主语从句的做题技巧和练习题.doc

主语从句语法要点及专项练习一.什么是主语从句？主语从句是一个句子，但在句子作主语成分。二.主语从句有哪些特点？1.必须有连接词；2.经常隐身（以it为形式主语出现）。三.例句1. Its true that the earth is round. That the earth is round is true.2. 表是否的意思时，不能用if代替whether. It hasnt been decided whether hell come or not. Whether hell come or not hasnt been decided.3. 从句语序为主谓宾正常语序。 Why didnt he come? Why he didnt come is not known.4.由what,who, whoever, whatever 引导的主语从句不能变为以it为形式主语的句型。 What he said at the meeting is important.四.熟记以下变化Whoever=no matter who=anyone whoWhomever=no matter who=anyone whoWhoseever=no matter whose=anyone whoseWhichever=no matter which=anyone whichWhatever=no matter what=anything thatWhat=先行词+which/that主语从句的练习题：练习题一：1. It doesnt matter _ you turn right or left at the crossing-both roads lead to the park.A. whether B. how C. if D. when2. It suddenly occurred to him _ he had left his keys in the office.A. whether B. where C. which D. that3. - Weve only got this small bookcase. Will that do?- No, _ I am looking for is something much bigger and stronger.A. who B. that C. what D. which4. It doesnt matter _ you pay by cash or credit card in this store.A. how B. whether C. what D. why 5. _ the polluting factory will be removed from the city is, in fact, _ the citizens are glad to see.A. That; as B. As; what C. That; what D. What; that6. “ When _ leave for Japan?” “When _ leave for Japan is kept secret.”A. they will; will they B. will they; they will C. they will; they will D. will they; will they7. They lost their way in the forest, and _ made matters worse was that night began to fall.A. it B. which C. that D. what8. It has come to my notice _ some of you have missed to do anything well.A. what B. which C. that D. when9. _ we are doing has never been done before.A. That B. What C. Which D. Whether10. _asmuchasone-fifthofalltimberharvestedisnotused.A.Theestimate B.TheestimatedC.Theyareestimated D.Itisestimatedthat11._somemammals cametoliveintheseaisnotknown.A.WhichB.SinceC.AlthoughD.How12._wehaveachievedisattributedtotheguidanceofourparents.A.WhoeverB.WhateverC.HoweverD.That13._wealthydoesnotnecessarilymeanthatamanisgreedy.A.ForthereasonthatheisB.JustbecauseheisC.ThereasonofbeingD.Thatheis14.Although_happenedinthisdevelopedcountrysoundslikesciencefiction, itcouldoccur elsewhereintheworld.A.whichB.whatC.howD.it15._shehadforgottentotakehernotebook.A.ThatoccurredtoherB.SheoccurredthatC.ToherthatoccurredD.Itoccurredtoherthat16.Iamsurethat_shesaidiswrong.A.whichB.allC.thisD.what17.Welostourwayintheforest,and_mademattersworsewasthatitwasgettingdark.A.thatB.whichC.itD.what18._ornotisstilluncertain.A.HescomingB.Ifheiscoming C.ThatcomingD.Whetherhescoming19.Its_hellbeabletocome.A.doubtwhetherB.doubtfulC.doubtitD.doubtfulwhether20._heisatworkintheheartofthebigcityorathomeinthequietsuburb,Dickslifeistiedtomachines.A.WhetherB.TillC.IfD.Unless21._hesawbothsurprisedandfrightenedhim.A.ThatB.WhenC.WhatD.Which22._isapitythatheshouldfeelsoupset.A.WhatB.ThatC.HeD.It23. Its known to us all _ a form of energy . A. water is B. that water is C. is water D. that water to 24. It worried her a bit _ her hair was turning gray. A. whether B. that C. what D. when25.What I say and think _ none of your business. A. is B. are C. has D have26._ is known to us all that America is a developed country . A Which B As C What D It 27. _well go camping tomorrow depends on the weather . A If B Whether C That D Where 28._ he made an important speech at the meeting was true.A. That B. Why C. What D. How 练习题二：1._ makes mistakes must correct them.A. What B. That C. Whoever D. Whatever2.When and why he came here _ yet.A. is not known B. are not known C. has not known D. have not known3. _ Tom liked to eat was different from _.A. Thatthat you had expected B. What that you had expectedC. Thatwhat you had expected D. Whatwhat you had expected4._ we go swimming every day _ us a lot of good.A. If.do B. That.do C. If.does D. That.does5.It _ Bob drives badly.A. thinks that B. is thought what C. thought that D. is thought that6.Its uncertain _ the experiment is worth doing.A. if B. that C. whether D. how7._ the boy didnt take medicine made his mother angry.A. That B. What C. How D. Which8._ we cant get seems better than _ we have.A. What, what B. What, that C. That, that D. That, what9._ you dont like him is none of my business. A. What B. Who C. That D. Whether10._ well go camping tomorrow depends on the weather.A. If B. Whether C. That D. Where11._is going to do the job will be decided by the Party committee.A. That B. Why C. How D. Who12._well finish translating the book depends on the time.A. When B. Why C. What D. That13._he wont go there is clear to all of us.A. How B. What C. Why D. This14._the house will be built will be discussed at tomorrows meeting.A. If B. Where C. That D. W