名词性从句精讲精练
名词性从句精讲精练
名词性从句精讲精练一、教学内容寒假专题：名词性从句精讲精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”表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。
高考英语名词性从句讲练(无答案)
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。
名词性从句精讲（讲解+练习）
名词性从句精讲（讲解+练习）高中英语名词性从句练习1.It's no longer a question now _____ man can land on the moon.A. thatB. ifC. whetherD. what2. _____he said at the meeting astonished everyone at present.A. WhatB. ThatC. The factD. The matter3. In front of___ remained of my old house, I took some pictures, which called up my childhood.A. whichB. the placeC. whereD. what4. _____ you can go to college this year depends on ___ you are studying hard now.A. That, thatB. Whether, whetherC. If, ifD. Whether, if5. _____has recently been done to provide more buses for the people, a shortage of public vehicles remainsa serious problem.A That B. What C. Though what D. In spite of what6. I'll tell you _____ he expects will win such and such a match.A. whoB. whomC. whatD. that7. I didn't quite follow you. What was _____you just said about the place?A. thatB. whichC. howD. where8. Maria has to baby-sit. That's _____ she can' t come out with us.A. whenB. howC. whyD. what9. After ____seemed a very long time, the badly-wounded soldier came back to life.A. thatB. itC. whichD. what10. _____she was chosen monitor made him excited.A. WhatB. ThatC. IfD. Whether11. I don't think _____Jenny can come home this weekend.A. howB. whyC. thatD. when12. When I try to find _____ that prevents so many people from taking part in the program, it seems to me that there are two mean causes. A. what it does B. what it is C. why it does D. why it is13. Y ou should stick to _____you have begun until you succeed.A. whichB. thatC. whateverD. no matter what14. Someone is ringing the doorbell. Go and see _____.A. who is heB. who he isC. who is itD. who it is1.These photograhps will show you _____.A.what does our village look likeB.what our village looks likeC.how does our village look likeD.how our village looks like2.Can you make sure ______ the gold ring?A.where Alice had putB.where did Alice putC.where Alice has putD.where has Alice put3.No one can be sure _____ in a million years.A.what man will look likeB.what will man look likeC.man will look like whatD.what look will man like4.—-We haven’t heard from Jane a long time.--What do you suppose _____ to her?A.was happeningB.has happenedC.to happenD.having happened5.Go and get your coat. It’s _____you left it.A.thereB.whereC.there whereD.where there6._____ the 2000 Olympic Games will be held in Beijing is not known yet.A.WheneverB.IfC.WhetherD.That7._____ he said at the meeting astionished everyone present.A.WhatB.ThatC.That factD.The matter8.—-Do yopu remember _____ he came? --Yes, I do . He came by car.A.howB.whenC.thatD.it9._____ we can’t get seems better than ______ we have.A.What , whatB.What , thatC.That , thatD.That , what10.After the war, a new school building was put up ________there had once been a theatre.A. thatB. whereC. whichD. when11.Mother will wait for him to have dinner together.A. However late is heB. However he is lateC. However is he lateD. However late he is12.Dr,Black comes from either Oxford or Cambridge,I can‘t remember _____.A.whereB.thereC.whichD.that13.Why do you want a new job_____y ou’ve got such a good one already?A.thatB.whereC.whichD.when14. －－I,m going to the post office.－－＿＿＿＿＿you‘rethere. can you get me some stamps?A. AsB. WhileC. BecauseD. If15. ＿＿＿＿＿you’ve got a chance. you might as well make full use of it.A. Now thatB. AfterC. AlthoughD. AS soon as16．－－I drove to Zhuhai for the air show last week.－－Is that ＿＿＿＿＿you had a few days off?A. whyB. whenC. whatD. where17. Y ou should make it a rule to leave things＿＿＿＿＿you can find them againA. whenB.whereC.thenD.there18. We‘ll have tofinish the job.＿＿＿＿＿.A. long it takes howewerB. it takes howewer longC. long however it takesD. however long it takes19.______she couldn’t understand was _______ fewer and fewer studnets showed interest in her lesson.A.What , whyB.That , whatC.What , becauseD.Why , that20.Someone is ringing the doorbell. Go and see ___________.A.who is heB.who he isC.who is itD.who it is1.A2. A3. D4. B5. D6. A7. A8. C9. D 10. B 11.C 12. B 13. C 14. DEx. 2 KEYS: 1-5 BCABB 6-10CAAAB11-15 DCDBA16-20 ABDAD名词从句专练1.______ caused the accident is a complete mystery.A. ThatB. WhatC. WhetherD. Whom2.______ she was chosen made us very happy.A. ThatB. WhatC. WhetherD. /3.______ comes to the party will receive a present.A. WhoeverB. WhoC. No matter whoD. Whomever4.It depends on the climate ______ they are going shopping today.A. thatB. whetherC. whatD. who5.The reason is ______ you don’t trust her.A. thatB. whetherC. ifD. what6.It is still unknown ______ team will win the match.A. whatB. whichC. who whether7.It is known to us ______ he became a writer.A. howB. whatC. whetherD. that8.________ the English evening will be held has not yet been announced.A. thatB. whatC. where D which9.This is ______ I disagree.A. thatB. whatC. whetherD. where10.She explained _______ she was late because of the heavy traffic.A. whatB. ifC. whyD. /11.He has made _______ clear that he will not give in.A. itB. /C. thatD. this12._______ do you think is going on outside?A. WhatB. WhoC. ThatD. Whether13.I don’t suppose he cares，______ ?A. do youB. don’t youC. does heD. doesn’t he14.I doubt ______ our football team will win the match.A. ifB. thatC. whatD. when15.I don’t doubt _____ I can defeat him in the contest.A. ifB. thatC. whatD. when16.The news _______ they had won the game soon spread over the whole school.A. whatB. ifC. whetherD. that17._____ we can’t get seems better than what we have.A. WhatB. ThatC. WhetherD. Who18._____ a new teacher will come to teach us geography is true.A. WhatB. ThatC. WhetherD. Who19.It all depends upon _______ we can raise enough money.A. ifB. whetherC. whatD. that20.The question is ______ we can collect enough money.A. ifB. whetherC. thatD. what21._______ she will go home or not is unknown.A. ifB. whetherC. thatD. what22.I don’t care ______ he will come to my party.A. ifB. whetherC. thatD. what23.______ has helped to save the drowning girl is worth praising.A. whoB. whoeverC. WhomD. No matter who24.______ will be elected president doesn’t make much difference to me.A. whoB. whoeverC. WhomD. No matter who25.It is generally considered unwise to give a child ______ he or she wants.A. No matter whatB. WhateverC. whatD. whichever26.This is exactly _____ I want.A. No matter whatB. WhateverC. whatD. whichever27.He made a promise ______ if anyone set him free He would make him very rich.A. thatB. /C. whatD. whether28.The mother made a promise _______ pleased all her children.A. thatB. /C. whatD. whether29.Take ______ you need and leave me alone.A. whichB. whatC. whateverD. no matter what30.No one will be sure ______ man will look like in a million years.A. thatB. whatC. whetherD. if31.It is necessary that the problem ______ be settled at once.A. /B. wouldC. mightD. could32.Bob's doctor suggests that he ______ for a few days.A. restB. restsC. would restD. will rest33.This is our only request that this _______ be settled as soon as possible.A. /B. wouldC. mightD. could34.Her suggestion was that they ______ carry on their conversation in French.A. shouldB. wouldC. mightD. could35.______ matters most in learning English is enough practice.A. WhatB. WhyC. WhereD. Which36.Choosing the right dictionary depends on ________ you want to use it for.A. whatB. whyC. howD. whether37.The seaside here draws a lot of tourists every summer. Warm sunshine and soft sands make________ it is.A. whatB. whichC. howD. where38.You can only be sure of ________ you have at present；you cannot be sure of something________ you might get in the future.A. that；whatB. what；/C. which；thatD. /; that39.Why not try your luck in Shanghai, Bob? That’s ________ the best jobs are.A. whereB. whatC. whenD. why40.Having checked the doors were closed，and ________ all the lights were off，the boy openedthe door to his bedroom.A. whyB. thatC. whenD. where41.The traditional view is ________ we sleep because our brain is programmed to make us do so.A. whenB. whyC. whetherD. that42.—It’s thirty years since we last met.—But I still remember the story，believe it or not，________ we got lost on a rainy night.A. whichB. thatC. whatD. when43.Nobody believed his reason for being absent from the class ________ he had to meet hisuncle at the airport.A. whyB. thatC. whereD. because44.________ different life is today from ________ it used to be ten years ago!A. How；whatB. What；whatC. How；thatD. What；that45.—Do you think it a must for me to try to do everything for my children?—No，that's ________ you are mistaken；they should do something on their own.A. whereB. whenC. soD. how46.I was shocked by the news，which made me realize ________ terrible problems we would face.A. howB. whichC. whatD. that47.I was close to being killed the other day. A car passed me at ________ I thought was adangerous speed.A. asB. whichC. whatD. that48.The fact has worried many scientists the earth is becoming warmer and warmer theseyears.A. whatB. whichC. thatD. though49.At first he hated the new job but decided to give himselfa few months to see ____ it got anybetter.A. whenB. howC. whyD. if50.It is obvious to the students they should get well prepared for their future.A. asB. whichC. whetherD. that51.Many young people in the West are expected to leave could be life’s most importantdecision—marriage—almost entirely up to luck.A. asB. thatC. whichD. what52.The poor mother loved her baby so much that she managed to save _______ she could out ofher wages to take care of it.A. how little moneyB. so little moneyC. such little moneyD. what little money53.Could I speak to is in charge of International Sales, please?A. anyoneB. someoneC. whoeverD. no matter who54.—Is there any possibility you could pick me up at the airport?—No problem.A. whenC. whetherD. what55.We s hould consider the students’ request _______the school library provide more books onpopular science.A. thatB. whenC. whichD. where56.News came from the school office Wang Lin had been admitted to Beijing University.A. whichB. whatC. thatD. where57.A good friend of mine from I was born showed up at my home right before I left forBeijing.A. howB. whomC. whenD. which58.The information will be helpful to will take over the job.A. thoseB. whoC. whoeverD. anyone59.The painting is so valuable that it is difficult to calculate its price would be.B. whichC. whatD. /60._______ you don’t like him is none of my business.A. WhatB. IfC. ThatD. Whether61.The media today can draw public attention to help is actually needed.A. thatB. whichC. whereD. whose62._______ medicine works in a human body is a question not everyone can understand fully.A. How; thatB. That; whichC. What; whichD. What; that63.—I think it’s going to be an argument.—Yes, it could be.—I wonder we can do about it.A. whatB. howC. whenD. whether64.Sorry I’m so late, but you cannot imagine great troubleI took to find your house.B. howC. whichD. why65.Professor John took up scientific research for decades and this is ___ he devoted all his lifeto.A. whichB. whatC. whereD. how66.Tina was hesitating about the job offer as she did not know the company was anestablished one.A. whetherB. whatC. untilD. although67.It could be judged from her eyes she was very satisfied with her performance.A. whatB. whichC. thatD. where68.It was not what he said but ______ he said it that hurt my feelings.A. thatB. whatC. howD. whether69.______ you have picked up, you must give it back to _______ it belongs to.A. Whatever; whoeverB. What; no matter whoC. No matter what; no matter whoD. Whatever; no matter who70.—You know, I'm poor in Chinese, you are not good at English, and...—That’s _______ we should help each o ther.A. whenB. whereC. howD. what。
高考英语语法专题精讲精练-名词性从句
语法专题二：名词性从句1. 名词性从句的基本概念：1) 主语从句：在句中充当主语；亦可用it作形式主语，主语从句置于句末。
2) 宾语从句：在句中充当及物动词或介词的宾语；亦可用it作形式宾语，宾语从句置于句末。
3) 表语从句：在句中充当系动词的表语。
4) 同位语从句：常置于fact, idea, news, promise, doubt, suggestion, possibility, belief等表示有内容的名词后，起解释、说明作用。
2. 注意：1) 名词性从句要用陈述句语序。
2) 名词性从句中缺少主语、表语、宾语时：常用what 导，亦可用which表示选择，用who/whom/whoever指人。
缺少状语：用where（表地点）, when（表时间）, how（表方式）, why（表原因）。
3) 如不缺成份：主语从句、同位语从句用that引导，不能省略；表从、单个动词宾从可省略引导词that；介词宾从、第二个宾从，引导词that一般不省略；it作形式主语或宾语时，引导实际主从或宾从，一般that不省略；当主从、宾从本身为复合句时，引导词that不省略。
如：He told us sadly that what he had done secretly was dis covered by his parents.4) 含宾从的复合句中，主句和从句的时态保持一致，但如果从句中表示是客观现象，虽然主句是过去时态，从句仍用一般现在时。
5) 主语从句做主语，谓语动词用单数；如果由and 连接两个或两个以上的主语从句做主语时，谓语动词用复数；由两个或多个连接词引导一个主语从句，谓语动词用单数。
6) 当主句是I/We think（或suppose, expect, believe, imagine, guess）时，其后的宾语从句如果是否定的，常常把否定词not从从句中移到主句中。
7) 只能用whether，不能用if表示“是否”的情况如下：(1) 在表语从句和同位语从句中；(2) 在主语从句中，如果用it做形式主语，whether和if都能引导主语从句，否则，只能用whether(3) 在介词之后；(4) 后面直接跟动词不定式；(5) 与or not连用；(6) 引导让步状语从句，只能用whether。
高考英语必考语法点精讲精练：名词性从句(含高考真题)
⑤ We haven’t decided __w_h_e_t_h_e_r__ to take part in the competition. ⑥ No one have settled the question so far w__h_e_t_h_e_r the world will
The important thing in life is that you should have a great aim and the determination to attain it.
Appositive clauses:
e.g.: There is no doubt that he will win the game. He must answer the question why he did that. He failed again due to the fact that he didn’t work hard.
Tips: Nouns can function as subject, object, predicative, appositive.
Definition:
➢What impresses me most is your smile.
TC➢itlpDaosodu:nasey’.sttphuattofuffntciltlitoonmaosrrsouwbwjehcatt,sohboujeldctb,e done
His broad smile suggested that he __h_ad__e_n_c_o_u_n_te_r_e_d____ (encounter) someone he adored.
whether & if（只用whether情况）
考点08 名词性从句(核心考点精讲精练)(解析版)
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。
名词性从句学案精讲精练习题附答案
名词性从句同学们，在第3、4、5单元我们分别学习了宾语从句、表语从句、主语从句和同位语从句。
它们都属于名词性从句。
现在，我们将从下面几点谈谈名词性从句：一、相关概念；二、种类；三、常见引导词；四、七大常考考点：l.that \ what \ which; 2.it形式主语、宾语的用法；3.语序问题；4.同位语从句和定从的区别；5.what \ whatever… 6.if\whether;7.虚拟语气问题；五、相关习题集中练习一.相关概念1. 名词：表示人或事物的名称的词2. 名词的句法作用：名词在句中主要作主语，宾语，表语和同位语。
另外还可以作定语，状语3. 名词性从句：在英语的句子结构中，本来该由名词充当的主语、宾语、表语和同位语，由一个句子来充当，这个句子就叫：名词性从句。
二、名词性从句的种类1. When we will start is not clear.主语从句2. Mrs. Black won ' t belieV hat her son has become a thief.宾语从句3. My idea is that we should do it right now.表语从句4. I had no idea that you were her friend. 同位语从句三、常见引导词:1）从属连词that只引导，本身无意义，仅起引导作用。
（引导宾语从句时可省，但是如果是并列的多个宾语从句，只能省第一个）2）连接代词who, whom, what, which, whoever, whatever, whiche等e，有意义，作成分3）连接副词where, when, how, why等，有意义，在句中作状语4）从属连词if, whether （是否）（if只能引导动词、形容词之后的宾语从句）1. What he said has nothing to do with you.2. When we'start tomorrow will be told soon.3. That he did such a thin gsatisfied me.4. How we can protect cultural relics needs to be discussed.四、名词性从句七大常考考点考点1:A.连接词：that与what的区别What we can ' t get seems better tha h n at we have.That a new teacher will come to our school is true.that只起连接作用，无意义，在从句中不充当任何成分;what既有连接作用，又要在从句中作成分（主语，宾语，表语）（…的东西;物;话;时间;地点;人物擞目等不同概念）1. After five hours drive, they rea Wtedt was called the hometow n of the goddess.2. The other day, my brother drove his car down the street at what was a dangerous speed.3. The village was quite differe nt from what it used to be.4. That the earth is round is known to us all.5. Father made a promis&hat if I passed the exam in ati on he would buy me a computer.B. what （什么）/ which （表选择，哪一个）1. ---Do you know what Mr. Black ' s addres? is---He may live at No. 18 or No. 19 of Bridge Street. I whi o h not sure of2. I read about it in some books or other, does it mattewhich it was?咼考题选萃1) ____ y ou don ' t like him is none of my bus in ess.A. WhatB. WhoC. ThatD. Whether2) ___ h e said at the meeti ng ast oni shed everybody prese nt.A. WhatB. ThatC. The factD. The matter3) There ' s a feeling in me ___ we kn'w weve ra UFO is.A. thatB. whichC. of whichD. what考点2 : it作形式主语，形式宾语的用法A. it作形式主语1. 他犯了那样一个错误真是遗憾。
高考英语语法名词性从句高频考点精讲与精练
高考英语语法名词性从句高频考点精讲与精练考点一、名词性从句的分类与判断引导名词性从句的连接词用法区别 引导词是否担任成分 有无意义 thatwhetherwhWhat 与who 担任主语或宾语What happened/seemed/is knownWhat SB said/did/wanted/used to be/looks like考点二、名词性从句的语序在名词性从句中一律用语序The problem isA. when we will startB. when will we start考点三、主语从句主语从句: 在句中作主语的句子叫主语从句根据引导词可分为根据其在主句中担任的成分可分为X（一）主语从句的复合句主谓一致一般情况下单个的主语从句作主语，谓语动词用; 两个或以上的主语从句作主语，谓语动词用。
如:When he was born_______(be) not clear.When the person was murdered and why he was murdered_______ (be) still unknown.Who laughs last_______ (laugh) best.（二）主语从句五种句型(1) It is necessary/surprising/positive/certain/clear/obvious/evident/apparent/likely/probable/p ossible that sb do(2) It is a pity/a shame/an honour/a fact/a surprise/ a wonder/no wonder/ a coincidence/one’s responsibility/duty that sb do(3) It is said/known/believed/expected that sb do(4) It happens/comes about/occurs to sb/strikes sb/hits sb/turns out/worries sb a lot /seems/matters that sb do (It doesn't matter whether sb do)(5) What is known is that sb do考点四、宾语从句在复合句中用作宾语的从句叫宾语从句介词后的从句也叫宾语从句He was interested inyou told him.（一）that引导的宾语从句改错：She told me that she lived in Beijing and she was an actress .（二）用whether或if引导的宾语从句①I don’t know whether or not he will help us.②I don’t care whether you have money.③I wonder whether sb do④He asked whether sb do⑤I am not sure whether sb do（三）宾语从句中的时态呼应主句是一般现在时，从句.①I know that he (study) English every day.②I know that he (study) English last term.③I know (that) he (study) English next year.④We know that he (study) English since 1998.主句用一般过去时，从句①We believed that he (earn) enough money to build a house.②The teacher told us that he (leave) us for America.当从句表示的是客观真理，科学原理，自然现象，则从句③The teacher told us that the sun（rise）in the east.（四）否定转移:I/ We think (suppose, expect, believe, guess, imagine) that sb not…变为I/ We don’t think that sb do sth判断改错：①We believe that he won’t win the game.判断改错：②He thinks he won’t do so.（五）it做形式宾语1、句型为"6123结构"2、like it/dislike it /hate it that sb doI’d appreciate it if sb dosee to it/rely/depend on it/take it for granted that sb dokeep it in mind that sb do (不能用it)（六）doubt后的宾语从句I doubt whether… I am not sure whether…I don’t doubt that…I am sure that…Do you doubt that… Are you sure that…例句：①We doubt he can win the game.②I don’t doubthe will win the game.（七）suggest/order宾语从句suggest that sb should do建议suggest that sb do/did/will do说明，以为着，认为①He suggested that a meeting_______ (hold) immediately.②The smile on his face suggested that he_______ (pass) the examination. insist that sb should do坚持要求insist that sb do/did/will do坚持认为①I insist that she _______ (do) her work alone②He insisted that he_______ (be) right.考点五、表语从句:表语从句:在句中作表语的句子叫表语从句。
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名词性从句精讲精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”表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。
可作主语，宾语，表语，还可作定语。
d. who, whoever, whom, whomever, whose（在从句中作主语，宾语，表语，定语，指人）1) Who will give us a lecture is unknown.2) The question is who will come here.e. 连接副词：when, where, how, why, whenever, however, wherever (在从句中作状语)1) I have no idea how he learned about it.2) Where she has gone is not known yet.3) When he will start is not known yet.4) This is why he is late.注意：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。
（二）具体分类一）主语从句在复合句中作主语的从句叫主语从句。
1) That you are leaving is a pity.你要走，真遗憾。
2) Whether the football game will be played depends on the weather.足球比赛是否举行将视天气而定。
3) What he wants to tell us is not clear.他要跟我们说什么，还不清楚。
4) Who will win the match is still unknown.谁能赢得这场比赛还不得而知。
5) 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。
6) 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。
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① It’s a pity that we can’t go.很遗憾我们不能去。
② It is a fact that English is being accepted as an international language.英语正在被人们接受为国际语言，这是事实。
③ It is no wonder that he is not hungry; he has been eating sweets all day.难怪他不饿，他整天在吃糖果。
（2）It + be + 形容词+ that从句① It is certain that she will do well in the exam.毫无疑问她考试成绩会很好。
② It is probable that he told her everything.很可能他把一切都告诉她了。
③ Is it true that the scientist will give us a lecture.下周那位科学家将给我们作报告是真的吗？（3）It + be + 动词的过去分词+ that从句① It is said that Mr. Green has arrived in Beijing.据说格林先生已经到了北京。
② It is reported that China has sent another man-made earth satellite into orbit.据报道中国又成功地将一颗人造地球卫星发射进入轨道。
（4）It + 不及物动词+ that 从句① It seems that Alice is not coming to the party at all.爱丽丝似乎不来参加晚会。
② It happened that I was out that day.碰巧那天我外出了。
（5）其他情况① It doesn’t matter wh ether she will come or not.她是否来无关紧要。
② It makes no difference where we shall have the meeting.我们在哪里开会毫无区别。
③ It suddenly occurred to her that she had forgotten to lock the door.她突然想到,她忘记锁门了。
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：a. It is necessary (important, natural, strange, funny, surprising etc.) that …It is important and necessary that we(should)keep the balance of nature.我们要维持生态平衡，这很重要而且是必不可少的。
b. It is a pity (a shame, no wonder, etc.) that…It is a pity that you (should) miss such a good chance.真遗憾你竟然失去这么好的机会。
c. It is suggested (requested, proposed, desired, etc.) that…It’s suggested that we (should) do the experiment a second time.有人建议我们再做一次实验。
Exercises:1. ____ is power is a famous saying known to us all.A. What knowledgeB. How knowledgeC. That knowledgeD. Where knowledge2. ___we can’t get seems better than ___we have.A. What, whatB. What, thatC. That, thatD. That, what3. ___troubles me is ___I can’t learn all these English idioms b y heart.A. That, thatB. What, what C, That, what D. What, that4. ___you need to improve your listening is more practice.A. ThatB. WhatC. WhyD. How5. Y our skirt is really splendid, but ___we actually need is not a skirt but a new pair of shoes.A. thatB. whatC. whetherD. how6. ___she couldn’t understand was ___fewer and fewer students showed interest in her lessons.A. What; whyB. That; whatC. What; becauseD. Why; because答案：1. C 2. A 3. D 4. B 5. B 6. A二）表语从句在复合句中作表语的从句叫表语从句。
其基本结构为：主语+ 系动词+ that从句。
表语从句位于连系动词后，可接表语从句的连系动词有：be, look, seem, sound, appear，remain 等。
1) The fact is that we have lost the game.事实是我们已经输了这场比赛。
2) That’s just what I want.那正是我想要的。
3) The question is whether they will be able to help us.问题是他们能否帮我们。