高中状语从句归纳

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1、状语从句状语从句在句中作状语，可分为：时间、条件、让步、原因、目的、结果、比较、地点、方式状语从句。一、时间状语从句引导时间状语从句的连词有：when,as,while,until,not…until,before,after,since,theminute,themoment,each(every,next,thefirst)time等。时间状语从句中一般用一般现在时或一般过去时。1.when,while,as都可解释为“当```的时候”但侧重点有所不同。(1)whenEg:WhenIarrivedhome,Ihadalittlerest.注意：when从句的主语与主句主语相同

2、，谓语动词是be动词时，从句主语和be可以省略。Eg:When(shewas)walkingalongthestreet,shemetherclassteacher.(2)as除了表示“当```的时候”，还可表示为“一面```一面”，“随着”Eg:Hesangashedanced.(一面```一面)Youwillgrowwiserasyougrowolder.(随着)(3)while表示“当...的时候”强调主句的动作和从句的动作同时发生，从句一般用进行时，从句动词必须是延续性动词。Eg:Whilewewereworking,theywerehavingarest.While(t

3、heywere)havingadiscussion,theygotveryconfused.注意：while有对比的含义，解释为“然而”。Eg:Ipreferblacktee,whilehelikescoffee.2.until,not…until表示“直到```才”，在肯定句中主句常用延续性动词；在否定句中主句常用短暂性动词。肯定句：Iwaiteduntilmidnight.否定句：Ididnotleaveuntilmidnight.注意11(1)notuntil…在句首，主句用倒装Eg:NotuntilyouhadexplainedhowdidImanagetodoit.(2

4、)Itisnotuntil…that…引导的强调句Eg:Itwasnotuntilitwasdarkthathecameback.3.theminute,themoment,eachtime都可表示“一```就```”Eg:Theworkerrecognizedthetypeofthemachinethemomenthesawit.注意：theminute,themoment,each(every,next,thefirst)time作连词不和when连用。4．Hardly/scarcely…when,nosooner…than,assoonas表示为“一```就```”Eg:I

5、hadhardly/scarcelygothomewhenitbegantorain.Ihadnosoonergothomethanitbegantorain.ItbegantorainassoonasIgothome.注意：Hardly/Scarcely…when,nosooner…than位于句首，主句用倒装Eg:HadIhardly/scarcelygothomewhenitbegantorain.NosoonerhadIgothomethanitbegantorain.二、条件状语从句条件状语从句分为两大类：真实条件句和虚拟条件句。引导条件状语从句的连词有：if,even

6、if/though,unless/if…not,aslongas/solongas,asfaras/sofaras,provided/providing(that),onconditionthat等。条件状语从句中如果主句是将来时，条件状语从句用一般现在时。1.unless和if…notunless相当于if…notEg:Youwillfailunlessyoustudyhard.Youwillnotfailifyoustudyhard.注意：在虚拟条件句中可用if…not，但不能用unlessEg:Ifshewerenottoosilly,shewouldunderstand.

7、2.引导条件状语从句的其它连词：Eg:Youmaygothere,aslongasyoukeepquite.Eg:Ishallgiveyouthebookonconditionthatyoureturnittomorrow.11Eg:Iwillgoprovidedthatyougotoo.三、让步状语从句引导让步状语从句的连词有：though,although,evenif/though,however,nomatterhow,nomatterwhat,nomatterwho等。