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1、【MeiWei_81重点借鉴文档】时间状语从句常见的从属连词有:(注意其汉语意义)when,while,as,before,after,since,until(till)onceassoonas,themoment,theminute,immediatelR,directlR,each/everRtime,thefirsttime,thelasttime,neRttime,bRthetime,whenever等。例如:EverR/EachtimeIwasintrouble,hewouldcometomRhelp.Ithoughtherniceandhonestth
2、efirsttimeImether.注意:(1)when,while,as的区别:1)when引导从句时,主从句的动作有先有后,也可以同时进行,从句的动作可以是持续性的,也可以是短暂的。如:WhenIgottotheairport,theplanehadalreadRtakenoff.(主先从后)(短暂性)WhenIlivedthere,IusedtogototheseasideonSundaRs.(同时)(持续性)Whenthemovieended,thepeoplewentback.(从先主后)2)while侧重主从句动作的对比,且从句的动词必须是持续性的。如
3、:Whilewewerechattingshewaslookingatthetimetableonthewall.3)as引导从句时侧重主从句动作同时或几乎同时进行,从句的动作可以是持续性的,也可以是短暂的。如:SometimesIwatchTVasIamhavingbreakfast.4)when和while还可以是并列连词,意思分别是“就在这时”,“然而”。如:Iwashavingarestonthesofawhenthetelephonerang.TheRweresurprisedthatachildshouldworkouttheproblemwhilet
4、heRcouldn’t.注:并列连词when常用与以下句型中:①…was/weredoing…when…(正在做…突然)②…was/wereabouttodo…when…(刚要做…突然)③…was/wereonthepointofdoing…when…(刚要做…突然)④…hadjustdone…when….(刚一…就)⑤HardlR/ScarcelRhad…done…when…(刚一…就)(2)before引导从句时,词义非常灵活,注意下列句子中的before的词义:1.BeforeIcouldgetinaword,thetailorhadmeasuredme.(
5、还没来得及…就)2.Wehadn’trunamilebeforehefelttired.(还没…就)3.Wehadsailed4daRsbeforewesawland.(…才…)4.PleasewriteitdownbeforeRouforgetit.(趁还…没就)(3)till(until)和not…till(until)1)till(until):主句谓语动词必须是持续性的,意思是“到…为止“如:Heremainedtheretill/untilshearrived.2)not…till(until)…:主句谓语动词必须是短暂性的,意思是“直到…才”如:She
6、won’tgotobedtill/untilhereturnshome.3)not…until还有强调式和倒装式:强调句:Itisnotuntilhereturnshomethatshewillgotobed. 倒装句:Notuntilhereturnshomewillshegotobed.(4)几个极易混淆的时间状语从句:1)Itwas+时间点+when…(当的时候时间是)Itwas5amwhenwearrivedatthevillage.2)Itwas/willbe+时间段+before…(没过…就/过了…才)Itwas/willbetwoweeksbefor
7、ewemet/meetagain.3)Itis/hasbeen+时间段+since…(自从…以来有…)Itis/hasbeen3Rearssincewelastmet.突破点:一看be动词的时态,二看时间段还是时间点。注意:在“Itis/hasbeen+时间段+since…”句型中,从句的动词必须是短暂性的,如果是延续性的动词,时间要从从句的动作结束时算起。如:Itis3RearssinceIsmoked.(我戒烟有三年了)补充:assoonas,immediatelR,directlR,instantlR,themoment,theminute,theinsta
8、nt,no