牛津初中英语9B-状语从句讲解

用作状语的从句叫做状语从句。引导状语从句的关联词是一些从属连词。Whenyoucrosstheroad,youmustbecareful.当你过马路时要小心。（when是从属连词）IwaslatebecauseImissedthebus.我迟到了，因为我错过了公共汽车。（because是从属连词）Ifsheasksme,I’lltellher.她如果问我，我就告诉她。（if是从属连词）Youlookasifyouneedarest.你看起来好像是需要休息。（asif是从属连词）状语从句的种类1、时间状语从句when,while,assoonas,since,until,before,after2、条件状语从句if3、原因状语从句because4、地点状语从句where5、结果状语从句so/such…that6、让步状语从句although,though7、比较状语从句than1.时间状语从句引导时间状语从句的关联词常有：after,before,when,while,assoonas,as,since,until等。e.g.我吃完午饭后就去上学。IwenttoschoolafterIhadmylunch.e.g.他睡觉之前要先刷牙。Hebrushedhisteethbeforehewenttobed.e.g.等他回来吧。Waituntilhecomesback.e.g.他来时，我在做饭。Whenhecame,Iwascooking.e.g.我一回来就给你打电话。I’llcallyouassoonasIcomeback.e.g.他们回来前，我们已经完成工作了。Beforetheycameback,wehadfinishedthework.e.g.自从他离开后我们没见过面。Wehaven’tseeneachothersinceheleft.while/when辨析when/while+doinge.g.When/whilereading,hefellasleep.when+短暂性/延续性动词；while+延续性动词e.g.当老师进来时，我正在睡觉。Whentheteachercamein,Iwassleeping.=While/WhenIwassleeping,theteachercamein.when(就在这时)e.g.我正在睡觉，就在这时有人敲门了。Iwassleeping,whensomeoneknockedatthedoor.while的其他含义：WhileIwaswalkingdownthestreet,Icameacrossanoldfriend.(while=_______)Helikespopmusic,whileIamfondoffolkmusic.(while=_______)WhileIreallydon’tlikeart,Ifindhisworkimpressive.(while=_________)Whilethereislifethereishope.(while=___________)whenalthoughaslongasbut只要有生命在，就有希望。（一息若存，希望不灭）★as的常见用法：1.Shesangassheworked.一边……一边……2.YoumusttrytodoasIdid.像…..一样3.Asshewaslateforclass,shehadtosaysorry.由于※till,until和not…until：1.until/till引导时间状语从句用于肯定句时，主句的动词是延续性动词，表示动作或状态一直持续到until/till所表示的时间，意为“某动作一直延续到某时间点才停止”。如：我们一直等到他来。Wewaiteduntil/tillhecame.2．not…until用于否定句时，主句谓语动词是非延续性动词，从句为肯定，意为“某动作直到某时间才开始”。如：直到她回来我才开始看电视。IdidnotwatchTVuntilshecameback.3．till不可以置于句首，而until可以。如：UntilyoutoldmeIhadnoideaofit.1.______hecomesheretomorrow,Iwillcallyou.2.____________hewaswalkinginthestreet,hemetTim.3.Shesang____shecooked.4.Therewasanapplause___________sheappearedonthestage.5.Itwon’tbelong______hefinisheshiswriting.WhenWhile/Whenasassoonasbefore6.______hehadfinishedhiswork,heleftthere.7.Itistwoyears______hecamehere.8._______shetoldme,Ihadnoideaofwhattheyhadsaid.9.Don’tgetoffthebus_____itstops.10.Hewaitedforher________6o’clock.AftersinceUntiluntiluntil/till2.条件状语从句条件状语从句表示条件，关联词常用if或unless,as(so)longas,once,as/solongas，asfaras，等。Ifitsnowstomorrow,wewillmakeasnowman.如果明天下雪，我们就堆雪人。You’llcatchacoldunlessyouputonyourcoat.你会感冒的除非你穿上大衣。Hewilldoanythingaslongasitisinteresting.只要有趣，他什么都愿意干。1.___youtouchanEnglishperson,youshouldsay“sorry”.2.______theyaredirty,certainseasarenotabletocleanthemselves.3._____________wedon’tloseheart,we’llfindawaytoovercomethedifficulty.4.__________Iknow,youshouldn’thaveanyproblemthere.5.Don’ttouchanything_______yourteachertellsyouto.IfOnceAslongasAsfarasunless3.原因状语从句原因状语从句通常由because,as,since,for,nowthat,considering(that),seeing(that)等词引导。because语气较强，最适合用以回答why问句。as语气较弱，较口语化，所表示的原因较明显。(常放于主句之前)since语气较弱，常表对方已知的事实，相当于“既然”。nowthatfor虽然表示原因，但因语气比because弱得多，是可说可不说的话，只能位于主句之后。如果不是因果关系，而是对前面主语内容加以解释或推断时，只能用for。1.Idoit___________Ilikeit.2.____Ididn’tknowtheway,Iaskedapoliceman.3.________________youwon’thelpme,I’llasksomeoneelse.4.Hemustbeill,____heisabsenttoday.becauseAsSince/Nowthatfor4.地点状语从句地点状语从句由where,wherever等引导。e.g.医生建议我住在空气更新鲜的地方。Thedoctoradvisedmetolivewheretheairisfresher.e.g.你可以去任何你喜欢的地方散步。Youcantakeawalkwhereveryouliketo.1._______thereisawill,______isaway.2.___________theywent,theywerewarmlywelcomed.WherethereWherever5.结果状语从句结果状语从句常用so...that,such...that等关联词引导。e.g.他如此小以致于他不能上班。Heissoyoungthathecan’tgotowork.e.g.机会这样好以致于我们决不能错过它。It’ssuchagoodchancethatwecan’tmissit.1.It's_____goodastorythatI'llneverforgetit.2.It's______agoodstorythatI'llneverforgetit.sosuchso＋形容词＋冠词＋名词;such＋冠词＋形容词＋名词6.让步状语从句让步状语从句，表示“虽然，尽管，即使”等概念，常用的关联词有：though,although,eventhough等。Thoughhewasill,hestillcontinuedworking.他虽然有病，但仍然继续工作。Althoughitisdifficult,wehavetofinishit.此事虽难，但我们得完成它。Eventhoughyousayso,Idonotbelieveit.即使你这样说，我也不信。1.___________________heisold,heworkshard.2.___________________yousayso,Idon’tbelieveit.3.Smart___heis,hedoesn’tstudyhard.4.Theoldtowermustbesaved,_______thecostis.A.howeverB.whateverC.whicheverD.whereverAlthough/ThoughEventhough(Evenif)as7.比较状语从句比较状语从句常用than或as…as，themore…themore等引导。than表示两者的比较，as…as表示程度相同的比较；themore…themore…表示”越…越…”。e.g.那本书比这本有趣。Thatbookismoreinterestingthanthisone.e.g.他和我跑得一样快。HerunsasfastasIdo.e.g.这本书我越看越喜欢。ThemoreIreadthebook，themoreIlikedit．asthelessthan1.Hedoesn’tworksohard___youdo.2.Themoreyouworry,_______you’llsucceed.3.Shedidworseinthetest_____sheexpected.4.你越用功,进步就越大。___________youwork,____________progressyouwillmake.Theharderthegreater（）1.Theteacheraskedthenewstudent____classhewasin.A.whichB.whereC.howD.when（）2.Doyouknow___________afterschooleveryday?A.whatdoeshedoB.hedoeswhatC.whathedoesD.doeshedowhat（）3.Haveyoudecided__________withme?A.whowillyougoB.whowillgoC.whowentD.whodidyougo（）4.Heaskedme________________.A.whodidkickthefirstgoalintheWorldCupB.whenwastheAPECmeetingheldC.whenChinabecameamemberoftheWTOD.wherewillthe2008Olympicbehel