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AdverbialClauses1.WhileIwaswonderingatthis,ourschoolmastertookhisplace.()2.Wherethereisawill,thereisaway.()3.Nowthat/Sinceeverybodyishere,let’sbeginourmeeting.（）4.I’llspeakslowlysothatyoucanunderstandme.()时间地点原因目的判断下列状语从句的种类5.Socleverwasheastudentthathewasabletoworkoutallthedifficultproblems.()•6.Aslongasyoudon’tloseheart,you’llsucceed.()•7.Tryashemight,hecouldnotfindajob.()•8.Theoldladytreatstheboyasifhewerehisownson.()•9.Hewokeupassuddenlyashehadfallenasleep.()结果条件让步方式比较一个____在复合句中用作状语时,在语法上叫状语从句。从句由_______、________或_______引导。状语从句可分为：1)______2)_________3)______4)_________5)_______6)_________7)_______8)_________9)_______等句子时间地点原因目的结果条件方式比较让步名词词组从属连词副词一.时间状语从句的引导词1.when,while,as,before,after,until,till,since,eversince,once,assoonas，2.everytime,next/last/eachtime,thefirsttime,themoment,theminute,theinstant4.hardly…when,nosooner…than,scarcely…when3.immediately,instantly,directlywhen,while,as1._______________weweretalking,Mr.Smithscamein.2._____theycamehome,Iwascookingdinner.3.Iwasabouttogotobed_______Iheardsomeoneknockedatthedoor.4.________wewerewatchingTV,hewasstudying.5.Heisfat_______hisbrotheristhin.6.______shesang,tearsrandownherface.While/As/WhenWhenwhenWhilewhileAs连接词when、while、as的用法小结1、when的用法：（1）when引导的时间状语从句的谓语动词可以是延续的，也可以是表短暂性动作的动词，可用于主句和从句动作同时发生或从句动作先于主句动作。如：Whenthefilmended,thepeoplewentback.WhenIlivedthere,IusedtogototheseashoreonSundays.（2）可用作并列连词，其意义为“那时，这时”，相当于andatthis/thattime。常用于句式：Somebodywasdoingsomethingwhen…Sb.wasabouttodosth.when…(刚要……这时突然……)2、连接词while的用法（1）while意思是“当……的时候”或“在某一段时间内”，引导的从句动作必须是持续性的，侧重主句动作和从句动作相对比。Peopledon’ttalksoloudlywhileothersareworking.（2）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”.IwasreadingwhilehewaswatchingTV.3．as的用法：(1)as着重强调主句和从句的动作同时或几乎同时发生，如：Thestudentsroseastheteacherenteredtheclassroom.(2)as还可以表示“随着……”，如：Astimegoesby,itisgettingcolderandcolder.(3)As还能表示“一边……一边”，如：Helookedbehindfromtimetotimeashewent.4．如果主句表示的是短暂动作，而从句用延续性动作的进行时态表示在一段时间内正在进行的动作时，when,while与as可互换使用。如：When/While/AsIwaswalkingdownthestreet,Icameacrossanoldfriendofmine.Before的用法ItwillbehalfayearbeforeIcomeback.Itwon’tbehalfayearbeforewemeetagain.Wesailedfourdaysandnightsbeforewesawtheland.Wehadn’trunamilebeforehefelttired.肯定句“才”否定句“就”itwillbe+一段时间before......多久之后才...itwon’tbe+一段时间before......不久就....一…就…ill.1.__________________________________________hesawthemonster,heturnedpale.2、Thespyhad_________returnedhomethanhewastoldtogotoanothercountry.3、Wehad_______________returnedhomewhenitrained.4、_______________hadwebegunwhenwetoldtostop.Themoment/minute/Immediately/nosoonerhardly/scarcelyHardly/ScarcelyAssoonas5)nosooner…thanhardly/scarcely…when刚……就A.时态：主句用过去完成时（had+p.p.）从句用一般过去时B.倒装：nosooner/hardly/scarcely放句首，主句要到装Shehadnosoonerarrivedatthestationthanthetrainstartedtomove.Nosoonerhadshearrivedatthestationthan….Hehadhardlyenteredthehotelwhenitbegantosnow.Hardlyhadheenteredthehotelwhenitbegantosnow•考点:名词短语引导时间状语从句•1.WheneverytimeIwasintrouble,hewouldcometohelpme.•2.Atnexttimeyoucome,dorememberbringyoursonhere.•3.ForthefirsttimeImetthegirl.Ifeltinlovewithher.•4.Youarewelcometocomebackatanytimeyouwantto.•5.AtthelasttimeshesawJames,hewaslyinginbed.•everytime,eachtime,nexttime,thefirsttime,anytime等名词短语引导状语从句不加介词。二.地点状语从句:where,whereverYouwouldletyourchildrenplaywhereyoucanseethem.Whereveryouare,Iwillberighttherewaitingforyou.where指“在某个地方”，wherever指“无论哪里，在任何一个地方”在使用时：一、要注意两者的含义区别。二、要注意状语从句和定语从句的区别。三、要注意在状语从句中不可使用介词+which引导。出题者既考状语从句又考定语从句和状语从句的区别。还加入名词性从句这一干扰项。1.Ifyouaretraveling____thecustomsarereallyforeigntoyourown，pleasedoastheRomansdo.A.inwhichB.whatC.whenD.where2.Inpeace，too，theRedCrossisexpectedtosendhelp___thereishumansuffering.A.whoeverB.howeverC.whateverD.wherever3.--Mom，whatdidyourdoctorsay？--Headvisedmetolive____theairisfresher.A.inwhereB.inwhichC.theplacewhereD.whereDDD三、原因状语从句原因状语从句的引导词有：because,as,sincenowthat（既然）,consideringthat（考虑到）,seeingthat（由于）用because,as,since与for填空:1.--Whyareyoucrying,meg?---________I’vebrokenyournecklace,mom.2.Iwenttobedearly_______Iwastired.3.Iwasnotkindtohim_________hewasrude.4.__Ihadacold,Iwasabsentfromschool.5.MymotherwasillandIsentforTom,___hewasadoctor.6.____weareallhere,let’sbeginourclass.BecausebecausebecauseAsforSinceConclusion:1.because直接原因，非推断．语气最强．回答why2.since表示“既然”，语气较弱；强调对方已经知晓，无需加以说明的原因，只可以放在句首。3.As“由于”，语气最弱，表示往往是十分明显的原因，常放在句首，比较口语化。4.For放句中，对前面一句话的内容的补充说明。四.条件状语从句:引导条件状语从句的连接词有:if,unless,as/solongas（只要）,sofaras(据我所知…),incase,onconditionthat(条件......),provided(that)(假设），等1、TheWTOcannotliveuptoitsname____itdoesnotincludeacountrythatishometoonefifthofmankind.A．aslongasB．whileC．ifD．eventhough2、Itisknowntoallthat_____youexerciseregularly,youwon’tkeepgoodhealth.A.unlessB.aslongasC.althoughD.ifCAConclusion:1.条件状语从句中,如果主从句都表将来动作，主句用将来时态，从句用一般现在时态.Ifyoudon’thurryup,youwillmisstheplane.2、unless相当于ifnot，意思是“除非…”“如果不就…”。Wecan’tgetthereontimeunlesswebooktheearliestflight.=Wecannotgetthereontimeifwedon’tbooktheearliestflight.as/solongas,asfaras,incase1、___________Icansee,thereisonlyonepossiblewaytokeepawayfromthedanger.2、IalwaystakesomethingtoreadwhenIgototh