名词性从句专项讲练

名词性从句讲解在复合句中起名词作用的从句叫做名词性从句。

它包括主语从句、宾语从句、表语从句和同位语从句。

名词性从句是中学阶段的一个重要语法项目，在历年的高考中几乎都涉及到，并且每年的命题各有变化。

分析历届高考试题名词性从句考查的焦点主要有以下六个方面1. 考查名词性从句的语序问题2. 考查引导词that与what的区别3. 考查it在名词性从句中作形式主语或形式宾语的用法4. 考查whether与if的区别5. 考查名词性从句中的疑问词+ever引导的名词性从句与no matter+疑问词引导的状语从句的区别6. 考查名词性从句的虚拟语气问题语法要点剖析一、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，whatever，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，还没有宣布。

第12讲名词性从句（模拟精练+真题演练）用适当的单词填空1. (2023年辽宁沈阳二中模拟预测).________seems clear, though, is that these tools are being put to use in some industries now.【答案】What【解析】考查主语从句。

句意：不过，有一点似乎很清楚，即这些工具现在正在/已经在某些行业中投入使用。

分析句子结构，此处是一个主语从句，且从句中缺主语，指事物，应用what引导，句首单词首字母大写，故填What。

2.(2023年福建龙岩·第一中学三模)The reason why human culture can be exchanged and spread is________ the civilization itself has deep value.【答案】that【解析】考查表语从句。

句意：人类文化之所以能够交流和传播，是因为文明本身具有深厚的价值。

空处引导表语从句，从句不缺少任何成分，且句意完整，应用无任何意义只起连接作用的that引导，故填that。

3.(2023年河南郑州统考三模)After the construction finishes, there will be at least two sea trials in the su mmer to test the ship, and also to check ________ the rooms and entertainment facilities (设施) are comf ortable.【答案】whether/if【解析】考查宾语从句。

句意：建造完成后，将在夏季进行至少两次海试，以测试船舶，并检查房间和娱乐设施是否舒适。

分析句子可知，空处需引导名词性从句作check的宾语，且空处表达“是否”的意思，应用连接词whether或if。

第21讲名词性从句题型一连接词的考查1.（广东省广东省四校联考2024年高三试题）The study doesn’t note these plant-based alternatives carry similar health risks or not.2.（湖南天壹名校联盟2024年高三大联考试题）She noted that cultural integration has always been a proposition (主张) of the Maltese government, and_____ cooperation between the two sides should be based on equality and mutual benefit in order to be sustainable.were getting infected themselves. Zheng said he wanted to do something to deal with this situation.7.（2024年重庆高三模拟预测）Analysis of cutting marks on some head statues led to the guess they may have been stolen about 30 years ago, considering some statues were cut and stolen from a Shanxi temple in an identical way in 1993.题型二连接代词what的考查silk” and “gentle as jade” perfectly show jade symbolizes in the minds of Chinese people.the famous bronze standing man, in Sanxingdui, an archaeological (考古) site located in Sichuan province.6.（2024年山东省高三一模试题）The essence of this “fancy rat-race” lies in the fact that various regional cultural tourism initiatives are targeted at the Spring Festival tourist boom, using hype to attract tourists and boost the local economies. But to attract more tourists, seems unwise is to rely merely on publicity and luxury strategies.7.（2024·湖北武汉·三模）An explosive mixture of gun-powder and chemical compounds (化合物) is 104 makes fireworks flash in pretty colours and fun shapes.年高三综测试题）Pavilion has attracted a growing young audience since its premiere in Beijing.题型三其它连接代词的考查one is better.3.（2023年湖南省雅礼十六校第一次联考）“Hello, Mr. Herriot.” I heard his voice. I turned a blank gaze on him — I just had no idea ____ ____ he was though his face was familiar.题型四其它连接副词的考查（江苏省镇江第一中学running on the plains are ____ we’re here-to observe Tibetan antelopes, which are being hunted, legally, for their valuable fur.3.（湖北省孝感市重点高中协作体2023-2024学年高三试题）Meanwhile, fans disagree on often one should wear the clothing, every day or on special occasions like festivals and weddings.4.（2023年北京交通大学附中高三练习）Chinese New Year is a celebration marking the end of the winter season and the beginning of spring. This is________ decorating with plants, fruits and flowers carries special significance.5.（江苏省苏州中学校2023-2024学年高三试题)This was typically Huang Quande, fisherman-turned-photo model, looked in his photos with tourists from China and abroad.6.（2023·重庆二检）Live big and try to let your courage outweigh your fear. You never know__________it might lead you in the life journey.题型语法填空Passage 1 （2024·江苏镇江·三模）阅读下面短文，在空白处填入1个适当的单词括号内单词的正确形式。

名词性从句专讲专练I．引导词A．连词：that (没有实在意义，不充当句子成份)whether （是否，不充当句子成份，可以引导各类名词性从句，一般可以和or, or not 连用）if （是否，不充当句子成份，引导宾语从句。

注意：它还可以引导条件状语从句，表“如果”）as if （好像，可引导表语从句。

注意：它还可以引导方式状语从句。

）because (因为，可引导表语从句。

它还可以引导原因状语从句。

)B．连接代词：who （谁，在从句中作主语、表语）whom （谁，在从句中作宾语、表语）whose （谁的，在从句中作定语）what （在从句中充当主语、宾语、表语时泛指事物，没有具体的含义，但作定语时可以翻译为“什么”；另外，它还可以用来询问“价格，人口等”，表示“多少”）which （哪一个/些，在从句中充当宾语和定语，一般强调在某一范围内的（哪个//些….）whoever (无论谁，在从句中作主语、表语)whomever (无论谁，在从句中作宾语)whosever （无论谁的，在从句中作定语）whatever （在从句中充当主语、宾语、表语和定语时可以翻译为“无论什么”）whichever （无论哪一个/些，一般在从句中充当宾语、和定语，而且强调在某一范围中的“无论哪一个/些”）C．连接副词：(注意：所有的连接副词在从句中都是充当状语)when （什么时候）where （哪里/在某处）why （为什么）how （1、多么，后接形容词或副词；2、怎么样，如何，修饰动词，说明动作实行的方式）how many （多少，后接可数名词）how much （多少，接不可数名词）how long （多长，指时间，回答可用“for+一段时间”）how far （多远，指路程或距离）how soon （多快，指时间，回答可用“in+一段时间”）how fast (多快，指速度)however （1、无论多么，后接形容词或副词；2、怎么样，如何，修饰动词，说明动作实行的方式）wherever (无论哪里)whenever （无论何时//什么时候）Cf. no matter howno matter whereno matter when只能引导让步状语从句II. 各类名词性复合句的句型结构特点：A．主语从句：主语从句+ 主句的谓语动词+ （宾语）+ 状语或其他That he failed the math exam surprised all of us.That you joined us made all of us happy.That he didn’t care for money was a lie.Whether we’ll go out for an outing depends on the weather.What he did added to our difficulty.What surprised everybody was that he didn’t come to the meeting.B．宾语从句：a. 主句的主语+主句的谓语动词（vt. // vi. +prep./adv.）+宾语从句The manager came out to see what was the matter.Have you decided which subject you are going to choose?He asked me how soon we would finish the work.We have to find out whose fault it was.b. 主句的主语+主句的谓语+其他+ 介词+宾语从句The importance of bringing in new machines lies in that they can help to produce more clothes.The soldiers stood there still except that his lips were moving.What we eat now is very different from what we used to eat.Finally they decided to settle in what is called New England now.Give the book to whomever you meet in the classroom.I know nothing about whether Mr. Smith’s operation had been successful.C．表语从句：主句的主语+主句的谓语动词be //link v. +表语从句The question is whether our meeting should be put off.He is a lazy boy and that is why he is always late for school.D．同位语从句：抽象名词+ 同位语从句（一般用that引导-----陈述语气）常见的抽象名词有：truth fact news information idea viewpoint have an idea陈述语气have no idea-疑问语气problem question belief faith order command request requirement demand suggestion advice proposal insistence fear hope wishThe question whether he will come or not is not settled.Do you have any idea when he will set off?I didn’t know the fact that he was angry until you told me.Nothing can change his faith that he can be a very successful man in the near future.The idea that we try again is a good one.III. 各类从句的特定句型：1）主语从句：用it 作形式主语的句型a.It + be + adj.//n. +主语从句** It is natural // important // necessary // surprising // strange // funny + that 引导的主语从句，从句的谓语动词可以用(should) + do // be done 的形式It is natural that we should learn English well.It is important that we (should) keep the balance of nature.It is natural that you (should) forget it first.It is strange that you (should) say no.b.It + be + V.(p.p.) +主语从句It is requested that Miss Wang (should) give a speech at the meeting.It is suggested that we (should) have a meeting next week.It is ordered that we (should) go to the place where we are needed best.c.It (so) + happened +主语从句It so happened that I was at the spot at that time.It happened that I was out that day.d.It + matters //mattered (much//little) +主语从句It matters much whether you are determined or not if you want to succeed.e.It + doesn’t//didn’t matter +主语从句It doesn’t matter whether we have money or not..f.It + seems//seemed (to sb) + adj.//n. + 主语从句It seems to me quite strange that he should be so rude to his classmates.g.It + depends +主语从句It depends whether we can do it with fewer workers and less money.h.It is no wonder + that主语从句It is no wonder that he got high marks in the exam.It is no wonder that you misunderstood him.i.It makes no // little // great … difference +主语从句It won’t make any difference whether she will accept the invitation or not.It made great difference whether he would come to my birthday party or not. 主语从句翻译题目翻译练习1．(谁将去接他)_____________ is not decided.2．(哪个班极会赢得这场足球赛)________ is not clear so far.3．(他能否买到飞机票)________________ doesn’t matter much.4．(我们如何去那里)_________________ is a question.5．(你刚才告诉我的)________________ was really a surprise.6．(他什么时候出国)_________________ is being discussed7．(他为什么哭)_________________ is not clear.8．It is clear__________(他是一个乞丐).9．(你要请谁)_____________ is not important.10.(我们将在哪里举行篮球赛)__________________ is not clear.答案1．who will pick him up is not decided.2．which class will win the match is not clear so far.3．whether he can buy the ticket for plane doesn’t matter much.4．how we will go there is a question.5．what you told me just now was really a surprise.6．when he will go abroad is being discussed7．why he cries is not clear.8．It is clear that he is a beggar9．who you will invite is not important.10．where the basketball will be held is not clear.Ⅰ．选择题：1. _____ as much as one-fifth of all timber harvested is not used.A. The estimateB. The estimateC. They are estimatedD. It is estimated that2. _____ some mammals came to live in the sea is not known.A. WhichB. SinceC. AlthoughD. How3. _____ we have achieved is attributed to the guidance of our parents.A. WhoeverB. WhateverC. HoweverD. That4. _____ wealthy does not necessarily mean that a man is greedy.A. For the reason that he isB. Just because he isC. The reason of beingD. That he is5. Although _____ happened in this developed country sounds like science fiction, it could occur elsewhere in the world.A. whichB. whatC. howD. it6. _____ she had forgotten to take her notebook.A. That occurred to herB. She occurred thatC. To her that occurredD. It occurred to her that7. I am sure that _____ she said is wrong.A. whichB. allC. thisD. what8. We lost our way in the forest, and _____ made matters worse was that it was getting dark.A. thatB. whichC. itD. what9. _____ some mammals came to live in the sea is not known.A. WhichB. SinceC. AlthoughD. How10. _____ or not is still uncertain.A. He’s comingB. If he is comingC. That comingD. Whether he’s coming2）宾语从句：用it 作形式宾语的句型a.make// find// feel // think // consider // believe // suppose + adj. // n. +宾语从句I never believe it true that he is dishonest.I think it wrong that the young don’t respect the old.You’d better make it clear that you are only a boy.Do you think it a pity that she can’t come to our party?b. 主句的主语+ 主句的谓语+ it +宾语从句I hate it when people speak with their mouth full.I dislike it when he spoke to me like that.Never depend on it that God will help you.Why don’t you bring it to his attention that you are too busy to do it?1.It depends on +宾语从句2.主句的主语+ 主句的谓语+ it +宾语从句I heard it said that he was killed in the battle.1．Can you see________A. what he’s readingB. what is he readingC. what does he readD. he reads what2．Does Jack come from Japan? Do you know?(合并成一个句子)Do you know_____Jack _____from Japan3．_What did your son say in the letter_He told me that he___ the Disney would the next dayA.will visitB. has visitedC. is going to visitD. would visit4．He didn’t know__________A.what’s the matterB.what the matter isC. what was the matterD. what the matter was5．Somebody called you just now,but I didn’t know____A.who were theyB. who they wereC. who was itD. who it was6．I want to know_____A.what is his nameB. what’s his nameC. that his name isD. what his name is7．---Could you tell me ___she is looking for---Her cousin,susan.A.thatB.whose C .who D.which8．---What are you searching the Internet for---I’m trying to find out____.A.What is the difference between SARS and BIRDFLUB.How many persons have died in IraqC.How to protect our environmentD.Why is our Chinese team be able to beat Korea9．Do you know___________?(谁正在唱歌)10．Do you know___________?(她正在和谁谈话)11．Do you know___________?(昨天发生了什么事)The keys: 1 A.2 if,comes.3D. 4 D. 5 D. 6 D. 7 C. 8 B9 who is singing10 who she is talking with11 what happened yesterday3）表语从句：a.It looks/looked as if-clauseIt looks as if // as though someone were running after her now.It looks as if // as though she were two years younger today.It looks as if // as though she hadn’t done that at all.It looks as if // she would live another 100 years.b.It seems//seemed that-clauseIt seems that he is very disappointed.c.It appears//appeared that-clauseIt appeared that he could do everything possible to help the poor.d.That’s//This is +表语从句That is what I wanted to say to you.e.It is because…If you asked me why I fired you, I would say that it was all because you were as lazy as a pig.1. — Where is Jack?— He is ____ you told him to go.A. whereB. whichC. whatD. 不填2. The difficulty we now meet with is ____ we can persuade him to tell the truth.A. whetherB. thatC. whatD. how3. America was ____ was first called “India” by Columbus.A. whatB. whereC. the placeD. there4. After ten years, he changed a lot and looked different from ____ he used to be.A. thatB. whomC. whatD. who5. The main facts in human life are five: birth, food, sleep, love and death. One could increase the number —add breathing for instance — but these five are the most obvious. Let us ask ourselves ____ our lives.A. they play in what partB. they play what part inC. what part they play inD. in what part they play6. My hometown is quite different from ____ before.A. that it wasB. it wasC. what it wasD. which it was7. ____ is ____ the students to find out the meaning and the usage of new words.A. What a dictionary does; helpB. What dictionary does; to helpC. How a dictionary does; helpD. All that a dictionary does; helps8. ____ is worth doing at all is worth doing well.A. WhateverB. WhoeverC. However itD. Whatever it9. You can choose ____ book you like among these.A. no matter whatB. whateverC. whoseD. whichever10. You can take ____ much you want and ____ you want to.A. Whatever; whenB. Whenever; howeverC. however; whateverD. however; whoever11. Was it at the very beginning ____ Mr. White made the decision ____ we should send more fire’fighters there?A. when; whichB. that; thatC. when; soD. where; what12. ____ a plan to deal with it is important.A. What we should work outB. We should work outC. That we should work outD. That what we should work out13. ____ the boss said at the meeting isn’t true astonished all of us.A. ThatB. WhatC. What thatD. That what14. ____ comes back first is supposed to win the prize.A. AnybodyB. WhoC. WhoeverD. No matter who15. The reason ____ I plan to go is ____ she will be disappointed if I don’t.A. that; becauseB. why; thatC. why; becauseD. that; for16. — I fell off my horseback and broke my leg yesterday.— Is that ____ you drank too much?A. whyB. howC. becauseD. when本章补充强化训练题参考答案1.A2.D3.B4.C5.C6.C7.A8.A9.D 10.C11.B 12.C 13.D 14.C 15.B 16.C4) 同位语从句：a. have no idea +同位语从句Sorry, I really have no idea where she lives.Have you any idea when she is leaving for Beijing?b. have an idea + that引导同位语从句I have an idea that she won’t leave me whatever happens.c. there is no need// no doubt + that引导同位语从句There is no need that you worry about his safety, you see, he is a big boy now.There is no doubt that he is devoted to you.d. there is (great) doubt + 同位语从句There is great doubt who have stolen the car .e. Word came +that引导同位语从句(为了使句子结构更加平衡，抽象名词作主语而后面接有一个同位语从句时，往往把同位语从句后置。

名词性从句精讲精练一、识别从句1. What I want to do is taking a bath. 2. I don’t think he is an honest boy.3. The fact is that he stole the car.4. It is said that they won the game.5. Do you know the man who is standing over there?二.名词性从句包括：1.That he will come is certain. 2.I know that he will come.3. The truth is that I have been there.4. The fact that she was late surprised us.三. 引导名词性从句的连接词可分为三类：连接词：that, whether, if; as if（好像；似乎）; as though (不做成分）连接代词：what, whatever, who, whoever, whom, whose, which. 成份______________________连接副词：when, where, how, why; whenever; wherever_____________________________考点：1.that 和what 的区别1.________he wants is a book.2._____he doesn’t like me is none of your busi ness.3.The result is _____ he won the game.2.其它连接代词和副词的连用主要根据名词性从句中的具体意义,正确的选择who、what, which、when、where、why、how 等连接词，这些连接词既具有疑问含义，又起连接作用，同时在从句中充当各种成分。

名词性从句专练（一）1. Nowadays consumers become more and more practical and buy only _______ they need.A. whereB. whichC. whenD. what2. She’d like to offer money to ________ needs it to continue his or her study.A. whoB. whomC. whoeverD. whomever3. ---If you are admitted to a key university, _________ as a prize?--- I’m looking for a cell phone.A. What you expect your father will offer youB. Do you expect what your father will offer youC. What do you expect will your father offer youD. What do you expect your father will offer you4. Yesterday he sold out all his stamps at ____ he thought was a reasonable price.A. thatB. whichC. whatD. as5. Generally speaking, ____ we have seen seems more believable than ____ we havebeen told.A. what; thatB. what; whatC. that; whatD. that; that6. After three days’ waiting, there was a little doubt in the mother’s mind _______ thepolice could find her lost child.A. howB. thatC. whereD. whether7. “Sustainable development” is a question _______ we can continue developing theworld without damaging the environment.A. whyB. whenC. thatD. how8. We’d like to do _______ we can _________ the poor.A. how; helpB. all; to helpC. whatever; helpD. however; to help9. My parents used ________they had to get a new car for my brother.A. whichB. all whatC. whatD. 不填10. She was so angry at all ________ he was doing _________ she stayed up allnight.A. that; thatB. that; whichC. what; thatD. what; as11. After _________ seemed ages, the newsman disclosed the facts.A. thereB. whichC. whatD. that12. Our school is no longer _________ it was 10 years ago, _________ it was not well equipped.A. what; whichB. that; whichC. what; whenD. that; where13. Our bad living habits will destroy the earth. Only by changing ________we live can we save the earth.A. thatB. whatC. howD. where14. Thinking that you know _________ in fact you don’t is a serious mistakeA. whatB. thatC. whenD. however15. Energy is _________ makes things work.A. whatB. everythingC. somethingD. anything16. One of the men held the view __________the book said was right.A. that whatB. what thatC. thatD. whether17. I think that this meal was well worth ________ was charged for it.A. thatB. whatC. whichD. how many18. Do you think the reason ________ he gave is believable?A. for whichB. whichC. whyD. what19. Although he knew little about the large amount of work done in the field, hesucceeded ________ other more well-informed experimenters failed.A. whichB. thatC. whatD. where20. Although Anne is happy with her success she wonders________ will happen toher private life.A. itB. thatC. whatD. this21. The news has spread all over the country ________ the spaceship succeeded inreturning to the earth.A. thatB. whichC. whetherD. what22. You can choose ________ book you like among these.A. no matter whatB. whateverC. whoseD. whichever23. Is this research center ________ we visited the modern equipment last year?A. whereB. thatC. the oneD. which24. Loulan city is not at all _______a traveler who has never seen the desert before can expect.A. whatB. that C .which D. where25. What the doctor is uncertain about is ______ my mother will recover from the serious disease soon.A. whenB. howC. whetherD. why26. We should buy our daughter a computer in ______ it can help to improve her English.A. whichB. thatC. whatD. whom27. I wish to have a friend with ______ shares my hobbies and interests.A. whomeverB. no matter whoC. whoeverD. anyone28. Why don’t you bring _______ to his attention that you are too busy to do it.A. thisB. whatC. thatD. it29. The task required _______ did it ______ careful and brave enough.A. who; isB. whom; wasC. whomever; wereD. whoever; be30. We wrote a letter of thanks to _______ had helped us.A. whoB. thoseC. whomD. whoever31.--- What are you anxious about?--- ___________.A. Whether we can succeedB. If we succeedC. Do you succeedD. That we can succeed32. I just don’t understand_______ that prevents so many Americans from being as happy as one might expect.A .why it does B. what it does C. what it is D. why it is33. ---I rang you at about ten, but there was no reply.---Oh, that was probably _________ I was seeing the doctor.A. whenB. whyC. whatD. that34. I kept this picture ________ I can see it every day as it reminds me of my university days.A. in whichB. whereC. whenD. whether35. ---I can’t find Mr. Smith .Where did you last see him this morning?---It was in the hotel _______ he stayed.A. thatB. whereC. whichD. since36. You should keep those old jam bottles ----you never know ______ you might need them.A. whenB. how.C. what D .where37. ---Do you have anything in mind ______you’d like for supper ?---Well, ______will do for me.A. which, everythingB. that, anythingC. what, whateverD. that, either38. After five hours’ drive, they reached _____ they thought was the place they’d been dreaming of .A. thatB. whatC. whichD. where39. It is recommended that the project ___ until all the preparations have been made.A. is not startedB. not be startedC. will not be startedD. is not to be started40.______ has finished the work ahead of time will be rewarded though we don't know who it will be.A. Those whoB. AnyoneC. WhoeverD. No matter who41. ______ makes the school famous is ______ more than 90% of the students have been admitted to universities.A. What; becauseB. That; becauseC. That; whatD. What; that42. Everything depends on _____ they will support you about it.A. ifB. whichC. whetherD. that名词性从句专练（二）43. After ten years, she changed a lot and looked different from___ she used to be.A. thatB. whomC. whatD. who44. I know nothing about the young lady--- ______ she is from Being.A. exceptB. except forC. except thatD. besides45. The question came up at the meeting _____we had enough money for our research.A. thatB. whatC. whichD. whether46. __________ a terrible storm would take place in Hainan.A. Word came whichB. Word came thatC. Word that cameD. Words came that47. _________ David says sounds right to Helen. That’s why she has made up her mind not to leave him________ happens.A. whatever; whateverB. No matter what; whateverC. No matter what; no matter whatD. Whatever; however48. Mr. Hopkins has not yet answered my question________ I can go with him to ________ he calls the Underground Treasure House next week.A. that; whichB. that; whereC. whether; thatD. whether; what49. --- Don’t you believe me?--- ________, I will believe _________ you say.A. No; whateverB. Yes; no matter whatC. No; no matter whatD. Yes; whatever50. __________ is mentioned above, the number of the students in senior high school is increasing.A. WhichB. AsC. ThatD. It51. See the flags on top of the building? That was ______ we did this morning.A. whenB. whichC. whereD. what52. “What did your parents think about your decision?”“They always let me do ______ I think I should.”A. whenB. thatC. howD. what53. “Could you do me a favor?”“It depends on ____ it is.”A. whichB. whicheverC. whatD. whatever54. There is much chance ____ Bill will recover from his injury in time for the race.A. thatB. whichC. untilD. if55. ______ makes this shop different is that it offers more personal services.A. WhatB. WhoC. WhateverD. Whoever56. Mary wrote an article on _______ the team had failed to win the game.A. whyB. whatC. whoD. that57. The poor young man is ready to accept _______ help he can get.A. whicheverB. howeverC. whateverD. whenever58. As soon as he comes back, I’ll tell him when ______and see him.A. you will comeB. will you comeC. you comeD. do you come59. ______ in the regulations that you should not tell other people the password of your e-mail account.A. What is requiredB. What requiresC. It is requiredD. It requires60. Elephants have their own way to tell the shape of an object and _______ it is rough or smooth.A. 不填B. whetherC. howD. what61. The way he did it was different _______ we were used to.A. in whichB. in whatC. from whatD. from which62. Great changes have taken place in that school. It is no longer ____ it was 20 years ago, ______ it was so poorly equipped.A. what; whenB. that; whichC. what; whichD. which; that63. Danby left word with my secretary ________ he would call again in the afternoon.A. whoB. thatC. asD. which64. “Don’t you think it necessary that he _______ to Miami but to New York?”“I agree, but the problem is ________ he has refused to.”A. will not be sent; thatB. not be sent; thatC. should not be sent; whatD. should not send; what65. Some researchers believe that there is no doubt ________ a care for AIDS will be found.A. whichB. thatC. whatD. whether66. The old lady’s hand shook fr equently. She explained to her doctor ________ this shaking had begun half a year before, and ______, only because of this, she had been forced to give up her job.A. when; howB. how; whenC. how; howD. why; why67. Do you have any idea _______ is actually gong on in the classroom?A. thatB. whatC. asD. which68. I want to know ________ the thief was caught on the spot.A. whichB. thatC. whatD. whether69. Our club is open to adults only. _______ your children have entered without permission.A. There seems thatB. It seems to beC. There seems to beD. It seems that70. You are saying that everyone should be equal, and this is ________ I disagree.A. whyB. whereC. whatD. how71. The road is covered with snow. I can’t understand _______ they insist on going by motorbike.A. whyB. whetherC. whenD. how72. We cannot figure out _______ quite a number of insects, birds, and animals are dying out.A. thatB. asC. whyD. when73. The Foreign Minister said, “_______ our hope that the two sides will work towards peace.”A. This isB. There isC. That isD. It is74. A story goes _______ Elizabeth 1 of England liked nothing more than being surrounded by clever and qualified noblemen at court.A. whenB. whereC. whatD. that75. I have al ways been honest and straightforward, and it doesn’t matter ____ I’m talking to.A. who is itB. who it isC. it is whoD. it is whom76. The other day, my brother drove his car down the street at ________ I thought wasa dangerous speed.A. asB. whichC. whatD. that77. After Yang Liwei succeeded in circling the earth, ______ our astronauts desire to do is walk in space.A. whereB. whatC. thatD. how78. Along with the letter was his promise _______ he would visit me this coming Christmas.A. whichB. thatC. whatD. whether79. A modern city has been set up in ________ was a wasteland ten years ago.A. whatB. whichC. thatD. where80. I think father would like to know ________ I’ve been up to so far, so I decide to send him a quick note.A. whichB. whyC. whatD. how81. Parents are taught to understand ________ important education is to their children’s future.A. thatB. howC. suchD. so82.It is pretty well understood _________ controls the flow of carbon dioxide in and out the atmosphere today.A. thatB. whenC. whatD. how83. ---Are you still thinking about yesterday’s game?---Oh, that’s _________.A. what makes me feel excitedB. whatever I feel excited aboutC. how I feel about itD. when I feel excited84. There is a new problem involved in the popularity of private cars _________ road conditions need ________.A. that; to be improvedB. which; to be improvedC. where; improvingD. when; improving85. _________ made the school proud was __________ more than 90% of the students had been admitted to key universities.A. What; becauseB. What; thatC. That; whatD. That; because86. There’s a feeling in me _______ we’ll never know what a UFO is –not ever.A. thatB. whichC. of whichD. what87. Perseverance is a kind of quality—and that’s ____ it takes to do anything well.A. whatB. thatC. whichD. why88. ---I think it’s going to be a big problem.---Yes, it could be.---I wonder _________ we can do about it.A. ifB. howC. whatD. that89. __________ fashion differs from country to country may reflect the cultural differences from one aspect.A. WhatB. ThatC. ThisD. Which90. When you answer questions in a job interview, please remember the golden rule: Always give the monkey exactly __________ he wants.A. whatB. whichC. whenD. that91. A computer can only do __________ you have instructed it to do.A. howB. afterC. whatD. when92. Information has been put forward __________ more middle school graduates will be admitted into universities.A. while B that C. when D. as93. I read about it in some book or other. Does it matter ___________ it was?A. where B what C how D. which94. Little Tommy was reluctant to tell the schoolmaster____ he had done the day before.A. that B how C. where D .what95._________ she couldn’t understand was __________ fewer and fewer studentsshowed interest in her lessons.A. What; whyB. That; whatC. What; becauseD. Why; that96. Someone is ringing the doorbell. Go and see _________.A. who is heB. who he isC. who is itD. who it is97. These wild flowers are so special I would do __________ I can to save them.A. whateverB. thatC. whichD. whichever98. It was a matter of __________ would take the position.A. whoB. whoeverC. whomD. whomever99. _________ we’ll go camping tomorrow depends on the weather.A. IfB. WhetherC. ThatD. Where100. It worried her a bit _________her hair was turning grey.A. whileB. thatC. ifD. for名词性从句练习100题---答案1 DCDCB;10DDBCA11 CCCAA;20ABBDC21 ADAAC;30 BCDDD31 ACABB;40 ABBBC41 DCCCD; 50 BADDB51 DDCAA;60 ACACB61 CABBB;70 CBDDB71 ACDDB;80 CBBAC81 BCAAB;90 AACBA91 CBDDA;100 DAABB11。

考点08名词性从句（核心考点精讲精练）【近年真题考点分布】【思维导图】【知识梳理】➢考点一：宾语从句1．宾语从句的引导词She asked me whether I had returned the books to the library，and I admitted that I hadn't.她问我是否把书还给图书馆了，我承认我还没有还。

Our teacher always tell us to believe in what we do and who we are if we want to succeed.我们的老师总是告诉我们，如果我们想成功的话，就要相信我们所做的事情以及我们自己。

宾语一般放在及物动词或介词之后，但是，在下列情况下，须用it作形式宾语，而将真正的宾语(常为不定式/从句)后置。

(1)动词find/feel/think/consider/make＋it＋宾补(形容词或名词)＋不定式/从句(2)动词hate/ like/ dislike/ appreciate/enjoy＋it＋从句(3)短语动词see to/ depend on/rely on＋it＋从句(4)固定搭配take it for granted that/owe it to sb.that＋从句No matter where he is，he makes it a rule to go for a walk before breakfast.无论他在哪里，他都定了一个规矩——早餐前散步。

I shall see to it that he is taken good care of when you are absent.你不在的时候，我负责把他照顾好。

I think it necessary that we take plenty of boiled water every day.我认为我们每天多喝白开水是有必要的。

高中英语名词性从句详细讲解与练习在句子中起名词作用的从句叫名词性从句。

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，因此根据它在句中不同的语法功能，名词性从句又可分为主语从句、宾语从句、表语从句、同位语从句。

引导名词性从句的词叫做连接词，包括：1.连词（在名词性从句中只起连接作用，不作成分）2.连接代词（在名词性从句中作主语、宾语或表语）3.连接副词（在名词性从句中作状语）所有的名词性从句的语序都是陈述语序。

I主语从句：是在主句中作主语的从句。

它由连接词引导，通常位于谓语动词之前。

连接词：1.连词：在从句中不充当任何成分，常见的引导主语从句的连词有that, whether oThat he got the first prize excited him much.他获得一等奖一事使他非常兴奋。

It is doubtful whether we can get there on time.我们能否按时到达那儿还不确定。

D that引导的主语从句:在从句中不作任何成分，也没有实际意义。

一般情况下that不可省略。

That light travels in straight lines is known to all.众所周知，光沿直线传播。

That you don't like him is none of my business.你不喜欢他不关我的事。

2）whether引导的土语从句:常置于句首，表示“是否”之意；if一般不引导主语从句。

Whether he can finish his task on time is of greatimportance.他是否能按时完成任务非常重要。

Whether you can succeed or not depends on howhard you work at it.你能否成功取决于你努力的程度。

2.连接代词：在从句中起名词或代词的作用，常作从句的主语、宾语、表语或定语,有具体意义且不能省略。

1.They lost their way in the forest and _____ made matters worse was that night began to fall.A. thatB. thisC. whatD. which2.—I saw your neighbor break your window with a basketball.-- _______ it made me nearly mad.A. That he brokeB. What he brokeC. He brokeD. His break3.______ you go or stay at home won't make any difference.A. IfB. WhenC. ThatD. Whether4. Is _____ you told me really true?A. whatB. whichC. thatD. when5. It’s well known ______ the ear th moves round the sun.A. whenB. whyC. whatD. that6.________ knowledge comes from practice is known to all.A. WhatB. WhereC. IfD. That7.____ is known to all that WTO stands for World Trade Organization.A. WhichB. WhatC. AsD. It8. ____he doesn't like them is very clear.A. WhatB. ThatC. WhichD. Where9. It is no longer a question now ________ man can travel in space.A. whichB. thatC. whetherD. what10．The question is ______ the film is worth seeing.A. ifB. whetherC. whatD. how11．This is ______.A. how did they get to the cityB. what did they get to the cityC. how they got to the cityD. what they got to the city12. It looks ______ it's going to rain.A. thatB. asC. as ifD. that13. The problem is not ___ we leave, but ____ we can get there.A. when; howB. when; whereC. how; whichD. where; when14. What I asked him is ____ the story happened.A. when and whatB. what and whereC. which and whereD. when and where15. The reason for his success is _______ he worked hard.A. whyB. thatC. becauseD. for16. The truth is ___ he doesn't work hard enough.A. whyB. whatC. thatD. which17. The reason why he was late was ____ he had taken a wrong bus.A. becauseB. whetherC. because ifD. that18. Einstein’s most famous theory is ____ we call the Theory of relativity.A. whatB. thatC. whichD. /19. To tell you the truth, this is _____ in the world.A. which I haveB. that I haveC. what I haveD. whether I have20. Part of the reason Charles Dickens loved his own novel , David Copperfield, was _______ it was rather closely ________ it was rather closely modeled on his own life.A. whatB. thatC. whyD. whether21. This museum is not ______ it was ten years ago.A. thatB. whenC. whichD. what22.—Are you still thinking about yesterday’s game? —Oh，that’s ____.A. what makes me feel excitedB. whatever I feel excited aboutC. how I feel about itD. when I feel excited23.The mountain is no longer ________it used to be.A. whichB. thatC. asD. what24. Do you doubt ________ I believe you?A. thatB. whichC. whetherD. if25. I know nothing about the accident but ________ a car ran over a small boy.A. howB. thatC. whenD. why26. Nobody but Jim and his uncle _____.A. know who is heB. know who he isC. knows who is heD. knows who he is27. I didn't know what _____.A. was the matterB. is the matterC. matter wasD. the matter is28. We have plenty of books here. You may take _____ you like .A. in whichB. from whichC. whicheverD. that29. It depends on ______ we have enough time.A. ifB. weatherC. if or notD. whether30. – How do you like the address Hu Jintao delivered at the Asian APEC in 2009?-- Great. I take ______ that he spoke of the physical security measures.A. allB. itC. oneD. this31. I want to buy some stamps. Can you tell me _____ near here?A. if there's a post officeB. is there a post officeC. where is the post officeD. whether is there a post office32. What we have seen is different from _______.A. we heardB. we have heardC. what we heardD. what we have heard33. I couldn't agree with _____ at the meeting.A. that you saidB. which you saidC. all what you saidD. what you said34. He was lucky enough to sell his car for exactly ______.A. where he had paid for itB. what he had paid for itC. what he was paid for itD. which he had paid for it35. We are asked ___ we think the likely result of an action will be.A. thatB. whatC. whichD. whether36. We know little about the young lady except ________you told me.A. whatB. thatC. howD.不填37. I know nothing about her except ________she is from Canada.A. howB. whenC. thatD. why38. We were all very worried over the fact _____ you were ill.A. thatB. whatC. whichD. about which39. The news ____ Lincoln was murdered filled the Ameri can people’s hearts with deep sorrow.A. whichB. whenC. thatD. how40. You have no idea_______ for her safety.A. how anxious I have beenB. so anxious I have beenC. how I have been anxiousD. I have been so anxious41. Word came ________ Fei Junlong had succeeded in walking in space.A. thatB. whyC. whereD.who42.The fact________ she works hard is well known to us all.A. thatB. whatC. whyD. which。

名词性从句讲练名词往往在句中充当主语，宾语，表语和同位语。

在复合句中，代替名词充当主语，宾语，表语和同位语的句子统称为名词性从句。

名词性从句分为：主语从句、宾语从句、表语从句、同位语从句。

〔一〕引导名词性从句的连接词引导名词性从句的连接词可分为五类：a.连词：that〔无任何词意，不作成分，只起连接作用，宾语从句中常可省略〕1) My hope is that she will soon be well again. (表语从句)我的希望是她能很快康复。

2) Everybody hopes that she will soon be well again.〔宾语从句〕大家都希望她能很快康复。

3) That she will soon be well again is our hope.〔主语从句〕她能很快康复是我们的希望。

b. whether, if〔均表示“是否〞说明从句内容的不确定性，不作成分〕1) Whether he is coming or not doesn’t matter too much.(主语从句，不能用if)2) I went in and asked if/whether they had a cheap suit.3) I wonder whether/if he will come in such bad weather.c. 连接代词：what, whatever, which, whichever, (在从句中作主语，宾语，表语，指物)1) ____he need is more time.显然，主语从句：he是主语，谓语动词need缺宾语，因此应填what.2) Tell us ___you saw and heard during your visit to that university. 3) This is not ___I want.4) ____some people are against is ___other people are for. 5) The question is which team will win.6) I have two apples, I don’t know which you want.归纳：what一般用于不知道内容或范围的句子；which“哪一个……〞一般用于给出内容或范围的句子。

专项训练名词性从句复习巩固专讲专练(章末复习+综合测评+答案)含答案解析一、初中英语名词性从句1．______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.A. WhichB. WhatC. ItD. As【答案】 C【解析】【分析】句意：医疗保健的进步将促进一个更强大、更繁荣的经济，这是我们的信念。

that引导的是主语从句，故空格处应该用it作形式主语，代替真正的that引导的主语从句。

故答案选C。

【点评】考查it的用法，以及主语从句的应用。

2．It has been pointed out ________ plays a vital role in driving away one's anxiety is one's sweet childhood memories.A. what thatB. whichC. thatD. that what【答案】 D【解析】【分析】句意：有人指出，驱除焦虑所起着至关重要的作用是童年美好的回忆。

本句时一个主语从句，it作形式主语，真正的主语为that what plays a vital role in driving away one's anxiety is one's sweet childhood memories.，主语从句中又有一个主语从句，且此主语从句中缺少主语，所以用what引导。

故选D。

【点评】考查名词性从句，本题涉及what引导的主语从句。

3．_______is known to us all is that Johnson broke his promise ______ he would come to help me as soon as possible.A. It; thatB. What; thatC. As; whichD. What; which【答案】 B【解析】【分析】句意：我们都知道，Johnson违背了他会尽快来帮助我的诺言。

Our Topic名词性从句一.概念：在从句中起名词作用的从句即名词性从句。

它们是：主语从句，宾语从句，同位语从句和表语从句。

二.引起名词性从句的连词：1.that 无意义，只起倒引起从句的作用，如引导宾语从句可省略。

That he beat his opponent in the tennis game encouraged his teammates.He said (that) another child was infected with bird flu.The fact is that he knows nothing about it.应用于Her dream that she will become a woman astronaut is sure to come true.2.what 有意义，”所……的”或随句子意思而定。

在从句中作主语，宾语和表语。

What makes her different from others is her strange behaviour.This is what I want to say.Please tell me what it is.3.whether 有意义，“是否”，引导宾语从句可以用if。

Whether it is true is not certain.He asked me whether/if he could ask another question.4.when 引起表示时间的名词性从句，意思是“……的时候”或“何时……”When we can get rid of the rubbish is still unknown.They didn’t know when they could meet again.The question is when the money can be collected.5.where 引起表示地点的名词性从句，意思是“在……的地方”或“到……的地方”Where the meeting will be held hasn’t been decided.Everyong wants to know where the plant can be found.6.how 引起表示方式的名词性从句，意思是“……的方式”或“如何……”The problem is how we can get out of the trouble.How we can get in touch with him is the most important.7.why 引起表示原因的名词性从句，意思是“……的原因”或“为什么……”Why he said that rubbish at the meeting puzzled me.At last,he told us why he didn’t agree with us.8.who “谁” ,whom“谁”，whose“谁的”Who will be chosen is the topic of conversation now.I want to know who/whom you really want to see.Whose handwriting is the most beautiful is very clear now.9.疑问词+ever 也可以引起名词性从句Whatever was said here must be kept secret.Whoever fails to see this will make a big mistake.I’ll give it to whoever likes it.Parents shouldn’t give their children whatever he/she wants.三. 名词性从句的种类：四种——主语从句，宾语从句，同位语从句和表语从句1. 主语从句：在复合句中充当主语的从句叫主语从句，上述引导词除if外均可引起主语从句。

名词性从句讲解在复合句中起名词作用的从句叫做名词性从句.它包括主语从句、宾语从句、表语从句和同位语从句。

名词性从句是中学阶段的一个重要语法项目,在历年的高考中几乎都涉及到，并且每年的命题各有变化。

分析历届高考试题名词性从句考查的焦点主要有以下六个方面1. 考查名词性从句的语序问题2. 考查引导词that与what的区别3. 考查it在名词性从句中作形式主语或形式宾语的用法 4。

考查whether与if的区别5。

考查名词性从句中的疑问词+ever引导的名词性从句与no matter+疑问词引导的状语从句的区别6。

考查名词性从句的虚拟语气问题语法要点剖析一、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，whatever,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，还没有宣布。

名词性从句讲解及专项练习名词性从句又称为主语从句、宾语从句、表语从句和同位语从句，它在句子中充当名词的作用。

名词性从句通常由连接词引导，如that、whether、if、who、whom、which、what等。

主语从句主语从句作为句子的主语，在句子中起到强调、解释或说明的作用。

主语从句通常使用that引导，有时也可以用wh-词引导，但在口语中通常省略。

例如：- That she is a talented musician is well-known.（她是一位才华横溢的音乐家是众所周知的。

）宾语从句宾语从句作为句子的宾语，在句子中起到接受动作的作用。

宾语从句通常由that引导，也可以由wh-词引导。

例如：- She said that she was not feeling well.（她说她身体不舒服。

）- I don't know what she wants.（我不知道她想要什么。

）表语从句表语从句作为句子的表语，用来描述主语的状态、性质或特征。

表语从句通常由that引导，也可以由wh-词引导。

例如：- The important thing is that we all try our best.（重要的是我们都要尽力。

）- What matters is how you feel about it.（重要的是你对此是如何感受的。

）同位语从句同位语从句用来解释、说明或补充前面名词的内容，相当于同位语的作用。

同位语从句通常由that引导，一般不用wh-词引导。

例如：- I heard the rumor that they are getting married.（我听说他们要结婚的谣言。

）以上是对名词性从句的讲解，希望能帮助您更好地理解和应用名词性从句。

下面是一些专项练，请您根据句意选择合适的名词性从句填入空格中：1. Do you know ______ he is?3. I don't know ______ I should choose.4. The truth is ______ he lied to us.请在完成练后检查答案。

名词性从句用法讲解与专项练习题及答案名词性从句包括主语从句、宾语从句、表语从句和同位语从句。

高考常从连接词的选择、语序、语气、时态等方面来考查。

名词性从句中的连接词有连词that / whether / as if，连接代词what / who/ which /whose / whatever / whoever / whomever / whichever，连接副词where /when /why / how / wherever / whenever。

第1讲引导名词性从句的连接词\考点1. 引导名词性从句的连接词有哪些有学生认为，引导同位语从句只能用that, 这句话对吗先看下面几个句子。

①I have no question that he will come.②I have a question whether he will come③I have a question when he will come.我们可以看出：上面三个句子中question后面都是同位语从句，都是说明question的内容的。

~在句①中，同位语从句的原句是陈述句，由that引导；在句②中，原句是一般疑问句，由whether引导；在句③中，同位语从句的原句是特殊疑问句，特殊疑问词也起着连接作用。

其实，所有名词性从句的连接词都有上面的三种情况。

宾语从句：I don’t know that he will come.I don’t know whether/if he will come.I don’t know when he will come.【表语从句：What I don’t know is that he will come.What I don’t know is whether he will come.What I don’t know is when he will come.主语从句That he will come is obvious.Whether he will come isn’t known yet.When he will come isn’t known yet.^1. 【2010浙江】It is uncertain ______ side effect the medicine will bring about, although about two thousand patients have taken it.A. thatB. whatC. howD. whether2. 【2012全国新课标】It is by no means clear ______ the president can do to end the strike.A. howB. whichC. thatD. what3. 【2012山东】It doesn’t matter ______ you pay by cash or credit card in this store.A. howB. whetherC. whatD. why4. 【2013陕西】It remains to be seen ______ the newly formed committee’s policy can be put into practice.]A. thatB. whichC. whatD. whether5. 【2009天津】It is obvious to the students ______ they should get well prepared for their future.A. asB. whichC. whetherD. that6. 【2012江西】It suddenly occurred to him ______ he had left his keys in the office.A. whetherB. whereC. whichD. that考点2. 引导词that的省略问题主语从句、表语从句、同位语从句中连词that不能省略。

第四章名词性从句学习目标1.掌握名词性从句的概念和分类，并能识别出名词性从句2.掌握主语从句的连接词、语序、时态的用法3.掌握表语从句的连接词、语序、时态的用法4.能熟练理解名词性从句的含义并能进行长难句分析识记一、名词性从句概念及分类名词性从句是指在句子中相当于名词作用的从句，通常充当主句的主语、宾语、表语等成分。

名词性从句主要包括__________从句、__________从句、__________从句和__________从句。

e.g.That the boy failed again in the exam disappointed his mother. （__________从句）I know that he is writing his composition in his room. （__________从句）The question is how we can finish it on time. （__________从句）The fact that some Chinese are still poor is really a great problem. （__________从句）二、名词性从句连接词一、主语从句位于句首，常用____做形式主语e.g. That he will come and help you is certain. (that不充当从句内的任何成分，____省略)Whether there is life on the moon is an interesting question. (whether不充当从句内的任何成分，不能用____)What he wants to tell us is not clear. (what充当从句内的_____)Who will win the match is still unknown. (who充当从句内的_____)Where the English evening will be held has not yet been announced.(where充当从句内的_____语)Whatever he said was right. (whatever充当从句内的_______)It is known to us how he became a writer. (it为形式主语，代替how引导的____从句)【主语从句要点拓展】1. it做形式主语的结构(1) It’s a pity/ a shame/ an honor/ a fact/ no wonder/ common sense/ good news that… 遗憾的是（荣耀的是、事实是、难怪是、常识是，好消息是……）e.g. It is a pity that you didn’t attend the lecture yesterday.(2) It’s clear/right/true/certain/necessary/(un)likely/important/(im)possible/obvious/remarkablethat… ……很清楚（正确，必要，重要，可能，值得注意等)e.g. It is likely that there will be a snowstorm tomorrow.(3) It is well-known/reported/recorded/estimated/said/believed that…众所周知（据报道，据记载，据估计，据说，据人们相信)…e.g. It is said that his father left him nothing.(4) It turns out/seems/appears/happens/matters…) that…结果是……（似乎是, 碰巧是, 重要的是……）e.g. It happened (to me) that I had been away when he called.2. it做形式主语与it is(was)… that…强调句式的区分e.g. It is a pity that you didn’t go to see the film.It is in the morning that the murder took place.解题方法：将it is/was… that 去掉，看余下部分是否完整，若完整即为强调句式；反之为it作形式主语。

名词性从句讲解练习名词性从句是指在复合句中起名词作用的句子，功能相当于名词词组。

名词性从句在复合句中能作主语、宾语、表语、同位语等，根据在句中的语法功能可分为主语从句、宾语从句、表语从句和同位语从句。

一、主语从句【定义】在复合句中，作主语的句子称为主语从句。

【常见的连接词】（连接词在句中不能省略）that, whether, who, what, whatever, whoever, where, when, why, how等。

【用法】连接词 that 引导That we should learn English well is very important.主语从句中 we should learn English well句子完整，不缺成分，用that引导，that 不能省连接词whether，if 引导whether 引导的主语从句可放句首，也可放句中，表“是否”if 引导的主语从句只能引导动词后的宾语Whether I will go or not depend on the weather.It remains to be seen whether / if they can finish the task in time.2.连接代词what, who, which, whose, whatever, whichever，whoever等引导What matters most is your attitude.3.连接副词when，where，why，how等引导How he made it is still unknown.4.it作形式主语为了避免句子头重脚轻，通常把形式主语it放在句首，真正的主语放在句子后面。

常见句型：(1) It is + n.+ that + 句子It is +（a pity / a shame / a fact …）+ that ...(2) It is + adj.+ that + 句子It is +（true / clear / important …）+ that ...(3) It is + 过去分词 + that + 句子It is+ said / announced / expected / believed / hoped… + that ...(4) It seems /appears / happens / turned out that + 句子(5) It hit sb./occurred to sb.that + 句子二、宾语从句【定义】在复合句中，作宾语的句子称为宾语从句。