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定义：在复合句中由从句表示的状语称作状语从句，它可以用来修饰谓语（包括非谓语动词）、定语或状语，或是整个句子。类别:时间状语从句地点状语从句原因状语从句目的状语从句结果状语从句条件状语从句方式状语从句比较状语从句让步状语从句1.Wherethereisawill,thereisaway.()2.Nowthat/Sinceeverybodyishere,let’sbeginourmeeting.()3.Socleverwasheastudentthathewasabletoworkoutallthedifficultproblems.()4.Aslongasyoudon’tloseheart,you’llsucceed.()5.Tryashemight,hecouldnotfindajob.()6.Theoldladytreatstheboyasifhewerehisownson.()地点原因结果条件让步方式用when,while或as填空:1.__________________weweretalking,Mr.Smithscamein.2._______theycamehome,Iwascookingdinner.3.Iwasabouttogotobed_______Iheardsomeoneknockattthedoor.4.________wewerewatchingTV,hewasstudying.5.Heisfat_______hisbrotheristhin.6.______shesang,tearsrandownherface.While/As/WhenWhenwhenWhilewhileAsConclusionA:从句为”当……的时候”，从句谓语为延续性动词，主句谓语为终止性动词，三者可通用。B:当从句的谓语动词为终止性动词，只能用when；表示”正在那时”,也只能用when。C:从句和主句的谓语动词都为延续性动词时，只能用while；while还可作并列连词，表示“而”.D:当强调主句和从句的动作同点发生时，只能用as，译为“一边……一边……；随着……”Before与after1.Finishyourhomework________yougoouttoplay.2.Hehadleftthetowntheday________shearrived.3.Hehadwalkedthreedays________hefoundwater.4.Itwasnotlong_________helefthishometown.5.Iplayedfootball_______I(had)finishedmyhomework6.PleasetellherI’llcome_______Idosomeshopping.7.Itwillnotbelong________wemeateachotheragain.afterafterConclusion1.Before引导的从句是过去式,主句是过去时或过去完成时；而after主句为过去时，从句可用一般过去时代替过去完成时。2.Before与after还可作介词，后接名词或-ing形式。Beforefindingwater,hehadwalkedthreedays.Afterfinishingmyhomework,Iplayedfootball.beforebeforebeforebeforebefore“才”till与until1.Helivedwithhisparents__________hegraduatedfromcollege.2.Thechildrenwon’tcomehome__________it’sdark.3.______youtoldmeIhadnoideaofit.4.Not______hetoldmedidIknowthetruth.5.Itwas__________thewarwasoverthathereturnedtohisland.till/untilUntiluntil/tillnotuntilConclusion1.主句为肯定句时，主句的谓语动词应为延续性动词；当主句谓语动词为非延续性动词时，谓语动词应用否定式。2.位于句首时，只能用until，不用till。3.Notuntil引导的从句置于句首，主句采用部分倒装的结构。5.Till与until还可作介词，后接名词。Eg:Iwaitedtill/until3o’clock.until4.not…until可改写为：Itis/wasnotuntil…that…强调句。其它的时间状语从句:ill.1.I____________(be)athisbedsidesincehe________(become)ill.2.It_____________(be)twoyearssincewe_______(be)universitystudents.3._____________________________________(一……就……)hesawthemonster,heturnedpale.4.Thespyhad___________returnedhomethanhewastoldtogotoanothercountry.5.Wehad________returnedhomewhenitrained.6._________hadwebegunwhenwetoldtostop.havebeenbecameis/hasbeenwereThemoment/minute/AssoonasnosoonerhardlyHardlyConclusion1.since从句用过去时，主句一般用现在完成时。since+延续动词过去时，表示“从该动作结束起”。2.Itis/hasbeen…since+过去时3.一…就…：assoonas;themoment/theminute/theinstant;immediately/directly/instantly;hardly/scarcely/barely…when;nosooner…than…Whenever,Eachtime/Everytime每当Everytime/Eachtime/WheneverImeetwithtrouble,hewillcometohelpme.Thefirsttime第一次ThefirsttimeImethim,hewasaboyof12.Cf.:ThisisthefirsttimeI____________(see)thefilm.WhenImethimforthefirsttime,webecamefriends.Bythetime…到了…的时候（用过去完成时或将来完成时）Bythetimeshewastwelve,she_____________(learn)3,000Englishwords.Bythetimehecomesback,I____________________(finish)thework.haveseenhadlearntwillhavefinished用because,as,since与for填空:1.--Whyareyoucrying,meg?---_________I’vebrokenyournecklace,mom.2.Iwenttobedearly_________Iwastired.4.Iwasnotkindtohim,_________hewasrude.5.________Ihadacold,Iwasabsentfromschool.6.MymotherwasillandIsentforTom,_____hewasadoctor.7.________weareallhere,let’sbeginourclass.BecausebecausebecauseAsforSinceConclusionBecause:用于回答why的提问；引导从句，一般放在主句之后，表示直接原因。Since/As:常放在主句之前，表示众所周知的原因。For:并列连词，通常放在主句之后，侧重对主句的解释说明。now(that)（既然）,inthatif,unless(=ifnot),once,as/solongas(只要),supposing(如果),provided/providing(that)(如果，假设),given,onconditionthat,incase,lest(唯恐),forfearthat…1.________badweatherstopsme,Ijogeveryday.2.________Ihavetosellmyhouse,I’llhelpthosepoorchildrentogoonwiththeirstudies.3.I’llgo___________________yougo.4.________anythingimportanthappens,pleasecallmeup.5.IfI________(have)enoughmoneynextyear,IwillgotoEngland.6.IfI_______(be)abird,Iwouldflytoyou.7.Ifyou__________(leave)homealittleearlierthismorning,you____________________(catch)thebus.8.Ifthesun____________(rise)inthewest,I___________(change)mymind.9._____he_______(fall)throughtheice,hewouldhavedrowned.werehadleftwouldhavecaughtshouldrisewouldchangeHadfallenUnlessEvenifas/solongasIncasehave判断下列句子类型:1.Youwouldletyourchildrenplaywhereyoucanseethem.2.Youwouldletyourchildrenplayintheplacewhereyoucanseethem.Conclusion:where,wherever,anywhere,everywhereYoucan’tthrowawayrubbishanywhereyoulike.有志者事竟成。Wherethereisawill,thereisaway.无论你在哪里工作，都要全心全意为人民服务。Whereveryouwork,youmustalwaysservethepeopleheartandsoul.地点状语从句定语从句1.Hewentout,________itwasraining.2._________theyarepoor,theybuyagreatmanybooks.3._________Iamwillingtohelp,Idon’thavemuchtime.4.Strange_________itmayseem,heremainedsingleallhislife.5.Child____heis,hehaslearntadvancedmathematics.6.Nomatter______difficultyyouwillmeetwith,don’tgiveup.7.Nomatter______yougo,youmustwritetoyourparents.8.Nomatter______hardhetried,hecouldn’topenthedoor.9.Nomatter______youmarryinthefuture,hemustbeanhonestman.thoughAlthoughthoughaswhatwherehowwho1.Although多用于句首；while表“虽然”时，仅放于句首。2.Th