时间状语从句AdverbialClause状语从句的分类根据意义上的不同,英语状语从句分为时间状语从句地点状语从句原因状语从句目的状语从句结果状语从句条件状语从句方式状语从句让步状语从句比较状语从句时间状语从句时间状语从句的引导词when,while,as,before,after,since,until,till,assoonas,once,hardly…when,nosooner…than,whenever等before一、含义1.Wehadsailedfourdaysandfournightsbeforewesawland.2.Wehadn’trunamilebeforehefelttired.3.BeforeIcouldgetinaword,hehadmeasuredme.才…就…不等…就…before/when/since/thatItwas8pm.______theygottothevillage.Itwas8hours_____theygottothevillage.It’salongtime_____Imetyoulast.Itwasat8pm.______theygottothevillage.whenbeforesincethat小结1.一些词,如themoment,theminute,theinstant,等也可引导一个时间状语从句,相当于assoonas的意思。Hejumpedoffthecouchthemomentthetelephonerang.2.immediately,directly,instantly,也可引导时间状语Theyphonedmeimmediatelytheyreachedhome.3.hardly…when,scarcely…when,nosooner…than引导时间状语,相当于assoonas的意思。如果hardly或nosooner或scarcely置于句首,句子必须用部分倒装结构。主句使用过去完成时,从句使用一般过去时。HardlyhadIgothomewhenitbegantorain.4.一些含有time的名词短语,如everytime,eachtime,nexttime,thefirsttime等,以及theday,theyear,themorning等,也可引导一个时间状语从句。Thedayhereturnedhome,hisfatherwasalreadydead.Nexttimeyoucome,pleasebringyourcomposition.Homework1.Gooverthekeypoints.2.Finishtheexercisesfortheadverbialclause.while1)Iliketeawhileshelikescoffee.2)Whiletheyaremyneighbors,Idon’tknowthemwell.3)Whilethereislife,thereishope.然而(对比)尽管(句首)只要as1)Asyouweren'tthereIleftamessage.2)YoungasIam,IalreadyknowwhatcareerIwanttofollow.3)DoasIsayandsitdown.4)Asachild,hewashopelessatmaths.因为(句首)尽管(倒装)以...方式当...的时候(省略结构,常保留名词)