初中英语状语从句课件1

状语从句Ⅰ1.Whatisit?•用来修饰主句或主句的谓语2.whatarethesorts?•时间状语从句•条件状语从句•地点状语从句•原因状语从句•让步状语从句•目的状语从句•结果状语从句•比较状语从句1.时间状语从句时间状语从句关联词as/when/while;after;before;since;till/until;whenever;nosooner…than/hardly…when副词immediately;名词短语themoment;theminute;thesecond;each(every)time;theday(year);nexttime;thefirst(second/last)time;bythetimeExamples:•When/As/Whilehewaseatinghisbreakfast,heheardthedoorbell.•IthasbeentwoyearssinceIcametoBeijing.•Wheneverwemetwithdifficulties,theycametohelpus.•IgotintouchwithhimimmediatelyIreceivedhisletter.•Mysistercamethemomentshegotmymessage.•EverytimeIcatchacold,Ihavepaininmyback.•从句动词为非延续性动词:Theboycriedwhenhesawhismother.•从句动词为延续性动词:while强调“在……的同时”as强调“伴随”的状态，“一边…一边…”TomfellasleepwhileJerrywasgivingalecture.Hesangashewentalong．辨析：when/while/aswhenwhile,as,when均可时间状语从句的破题方法判断主句和从句动作的延续性非延续性：when延续性：when,while,as同时while伴随as1.Hetransplantedthelittletreetothegarden____itwasthebesttimeforit.（2007上海）A.whereB.whenC.thatD.until2.—AreyoureadyforSpain?—Yes.Iwantthegirlstoexperiencethat____theyareyoung.(2008上海)A.whileB.untilC.ifD.before真题演练（1）until/till延续性动词+肯定语气：到……为止e.g.Walktillyoucometoawhitehouse.非延续性动词+否定语气：到……才开始not…untile.g.Wedidn’tbeginourdiscussionuntilhecameback.其他引导词：真题演练1.Agoodstorytellermustbeabletoholdhislisteners’curiosity_______hereachestheendofthestory.（2003上海）A.whenB.unlessC.afterD.until2.Myuncle___untilhewasforty-five.（2000上海）A.marriedB.didn'tgetmarriedC.wasnotmarryingD.wouldmarry(2)•once,themoment,assoonas•表示“一…就…”•e.g.Oncehegoes,wecancleanup.(3)•before,after•表示时间的先后•e.g.Ifoundhispenafterhehadleft.真题演练1.Adozenideaswereconsidered____thearchitectdecidedonthedesignofthebuilding.（2006上海）A.becauseB.beforeC.whetherD.unless两种since的句型since：①.主句用现在完成时（或现在完成进行时）时，从句中用一般过去时e.g.I’velivedheresinceIcametoBeijing.②.Itis(hasbeen)…..+since+一般过去时ItisfiveyearssinceIbegantolearnEnglish.“自…以来”扩展练习1.Thatwasreallyasplendidevening.It’sbeenyears____Ienjoyedmyselfsomuch.A.whenB.thatC.beforeD.since2.They___friendssincetheymetinShanghai.A.havemadeB.havebecomeC.havebeenD.haveturned2.条件状语从句逻辑关系：引导词：e.g.Youwillnotpasstheexamunlessyouworkhard.=Youwillnotpasstheexamifyoudon’tworkhard.假设①if,unless(ifnot)②在……条件下：aslongase.g.AslongasIgetmyfather’spermission,I’llgo!条件状语从句题的破题方法1.读题，确认从句和主句2.分析从句和主句之间的逻辑关系（正面条件/反面条件）3.根据逻辑关系选择合适的引导词正面条件：if,aslongas反面条件：if…not,unless正面条件真题演练1.Smallsailboatscaneasilyturnoverinthewater_____theyarenotmanagedcarefully.（2007上海）A.thoughB.beforeC.untilD.if2.____thereisasnowstormorsomeotherbadweather,themailalwayscomesontime.（2007上海春季）A.BecauseB.IfC.WhenD.Unless反面条件3.地点状语从句常用引导词:_________特殊引导词:________________________________①Airwillbeheavilypollutedwheretherearefactories.②Whereveryougo,youshouldworkhard.③DoyouknowanywhereIcanbuyasecond-handcomputer?④HefollowsmeeverywhereIgo.wherewhereveranywhereeverywhere•Wherethereisawill,thereisaway.______________________•无论你去哪里,我都去。______________________Whereveryougo,Igotoo．有志者事竟成。真题演练4.原因状语从句(1)引导原因状语从句的连词有_________________________(2)because,since,as,for用法比较：because:e.g.---Whyareyoulate?---Becausethereisatrafficjam.becausesinceasnowthat语气最强，回答why时用because，所表示的是直接理由，因果关系不能同so连用。since/nowthat:e.g.Sinceyouhavegotenoughmoneywithyounow,youcancomeandbuyitnexttime.as:e.g.Ashehadbeenreadyfortheworst,hewasnotdisappointedattheresult.“既然…..”表对方已知的事实或理由，常放在句首。“由于….”语气较弱，较口语化，表明显的原因或已知的事实，常放在句首。for:e.g.Itmusthaverainedlastnight,forthegroundiswet.语气最弱，不能放在句首。______everybodyknowsaboutit,Idon’twanttotalkanymore.（2009上海）A.ForB.EvenC.SinceD.However真题演练状语从句Ⅱ敬请期待：