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名词性从句一．定义：在句子中起名词作用的句子叫名词性从句 (Noun Clauses）。
名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词性从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
1. His words are true. What he said is true.2. The dog sensed something good. The dog sensed that there was something good nearby.3. These are his words. These are what he said.4. My Maths teacher, Mr He, is a kind person. The news that the plane had crashed made us sad.二．引导名词性从句的连接词连词：在从句中不充当成分，只起连接作用 that, 无实义whether, if 是否as if \ as though 似乎，好像连接代词：有词义，在句中担任主语，表语，定语或宾语。
what, 什么 who, 谁whom, 谁，作宾语 whose, 谁的 which, 哪一个whatever, whoever……也可以引导。
连接副词：有词义，在句中担任状语。
when ,什么时候 where, 什么地方 why, 为什么 how ,怎么样how many, how much, how often三．主语从句1. 作句子主语的从句叫主语从句。
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。
That he is late for school makes the teacher very angry. 他上学迟到让老师很生气。
语法复习之名词性从句名词性从句相当于名词，可分别作主句的主语、表语、宾语和同位语。
因此，名词性从句厅分为主语从句、表语从句、宾语从句和同位从句。
（一）引导名词性从句的连接词1、连接代词：who, whose, whom, what, which。
有词义，在从句中担任成分，如主语、表语、宾语、或定语等。
2、连接副词：when, where, why, how。
有词义，在从句中担任成分，作状语。
3、连接词：that, whether, if, as if。
that 无词义，在从句中不担任成分，有时可省略；if (whether), as if虽有词义，但在从句中不担任成分。
注意：连接代词与连接副词在句中不再是疑问句，因而从句中谓语不用疑问式。
连接代词与连接副词在从句充当句子成分，连接词whether 和if（是否），as if（好象）在从句中不充当句子成分，只起连接作用。
根据句义，如果连接代词与连接副词，whether、if 和as if都用不上时，才用that作连接词（that本身无任何含义）。
（二）主语从句1、主语从句在复合句作主语。
e.g. Who will go is not important.2、用it作形式主语，主语从句放在句末。
e.g. It doesn’t matter so much whether you will come or not.3、that引导主语从句时，不能省略。
e.g. That he suddenly fell ill last week made us surprised.（三）表语从句1、表语从句在复合句中作表语，位于系动词之后。
e.g. The question was who could go there.2、引导表语从句的连接词that有时可省去。
e.g. My idea is (that) we can get more comrades to help in the work.（四）宾语从句1、宾语从句在复合句中作宾语。
高中英语名词性从句精讲从句是相对于主句而言的,即它是从属于某一个主句,而不能单独作一个句子。
在英语中,主要有三大从句,即名词性从句（包括主语从句,宾语从句,表语从句,同位语从句）、形容词性从句（即定语从句）、副词性从句（即状语从句,包括时间、条件、结果、目的、原因、让步、地点、方式等）。
在句子中起名词作用的句子叫名词从句(Noun Clauses）。
名词从句的功能相当于名词词组,它在复合句中能担任主语、宾语、表语、同位语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
引导名词性从句的连接词可分为三类：（1）从属连接：that, whether, if（不充当从句的任何成分）（2）连接代词：what, whatever, who, whoever, whom, whose, which.（3）连接副词：when, where, how, why名词性从句知识点汇总1名词性从句的分类名词性从句，包括四种从句，即主语从句、宾语从句、表语从句、同位语从句。
因为主语、宾语、表语、同位语这四种成分均可以由名词构成，所以这四种从句在主句中都充当了名词的作用，故将这四种从句统称为名词性从句。
如：1.That she will help me made us happy.（主语从句）2.I can understand what he said.（宾语从句）3.This is where I was born.（表语从句）4.The fact that a heavy earthquake happened made me crazy.（同位語从句）2名词性从句的连接词分类1.that（无含义，不充当成分）2.whether,if（有“是否”的含义，但不充当成分）3.连接代词：what, whatever, who, whoever, whom, whomever, whose, which, whichever.（在从句中做主语、宾语、表语和定语）连接副词：when, whenever, where, wherever, how, however, why （在从句中做状语）4. as if,as though,because（不充当成分，在名词性从句中只引导表语从句）3连接词 that 在名词性从句中可以省略的三种情况1.it 做形式主语，that引导主语从句时It is said (that) he has been studying abroad.据说他一直在国外学习。
2020 年高考英语写作新题型备考技巧专题（五）名词性从句+写作过渡词总结名词性从句，和定语从句和状语从句一样，是高中阶段句法的三座大山之一。
在书面表达中灵活运用名词性从句，能够使文章表达更为高级。
它主要包括主语从句、宾语从句、表语从句和同位语从句。
一．名词性从句的连接词1.从属连词引导的名词性从句that, whether, if 为名词性从句中的从属连词，它们在句中只起连接作用，不充当成分。
①. I trust that I am capable of doing the work well. (2019 全国一卷书面表达)②. There is no doubt that there is not any problem for me to communicate with foreigners. (2018 年浙江高考书面表达)③. To start with, what I intend to stress is that we are about to start our next lesson in Classroom 8of the teaching building. (2017 全国一卷书面表达)2.连接代词引导的名词性从句what, which, who, whom, whose, whatever, whoever, whomever, whichever 等名词性从句的连接代词不仅在从句中起连接作用，还要充当主语、宾语、表语、定语。
①.This is precisely what the British visitors are expecting. (2019 年浙江高考书面表达)②.What made Yue Fei most respectable was that he didn’t give up fighting for his nation even whenhe was wronged by some. (2016 北京高考书面表达)3.连接副词引导的名词性从句how, when, why, where, however, whenever, wherever 等连接副词在名词性从句中不仅起连接作用，也充当状语。
如有你有帮助，请购买下载，谢谢！高中英语系列讲座（五）名词性从句1. _____ she is a rich woman is known to all in the city.A. /B. ThatC. WhoD. Because2. My cousin asked me _____ I could lend him the Chinese novel.A. whetherB. /C. thatD. which3. The fact _____ he was successful proves his ability.A. thatB. whatC. whichD. why4. “What are you doing here, Joan?” Robert asked.A. Robert asked Joan: what she is doing there.B. Robert asked Joan what she was doing there.C. Robert asked her what was she doing there.D. Robert asked Joan she was doing what there.5._____ is a fact that English is being accepted as an international language.A. ThereB. ThisC. ThatD. It6. They have no idea at all _____.A. where has he goneB. which place he has goneC. where he has goneD. where did he go7. The reason he has been such a success______he never gives up.A. is becauseB. is whatC. is thatD. is8. _____ Mathematics is the base of all other sciences.A. This is becauseB. This is thatC. It is thatD. Because9. China is becoming stronger and stronger. It is no longer _____.A. what is used to beB. what it was used to beingC. what it used to beingD. what it was used to be10. The reason why he hasn't come is _____.A. because his mother is illB. because of his mother's being illC. that his mother is illD. for his mother is ill11. The man asked _____.A. what was going on thereB. what it was going on thereC. what's going on thereD. what going on there12._____ leaves the room last ought to turn off the light.A. AnyoneB. The personC. WhoeverD. Who13. It was possible, but not probable _____ manager of the firm.A. he will be electedB. he must be electedC. that he would be electedD. that he must be elected14. It’s uncertain _____ the experiment is worth doing.A. ifB. thatC. whetherD. how15. _____ I have will be yours sooner or later.A. No matter whatB. No matter whateverC. WhateverD. That16.I'll eat _____ you give me.A. no matter whatB. no matter whateverC. whateverD. what17. _____ I can’ t understand is _____ he wants to change his mind.A. That; thatB. Which; whatC. What; whatD. What; why18. I wonder how much _____.A. cost these shoesB. do these shoes costC. these shoes costD. are these shoes cost19. _____ I will accept the gift is none of your business.A. IfB. WhetherC. WhatD. Which20. We could see the tower clearly from _____ we were standing.A. whereB. thereC. whichD. it21._____ there is life on another planet is almost impossible.A. HowB. ThatC. WhyD. Whether22. The demand _____ the workers ask for higher wages seemed reasonable.A. whatB. thatC. whichD. when23. _____ was a well-known fact.A. That their team was weakB. That their team being weakC. Their team was weakD. If their team was weak24. Has it been announced _____ the planes are to take off?如有你有帮助，请购买下载，谢谢！A. whenB. whatC. whereD. who25. Nobody knew _____.A. where he comesB. where he was fromC. where he is fromD. where does he come from26. Father asked _____.A. what was wrong with meB. what’s wrong with meC. what wrong was with meD. what wrong is with me27. The trouble is _____ we are short of tools.A. whatB. thatC. howD. why that28. It is possible _____ he misunderstood ____ I said.A. that; thatB. what; whatC. what; thatD. that; what29. The fact _____ he is an orphan is well known.A. whatB. thatC. whichD. /30. _____ I was free that evening.A. It happened toB. It happened thatC. That happenedD. It was happened that31. _____ in the newspaper that the Japanese Minister will arrive next Monday.A. It saysB. It is saidC. It has saidD. He is said32. Comrade Wang is to give us a talk on _____ he saw and heard in Britain.A. whatB. all whatC. thatD. which33. The problem is _____ will go.A. thatB. that whoC. whoD. whoever34. _____ nothing to do with us.A. What he did isB. What he has doneC. What did he doD. What he has done has35. The reason is _____ I missed the bus.A. thatB. whenC. whyD. what36. That is_____ we were absent last time.A. thatB. whenC. whyD. what37. _____ is announced, all the schools will reopen soon.A. ItB. ThatC. AsD. When38._____ is announced that all the schools will reopen soon.A. ItB. ThatC. WhichD. As39. She will give_____ needs help a warm support.A. whatB. whichC. whoeverD. whom40._____ she needs is to have a good rest.A. ThatB. WhatC. WhoeverD. The things what41. They couldn’t understand _____ I refused.A. whatB. whyC. thatD. where42. _____ I am anxious to know is_____ we can visit the Museum.A. What; thatB. What; whenC. That; whereD. Where; when43. _____ was lying.A. Those who told you thatB. Anyone told youC. Whoever told youD. Whoever told you that44. A man's worth lies not so much in _____ he has as in_____ he is.A. that; whatB. what; whatC. that; thatD. what; that45._____ shall finish the work before May Day is possible.A. What weB. That weC. Because weD. We46. I have not found my bike yet; in fact, _____ I could have done with it I'm not sure.A. whereB. whetherC. howD. what47. The difficulty lies in _____ we have no money.A. thatB. whichC. the factD. the fact that48. He got the highest marks in the exam. It was all•__________ he has worked too hard.A. whyB. whichC. thatD. because49. Go and get your coat. It’s _______ you left it.A. thereB. whereC. there where •D. where there如有你有帮助，请购买下载，谢谢！50. The reason why he failed is _______ he was too careless. A. because B. that C. for D. because of讲座（五）名词性从句1-5 BAABD 6-10 CCAAC 11-15 ACCCC 16-20 CDCBA 21-25BBAAB26-30 ABDBB 31-35 BACDA 36-40 CCACB 41-47 BADBB 46-50 DD DBA。
