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1、表语从句1、概述用作表语的从句叫作表语从句,它位于主句中的连系动词之后。引导表语从句的词有从属连词that、whether、asthough(if);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。可以接表语从句的连系动词由be,look,remain,seem等。That引导表语从句时,在口语中,间或可以省略。Thetroubleisth
2、atweareshortofmoney.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,itseemedasifIcouldn'tthinkoftherightwordanyhow.当时,我似乎怎么也想不出一个恰当的字眼来。2、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
3、的主语常常是些抽象名词,如question(问题),trouble(麻烦),problem(问题),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。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。Theproblemwasthatitwastoov
4、aluableforeverydayuse.问题是它作为日常之用太贵重了。Whatshecouldn’tunderstandwasthatfewerandfewerstudentsshowedinterestinherlessons.我们不能理解越来越少的学生对他的课不感兴趣。3、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。Thequestioniswh
5、ichofusshouldgo.问题是我们哪一个应该去。Theproblemwaswhocoulddothework.问题是谁能做这项工作。That'swhatheisworryingabout.那就是他在担心的事。That'swhatweshoulddo.那是我们应该做的。4、由关系副词引导的表语从句。Goandgetyourcoat.It'swhereyouleftit.去把雨衣拿来。就在你原来放的地方。Ihadneitheraraincoatnoranumbrella.That’swhyIgotwetthrough.
6、4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。Thatiswhatheisworriedabout.那就是他所担心的。5、由连词because,asif/asthough等引导的表语从句。Itlookedasifitwasgoingtosnow.看起来好像要下雪了。That'sbecauseweneverthoughtofit.这是因为我们从未想过此事。Itseemsasifhedidn’tknowthe
7、answer.好像他不知道答案。可以接表语从句的系动词有:1:be(being,been,am,is,are,was,were)2:feel,seem,look,appear,sound,taste,smell3:stand,lie,remain,keep,stay4:become,get,grow,turn,go,come,run,fall5:prove,turnout系动词的固定搭配:cometrue,fallasleep,fallill,gobad,comeright,runwild连接词:that/whether/
8、asif/asthough(if不引导表语从句)连接代词:who/whom/whose/which/what连接副词:when/where/why/how/because注:引导表语从句的连词that间或可以省略。 Thetruthis(that)Ididn'tgothere.事实是我没去那儿。4表语