比较讲解练习题突破状语从句

1三大从句之一：典型例句突破状语从句前言：学习状语从句的几个关键点1）引导状语从句的连词及意思2）状语从句与主句的时态照应提高学生掌握：----3）有关状语从句的重点句型。4）状语从句的省略一．各种状语从句的典型例句1．条件状语从句：引导条件状语从句的词（组）主要有if,unless,so(as)longas,注意：条件从句中的if不能用whether替换。提高掌握：onconditionthat,so(as)faras,ifonly(=if)。1）Let'sgooutforawalkunlessyouaretootired.()即：Ifyouaretootired,we’llnotgooutforawalk.2）Youmayborrowmybookaslongasyoukeepitclean.()提高掌握：3）Icantellyouthetruthonconditionthatyoupromisetokeepasecret.(-)4）Supposingitrains,shallwecontinuethesportsmeeting?()5）Youwillbesuccessfulintheinterviewonceyouhaveconfidence.()2.时间状语从句：表示时间的状语从句可由when,as,while,whenever,after,before,till(until),since,once,assoonas提高学生掌握：(或themoment),bythetime,everytime等引导。1）Whenshecamein,Istoppedeating.(当---的时候，表示“瞬时动词”)2）Whilemywifewasreadingthenewspaper,IwaswatchingTV.(当---的时候，wasreading是延续性的动词，wasreading和waswatching同时发生)3）Ilikeplayingfootballwhileyoulikeplayingbasketball.（然而，表示“对比”）4）Aswewasgoingout,itbegantosnow.（as强调句中两个动作紧接着先后发生，而不强调开始下雪的特定时间）5）Wealwayssingaswewalk.（as表示“一边……一边”）6）Einsteinalmostknockedmedownbeforehesawme.(“在---之前”或“----才”)7）Afteryouthinkitover,pleaseletmeknowwhatyoudecide.（在---之后）8）Ididn'tgotobeduntil（till）myfathercameback.(“直到----才”，主句中的动词为非延续性动词)9）Iworkeduntilhecameback.(“直到----才”，主句中的动词为延续性动词)10)WherehaveyoubeensinceIlastsawyou?(自从---)11)AssoonasIreachCanada,Iwillringyouup.(一----就---)2提高学生掌握：12)EachtimehecametoHarbin,hewouldcallonme.(“每当---的时候”或“每次”，复习eachtime,everytime和whenever)13)Iwillgothereimmediately,Ihavefinishedmybreakfast.(一----就---，另外有instantly)14)ThemomentIheardthenews,Ihastenedtothespot.(一----就---，另外有theinstant,theminute，ect.)15)Bythetimeyoucameback,Ihadfinishedthisbook.(“到---时为止”，从句是一般过去时，主句是过去完成时。)提高学生掌握：．有关时间状语从句的重点句型1）Itwillbefourdaysbeforetheycomeback.(Itwillbe---before---过很久才----)2）Itwon’tbefourdaysbeforetheycomeback.(Itwon’tbe---before---不久就---)2）ItwasnotuntilthemeetingwasoverthathebegantoteachmeEnglish.(“Itwasnotuntil---that----”notuntil的强调句型)3)Itis/hasbeenfivemonthssinceourbosswasinBeijing.我们老板离开北京有五个月了。(“Itis/hasbeen---since”自从---以来多长时间)4)HardlyhadIsatdownwhenhesteppedin.我刚坐下，他就进来了。（“hardly/scarcely----when---”/同“nosooner---than”注意时态的应用。）3．原因状语从句；原因状语从句是表示原因或理由的，引导这类从句的最常用的连词是because,since,as,nowthat（既然）等，for表示因果关系时（它引导的不是从句）为并列连词，语气不如because强。1)Thesweatershrankbecauseitwaswashedbadly.(强调“直接原因”)2)Since[As]we’venomoney,wecan’tbuyit.（由于）3)Sinceyouarefreetoday,youhadbetterhelpmewithmymathematics.（“既然”强调双方共知的原因,4）Hecouldnothaveseenme,forIwasnotthere.(for引导的原因状语从句并不说明主句行为发生的直接原因，只提供一些辅助性的补充说明，for引导的原因状语从句只能放于主句之后并且必须用逗号将其与主句隔开。)4结果状语从句由sothat（从句谓语一般没有情态动词），so…that,such…that等引导Shewasill,sothatshedidn’tattendthemeeting.Hewassoexcitedthathecouldnotsayaword.Sheissuchagoodteacherthateveryoneadmiresher.35．目的状语从句引导目的状语从句最常用的词（组）是so,sothat（从句谓语常有情态动词）=inorderthat,incase（以防，以免）等。1）Youmustspeakloudersothat/inorderthatyoucanbeheardbyall.(为了；以便)2.Speakclearly,sothattheycanunderstandyou.3）Bettertakemoreclothesincase(以免)theweatheriscold.6．让步状语从句让步状语从句可由although,though,as,evenif(though),提高掌握：however,whatever,注意：as引导的让步状语从句一般是倒装的。1）Although/Thoughhewaswornout,(still)hekeptonworking.(虽然，纵然,尽管)2)We’llmakeatripevenif/thoughtheweatherisbad.(“即使……”)提高掌握3)Hardas/thoughheworks,hemakeslittleprogress.(虽然，纵然，尽管)4)Childas/thoughhewas,heknewwhatwastherightthingtodo.(虽然，纵然，尽管)5)Nomatterwhoyouare,youmustkeepthelaw.(=Whoeveryouare,youmustkeepthelaw.（无论谁，复习nomatter+疑问词引导的状语从句。）6）WhileIlikethecolour,Idon'tliketheshape.（尽管）7．方式状语从句YoumustdotheexerciseasIshowyou.二．状语从句的省略：状语从句的省略原则主要是：如果从句中的主语和主句中的主语一致，就可以经过一定的变动把状语从句中的主语和谓语的一部分或全部省略，或从句中是itis,可以把itis省略，从而使语言更加简洁、明了。现就把各种状语从句的省略现象列举如下：1.While(Iwas)atcollege,Ibegantoknowhim,astrangebutablestudent.2．Don’tcomeinuntil(youare)askedto.3．Whenever(itis)possible,youshouldcomeandhelp.4．Putinarticleswherever(itis)necessaryinthefollowingpassages.5.Hewillcomeif(heis)asked.6.Evenif(Iam)invitedto,Iwon’tgotosuchabadlecture.7.Shehasfinishedtheworkearlierthan(ithasbeen)expected.4状语从句巩固练习题：一：基础巩固对比练习题第一组：()1Themeetingdidn'tstart___everyonewasthere.A.becauseB.untilC.whyD.if()2Theboy___tobed___hismothercamein.A.wentnot;untilB.didn'tgo;afterC.went;untilD.didn'tgo;until()3Iwon'tbelieveyou___Ihaveseenitwithmyowneyes.A.beforeB.untilC.afterD.when()4Tomwillcallmeassoonashe___Shanghai.A.arrivesB.willreachC.arrivesinD.getto()5I'msurehe'llcometoseemebeforehe___Beijing.A.willleaveB.isleavingC.leaveD.leaves()6Iwilltellhimthenewsassoonashe___back.A.comeB.comesC.willcomeD.came第二组：()7Tomhasgotawatch.He___itfortwoyears.It_______byhisfather.A.hasbought;wasboughtB.hasgot;isbought,C.wasbought;hasbought.D.hashad;wasbought'8We___TVwhenthetelephone____.A.watched;wasringingB.werewatching;rangC.watch;ringsD.arewatching;rang第三组：()9I___youforalongtime.Where___you___?A.didn'tsee;did;goB.didn'tsee;have;goneC.haven'tseen;have;beenD.haven'tseen;have;gone()10Tom___Chinafor3years.A.hasbeenB.hasbeeninC.hasbeentoD.hasbeenat()11Iwon'tgotoseethefilmtonight,becauseI___myticket.A.lostB.havelostC.willloseD.didn'tlose()12-Hello!MayIspeaktoBob?-Sorry,buthe___foramonth.A.hadbeenawayB.wasleftC.leftD.hasbeenaway()13I___himsinceIb