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1、状语从句状语从句状语从句由从属连词引导,从属连词在从句中不充当成分.根据从句表达的意思不同,可分为时间,地点,原因,条件,目的,结果,让步,比较等状语从句.一、状语从句分类及常用连词类别连 词时间地点原因目的结果条件让步比较方式when,whenever,while,as,before,after,since,till,where,whereverbecause,since,as,for,nowthat,inorderthat,sothat,incase,forfearthatso…that,sothat,
2、such…that,if,unless,as(so)longas,though/although,evenif/though,whatever,as…as,so…as,than,themore…themoreas,asif/though,justas1易混、易错点(1)when/as/whileHehurriedhome,lookingbehind______hewent.______youhaveseenhim,youwouldbehappy.______Iwaswaitingforthebus,Imetwit
3、hafriend.总结:1)as表示主从句动作___发生,译成_______2)while从句只能跟_____动词,常用______时3)when从句既可用延续性动词,又可以用瞬间动词aswhenwhile同时一边---一边延续性进行时间状语从句1.1①when除表示:“当…时候”外,还有“那时(忽然),这时(忽然)”.常用下列句型:was/weredoing…when正…忽然was/wereaboutto…when正要…忽然hadjustdone…when刚…忽然就e.g.wewereabouttosetoff
4、onourwaywhenitsuddenlybegantorain.②when还有“既然”解,引导原因状语从句。e.g.Itwasfoolishofyoutotakeataxiwhenyoucouldeasilywalkthereinfiveminutes.1.2while用法小结①.引导时间状语从句.while从句的谓语动词通常是持续性动词.Pleasedon’ttalksoloudwhileothersarestudying.②.表对比关系.“而、却”Helikespopmusic,whileIamfondo
5、ffolkmusic.③.引导让步状语从句.表示“虽然”(though/although)WhileIunderstandyourviewpoint,Idon’tagreewithyou.④.引导条件状语从句,意为“只要”(aslongas).Whilethereislife,thereishope.(2).①until/till“直到……止”(肯定句,主句是延续性动词);②not…until“直到……才”(否定句,主句是终止性动词);③until可用于倒装句和强调句,till不用于句首。NotuntilIret
6、urneddidshefinishherhomework.ItwasnotuntilIreturnedhomethatshefinishedherhomework.Exercises:1)—Washisfatherverystrictwithhimwhenhewasatschool?—Yes.Hehadneverpraisedhimhebecameoneofthetopstudentsinhisgrade.A.afterB.unlessC.untilD.When2)Simonthoughthiscomputerw
7、asbroken________hislittlebrotherpointedoutthathehadforgottentoturniton.untilB.unlessC.afterD.becauseCA(3).thetime(当……的时刻),themoment/minute/second/instant(一…就…),nexttime(下次),thefirsttime(第一次…的时候),thelasttime(上次…的时候),immediately/instantly/directly(一…就…)等词或词组可引导
8、表示时间的状语从句;表示习惯性动作的词如:everytime(每次),eachtime(每次),whenever(每当)等也可引导表示时间的状语从句。Exercise:—DidyouremembertogiveMarythemoneyyouowedher?—Yes,Igaveittoher_______Isawher.A.whileB.themomentC.suddenl