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1、表语从句讲解及专项练习概念：表语从句是在复合句中作表语的名词性从句。放在系动词之后,一般结构是“主语+系动词+表语从句”可以接表语从句的连系动词有be,look,remain,seem等。Thetroubleisthatweareshortofmoney.困难是我们资金短缺。ThatiswhystonewallsareusedinsteadoffencesaroundNewEnglandfields.这就是为什么在新英格兰用石头墙而不用栅栏的原因。Atthattime,itseemedasifIcouldntthinkoftherightwordanyhow.当时,我似乎怎么也想不出一个恰当的
2、字眼来。引导表语从句的词：从属连词that、whether、asthough、asif（That引导表语从句时，在口语中，间或可以省略。）关系代词who,what,which,whom,whose,whatever,whoever,whomever,whichever等；关系副词when,where,why,how,however,whenever,wherever等。由从属连词that，whether引导的表语从句。that在引导表语从句时无词义，而whether有词义，意为、“是否”。这时主句的主语常常是些抽象名词，如question（问题），trouble（麻烦），problem（问题）
3、，result（结果），chance（可能性）,suggestion（建议），idea（想法），reason（理由）等。表语从句对主句主语进行说明、解释，使主语的内容具体化。例如：Thetroubleis(that)shehaslosthismoney.麻烦的事是他丢了钱。 Thequestioniswhetherweneedmoreicecream.问题是我们是否还需要一些冰淇淋。 Theproblemwasthatitwastoovaluableforeverydayuse.问题是它作为日常之用太贵重了。 Whatshecouldntunderstandwasthatfewerandfew
4、erstudentsshowedinterestinherlessons.我们不能理解越来越少的学生对他的课不感兴趣。由关系代词引导的表语从句。关系代词who,what,which,whom,whose,whatever,whoever,whomever,whichever等引导表语从句，在句中作主语、宾语、表语，关系代词不能省略。例如： Thequestioniswhichofusshouldgo.问题是我们哪一个应该去。 Theproblemwaswhocoulddothework.问题是谁能做这项工作。 Thatswhatheisworryingabout.那就是他在担心的事。Thats
5、whatweshoulddo.那是我们应该做的。由关系副词引导的表语从句。关系副词when,where,how,why除在句子起连接作用外，在从句中还充当时间，地点，方式或原因状语，本身具有词义。例如：Goandgetyourcoat.Itswhereyouleftit.去把雨衣拿来。就在你原来放的地方。Ihadneitheraraincoatnoranumbrella.ThatswhyIgotwetthrough.我们既没伞也没雨衣，这是我们淋湿的原因。 Thatishowmiceruinmanystoresofgraineveryyear.那就是老鼠是怎样每年损害大量粮食的。 Thatis
6、whatheisworriedabout.那就是他所担心的。由连词because，asif/asthough等引导的表语从句。Itlookedasifitwasgoingtosnow.看起来好像要下雪了。Thatsbecauseweneverthoughtofit.这是因为我们从未想过此事。Itseemsasifhedidntknowtheanswer.好像他不知道答案。A. 表语从句一定要用陈述语序。False:Thequestioniswhencanhearriveatthehotel.Right:Thequestioniswhenhecanarriveatthehotel.B. 不可以用
7、if，而用whether连接表语从句（asif例外）。引导宾语从句时可以互换if/whether位于介词后要用whether位于句首时要用whether。引导表语从句，主语从句，同位语从句时要用whetheroFalse:Thequestionisiftheenemyismarchingtowardsus.Right:Thequestioniswhethertheenemyismarchingtowardsus.Right:Itlookedasifhehadunderstoodthisquestion.C. 不像宾语从句，在有表语从句的复合句中，主句时态和从句时态可以不一致。Right:The
8、questioniswhowilltravelwithmetoBeijingtomorrow.Right:Thequestioniswhyhecriedyesterday.D. that在表语从句中不可以省掉。基本用法表语从句只能置于主句之后，而主句的动词只能是联系动词。名词性从句在be等系动词后作表语时被称为表语从句例如：Theproblemishowwecangetthethingsweneed.问题是我们怎样能弄到我们需要的东西。（how在表语从句中充当方式状语）ThescissorsarenotwhatIneed.这把剪刀不是我所需要的。（what在表语从句中充当宾语）WhatItol
9、dhimwasthatIwouldfindhimagoodplay.我告诉他的是我会给他找个好剧本。（what在主语从句中作直接宾语，that作为表语从句的引导词在该表语从句中不充当句子成分，不能省略）ThatiswhatIwanttotellyou.那就是我想要对你讲的。（what在表语从句中充当直接宾语）Thatiswhyshefailedtopasstheexam那就是她考试不及格的原因。（why在表语从句中充当原因状语）表语测试1.Thequestioniswewillhaveoursportsmeetnextweek.A. thatB.ifC.whenD.whether2Therea
10、sonwhyhefailedishewastoocareless.A.becauseB.thatC.forD.becauseof3.Goandgetyourcoat.ItsyouleftitA.whereB.thereC.therewhereD.wherethere4TheproblemistotaketheplaceofTedA.whocanwegetB.whatwecangetC.whowecangetD.thatwecanget5. WhatIwanttoknowishelikesthegiftgivenbyus.A.thatB.fC.whetherD.不填6. ThereasonisI
11、missedthebus.A.thatB.whenC.whyD.what7. Thatiswewerelatelasttime.A.thatB.whenC.whyD.what8. Shelookedsheweretenyearsyounger.A.thatB.likeC.asD.asthough9. Ifellsick!-Ithinkitisyouaredoingtoomuch.A.whyB.whenC.whatD.because10. Thereasonwhyhehasntcomeis.A.becausehismotherisillB. becauseofhismothersbeingill
12、C.thathismotherisillD.forhismotherisill11.Hewasbornhere.-ThatisA.thathelikestheplacesomuch.B.whatC.whyD.how12.ThatisLuXunoncelived.A.whatB.whereC.thatD.why13yourfatherwantstoknowisgettingonwithyourstudies.A.What;howareyouB. That；howyouareC. How；thatyouareD. What；howyouare14.Thetroubleisweareshortoft
13、ools.A.whatB.thatC.howD.whythat15.Americawaswasfirstcalled“India”byColumbus.A.whatB.whereC.theplaceD.therewhere16. Chinaisbecomingstrongerandstronger.ItisnolongerA.whatitusedtobeB.whatitwasusedtobeingC.whatitusedtobeingD.whatitwasusedtobe17. hereallymeansishedisagreeswithus.A.WhatthatC. WhatwhatB.Th
14、atwhatD. Thatwhat18. Theenergyismakesthecellsabletodotheirwork.A.thatB.whichC.whatD.such19IdrovetoZhuhaifortheairshowlastweek.Isthatyouhadafewdaysoff？A.whyB.whatC.whenD.where20.IhadneitheraraincoatnoranumbrellaIgotwetthrough.A.ItsthereasonB.ThatswhyC.ThereswhyD.Itshow21.Seetheflagsontopofthebuilding
15、?Thatwaswedidthismorning.A.whenB.whichC.whereD.what22.-Areyoustillthinkingaboutyesterdaysgame?-Oh,thats.A.whatmakesmefeelexcitedB.whateverIfeelexcitedaboutC.howIfeelaboutitD.whenIfeelexcited23.Whatsurprisedmewasnotwhathesaidbuthesaidit.A.thewayB.inthewaythatC.inthewayD.thewaywhich答案15:DBACC610:ACDDC1115:CBDBA1620:AACAB2123:DAA
