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AdverbialClausesPetersogood制作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状从让步状语从句方式状语从句比较状语从句状语从句的省略时间状语从句1.when、while&as比较如果主句表示的是短暂的动作，而从句表示的是一段时间，三者通用。ImetMaryas／when／whileIwaswalkingalongthestreet．when可以和短暂性动词连用；而while和as只能和延续性动词连用。如：Itwassnowingwhenwegottotheairport.Whenheheardthenews,hegotangry.时间状语从句while可表示‘在…期间；在…过程中；与..同时’强调前后同时发生。WouldyoulookafterthechildrenwhileIdotheshopping?YoucangoswimmingwhileI’mhavinglunch.when特殊用法1.when表示“突然，正在那个时候”Sb.beabouttodo…when…Sb.beonthepointofdoing…when…Sb.hadjustdone…when…Sb.bedoing…when…Tomwaswalkingonthestreetwhenhecameacrossanoldfriend.2.AistoBwhatCistoD.Wateristofishwhatexerciseistothebody.3.When引导原因状语从句,“既然”=nowthatHowdoyoulearnanthingwhenyoudon’tlisten?while特殊用法1.while意为“而，却”，表示对比。Ilikeswimmingwhilemybrotherlikesplayingcomputergames.2.while可表示尽管，相当于although。Whilehedidn’tlikemaths,hestillworksveryhardonit.as特殊用法Theytalkedastheywalkedalongtheriver.（一边……一边）Astimegoesby,IlikeChinabetter.(as表示持续性动作；随着)。Youngasheis,heknowsalot.时间状语从句2.before/sinceItwon’tbelongbeforewegraduate.Itwillbe90daysbeforewegraduate.Itis/hasbeen5yearssinceIstartedlearningEnglish.Before其他句型Pleasewriteitdownbeforeyouforgetit.Wehadn‘trunamilebeforehefelttired.IwilldiebeforeIgivein.时间状语从句3.until/tillItisnotuntilhereturnshomethatshegoestobed.强调句=Shewillnotgotobeduntilhereturnshome.=Notuntilhereturnshomewillshegoestobed.倒装句Iwillwaithereuntil/tillyoucomeback.时间状语从句4.“一...就...”assoonas,hardly...when,nosooner...than,themoment/second/minute/theinstant，immediately,instantlyAssoonasIarriveinShanghai,I’llwritetoyou.Ihadhardlygothomewhenitbegantorain.=HardlyhadIgothomewhenitbegantorain.ThemomentIsawhimIknewtherewasnohope.时间状语从句5.every/eachtime,next/lasttime,bythetime,thefirsttimeEg.IfellinlovewithherthefirsttimeIsawher.注意区别：IcametoBeijingforthefirsttime.地点状语从句where,whereverWherethereisawill,thereisaway.Youcangowhereveryoulike.原因状语从句1)because回答why,表示直接原因；nowthat/since/as表示已知原因,常放句首；for在句中，顺带解释原因。seeingthat/consideringthat/inviewof鉴于，考虑到…Eg.Sinceeveryoneishere,let’sbeginourmeeting.Asyoudidn’tturnupatyesterday’sget-together,wemissedyouverymuch.Itmusthaverainedlastnight,forthegroundisstillwet.目的状语从句sothat=inorderthat;forfearthat=incaseEg.Youmustspeakloudersothat/inorderthatyoucanbeheardbyall.无逗号，为目的状语Hewrotethenamedownforfearthatheshouldforgetit.结果状语从句sothat,so...that,such...thatE.gWeturneduptheradio,sothateveryoneheardthenews.有逗号，为结果状语从句Heissoyoungaboythathecannotgotoschool.Heissuchayoungboythathecannotgotoschool.条件状语从句if,unless=if...not,as/solongas,incase(万一...),once(一旦)Eg.Weshallgotheretomorrowunlessitrains.=Weshallgotheretomorrowifitdoesn’train.IncaseIforget,pleaseremindmeaboutit.要是，如果，万一OnceIgethimajob,hewillbefine.让步状语从句although/though/as;while;evenif/though;wh-ever=nomatterwh-;whether…or…E.gYoungas/thoughheis,heknowswhattodo.Nomatterwhat/whateveryousay,Iwon'tbelieveyou.Whileitwaslate,IwasstillstudyingEnglish.Whetheryoubelieveritornot,Iwilltellyou.方式状语从句as按照、正如，what;asif/thoughEg.Aswateristofish,soairistoman.Wateristofishwhatairistoman.Doasyouaretoldto.Heactedasif(though)nothinghadhappened.比较状语从句as...as;notas/so...as;than;themore...themore...Eg.ItwasmoreinterestingthanIhadexpected.ItwasnotasinterestingasIhadexpected.Themoreyougive,themoreyouget.典型考题1.Howlongdoyouthinkitwillbe______wefinishthisdictionary?(2010·山东省5月高考模拟考试)A.afterB.beforeC.whenD.since2.Johnthinksitwon’tbelong_____heisreadyforhisnewjob.(2010·陕西)A.whenB.afterC.beforeD.sinceBC典型考题3.Theschoolrulesstatethatnochildshallbeallowedoutoftheschoolduringtheday,_____accompaniedbyanadult.(2010·山东)A.onceB.whenC.ifD.unless4.—HowlonghaveMr.Whiteandhiswifebeenmarried?—It’s8years_______theygotmarriedA.sinceB.whenC.afterD.beforeDA