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1、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯最新资料推荐⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯状语从句用法详解在主从复合句中修饰主句的动词、形容词、副词等的从句叫状语从句。一时间状语从句:起时间状语作用的从句。when,while,as,after,before,until/till,since,assoonas,immediately,themoment,everytime,whenever等。1.when,while,as1)when“当......的时候”,表示主从句的谓语动作同时发生或先后紧接着发生。IwasveryhappywhenIhear
2、dfromyou.Whenyoudealwiththem,youshouldbecautious.WhenIwasyoung,Iwenttotownmyself.(延续性动词)Whenthefirebrokeout,allthestudentsweresleepingsoundly.(非延续性动词)Asayoungman(=Whenhewasayoungman),hewasfondofhunting.2)while引导的时间状语从句中谓语动词必须是延续性动词或表示状态的动词,侧重主句动作和从句动作相对比。Myfatherwaspreparingarepo
3、rtwhileIwasplayinggames.Pleasedon'ttalksoloudwhileothersareworking.3)while意为“虽然,尽管”,还能引导让步状语从句.Whileitwaslate,hewentonworking.(虽然很晚了,但他还在继续工作.)Whileheisinpoorhealth,heworkshard.(虽然他身体不好,但他还是努力工作.)4)连接两个并列句子,表示“对比”关系.例如:Hewentoutforawalk,whileIstayedathome.他出去散步了,而我却呆在家里.)Ilikesin
4、gingwhileshelikesdancing.(我喜欢唱歌,而她喜欢跳舞.)Youlikesports,whileIprefermusic.5)as表示从句和主句的两个动作交替进行或同时发生,可译为“一边......,一边......”或“随着......。”Hehurriedhome,lookingbehindashewent.Astimegoeson,it'sgettingwarmerandwarmer.注意:如果主句表示的是短暂动作,而从句用延续性动词的进行时态表示在一段时间内正在进行的动作,when,while与as可互换。When/Whil
5、e/AsIwaswalkingdownthestreet,Icameacrossanoldfriendofmine.2.till,until和not...until1)until/till肯定句:主句的谓语动词必须是延续性动词,主句、从句都为肯定式,意为“某动作一直延续到某时间点才停止”。Heremainedthereuntil/tillshearrived.Youmaystayhereuntil/tilltherainstops.2)否定句:主句的谓语动词必须是非延续性动词,从句为肯定式,意为“某动作直到某时间才开始”。构成not...until/ti
6、ll,意为“直到......才”。Shedidn'tgotobeduntilIcomeback.Don'tworry.Wewon'tsetoffuntilyouarrive.1⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯最新资料推荐⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯3)till不可以置于句首,而until可以。Untilyoutoldmethenews,Ihadnoideaofit.4)not...until句型中的强调和倒装用法。强调句型:ItwasnotuntilyoutoldmethatIhadanyideaofit.倒装句型:Notunti
7、lyoutoldmedidIhaveanyideaofit.(notuntil置于句首,主句要用部分倒装结构)Notuntiltheclockstruck12didsherealizeshemustgohomeatonce.3.before1)before“没有来得及......就”“未......就”“......就......”Someonecalledmeupinthenight,buttheyhungupbeforeIcouldanswerthephone.Theyhadtalkedonlyafewminutesbeforetheyfoundth
8、eywerequitedifferentinopinion.2)before作“