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第页第07讲预习九上:时间、条件和原因状语从句掌握并正确使用时间状语从句、条件状语从句和原因状语从句在复合句中,做状语成分的从句叫状语从句。常见的状语从句可分为:时间、条件、地点、原因、方式、让步、比较、结果、目的等从句,由不同的引导词引导。考点一:时间状语从句引导词用法例句whenwhen引导的时间状语从句中既可接延续性动词,也可接非延续性动词,多用一般过去时TheyweretalkinghappilywhenIwalkedpastthedoor.当我从门前走过,他们正在开心地聊天。whilewhile强调主句和从句动作同时发生,所引导的时间状语从句只能用延续性动词,多用进行时态。MymotherwascookingwhileIwasdoingmyhomework.当妈妈在做饭的时候,我在做作业。not…until主句的谓语动词为非延续性动词,主句要用否定式,从句用肯定式。Thebuswon’tstartuntileverybodygetson.公共汽车直到每个人都上车才会发动。since主句谓语动词一般用现在完成时,从句谓语动词一般用一般过去时。Fiveyeashaspassedsincewesaweachotherlasttime.距离我们上次见面已经五年过去了。beforebefore引导的从句表示主句的动作发生在从句动作之前。Weturnedoffthelightbeforeweleft.我们在离开前关了灯。afterafter引导的从句表示主句的动作发生在从句动作之后。Hewenttobedafterhefinishedhiswork.他做完工作后就去睡觉了。assoonas若主句为一般将来时,从句常用一般现在时表将来。IwilltellhimthenewsassoonasIseehim.我一看见他,就会告诉他这个消息。考点二:条件状语从句条件状语从句的引导词主要有if和unless,两者可转换。在条件状语从句中,从句常用一般现在时表将来,即主将从现。如:Youwillfailtheexamifyoudon’tworkhard.=Youwillfailtheexamunlessyouworkhard.如果不努力学习,你考试会不及格的。考点三:原因状语从句原因状语从句的引导词有because,since,as等。注意:1.because和so不能同时使用。如:Hedidn’tcometoschoolyesterdaybecausehewasill.他昨天没来上学,因为他生病了。2.since引导原因状语从句表示显然的或已为人知的理由,表示“因为,既然”如:sinceeveryoneishere,let’sstart.既然大家都到期了,我们就开始吧。考点一:时间状语从句1.(2022秋·辽宁沈阳·九年级沈阳市第一二六中学校联考期末)Mr.Brownhasworkedinthisschool________hewas22yearsold.A.for B.since C.until D.when2.(2022秋·辽宁沈阳·九年级统考期末)Georgedecidedtochangehisjob.Hewillliveahardlife________hefindsanotherjob.A.while B.until C.when D.after3.(2022秋·辽宁沈阳·九年级沈阳市杏坛中学校考期末)IwaitedforTim________hewasdoinghishomework.A.sothat B.unless C.while D.although4.(2022秋·湖北武汉·九年级校考期末)—What’swrongwithyou,madam?—I’velostmyvaluablewatch.Butaweekhadgoneby________IknewitwasmissingA.since B.before C.while D.until5.(2022秋·安徽合肥·九年级统考期末)Wewerenotgoodfriends________wesaweachother,butdaybyday,wegotalongbetterandbetter.A.until B.when C.if D.so6.(2022秋·天津滨海新·九年级统考期末)Thecleverboycalled120________hismotherfelldowninthekitchen.A.although B.assoonas C.until D.sothat7.(2022秋·天津河北·九年级统考期末)Thedoctordidn’thavearest________theoperationwasover.A.because B.until C.if D.sothat考点二:条件状语从句8.(2022秋·辽宁沈阳·九年级统考期末)Tomwillnotgetthespecialgiftunlesshe________allthetasks.A.finish B.willfinish C.finished D.finishes9.(2023秋·湖北武汉·九年级武汉一初慧泉中学校考期末)—Mom,shallweputthemeatinthefridgenow?—Yes,sweetie,itwon’tkeep__________weputitinthefridgeonsuchhotdays.A.although B.whether C.unless D.since10.(2022秋·上海浦东新·九年级上海市实验学校校考期末)________allofuscanlearntolove,everythingarounduswillbeawonder.A.Because B.If C.Before D.Although11.(2021秋·河北石家庄·九年级统考期末)IfI________togoabroad,I’llgotoBritain.A.allow B.amallowed C.wasallowed D.willallow12.(2022秋·江苏盐城·九年级校考期末)Theairpollution________worseunlesswe________actiontoprotecttheenvironment.A.is;willtake B.willbe;willtake C.willbe;take D.won’tbe;take考点三:原因状语从句13.(2022秋·江苏宿迁·九年级校考期末)—Whataheavysnow!Howcanwegotoworktoday?—________itissnowingheavily,let’swalkinsteadofdriving.A.Because B.Since C.As D.Though14.(2022秋·辽宁沈阳·九年级统考期末)Annadoesnotwantfriedfoodandsoftdrinks________theyareunhealthy.A.unless B.because C.though D.before15.(2021秋·广西玉林·九年级统考期末)Hedidn’tcometotheparty________hehadalotofworktodo.A.because B.although C.so D.unless16.(2023·甘肃白银·统考中考真题)Let’swait________therainstops.A.so B.while C.since D.until17.(2022·青海·统考中考真题)Chinesepeopleweresoexcited________theShenzhou-13wassuccessfullylaunchedintospace.A.when B.why C.how18.(2022·吉林长春·统考中考真题)Ididn’tunderstandmymom’slove________wehadalongtalk.A.until B.if C.since D.because19.(2022·辽宁·统考中考真题)Teenagersshoulddosomehousework________theyfinishtheirhomework.A.until B.but C.after D.unless20.(2022·黑龙江·统考中考真题)—Idon’tknowwhenSusan________.—Don’tworry.Whenshe________,Iwilltellyou.A.comes;willcome B.willcome;comes C.come;comes21.(2022·湖北十堰·统考中考真题)Toavoidthevirus(病毒),weshouldwashhandsmorecarefully________wehavemeals.A.so B.before C.because D.although22.(2022·天津·统考中考真题)Beforeyougetoffthebus,youshouldwait________ithasstopped.A.until B.but C.because D.so23.(2022·湖南岳阳·统考中考真题)Iwillreturnittothelibrary_______IfinishreadingLittleWomen.A.nolonger B.assoonas C.sothat24.(2022·江苏扬州·统考中考真题)________astronautsgoonspacewalks,theywearspacesuitstokeepthemselvessafe.A.Though B.Till C.When D.Unless25.(2022·重庆·统考中考真题)Theyhavebeenfriends________theyfirstmet.A.since B.while C.before D.after26.(2023·湖南岳阳·统考中考真题)Youwon’tpassthePEexamsuccessfully________youexerciseeveryday.A.if B.unless C.aslongas27.(2023·安徽·统考中考真题)Ourcountrywillbemuchbetterforeveryoneinfuture________wealldosomethingtohelpnow.A.if B.before C.sothat D.eventhough28.(2023·四川成都·统考中考真题)________youtreatotherswithyourheart,youwillgetfriendshipinreturn.A.If B.Until C.Unless29.(2022·内蒙古·中考真题)—Toomuchworkhasmademetiredthesedays,Mrs.Gao.—That’strue.Butasmalltreewon’tgrowintoabigone________itexperienceslotsofwindsandrains.A.if B.because C.when D.unless30.(2022·广西桂林·统考中考真题)Ifyou________alongthisroad,youwillfindapark.A.go B.went C.goes31.(2022·山东东营·统考中考真题)Youwon’tbeallowedtoentertheschool_________yourtemperatureishigherthannormal.A.if B.until C.though D.unless32.(2022·上海·统考中考真题)Youwon’thaveabetterviewofthevillage________youreachthetopofthehill.A.because B.unless C.when D.if33.(2022·江苏淮安·统考中考真题)Wewouldliketobuyelectriccars________theyproducelessairpollution.A.because B.so C.though D.but34.(2022·辽宁沈阳·统考中考真题)Ilovegoingtoschool________everyoneinmyclassisfriendly.A.before B.although C.because D.unless35.(2022·内蒙古包头·统考中考真题)Manywildanimalsdon’thaveasafeplacetolive,________villagesandfarmsaregrowingbiggerandtakingawaytheirland.A.because B.until C.although D.before36.(2023·四川泸州·统考一模)WangYaping,thefirstChinesefemaleastronaut,gavethestartoherdaughter________shewentbacktotheearth.A.assoonas B.until C.unless D.sothat37.(2023·四川广元·校联考模拟预测)—Timetogohome,Peter.—Waitaminute.Ican’tgohome________Ifinishcleaningthehallway.A.since B.until C.after D.before38.(2023·天津南开·统考二模)Lucyhasn’tcalledherparents________shewenttoLondon.A.so B.since C.before D.assoonas39.(2023·辽宁沈阳·统考三模)Theboywassoquietthatoftennoonewouldnotice________hecameintheroom.A.because B.unless C.while D.when40.(2023·福建南平·统考二模)ChatGPThasinfluencedpeople’slifealotsinceit________.A.isdeveloped B.wasdeveloped C.willbedeveloped41.(2023·福建漳州·统考二模)ItissaidthatZhangSanfengcreatedtaichi(太极)________hehadwatchedafightbetweensnakeandabird.A.until B.after C.when42.(2023·北京东城·统考二模)WhileI________homeyesterdayafternoon,itbegantorain.A.walk B.willwalk C.waswalking D.amwalking43.(2023·北京朝阳·统考二模)I________youanemailassoonasIreceivethephotos.A.send B.sent C.willsend D.havesent44.(2023·河北保定·统考二模)Don’ttalkwitheachother________youstudyinclass.A.when B.until C.although D.unless45.(2023·四川达州·统考一模)—Iwon’tcometothepartyunlessSue___________,too.—You
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