状语从句可以根据其用途分为：时间状语从句、地点状语从句、原因状语从句、结果状语从句、目的状语从句、条件状语从句、让步状语从句Whenhecamein,Iwascooking.他进来时，我在做饭。HecameinwhileIwascooking.Shesangassheworked.一边……一边……When+短暂性动词（常+一般过去时）While+持续性动词（常+过去进行时）As动作衔接紧密，表“伴随”1.when,while,as“当…时”※while的其他含义：WhileIwaswalkingdownthestreet,Icameacrossanoldfriend.(while=_______)Helikespopmusic,whileIamfondoffolkmusic.(while=_______)whenbut2.before在……前ItwillbehalfayearbeforeIcomeback.Ihadfinishedmyhomeworkbeforemyfathercameback.After在…之后AfterIhadfinishedmyhomework,myfathercameback.3.since“自从”（常用于现在完成时）从他离开后我们没见过面。Wehaven’tseeneachothersinceheleft.4.assoonas”一…就…”我一回来就给你打电话。I’llcallyouassoonasIcomeback.主将从现5.not…until“直到…才…”我将不会离开直到他回来。Iwillnotleaveuntilhecomesback.主将从现Ididnotleaveuntilhecameback.1.______hecomesheretomorrow,Iwillcallyou.2.________hewaswalkinginthestreet,hemetTim.3.Shesang____sheworked.WhenWhile/Whenas4.I’llringyouup_____________IgettoBeijing.assoonas5.Itwon’tbelong______hefinisheshiswriting.6.______hehadfinishedhiswork,heleftthere.7.Itistwoyears______hecamehere.8._______shetoldme,Ihadnoideaofwhattheyhadsaid.beforeAftersinceUntilwhenbeforeassoonasnot…until二.地点状语从句地点状语从句由where,wherever等引导。例如：•Wherethereisawill,thereisaway.•Youcantakeawalkwhereveryouliketo.三原因状语从句通常由because,since,as,for引导所表示的语气由because>since>as>for逐渐减弱。because表直接原因,有很强的因果关系,回答“why”的提问，since表很明显的原因,“既然”常放句首，as表明显原因，语气较弱。for放句中，补充说明原因。Eg:-Whyareyoulate?-Becausemycarisbroken.Sinceyoucan’tanswerthisquestion,Iwillcallothers.Asit’sraining,weshouldstayhere.Youcan’tseetheteacher,forheisn’tin.1._________hewasill,hedidn’tgotoschool.2._______youdonotunderstand,Iwillexplainagain.3.____shewaslateforclass,shehadtosaysorry.4.Hemustbeill,_____heisabsenttoday.BecauseSinceforAs5.Ieatpotatoes_________Ilikethem.我吃土豆是因为我喜欢土豆。6.____Ididn’tknowtheway,Iaskedapoliceman.我由于不知道路，因而问警察。7._______youwon’thelpme,I’llasksomeoneelse.你既然不帮我，那我就请别人帮我。becauseAsSince★becauseof和because的区别①becauseof后加名词代词或动名词，不加句子，而because加句子，例：Becauseofhisillness,hedidn’tgotowork.因为生病，他没上班。Becausehewasill,hedidn’tgotowork.连接词：if,unlessIfIhavealotofmoney,Iwillbuyabighouse.主将从现四条件状语从句如果除非Thesportsmeetingwillcontinue,unlessitrainstomorrow.1.___youtouchanEnglishperson,youshouldsay“sorry”.If2.Don’ttouchanything_______yourteachertellsyouto.unlesswhenbeforeassoonasnot…untilIfunlesssothat/inorderthat引导目的状语从句,从句中常用情态动词may(might)/can(could)\/should.Eg:我提高声音以便每个人都能听见我。Iraisedmyvoicesothateveryonecouldhearme.我起床早是为了能赶上早班车。IgotupearlysothatIcouldcatchuptheearlybus.1.Theysetoutearly________________theymightarrivethereintime.2.I’dliketoarrive20minutesearly_______Icanhavetimeforacupoftea.A.assoonasB.asaresultC.incaseD.sothatsothat(inorderthat)so…that/such…thatEg:他是如此的兴奋以至于说不出一个字。Hewassoexcitedthathecouldn’tsayaword.他讲了一个如此有趣的故事，以至于我们忘了时间。Shetoldussuchaninterestingstorytha...
