中考英语状语从句复习课件

TheAdverbialClause复习要点1.时间状语从句2.条件状语从句3.比较状语从句4.结果状语从句5.原因状语从句6.目的状语从句7.让步状语从句8.方式状语从句9.地点状语从句TheAdverbialClause状语从句在复合句中修饰主句中的动词、形容词或副词，起状语作用的从句叫状语从句。状语从句可置主语之前，也可置主语之后。前置时，从句后用逗号与主句分开；后置时，与主句之间无标点符号。命题主要集中在引导状语从句的连词、状语从句的时态等方面；从九大状语从句来看，应将复习重点放在时间状语从句、条件状语从句、目的状语从句、结果状语从句和比较状语从句上。1.时间状语从句引导时间状语从句的连词有：while,when,as,assoonas,till,until,not…until,before,after,since,etc．1）when，while，as①when可表动作同时发生或先后发生，从句动词延续非延续都行。如：Whenhefinishedthework,hehadalittlerest．while表动作同时发生，从句动词必须可延续。如：Pleasekeepquietwhileshewassleeping．as表动作同时发生；从句动词延续非延续都行，常指一边…一边，as还可以说明两种正发展或变化的情况，有“随着”的意思，表时间的推移。如:Hesangashewentalong．AsIgetolder,Ihavemoreconfidence.2)before,afterbefore“在……之前”。after“在……之后”。如：Theyhadalreadyhadbreakfastbeforetheywenttoschool.Theytalkedaboutthepartyafterthepeopleleft.(2010.衢州中考)Youshouldgooveryourtestpaper_____youhanditin.A.beforeB.thoughC.assoonas1.Hewasworkingatthetable__Iwentin.A.whenB.whileC.assoonas2.Mymotherwascooking__Iwasdoingmyhomework.A.whenB.whileC.before3.___thedaywenton,theweathergotworse.A.WhileB.WhenC.As4.Summerishere,andthewarmthismakingussleepy,butpleasestayawake__ourteachersaretalking.A.whileB.sinceC.before•3)until,till•until和till•在肯定句中译为•“直到……为止”，主句要用延续性动词•在否定句中译为•“直到……才”，主句动词不受限，常用终止性动词，这时till和until可用before替换。如：•Iwaitedtill／untilhearrived．•Wewon'tstartuntilBobcomes．•=Wewon'tstart_____Bobcomes．before1.He___tothebeduntilhismothercameback.A.didn’tgoB.wentC.goes2.Youcan___hereuntiltherainstops.A.comeB.getC.stay3.Wewon’tknowtheimportanceofhealth___ithasgone.A.whenB.untilC.before4.---Lifeislikeaboxofchocolates.---Isee!We’llknowthetasteoflife_______we’veeatentheboxofchocolates.A.whenB.untilC.before•4)assoonas•表示主句发生的动作发生在从句动作之后，意为“一…就…”。如：•MybrotherwentoutassoonasIgothome.•I'llphoneyouassoonasIarriveinBeijing.•5）since：•表示“自从…以来”，从句中常用____时，主句用____________________时,主句动词要用_________动词.（对since引导的时间状语提问要用howlong).如：•WherehaveyoubeensinceIsawyoulasttime？过去一般现在时或现在完成可延续性1．Itistenyears______Isawyoulasttime.A．sinceB．whenC．thatD．if2．Youshallhavethebook______Ihavereadit.A．sothatB．thoughC．assoonas注意:时间状语从句的时态1）主将，从现（when,before,after,until,assoonas引导从句时）：Theboywillbeawriterwhenhegrowsup.2)主情，从现：Whenthelightsarered,thetrafficmuststop.3)主祈，从现：Pleasedon’tgotobedbeforeyoufinishyourhomework.•4)主句为一般现在时，从句也用现在范畴的时态：•IoftenreadafterIgetupinthemorning.•5）主句为一般过去时，从句也用过去范畴的时态：•IlikedreadingwhenIwasyoung.•ShewaswatchingTVwhileIwasreading.1.Wewillsetoutassoonasourmonitor___.A.comesB.comingC.willcome2.Youcanstayhereuntiltherain___.A.stopB.stopsC.isstopping3.Whenyou__theoffice,you’dbetter__thatthelightsareturnedoff.A.willleave;makesureB.willleave;makesureC.leave;makesure4.Motherdidn’tgotobeduntilshe_____cleaningtheroom.A.finishesB.finishedC.isfinished5.IoftenwatchTVwhenmymother___.A.iscookingB.cookC.cooked6.---Doyouknowwhenhe___?---Whenhe____,Iwilltellyou.A.willcome;comesB.comes;comingC.comes;willcome2.条件状语从句1)引导条件状语从句的连词有if（如果）、unless（除非）等，条件状语从句也像时间状语从句一样，如果主句用将来时，从句要用现在时代替将来时。如：Whatshallwedoifitsnowstomorrow?Don’tleavethebuildingunlessItellyouto.2)unless在意义上相当于if．．．not。Youwillfailunlessyoustudyhard．（同义句）=Youwillfailifyoudon'tstudyhard．3)aslongas只要Iwillgothereaslongasheinvitesme.4）“祈使句+and(or)+陈述句”在意思上相当于条件状语从句。例如：Hurryup,oryou’llbelate.=Ifyoudon’thurryup,you’llbelate.Studyhardandyouwillpasstheexam.=Ifyoustudyhard,youwillpasstheexam.5)用介词with,without可以把条件状语从句改写成简单句：Ifthereisnowater,thefishmaydie.=Fishmaydiewithoutwater.Ifyouhelpme,I’llfinishmytaskontime.=Withyourhelp,I’llfinishmytaskontime.1.Idon’tknowifhe__tomorrow.Ifhe__,I’llmeethim.A.willcome;comesB.comes;comesC.willcome;willcome2.______yougaveapartyandnoonecome,whatwouldyoudo?AAlthoughB．IfC.Unless3.youwon'tpasstheexam___youworkhard.AAlthoughB．IfC.Unless4.—Canyouguessifthey___speakingEnglishwithus?—Ithinktheywilldoifthey___free.A.willpractice,areB.willpractice,willbeC.practice,will5.Yourdreamwon’tcometrue__youknowwhatyourdreamis.A.afterB.unlessC.if3.比较状语从句比较状语从句通常由as…as,比较级+than…等连词引导，比较连词前后的结构要一致。TomrunsfasterthanJohndoes.Thisclassroomisasbigasthatone.1）表示甲与乙在某一方面相同时肯定：“as＋原级＋as”句型；否定：“notas／so＋原级＋as”如：DalianisasbeautifulasShenzhen．Idon'trunas／sofastasLucy．=IrunlessfastthanLucy.2）表示甲超过或不及乙时，用“比较级＋than从句”（从句中常省略意义与主句相同的部分。Herunsfasterthanyou（do）．Todayislesscoldthanyesterday．=Todayisn’tascoldasyesterday.原级比较需要注意的几个用法：1.表示“是……的几倍”句型倍数/分数/百分数+as+形容词原级+as翻译下列句子(课本链接)他们的学校是我们的三倍。Theirschoolisthreetimesaslargeasours.我的英语还不如你的一半。MyEnglishisnothalfasgoodasyours.2.表示“尽可能……”句型as+形容词原级+aspossible=as+形容词原级+assb.can/could句型转换（中考链接）Hewasasfastaspossible.Hewas______fastashe______.ascould比较级需要注意的几个用法：1.形容词比较级之前可用_____________________________________等词来修饰.翻译下列句子：⑴我不能走的更远了。⑵他比以前更慢了。()30,000dollarsisalargeamountofmoney,butit’s_______thanweneed.A.farmoreB.verymuchC.farless()Ifeel__betterthanyesterday.A.moreB.veryC.muchIcan’twalkanyfarther.Heisevenslowerthanbefore.（中考链接）cCmuch,even,any,far,alot,alittle2.表示“比……大(长、多)几倍”句型倍数+形容词比较级+than同义句句型倍数+as+形容词原级+as例：句型转换（中考链接）Theirschoolisthreetimesaslargeasours.Theirschoolis____________________ours.()Theearthisabout____asthemoon.A.fiftytimesasbigB.asbi