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1、省略复合句中的省略一、状语从句中的省略由when,while,as,once,whenever引导的时间状语从句;或由if,unless引导的条件状语从句;由though,although,evenif,eventhough引导的让步状语从句;由asthough,asif,as引导的方式状语从句;由wherever引导的地点状语从句,若从句的主句是it或与主句的主语相同,且在谓语中含有be时,常省略从句的主语和be。(1)当状语从句的主语和主句的主语一致时,可以省略状语从句中的主语和系动词be,这时从句中可出现如下结构:①连词(as,a
2、sif,once+名词)Once(hewas)ateacher,henowworksinagovernmentoffice.②连词(though,whether,when)+形容词Workhardwhen(youare)young,oryou’llregret.③连词(when,while,though)+现在分词While(Iwas)walkingalongthestreet,Iheardmynamecalled.④连词(when,if,evenif,unless,once,until,than,as)+过去分词⑤连词(asif,as
3、though)+不定式Heopenedhismouthasif(hewere)tospeak.高考链接:1.Whenfirst________tothemarket,theseproductsenjoyedgreatsuccess.A.introducingB.introducedC.introduceD.beingintroduced2.Unless________tospeak,youshouldremainsilentattheconference.A.invitedB.invitingC.beinginvitedD.having
4、invitedBA3.Themanwefollowedsuddenlystoppedandlookedasif________whetherhewasgoingintherightdirection.A.seeingB.havingseenC.tohaveseenD.tosee4.Generallyspeaking,________accordingtothedirections,thedrughasnosideeffect.A.whentakingB.whentakenC.whentotakeD.whentobetakenDB5.Un
5、less________tospeak,youshouldremainsilentattheconference.A.invitedB.invitingC.beinginvitedD.havinginvited6.When________,themuseumwillbeopentothepublicnextyear.A.completedB.completingC.beingcompletedD.tobecompletedAA7.Though________money,hisparentsman-agedtosendhimtounive
6、rsity.A.lackedB.lackingofC.lackingD.lackedin8.Theresearchissodesignedthatonce________nothingcanbedonetochangeit.A.beginsB.havingbegunC.beginningD.begunCD(2)当从句主语是It,谓语动词有含有系动词be时,可以把it系动词be一起省略。此时构成连词(if,unless,when,whenever)+形容词的结构。如:Unless(itis)necessary,you‘dbetternot
7、refertothedictionary.另外,我们还可以用so或not代替上文内容,此时可有if+so/not。Getupearlytomorrow.Ifnot(youdon’tgetupearly),youwillmisstheearlybus.Hemaynotbeathomethen,ifso(heisnotathome),leavehimanote.(3)在than或as…as引导的从句中,常含有一些成分在上下文清楚的情况下被省略。Hehasmadegreaterprogressthan(hedid)before/ever.He
8、camehomeearlierthan(hewas)expected.Sheworksashardasyoungpeople.二、在限定性定语从句中作宾语的关系代词that,which,whom可以省略;在