高三上学期英语一轮复习状语从句课件

状语从句一、时间状语从句1.When与while的区别：when从句可以是短暂也可以使延续动词。而while只能用延续性动词，译为“在某段时间里，在---期间”如：WhenIarrived,thetrainhadalreadyleft.Whenyoureadabook,you'dbettermakenotes.I’lllookafterthedogwhileyouareaway.(不用youleave)b.When的熟词生意：***既然：Whydoyoufindanewjobwhenyouhavehadawell-paidjob？***如果，倘若TopaytoseemoviesseemsfoolishwhenyoucanwatchonTVforfree.①…was/weredoing…when…（正在做…②..was/wereabouttodo…when（刚要做..突然）③…was/wereonthepointofdoing…when…(刚要做…突然)④…hadjustdone…when….(刚一…就)⑤Hardly/Scarcelyhad…done…when…(刚一…就)***---此时，届时---（5个句型）2.While与when的区别while的熟词生意：***1>侧重对比=whereasHelikespopmusicwhileIamfondoffolkmusic.***2>放句首：虽然、尽管Whileitisabest-seller,It’snotveryinteresting.3.till(until)和not…till(until)till(until):主句动词时延续性，常用肯定形式,意思是“到…为止"如：Heremainedtheretill/untilshearrived.not…till(until)…:主句动词是短暂性动词，常用否定式，意思是“直到…才”如：Shewon’tgotobedtill/untilhereturnshome.not…until还有强调式和倒装式：强调句：Itisnotuntilhereturnshomethatshewillgotobed.倒装句：Notuntilhereturnshomewillshegotobed.4.As一边---一边---；当---时候；表示随着短暂性动作的发生，另一动作伴随发生Theytalkedastheywalkedalongtheriver.他们沿着河边走边谈MycapwasblownawayasIstoodup.***Astimegoesby/Asthedaysgoesbywithtimegoingby5.before1>①.BeforeIcouldgetinaword,thetailorhadmeasuredme.

(还没来得及就)②Wehadn’trunamilebeforehefelttired.(还没…就)③.Wehadsailed4daysbeforewesawland.(…才…)④.Pleasewriteitdownbeforeyouforgetit.(趁还…没就)2>Itwas/willbe+一段时间+before...Itwastwoyearsbefore...过了两年才...Itwasnottwoyearsbefore...不到两年就...Itwillbetwoyearsbefore...还得两年才...Itwillnotbetwoyearsbefore...用不了两年就会...6.Since(eversince,强调since,翻译为：自那以后一直）Ihaven’tgonetoBeijingsinceIgraduated(连词）Ihavebeenlivinginthistownsince1998.(介词）Wehaven’tseeneachothereversince.(副词）句型：Itis/hasbeen5yearssinceIjoinedthearmy.Itwas/hadbeen5yearssinceIhadjoinedthearmy.***翻译方法：Ithasbeen5yearssinceIsmoked.Ithasbeen5yearssinceIwasanambassadortoFrance.7.BythetimeIgraduated,Ihadlivedherefor5years.

Bythetimehegraduatesnextyear,Iwillhavelivedherefor5years.(4)几个极易混淆的时间状语从句：Itwas+时间点+when…（当的时候时间是）Itwas5amwhenwearrivedatthevillage.Itwas/willbe+时间段+before..(没过..就／过了..才)Itwas/willbetwoweeksbeforewemet/meetagain.Itis/hasbeen+时间段+since…（自从…以来有…）Itis/hasbeen3yearssincewelastmet.突破点：一看be动词的时态，二看时间段还是时间点。二、原因状语从句1.because:能回答why;表示未知的原因2.as:表达的原因比较明显或是已知的原因Asitwasapublicholiday,alltheshopswereshut.Asitwasraininghard,wehadtobeindoors.3.since,nowthat,seeingthat,既然，由于（常放句首）如：Let’stalkfrankly,sincewearefriends.4.for,放主句之后，常用逗号隔开，起补充说明的作用Thedaybreaks,forthebirdsaresinging.5.Inthat当连词用Heisatrueteacherinthathealwayswantstolearn.***because可以用not否定，且可以用在强调句型中***不可用for引导sorry,glad,happy,delighted,pleased等词后的原因状语从句,用thatIamsorrythatIhaven’tansweredyourletter.地点状语从句：区别：Pleasemakeamarkwhere/whereveryouhaveanyquestions.Pleasemakeamarkattheplace

whereyouhaveanyquestions.Wherethereisawill,thereisaway.Wherethereisasmoke,thereisfire.四、目的状语从句1.Sothat/inorderthat从句中常用can/could等情态动词；inorderthat可以放句首，sothat只能放在主句之后。2.Forfear(that)生怕，以免;incase;以防万一，免得lest免得，生怕***从句经常用should,might,could+V原（意思是：万一会，以免会，唯恐会）Heranawaylesthe(should)becaught.3.a.incaseof在---情形时，万一Incaseofrain,thegamewillbecalledoff.b.(just)incaseadv.通常置于句末，以防万一Youshouldcarrysomemoneyjustincase.c.Forfearof(介词）以免，以防Shutthewindowforfearofcatchingacold.4.To,inorderto,soasto后面是接不定式的不是接句子的，要求主从句的主语必须一致。

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InordertoimproveEnglish,____.A.Jenny’sfatherboughtheradictionary.B.JennyboughtadictionaryC.AdictionarywasboughtbyJenny.***

Inordertomaketheearthabetterplacetolivein,____.MeasuresmustbetakentoprotecttheenvironmenttheenvironmentneedstobewellpreparedTheearthshouldbynomeansbefatherpollutedWeshoulddoallwecantoprotecttheenvironment六、条件状语从句if,unless(unless从句的谓语只能用肯定）只要：as/solongas;onlyif;onconditionthat

suppose/supposing/provided(that)Supposetheyrefuseus,whoelsecanweturntoforhelp?七、方式状语从句As,如同，正如Doasyouaretoldto.Leavethechildrenastheyare.2.Asif=asthougha.与事实相符不用虚拟语气b.虚拟语气看从句中对什么时间的虚拟，用法同wishSheactsasifsheweretheboy’smother.ShetalksaboutRomeasifshehadbeentherebefore.Sheopenedhermouthasifshewould/might/couldsaysomething.c.省略：Sheopenedhermouthasiftosaysomething.八、让步状语从句1.though/although注意用了虽然，就不能用but,但可以用yet,still2.Evenif=eventhough,即使，纵然3.as\though的倒装(五三P141)4.Nomatter“wh”(指引到让步状语从句）与“wh”ever（即可引导让步也可引导名词性从句）十、状语从句中4种倒装句式Notuntilhetookoffhisglasses