. How D. Which55. As the day was fine, I made the suggestion _ for a walk in the park.A. we go B. we will go C. sh
35、ould we go D. that we go56. _ we cant get seems better than _ we have.A. What, what B. What, that C. That, that D. That, what57. _ you dont like him is none of my business. A. What B. Who C. That D. Whether58. You cant imagine _ when they received these nice Christmas presents.A. how they were excit
36、ed B. how excited they wereC. how excited were they D. they were how excited59. _ well go camping tomorrow depends on the weather.A. If B. Whether C. That D. Where60. _he really means is _he disagrees with us.A. What that B. That whatC. Why that D. If what61. _is going to do the job will be decided
37、by the Party committee.A. That B. Why C. How D. Who62. _ well finish translating the book depends on the time.A. When B. Why C. What D. That63. _ the house will be built will be discussed at tomorrows meeting.A. If B. Where C. That D. What64. _ he wont go there is clear to all of us.A. How B. What C
38、. Why D. This65. _ you come or not is up to you.A. What B. If C. Why D. Whether66. _ makes mistakes must correct them.A. Who B. Anyone C. Whoever D. Anybody67. _ team will win the match is a matter of public concern.A. Which B. That C. If D. How68.Three days later, word came _our country had sent up
39、 another man-made satellite.A. which B. when C. that D. where69.The problem is _will go to the meeting.A. why B. when C. what D. who70.It looks _ it were going to rain.A. even if B. as if C. even though D. like71.That is _ he likes the place so much.A. that B. what C. why D. how72.That is _ Lu Xun o
40、nce lived.A. what B. where C. that D. why73. We thought _ strange that Tom did not come yesterday.A. that B. it C. this D. what74.The fact _ she had not said anything surprised all of us.A. which B. what C. that D. how75.What Im considering now _ the money we need.A. is B. are C. were D. was76.Can y
41、ou tell me _ A. who is that gentleman B. that gentleman is who C. who that gentleman is D. whom is that gentleman 77. _leaves the room last ought to turn off the lights.A. Anyone B. The person C. Whoever D. Who78. It is well known _ a person eats causes changes in the body.A. that what, when, and ho
42、w B. thatC. what D. how79. The energy is _ makes the cells able to do their work.A. that B. which C. what D. such80. Jack was soon told _ he did was not necessary.A. why B. that C. how D. why what81. We should think carefully about _ Mr. Needham said at the meeting.A. that B. what C. which D. X82. C
43、an you point out _ two radios are the best A. which B. what C. that D. whether 83. You will easily know _ video recorders (录相机) are the same.A. what those B. that of those C. that all of D. which of those84. _ you have seen things like these before doesnt matter.A. If B. Whether C. What D. When 85. I asked her in English _ she was, and she told me _ s