时间状语从句练习

时间状语从句练习1.Itwasquiet________thosebigtrucksstartedcomingthroughthetown.A.beforeB.afterC.untilD.unless2.Itseemedonlyseconds________theboyfinishedwashinghisface.A.whenB.beforeC.afterD.evenif3.Hardlyhadhereachedtheschoolgate________thebellrang.A.whileB.whenC.asD.assoonas4.Weweretoldthatweshouldfollowthemainroad_____wereachedthecentralrailwaystation.A.wheneverB.untilC.whileD.wherever5.Irecognizedyou________Isawyouattheairport.A.themomentB.whileC.afterD.once6.Hewasabouttogotobed________thedoorbellrang.A.whileB.asC.beforeD.when7.________Ilistentoyouradvice,Igetintotrouble.A.EverytimeB.WhenC.WhileD.Until8._____JohnwaswatchingTV,hiswifewascooking.A.AsB.AssoonasC.WhileD.Till9.Thechildrenranawayfromtheorchard(果园)______theysawtheguard.A.themomentB.afterC.beforeD.as10.NosoonerhadIarrivedhome_____itbegantorain.A.whenB.whileC.asD.than11.Severalweekshadgoneby_____Irealizedthepaintingwasmissing.A.asB.beforeC.sinceD.when12.It_____longbeforewe____theresultoftheexperiment.A.willnotbe;willknowB.is;willknowC.willnotbe;knowD.is;know13.–Whatwasthepartylike?--Wonderful.It’syears_____Ienjoyedmyselfsomuch.A.afterB.beforeC.whenD.since14.Thenewsecretaryissupposedtoreporttothemanagerassoonasshe_____.A.willarriveB.arrivesC.isgoingtoarriveD.isarriving15._____gotintotheroom_____thetelephonerang.A.Hehardlyhad;thenB.Hardlyhadhe;whenC.Hehadnot;thenD.Nothadhe;when16.Nosoonerhadhefinishedhistalk_____hewassurroundedbytheworkers.A.asB.thenC.thanD.when17.–DidyouremembertogiveMarythemoneyyouowedher?--Yes,Igaveittoher_____Isawher.A.whileB.themomentC.suddenlyD.once18.Ithoughtherniceandhonest_____Imether.A.firsttimeB.forthefirsttimeC.thefirsttimeD.bythefirsttime19.HewillhavelearnedEnglishforeightyearsbythetimehe_____fromtheuniversitynextyear.A.willgraduateB.willhavegraduatedC.graduatesD.istograduate20.Themomentthe28thOlympicGames_____open,thewholeworldcheered.A.declaredB.havebeendeclaredC.havedeclaredD.weredeclared答案：CBBBADACADBCDBBCBCCD状语从句的省略一般说来省略现象多出现在下列五种状语从句中：由when,while,as,before,after,till,until,once等引导的时间状语从句;由whether,if,unless等引导的条件状语从句;由though,although,evenif,whatever等引导的让步状语从句;由as,than等引导的比较状语从句;由as,asif,asthough等引导的方式状语从句。上述状语从句在省略时，并非任何成分都可以省略而是遵循下面原则：(1)当状语从句的主语与主句的主语一致时，可以省略状语从句的主语和系动词be，这时从句中可出现如下结构：①连词(as,asif,once)+名词如：Once(hewas)aworker,PangLongnowbecomesafamoussinger.庞龙曾经是个工人，现在变成一位著名的歌手。②连词(though,whether,when)+形容词如：Workhardwhen(youare)young,oryou'llregret.趁年轻要努力学习，要不然你会后悔的。③连词(whether,asif,while)+介词短语如：Helookedeverywhereasif(hewas)insearchofsomething.他到处看似乎在找什么东西。④连词(when,while,though)+现在分词如：While(hewas)holdingtalkswithPresidentHuJintao,USPresidentGeorgeW.BushthankedChinaforitsimportantroleintheSix-PartyTalks.美国总统布什在与胡锦涛主席会谈时，感谢中国在六方会谈中起的重要作用。⑤连词(when,if,evenif,unless,once,until,than,as)+过去分词如：Theexhibitionismoreinterestingthan(itwas)expected.这次展览比被预料的有趣的多⑥连词(asif,asthough)+不定式如：OlympicgoldmedallisthurdlerLiuXiangopenedhislipsasif(hewere)tospeak.奥林匹克金牌获得者跨栏运动员刘翔张开嘴好象要说什么。(2)当从句的主语是it，谓语动词中又含有系动词be时，可以把it和系动词be一起省略。此时构成连词(if,unless,when,whenever)+形容词的结构。如：Unless(itis)necessary,you'dbetternotrefertothedictionary.如果没有必要，你最好不要查字典。各种状语从句的省略现象列举如下：一、时间状语从句中的省略When(shewas)veryyoung,shebegantolearntoplaythepiano.她很小时，就开始学习弹钢琴。While(Iwas)atcollege,Ibegantoknowhim,astrangebutablestudent.我在上大学时就开始认识他，一个奇怪但有能力的学生。Whenarriving,sendmeatelegram.(Whenyouarrive,sendmeatelegram.)到达之后，来个电报。Beforeleaving,turnoffallthelights.(Beforeyouleave,turnoffallthelights.)走之前，请关闭所有的灯。Don’tcomeinuntil(youare)askedto.不叫你请你不要进来。Whenever(itis)possible,youshouldcomeandhelp.不管什么时候只要有可能就来帮忙。Youshouldletusknowtheresultassoonas(itis)possible.你应尽快让我们知道结果。注：as在引导时间状语从句时，没有这种省略现象。我们不可说Aswalking,shefoundaniceshiningthingontheground.二、地点状语从句中的省略地点状语从句的省略常用下列结构：where(ver)possible,where(ver)necessary,Laythesebookswherepossibleyoucanfindthemeasily.把这些书放在你可能容易找到的地方。Putinarticleswherevernecessaryinthefollowingpassages.在下列文章中需要的地方填入冠词。三、条件状语从句中的省略常用的句型是：ifnecessary,ifpossible,iftrue,ifanyone等。如：Sendthegoodsnowif(theyare)ready.货物如果准备好了，请送过来。Hewillcomeif(heis)asked.如果叫他来，他就来。If(itis)necessary,ringmeathome.如果有可能，朝我家里打电话。Comealongwithmeif(itis)possible.如果有可能和我一起去吧.。If(itis)true,thiswillcasueusalotoftrouble.如果是真的，这会给我们带来很多麻烦。Therearefewpeoplenowadays,if(thereare)any,whorememberhim.很少有人能记起他。Youshouldstaywhereyouare,unless(youare)askedtoleave.你应呆在你现在的地方不动，除非叫你动。四、让步状语从句中的省略Heisagoodman,thoughsometimes(heis)ratherdull.他真是个好人，尽管有时有点无聊。Evenif(Iam)invitedto,Iwon’tgotosuchabadlecture.即使邀我去，我都不想听如此坏的报告。五、比较状语从句中的省略Shecanplaythepianojustaswonderfullyasyou(do).她钢琴弹的我你弹的一样好。Shehasfinishedtheworkearlierthan(ithasbeen)expected.