中考英语 【高效课堂 精讲精研】 状语从句总结课件

状语是用来表示状况的一种句子成分，用来描述事情发生的时间，地点，方式，目的等状况HespeaksEnglishverywell.Icomespeciallytoseeyou.Sheusuallygetsupatseveninthemorning.Theboywaspraisedforhisbravery.Shesitsbythewindow,sewing.当充当状语的部分是一个句子时，也就是状语从句Whenshewas12yearsold,shebegantoliveinDalian.时间01020305070809种类0406地点原因结果条件让步比较方式目的1.定义：如果我们用一个从句来表达一件事情或一个行为发生的时间，那么这个从句就叫时间状语从句。2.引导词：时间状语从句when/while/as;before/after;until;tillsince;assoonas...eachtime/everytime/wheneverwhen/while/as当...时候When

youarecrossingthestreet,youmustbecareful.Ifeelveryhappywhenyoucometoseeme.①when意为“当……时”，引导的时间状语从句表示主句的动作和从句的动作同时或先后发生。②when引导的时间状语从句中，可以用延续性动词，也可以用短暂性动词。Herushedinwhiletheywerediscussingproblems.Whilehewasmakingaphonecall,Iwaswriting.①while意为“当……”时引导的时间状语从句表示主从句的动作在同一时期发生，常用延续性动词。注意：while也可以作并列连词，表转折的关系，相当于but，译为“然而”as:一边....一边......AsIwasdoingmyhomework,Iwasplayingonthephone.Astheywalked,theytalkedhappily.

由when/while/as引导的时间状语从句区别when引导的从句的谓语动词可以是延续性的，也可以是非延续性的。when（1）谓语动词必须是延续性的（2）主句和从句的动作同时发生（或者相对应）（3）有时还可以表示对比。whilewhenwhileas一般强调动作的同时发生，解释为“一边…一边…”asas1.IwaswatchingTV________mybrotherwaswritinganemailathomeatthistimelastnight.A．assoonas

B．afterC．whenD．while2.Iwascooking___Iheardsomeoneknockingatthedoor.A．assoonasB．whenC．untilD．while3.Rosewasdoingherhomework______thebellrang.A．assoonasB．whenC．untilD．whilebefore/afterBeforeclimbedthemountain,wedranksomemilk.“在……之前”，表示主句的动作发生在从句的动作之前AfterlivinginParisforthirtyyears,hereturnedtothesmalltown.“在……之后”，表示主句的动作发生在从句的动作之后1.Laurawenttoschoolbybike____shehadbreakfastathome.A．when

B．afterC．beforeD．while2.Pleasetakethemedicine_________yougotobed.A．whenB．afterC．beforeD．while3.Weshouldwashourhands_______wehavemeals.A.afterB.beforeC.whenD.sincetill/until1.直到....时候

Istayedhereuntiltherainstopped.主句肯定句，延续性动词2.直到.....才...Ididn’tgotobeduntilIfinishedmywork.主句否定句，

短暂性动词till多用于口语，且以下两种情况只能用until不能用till:(1)用于句首时。例如:UntilyoutoldmeIhadnoideaofit.在你告诉我之前，我对此事一无所知。(2)notuntil句首起强调。Notuntileleveno’clockdidwegethome.我们直到十一点才回家。Ihaven'theardfromJennysincesheleftmiddleschool.sinceItisfiveyearssincewemetlasttime.Ithasbeenfiveyearssincewemetlasttime.since意为“自从。。。”，表示主句的动作从过去某个时间开始一直延续到现在，所以主句必须用现在完成时，since从句用一般过去时。assoonas1.Iwillcallyou_________IgettoBeijing.A．before

B．whileC．sinceD．assoonasIwilldosomecleaningassoonasI________myhomework.A．finish

B．willfinishC．hasfinishedD．finishedassoonas意为“一……就……”，主将从现◆相当于assoonas用法的词或短语还有：immediately,directly,instantly,themoment,theminute,theinstant等.Wheneverhehastime,helikesplayingfootball.whenever/eachtime/everytimeEverytimeIheardtheotherstudentstalkingandlaughing,Ifeltevenmorelonely.

IalwaysdrinkcoffeewhenIwork.

Whenhegavemeapresent,Ithankedhim.

Wewillgooutforawalkwhentheweatherisfine.主现从不限主过从过主将从现since用现在完成时时间状语从句时态总结1.AuntLucywilltellussomethingabouthertriptoAustraliawhenshe______back.A.came

B.comes

C.wouldcome

D.willcome2.Theywon'tgohomeuntilthey_______theirwork.

A.finish

B.willfinishC.finishes

D.hasfinished3.Wewillhavethepartyiftheweather______fine.A.willbe

B.is

C.are

D.was4.Mr.LiuhastaughtusEnglish_____hecametoourschool.A.untilB.becauseC.thoughD.since5.__Isawthedeliverymancyclingtowardsme,Iknewthatwasmygift.A.AsB.AlthoughC.BeforeD.While原因状语从句复合句中表示动作发生原因的句子即为原因状语从句Hedidn’tcometoschoolbecausehewasill.As

itisraining,weshallnotgotothezoo.Since

youcan’tanswerthequestion,I’llasksomeoneelse.连接词语气位置（主句前/后）意义because最强后“原因”；表客观因果关系。as较强前“由于”；把众人所知的事实当作理由。since较弱前“既然”；就对方陈述的事实作为理由。注意：because和so不能同在一个句子中。because后面要跟从句，而becauseof后面跟名词短语条件状语从句1.定义：复合句中表示主句动作发生条件的句子即为条件状语从句2.引导词：

if/aslongas/unlessIfitdoesn’traintomorrow,we’llgotothepark.Ifyouwanttopasstheexam,youmuststudyhard.Ifyouseehim,pleasegivehimthisnote.if引导条件状语从句主祁从现主情从现主将从现注意：if在宾语从句中翻译成“是否”用动词的正确形式填空。1.Ifshe____(be)kindtome,I__________(notargue)withher.2.Iwanttoknowifhe________(come)tomorrow,ifhe_________(come),I__________(give)themassagetohim.unless引导条件状语从句Wewillclimbthemountaintomorrowunlessitrains除非，如果不unless=if…notAslongasyoudon'tgiveup,youwillsucceed.aslongas引导条件状语从句只要让步状语从句让步状语从句表示即便出现从句中的情况，主句动作仍然会发生，有退一步说的意思引导词：Iwilltryit,althoughImayfail.Though

hedidnothavemuchmoney,hewasstillhappy.althoughthoughevenif/though二者都可与yet，still连用，但不能与but连用结果状语从句结果状语从句用来补充说明主句动作发生所带来的结果引导词：so...that...such...that...Theboyissoyoungthathecannotgotoschool.ItissuchniceweatherthatIwouldliketogotothepark.so+adj/advthat....so+adj+a/an+nthat...so+many/much/few/little+nthatsucha/an+adj+nthat....suchadj+n.sthat...suchadj+ucthat...Theboyissoyoungthathecannotgotoschool.Thisissointerestingabookthatwealllikehim.Therewassomuchfoodthatwecouldn’teatthemall.ItissuchniceweatherthatIwouldliketogotothepark.注意：so...that...可与too...to../...enoughtodo...互换1.Hismotherwas_____busy____shecan’tlookafterTom.A.so,thatB.such,thatC.very,thatD.too,to2.Thereis____littlemoneythatIcan’tbuytheshirt.A.such B.soC.much D.many3.Hewas______angrythathecouldn’tsayaword.A.so B.tooC.very D.much4.Hewas____alittleboythateveryonetakescareofhim.A.soB.such C.manyD.much目的状语从句目