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1、高考英语之状语从句知识梳理及考点扫描种类连接词注意点时间状语when,whenever,while,as,before,after,until,till,bythetime,assoonas,hardly…when,nosooner…than,themoment/theminute/immediately/directly/instantly主句表示将来意义时，从句须用一般现在时；while引导的从句中动词一般是延续性的；until用在肯定句中主句动词是延续性的，而否定句中主句动词为短暂性的。地点状语where,wherever原
2、因状语because,as,since,nowthat（既然）because语气最强，since较弱，表示大家都明了的原因，as又次之。条件状语if,unless,once,as(so)longas,（只要）onconditionthat,provided(that)，suppose/supposing（假设），从句中动词时态不可用将来时，常用一般时代替目的状语sothat,inorderthat,forfearthat，lestincase（万一）sothat和inorderthat后常接may,should,could,wou
3、ld等情态动词结果状语sothat,so…that,such…thatso+形容词或副词+that；such+名词+that。比较状语than,as…as,notso/as…as,themore…themore方式状语asif/asthough（好像）,asasif和asthough从句一般用虚拟语气。让步状语though,although,evenif/eventhough,nomatterwhat/who/which/how/whenwhatever,whoever,whichever,however,whenever,as,
4、whether…or,while(虽然)as在让步状语从句中常用倒装形式；although和though可和yet/still连用，但不可和but连用；如果主句用一般将来时，从句通常用一般现在时代替一般将来时。★使用状语从句时要注意的几个问题1、注意时态替代We’llgooutingifitdoesn’traintomorrow.I’llwritetoyouassoonasIgettoShanghai.2、注意省略现象As(hewas)ayoungman,hewasastorekeeperandlaterapostmaster.I
5、f(itis)necessaryI’llexplaintoyouagain.3、注意区分不同从句。如：以where为例，能引导多种从句Youaretofinditwhereyouleftit.（地点状语从句）Tellmetheaddresswherehelives.（定语从句，句中有先行词）Idon’tknowwherehecamefrom.（宾语从句）Wherehehasgoneisnotknownyet.（主语从句）Thisplaceiswheretheyoncehid.（表语从句）状语从句难点考点大扫描考点一：时间状语从句【
6、考例1】Hetransplantedthelittletreetothegarden_____itwasthebesttimeforit.(05上海)A.whereB.whenC.thatD.until解析句意为：在最合适的时候，他将小树移植了。【考例2】-I’mgoingtothepostoffice.-______you’rethere,canyougetmesomestamps?A.AsB.WhileC.BecauseD.If(99全国)解析虽然as和while都可表示“在……期间”，但as要与动作动词连用，而本题的“are
7、there”是状态，不是动作，只能用while，故选B。【考例3】Theyoungmostlyenjoypopmusic_______theoldusuallypreferclassical.A.WhenB.BecauseC.WhileD.After【考例4】Someonecalledmeupinthemiddleofthenight,buttheyhungup______Icouldanswerthephone.(2000全国)A.asB.sinceC.untilD.before解析句意为：有人半夜打来电话，但是我还没来得及接，
8、对方就挂了电话。before的本意为“在……之前”，根据具体语境还可理解为“还没来得及/还没有……就……。【考例5】Weweretoldweshouldfollowthemainroad_______wereachedthecentralrailw
