牛津初中英语9B-状语从句讲解

,TheAdverbialClause,Mainlyrevision,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,Illtellher.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/suchthat6、让步状语从句although,though7、比较状语从句than,1.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。IllcallyouassoonasIcomeback.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。Wehaventseeneachothersinceheleft.,while/when辨析when/while+doinge.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=_)WhileIreallydontlikeart,Ifindhisworkimpressive.(while=_)Whilethereislifethereishope.(while=_),when,although,aslongas,but,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notuntil：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.2notuntil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.3till不可以置于句首，而until可以。如：UntilyoutoldmeIhadnoideaofit.,Dosomeexercise.,1._hecomesheretomorrow,Iwillcallyou.2._hewaswalkinginthestreet,hemetTim.3.Shesang_shecooked.4.Therewasanapplause_sheappearedonthestage.5.Itwontbelong_hefinisheshiswriting.,When,While/When,as,assoonas,before,6._hehadfinishedhiswork,heleftthere.7.Itistwoyears_hecamehere.8._shetoldme,Ihadnoideaofwhattheyhadsaid.9.Dontgetoffthebus_itstops.10.Hewaitedforher_6oclock.,After,since,Until,until,until/till,2.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。Youllcatchacoldunlessyouputonyourcoat.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._wedontloseheart,wellfindawaytoovercomethedifficulty.4._Iknow,youshouldnthaveanyproblemthere.5.Donttouchanything_yourteachertellsyouto.,If,Once,Aslongas,Asfaras,unless,Dosomeexercise.,3.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”。,nowthat,for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._Ididntknowtheway,Iaskedapoliceman.3._youwonthelpme,Illasksomeoneelse.4.Hemustbeill,_heisabsenttoday.,because,As,Since/Nowthat,for,4.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.,Where,there,Wherever,5.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。Heissoyoungthathecantgotowork.e.g.机会这样好以致于我们决不能错过它。Itssuchagoodchancethatwecantmissit.,1.Its_goodastorythatIllneverforgetit.2.Its_agoodstorythatIllneverforgetit.,so,such,so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,Idontbelieveit.3.Smart_heis,hedoesntstudyhard.4.Theoldtowermustbesaved,_thecostis.A.howeverB.whateverC.whicheverD.wherever,Although/Though,Eventhough(Evenif),as,Dosomeexercise.,7.比较状语从句比较状语从句常用than或asas，themorethemore等引导。than表示两者的比较，asas表示程度相同的比较；themorethemore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,as,theless,than,Dosomeexercise.,Theharder,thegreater,（）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.wherewillthe2008Olympicbeheld,B,C,A,C,（）5.Thisis_aninterestingbookthatIwanttoreaditagain.A.soB.suchC.quiteD.very（）6.Hegotupearly_hecouldcatchupwiththeothers.A.inordertoB.ToC.sot