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时间:2019-05-19
《as与which引导非限定性定语从句》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、as与which引导非限定性定语从句用法首先,as和which都可以表示主句在意义上的连贯,在从句中作主语,或用作及物动词的宾语,如:Hemarriedher,which/aswasnatural.Iwasveryusefultohim,whichasherealized.但下列情况下as和which一般不能互换:1.as既可以指前面提到过的事实或情况,因此as可以放在句首、句末,也可以插入主句中,而which指前面提到的事实或情况,一般放在主句之后(有时也可用as),如:Asourteacherpointsout,thatbookisofbenefittoeveryone.Heatisafo
2、rmofenergy,asisknowntoallofus.Thismachine,asmightbeexpected,hasstoppedoperating.2.as含有正如、按照、正像之意,as一般用在肯定句中,而which则多用于含否定意义的句子中,如:Hefailedintheexamagain,aswasexpected.Hefailedintheexamagain,whichwasunexpected.3.当定语从句所修饰的主句内容是谓语动词的对象时,常用as,如:Jackwasadmittedintotheuniversity,aswehadexpected.4.下列固定结构,一
3、般不能用which,如:ashasbeensaidbefore如前所述asoftenhappens正像经常发生的那样asiswellknown众所周知aswillbeshowninFig3将如图3所示asweknow正如我们知道的那样"asmaybeimagined这可以想象得出来asweallcansee正如我们大家看到的那样5.当关系代词代表主句引起的结果,又做主谓宾补(svoc)结构中的主语时,多用which,如:Hesawthegirl,whichdelightedhim.Hedidn’tpasstheexam,whichmadehismotherangry.6.在从句中作介词宾语时,
4、用which,如:Wedidn’tgotothefilm,insteadofwhichwewenttothetheatre.7.在从句中作定语时,常用which,如:Itoldhertoseeadoctor,whichadviceshetook.8.在从句中代表主句中的谓语的整个概念时,常用which,如:HecanwritealetterinEnglish,whichIcannot.9.指代主句中一个名词时,多用which,如:Igavehimaninterestingbook,whichhestartedtoreadatonce.10.代替主句中的形容词时,常用which,如:Hethou
5、ghtmeimpatient,whichhehimselfwas. 练习(判断正误)1.Herperformancewaswonderful,whichwehadexpected.2.Hetoldusajoke,whichmadeallofuslaugh.3.Asiswellknowntousallthattheearthisround.4.Metalwillbearbeatingwithahammer,asastonewillnot.5.Hewasemigrated(移居)in1948,atwhichtimetherewasmuchhardshipandunrest.6.Mumalwayst
6、reatsmejustlikeababy,asIcan'tbear.7.Lincolnwasshotinatheatre,whichwasdescribedinthisbook.8.Hischildrenaskedhimtogoforarowwiththemintheafternoon,whichhepromised.9.Thisbook,asisimagined,isverygood.10.Dorothywasalwaysspeakinghighlyofherroleintheplay,which,ofcourse,madetheothersunhappy.Keys:1.×2.√3.×4.×
7、5.√6.×7.×8.√9.√10.√
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