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1状语从句练习易混引导词while,when,as的区别：1.when既可以指时间点,与瞬间动词连用，也可以指时间段，与延续性动词连用（=while）。如：Whenhecamein,hismotherwascooking.When(While)wewereatschool,wewenttothelibraryeveryday.While表示时间段,因此，while从句的谓语动词要用延续性动词。如：Pleasedon'ttalksoloudwhileothersareworking.As与when用法相似，但着重强调主句动作与从句动作同时发生，有随着……或一边……一边……之意。如：Asyougetolder,yougetmoreknowledge.随着年龄的增长，你获得的知识就越多。2．Because,as,since的区别：Because用于表示直接原因,回答why提出的问题，语气最强；As用于说明原因,着重点在主句，常译成由于；since表示显然的或已知的理由或事实，常译成既然。如：Waterisveryimportantbecausewecan'tlivewithoutit.Hedidn'tcomeyesterdayashismotherwasill.I'lldoitforyousinceyouarebusy.3．such…that,so…that,sothat引导结果状语从句的区别：such是形容词，修饰名词;so是副词，修饰形容词或副词。其结构如下：1)such+a(n)+形容词+单数可数名词+that……2)such+形容词+复数可数名词+that……3)such+形容词+不可数名词+that……。如：ThiswassuchagoodfilmthatIwenttoseeitseveraltimes.Itwassuchgoodbooksthattheysellwell.ItwassuchbadweatherthatIhadtostayathome.HespokesofastthatIcouldn'tfollowhim.Heissuchalovelyboythatwealllikehim.=Heissolovelyaboythatwealllikehim.注：在形容词+可数名词复数/不可数名词结构中，当名词前有many,much,few,little表示数量的多少时，名词前用so。如：Shemadesomanymistakesthatshedidn'tpasstheexam.【实例解析】1.Youwillstayhealthy_______youdomoreexercise,suchasrunningandwalking.A.ifB.howC.beforeD.where答案：A。该题考查的是引导状语从句的从属连词的选择。从意思上看，从句应是一个条件状语从句，在这四个选项中只有if能引导条件状语从句，所以选A。2.---Shallwegoonworking?---Yes,_________Iprefertohavearest.A.whenB.ifC.becauseD.though答案：D。该题考查的是引导状语从句的从属连词的选择。从意思上看，只有选though才能说得通。3.Noneofusknewwhathadhappened_________theytoldusaboutit.A.whenB.untilC.afterD.though答案：B。该题考查的是引导状语从句的从属连词选择。本句的意思是“在……以前我们没人知道这件事。”要表达着一意思应用“not…until”这一句型。4.---Ihopeyou’llenjoyyourtrip,dear!---Thankyou,mum.I’llgiveyouacall_________Igetthere.A.untilB.assoonasC.sinceD.till答案：B。该题考查的是引导状语从句的从属连词的选择。本题的意思是“一到那里，我就给你打电话。”要表达这个意思应选用assoonas。2一、选择合适的连接词，完成下列句子。1.Jimspendsalotofmoneyonbooks______heisnotrich.2.Katefellintosleep______shewaslisteningtothemusic.3.----IsDavidatschooltoday?----No.Heisathome______hehasabadcold.4.Wewon'thavesupper______mymothercomesback.5.Speaktohimslowly______hemayunderstandyoubetter.6.______shedoesn'tcomeonSunday,I'llgofishingbymyself.7.Itisfouryears______Ihadleftthatsmallvillage.8.______theairmoves,itiscalledwind.9.Wewillgotothepark______itdoesn'traintomorrow.10.______littleboysdid______muchwork.11.Therearefewnewwordsinthepassage______wecan'tunderstandit.12.Goback______youcomefrom.13.Hereachedthestation______thetrainhadleft.14.----Doyouhaveaswimmingpool?----No,wedon't.Atleast,not______big______yours.15.Givemeyourpaper______youhavefinishedit.16.Itisraininghard,______wehavetostayathome.17.______youworkharder,you'llneverpassthefinalexam.18.Lookaftertechildren______Iamout.19.Thevillageis______faraway______Ican'tgetthereonfoot.20.Thatis______aninterestingbook______Ican'tstopreadingit.二.单项填空1._______he’sold,hecanstillcarrythisheavybag.A.ThoughB.SinceC.ForD.So2.---Doyouknowifhe_______toplaybasketballwithus?---Ithinkhewillcomeifhe______freetomorrow.A.comes;isB.comes;willbeC.willcome;isD.willcome;willbe3.Inthezooifachild_____intothewaterandcan’tswim,thedolphinsmaycomeup______him.A.willfall;tohelpB.falls;tohelpC.willfall;helpD.falls;helping4.Idon’tremember________heworkedinthatcitywhenhewasyoung.A.whatB.whichC.whereD.who5.Wewillstayathomeifmyaunt________tovisitustomorrow.A.comesB.comeC.willcomeD.iscoming6.Thepoliceaskedthechildren_______crossthestreet________thetrafficlightsturnedgreen.A.not;beforeB.don’t;whenC.notto;untilD.not;after7.Iwaslateforclassyesterday_______therewassomethingwrongwithmybike.A.whenB.thatC.untilD.because8.I’llgoswimmingwithyouifI________freetomorrow.A.willbeB.shallbeC.amD.was9.Intheexam,the________youare,______the_______mistakesyouwillmake.A.careful;littleB.morecareful;fewestC.morecareful;fewerD.morecareful;less10.Youshouldfinishyourlessons_______yougoouttopaly.A.beforeB.afterC.whenD.while311.Ihurried_____Iwouldn’tbelateforclass.A.sinceB.sothatC.asifD.unless12.Whenyoureadthebook,you’dbettermakeamark_______youhaveanyquestions.A.whichB.thatC.whereD.though13.Theteacherraisedhisvoice_______allthestudentscouldhearhim.A.forB.sothatC.becauseD.inorder14.Hetookoffhiscoat_______hefelthot.A.becauseB.asC.ifD.since15.Itis______thatwe’dliketogooutforawalk.A.alovelydayB.toolovelyadayC.solovelyadayD.suchlovelyaday16.Maryhad______muchworktodothatshestayedatherofficeallday.A.suchB.soC.tooD.very17._______Ifeltverytired,Itriedtofinishthework.A.AlthoughB.BecauseC.AsD.Asif18.______thedaywenton,theweathergotworse.A.WithB.SinceC.WhileD.As19.______wellyoucandrive,youmustdrivecarefully.A.SolongasB.InorderthatC.NomatterhowD.Themoment20.Writetomeassoonasyou________toBeijing.A.willgetB.getC.gettingD.got三.根据中文意思完成下列英语句子1.不管他跟我开什麽玩笑，我都不生气。Iamnotangrywithhim,____________________jokeshe______onme.2.布鲁斯太太对学生非常亲切，以至于学生把她当做母亲。MrsBrucewas_______kindtoherstudents______they______her_____theirmother.3.只要我们竭尽全力，父母就会满意我们的表现。Ourparentswillbepleasedwithourperformance________________wetryourbest.4.你一到上海就给我打个电话好吗？Willyoupleasecallme__________________yougettoShanghai.5.这个七岁的女孩酷爱钢琴，以至于他已经坚持练习两年了。Theseven-year-oldgirllikesplayingthepiano__________________shehaskeptpracticingfortwoyear