Unit 4 Growing up 重点语法:时间状语从句(八大题型100题)精讲练九年级英语上册重难点讲练全攻略(牛津译林版)_第1页
Unit 4 Growing up 重点语法:时间状语从句(八大题型100题)精讲练九年级英语上册重难点讲练全攻略(牛津译林版)_第2页
Unit 4 Growing up 重点语法:时间状语从句(八大题型100题)精讲练九年级英语上册重难点讲练全攻略(牛津译林版)_第3页
Unit 4 Growing up 重点语法:时间状语从句(八大题型100题)精讲练九年级英语上册重难点讲练全攻略(牛津译林版)_第4页
Unit 4 Growing up 重点语法:时间状语从句(八大题型100题)精讲练九年级英语上册重难点讲练全攻略(牛津译林版)_第5页
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Unit4Growingup重点语法:时间状语从句(八大题型,100题)精讲练目录TOC\o"1-3"\h\u语法知识精讲 1语法知识精练 4题型一:when引导时间状语从句 4题型二:while引导时间状语从句 6题型三:since引导时间状语从句 7题型四:as引导时间状语从句 8题型五:before引导时间状语从句 8题型六:after引导时间状语从句 9题型七:till/until引导时间状语从句 10题型八:一就表达法 12参考答案: 14语法知识精讲1.引导时间状语从句的连词从属连词用法例句While"与……同时,在……期间",从句常用延续性动词或表示状态的词Don’ttalkloudwhile(as)othersareworking.别人工作时,请勿大声说话。When"当……时",表示主句的动作和从句的动作同时或先后发生,从句的动词可用延续性动词,也可用非延续性动词whenyoureadthepoemasecondtime,themeaningwillbecomeclearertoyou.当你再读一遍这首诗,你就会更清楚它的含义。As"正当,一边……一边,随着",表示两个动作同时发生或某事发生时,另一个动作发生了Astimewenton,histheoryprovedtobecorrect.随着时间的推移,他的理论被证明是正确的。Till/Until用于肯定句时,表示"直到……为止",主句必须为延续性动词;not...until/till表示"直到……才",主句常用短暂性动词Weshallwaituntil/tillhecomesback.我们将一直等到他回来。Ididn’tleaveuntil/tillshefinishedherhomework.直到她完成作业我才离开。Since"自……以来",主句用一般现在时或现在完成时,从句用一般过去时IhaveheardlotofgoodthingsaboutyousinceIcomebackfromabroad.自从我从国外回来,我已经听许多好的事情。Before在……以前Hemustfinishalltheworkbeforehegoeshome.回家之前他必须完成所有的工作。After在……之后Let’splayfootballafterschool.放学后我们打篮球吧。2.when,while,as引导时间状语从句的区别when,while,as显然都可以引导时间状语从句,但用法区别非常大。①when可以和延续性动词连用,也可以和短暂性动词连用;而while和as只能和延续性动词连用。=2\*GB3②when从句的谓语动词可以在主句谓语动作之前、之后或同时发生;while和as从句的谓语动作必须是和主句谓语动作同时发生。a.从句动作在主句动作前发生,只用when。Whenhehadfinishedhishomework,hetookashortrest.(finished先发生)当他完成作业后,他休息了一会儿。b.从句动作和主句动作同时发生,且从句动作为延续性动词时,when,while,as都可使用。①When/While/Asweweredancing,astrangercamein.(dance为延续性动词)当我们跳舞时,一位陌生人走了进来。②When/While/Asshewasmakingaphonecall,Iwaswritingaletter.(make为延续性动词)当她在打电话时,我正在写信。c.当主句、从句动作同时进行,从句动作的时间概念淡化,而主要表示主句动作发生的背景或条件时,只能用as。这时,as常表示"随着……""一边……,一边……"之意。Asthetimewenton,theweathergotworse.随着时间的过去,天气变得更糟糕了。d.在将来时的从句中,常用when,且从句要用一般时代替将来时。YoushallborrowthebookwhenIhavefinishedreadingit.在我读完这本书后,你可以借阅。=3\*GB3③when用于表示"一……就……"的句型中(指过去的事情)。sb.hadhardly(=scarcely)donesth.when...=Hardly/Scarcelyhadsb.donesth.when...Ihadhardly/scarcelyclosedmyeyeswhensomeoneknockedatthedoor.=Hardly/ScarcelyhadIclosedmyeyeswhensomeoneknockedatthedoor.我刚一闭上眼,就有人在敲门了。Ihadhardly/scarcelyenteredmyroomwhenthetelephonerang.=Hardly/ScarcelyhadIenteredmyroomwhenthetelephonerang.我刚一走进房门,电话就响了。3.比较until和till此两个连词意义相同。肯定形式表示的意思是"做某事直至某时",动词必须是延续性的。否定形式表达的意思是"直至某时才做某事"。动词为延续性或非延续性都可以。正确使用这两个连词的关键之一就在于判断句中的动词该用肯定式还是否定式。肯定句:Isleptuntilmidnight.我一直睡到半夜时醒了。WaittillIcallyou.等着我叫你。(在肯定句中可用before代替。例如:Let’sgetinthewheatbeforethesunsets.)否定句:Shedidn’tarriveuntil6o’clock.她直到6点才到。Don’tgetoffthebusuntilithasstopped.公共汽车停稳后再下车。Ididn’tmanagetodoituntilyouhadexplainedhow.直到你教我后,我才会做。区别:(1)until可用于句首,而till通常不用于句首。Untilyoutoldme,Ihadheardnothingofwhathappened.直到你告诉我以前,出了什么事我一点也不知道。(2)untilwhen疑问句中,until要放在句首。—Untilwhenareyoustaying?—UntilnextMonday.注意:否定句可用另外两种句式表示。(3)Notuntil...在句首,主句用倒装。Notuntiltheearlyyearsofthe19thcenturydidmanknowwhatheatis.直到19世纪初,人类才知道热为何物。NotuntilIbegantoworkdidIrealizehowmuchtimeIhadwasted.直到工作,才认识到我已蹉跎了许多岁月。(4)Itisnotuntil...that...ItwasnotuntilIbegantoworkthatIrealizedhowmuchtimeIhadwasted.(5)表示"一……就……"的结构hardly/scarcely...when/before,nosooner...than和assoonas都可以表示"一……就……"的意思。Ihadhardly/scarcelygothomewhenitbegantorain.刚回家,就下起雨来了。Ihadnosoonergothomethanitbegantorain.AssoonasIgothome,itbegantorain.注意:如果hardly,scarcely或nosooner置于句首,句子必须用倒装结构。Hardly/ScarcelyhadIgothomewhenitbegantorain.NosoonerhadIgothomethanitbegantorain.语法知识精练题型一:when引导时间状语从句1.(23-24九年级上·江苏扬州·期中)—Youshouldbecarefulwhen________.—Yes,Iwill.I’dliketoknowwhen________tohavearest.A.driving;stopping B.driving;tostop C.todrive;stopping D.todrive;tostop2.(22-23九年级下·江苏淮安·期中)—Remember________offthelightswhen________home,Monica.—OK.Iwon’tforget,Mom.A.turning;leaving B.toturn;leave C.turning;left D.toturn;leaving3.(23-24九年级上·江苏泰州·期末)Iwasabouttogoout_________thetelephonerang,butithungup_________Icouldanswerit.A.when;before B.while;as C.when;as D.while;after4.(22-23九年级上·江苏泰州·期末)________astronautsgoonspacewalks,theywearspacesuitstokeepthemselvessafe.A.When B.Till C.Though D.Unless5.(22-23九年级上·江苏常州·期中)—Ididn’tknowyoucouldmakesuchdeliciousmooncakes.—Ilearneditfrommymum________IstayedathomethisMid-autumnFestival.A.until B.when C.since D.after6.(22-23九年级上·江苏盐城·期中)—Learningtoloveislikelearningtowalk.—Yes,________westepoutbravely,wecanfinditeasy.A.when B.before C.though D.whether7.(2023九年级·江苏·专题练习)Thestudentswereplayingintheplayground_______itbegantorainheavily.A.when B.as C.while D.after8.(2023·江苏盐城·一模)Smilingisthebestwaytogreetothers.Peoplewillsmileback________yousmileatthem.A.when B.though C.before D.whether9.(22-23九年级下·江苏苏州·阶段练习)Astudyshowsamanwillbegreatlyencouraged________heispraisedbyastranger.A.what B.where C.who D.when10.(21-22九年级上·江苏淮安·期中)Hejustwantstoknowifshe________himwhenshe________back.A.calls;comes B.calls;willcomeC.willcall;willcome D.willcall;comes11.(2022·江苏扬州·中考真题)________astronautsgoonspacewalks,theywearspacesuitstokeepthemselvessafe.A.Though B.Till C.When D.Unless12.(2022·江苏南京·一模)Astudyhasfoundthatplantsfeelpain________theyaretouchedorhurt.A.what B.when C.where D.who题型二:while引导时间状语从句13.(2024·江苏无锡·三模)Mygrandpaoftentellsmewemustworkhardtogetmoreknowledge________weareyoung.A.since B.while C.if D.until14.(2022·江苏无锡·三模)Loveyourparents________theyarealive.Neverwaituntilitistoolate.A.though B.because C.while D.until15.(21-22九年级上·江苏南京·阶段练习)Mr.Blackwalkedaroundandofferedhelp________weweredoinganexperiment.A.while B.before C.after D.until16.(2024·安徽蚌埠·二模)Lisa,you’dbetternotforgettowatertheflowersandthegrassinourgarden________wegooutforourholidays.A.while B.though C.unless D.till17.(2024·江西赣州·一模)—Whatcanwedotosavewater?—Well,forexample,wecansavewaterbyturningoffthewater________washingourhands.A.before B.until C.assoonas D.while18.(2024·河北石家庄·一模)Grandmawastired.Shefellasleep________shewasreadinganewspaper.A.if B.unless C.until D.while19.(23-24九年级上·山东青岛·期末)Grandmawastired.Shefellasleep________shewasreadinganewspaper.A.since B.if C.while D.until20.(23-24八年级上·天津宁河·期末)Theboywaslisteningtomusic________hewasridinghisbike.A.when B.while C.after D.before21.(23-24九年级上·河北唐山·期末)Whileeveryone_________atthecomicspage,Ipickedupacopytoseewhatwassofunny.A.islaughing B.laugh C.laughs D.waslaughing22.(23-24九年级上·内蒙古呼和浩特·期中)Remembertotakenotes________youarereading.Itcanhelpyouunderstandthetextbetter.A.before B.unless C.while D.after23.(22-23九年级下·黑龙江大庆·期中)Iwasreadingabook________BettywaswatchingTV.A.when B.while C.what D.which24.(23-24九年级上·天津红桥·期中)Somevisitorscametoourclass________weweresinginganEnglishsong.A.if B.because C.while D.sothat题型三:since引导时间状语从句25.(2024·天津红桥·二模)Hehasstudiedveryhard_________hecametoourclass.A.when B.and C.since D.so26.(2024·江苏常州·二模)Ithasbeenmucheasierforustotaketripsaroundattheweekend________thehigh-speedrailwaywasputintousein2023inJintan.A.when B.after C.since D.until27.(2024·安徽亳州·二模)Mrs.Lihasbeenwithus________wecametojuniorhighschool.A.since B.if C.when D.while28.(2024·北京海淀·一模)Lisa________theSummerPalacetwicesinceshecametoBeijing.A.visits B.visited C.hasvisited D.wasvisiting29.(23-24八年级下·江苏南京·阶段练习)It’sabouttwoyears________theyoungmanbecameasoldier.A.when B.before C.since D.as30.(2024·甘肃武威·一模)Ithasbeenabouttwomonths________shelastheardfromhermother.A.for B.since C.unless D.until31.(23-24九年级下·江苏南通·阶段练习)—Icanhardlybelievemyeyes!AreyoureallyMary?—Yes.It’salongtime________welastmet.A.since B.before C.until D.after32.(22-23九年级上·辽宁铁岭·阶段练习)—FrankisfromAmericabutspeaksperfectChinese.—Sohedoes.HehaslearnedChinesebyhimselfsincehe________college.A.isattending B.hasattended C.attended D.attends33.(2023·江西吉安·三模)Thepolicehaveactedquicklytosearchforthemissingchild________hisparentscametoaskforhelp.A.since B.so C.if D.because34.(2023·江苏镇江·一模)I’vebeentryingdifferentways________IdecidedtostudyEnglishwell.A.until B.since C.but D.unless题型四:as引导时间状语从句35.(23-24九年级上·湖北·期末)—_________timegoeson,herillnessgetsworseandworse.—Sheisalwaysastrong-mindedlady.Hopeamiraclewillhappen.A.When B.While C.Once D.As36.(22-23九年级上·江苏南京·期末)Theword“as”inthesentence“IsawPeterasIwasgettingoffthebus.”isusedto________.A.showcause B.showpurpose C.tellaresult D.showtime37.(22-23九年级上·河北唐山·期中)_______shegrewolder,shebecamemoreandmoreactive.A.Before B.As C.Because D.Until38.(2022·江苏南京·二模)Readthesentence“IsawPeterasIwasgettingoffthebus.”Theword“as”isusedto________.A.showcause B.showtime C.tellaresult D.comparethings39.(2022·江苏苏州·一模)________EileenGulandedperfectlyontheground,allofusjumpedwithjoy.A.Before B.Until C.As D.Unless40.(2022·江苏无锡·一模)________SuYiminglandedperfectlyontheground,allofusjumpedwithjoy.A.Before B.Until C.As D.Though题型五:before引导时间状语从句41.(2024·甘肃武威·三模)—WhereisDaniel?—Afterhearingaboutthenews,heranofflikeanexcitedchild________Icouldstophim.A.unless B.until C.before D.except42.(2024·河北石家庄·一模)Weneedtotakeactiontosaveeverydropofwater________itistoolate.A.before B.unless C.because D.until43.(2023·江苏无锡·二模)Don’tmissthischance.Itmustbeyears________yougetanotherone.A.before B.after C.until D.since44.(2024·江西南昌·一模)We’dbetteraskparentsorteachersforsomeadvice________wemakeanimportantdecision.A.or B.so C.unless D.before45.(2024·安徽马鞍山·一模)Itisnecessarytoaskyourparentsforsomeadvice______youmakethefinaldecision.A.because B.unless C.before D.after46.(2024·河北石家庄·一模)Remembertoturnoffthelights________youleavetheroom.A.after B.until C.unless D.before47.(23-24九年级上·江西上饶·期末)Duringtheearthquake,someteachershadsucceededinleadingsomestudentstotheplayground________thebuildingfelldown.A.but B.because C.though D.before48.(23-24九年级上·天津和平·期末)Howexcitingthe100-metrehurdlingraceis!Youcanneverknowwhothewinnerwillbe________itends.A.before B.after C.when D.since49.(23-24九年级上·河北邯郸·期中)Luckily,allpeoplehadrunoutofthebuilding________itfelldown.A.until B.if C.before D.after50.(2023·河北邯郸·三模)You’dbettermakeaplan________youtravel.A.until B.after C.before D.since题型六:after引导时间状语从句51.(2024·河北唐山·二模)Johnfeltbetter________hetookthemedicine.A.if B.unless C.although D.after52.(2024·河北·二模)Teenagersshoulddosomehousework________theyfinishtheirhomework.A.until B.unless C.after D.because53.(2024·河北邯郸·二模)Shebecamefamousintown________shewonfirstprizeinthesingingcompetition.A.unless B.if C.after D.although54.(2024·上海普陀·二模)AfterFrank__________thedinner,hewentforawalkinthegardenwithhisfamily.A.iseating B.eats C.willeat D.hadeaten55.(23-24九年级下·江苏宿迁·阶段练习)GiantpandaYaYareturnedtoitshomeinBeijingZooearlyonMonday________spending20yearsintheUS.A.until B.before C.after D.during56.(22-23九年级上·安徽淮南·期末)AftertheSmiths________,theymovedtoasmalltownandlivedthere.A.married B.aremarried C.hadmarried D.gotmarried57.(22-23九年级上·江苏南通·期中)—Iwanttogototheconcertlateron.Wouldyouliketojoinme?—Withpleasure.________Ifinishthework,I’llcallyou.A.As B.Until C.After D.Since58.(22-23九年级上·天津滨海新·期中)Mycousinbecameacountrydoctor________hefinishedmedicalschool.A.after B.before C.but D.so59.(2022·广西梧州·一模)Mycousinbecameacountrydoctor_______hefinishedmedicalschool.A.after B.and C.but D.so60.(2022·河北邯郸·三模)Isatdowntoreadanewspaper________Ifinishedmyhomework.A.unless B.if C.while D.after题型七:till/until引导时间状语从句61.(2024·甘肃临夏·中考真题)Tomdidn’tgotobed________hismothercamebacklastnight.A.until B.if C.because D.unless62.(2024·安徽·模拟预测)—Idon’tthinkIcanfinishthetask.—Don’tsaysolikethat.Youwillneverknowyourstrongability_______youtry.A.after B.until C.if D.since63.(2024·江苏南京·二模)Mostpeopleusuallycan’tunderstandparents’love________theyhavetheirownchildren.A.if B.since C.until D.because64.(2024·四川泸州·中考真题)Youwillnevertrulyunderstandyourparents’greatlove______yougrowup.A.until B.if C.since D.as65.(2024·云南昆明·二模)—Mary,whendidyougotobedlastnight?—Ididn’tgotobed________IfinishedreadingthenovelTheThreeBodyProblem.A.until B.although C.if D.after66.(2024·江西吉安·三模)IntheChinesetradition,peoplewon’tstarttoeat________theelderstaketheirseats.A.after B.because C.until D.although67.(2024·云南丽江·二模)Youwon’tknowwhetheryoucansucceed________youdoityourself.A.when B.if C.until D.assoonas68.(2024·安徽滁州·三模)Doctorsandnurseslookafterthepatientsdayandnight.Andtheyneverstoptreatingthem________thesickgotwell.A.if B.though C.until D.because69.(2024·江苏南通·二模)—Howlongwillthemeetinglast?—Untilanagreement________.A.reaches B.isreached C.willreach D.willbereached70.(2024·江苏无锡·二模)—Whatanicemeal!—Ican’tagreemore.Iate________Icouldn’tstand.A.until B.after C.when D.unless71.(2024·黑龙江哈尔滨·二模)—It’struethatwedon’tknowwhatwe’vegot________weloseit.—Sovaluewhatwehavegot.A.after B.until C.when72.(2024·天津南开·二模)Iwon’teatthecake_________yougethome.A.assoonas B.sothat C.while D.until73.(2024·云南昆明·二模)Wedidn’tleaveschoolyesterday________wecleanedtheclassroomcarefully.A.when B.since C.until D.if74.(2024·四川广元·二模)—Look,Herecomesourschoolbus.—Nohurry.Don’tgetonit________ithasstopped.A.after B.until C.since D.when75.(2024·河北承德·二模)Youcan’tleave________yourworkisfinished.A.if B.until C.though D.since76.(2024·甘肃武威·三模)—Whattimewillwehaveourmeetingthisafternoon?

—Well,themeetingwillbeputoff________thenewmanagercomes.A.till B.though C.while D.if77.(2024·江苏常州·一模)—Howlongwillthediscussionlast?—________wereachanagreement.Theirprojectis________ours,soit’snoteasytochoose.A.Notuntil;asgoodas B.Until;aswellas C.Until;asgoodas D.Notuntil;aswellas78.(2024·江西上饶·一模)Lastnightwedidn’thavesupper________myfathercamebackhome.A.if B.because C.though D.until79.(2024·云南·三模)—CanIleavebeforeyougetbackfromthestore?—No,pleasewaithere________Ireturn.A.so B.until C.since D.while80.(2024·云南曲靖·一模)Lifeisoftencomparedtoajourney.Wehavetokeepwalking________wegettothefinaldestination.A.so B.until C.and D.but题型八:一就表达法81.(2024·内蒙古·二模)ElonMuskspokehighlyofChinaSpace________hearrivedinChinalastweek.A.assoonas B.unless C.because D.if82.(2024·四川遂宁·二模)China’sAIcartoonQianqiushisong(千秋诗颂)willcatchpeople’sattention_______itappears.A.inorderthat B.aslongas C.assoonas D.sothat83.(2024·江苏无锡·三模)Thestudentsdecidedthey________asWWFvolunteersassoonasthesummervacationcame.A.worked B.willwork C.haveworked D.wouldwork84.(2024·山东青岛·二模)—WhenwillyoucometoBeijing?—I’llcallyou_________Iarrive.A.although B.while C.assoonas D.until85.(2024·吉林长春·一模)Bettycalledherparentsexcitedly_______shegotanofferofwork.A.sothat B.assoonas C.though D.before86.(2024·北京平谷·一模)Theoldscientistwillstarthislectureassoonashe________toourschool.A.gets B.get C.willget D.got87.(2024·上海长宁·二模)MyfriendKittymadeatelephonecalltome________shearrivedinShanghaiyesterday.A.nowthat B.sothat C.aslongas D.assoonas88.(23-24九年级下·河北张家口·阶段练习)IwillgivetheChinesekitetoLindaIseeher.A.assoonas B.sothat C.although D.unless89.(23-24九年级下·江西宜春·阶段练习)I’llgotovisitmyauntinEngland________thesummerholidaysstart.A.since B.untilC.assoonas D.unless90.(2024·四川广元·二模)—CanyoutakeamessagetoTom?—Ofcourse.Iwilltellhimassoonashe_________.A.comes B.willcome C.iscoming D.hascome91.(2024·江苏淮安·一模)China’sfirstAIcartooninhistoryQianqiushisong(千秋诗颂)caughtpeople’sattention________itmadeitsfirstappearancethisFebruaryonCCTV1.A.inorderthat B.notuntil C.assoonas D.sothat92.(22-23九年级下·辽宁·期中)—Haveyoudonethesurvey?—Notyet,IaminNewYorknow.Iwillfinishit________Icomeback.A.evenif B.assoonas C.inorderthat D.eventhough93.(22-23九年级下·上海闵行·期中)Thethiefwascaught________hepickedawalletoutofaman’spocket.A.assoonas B.while C.asfaras D.aslongas94.(23-24九年级上·江苏镇江·期末)MyfatherwilltakemetoSuningPlazatoseeafilmassoonashiswork________.A.iscompleted B.willbecompleted C.hascompleted D.completes95.(23-24九年级上·天津宁河·期末)Shewillhaveaholidayassoonasshe______theworknextweek.A.doesn’tfinish B.finishes C.willfinish D.won’tfinish96.(22-23九年级上·吉林长春·期末)I’llgotovisitmyauntinEngland________thewinterholidaystarts.A.since B.until C.assoonas D.while97.(22-23九年级上·江苏无锡·期末)________wewereborn,ahugequestionwasinfrontofus:howdowespendourlife?A.Aswellas B.Asgoodas C.Assoonas D.Aslongas98.(23-24九年级上·北京朝阳·期中)—Ihopeyou’llenjoyyourtrip,dear!—Thankyou,mum.I’llgiveyouacall________Igetthere.A.until B.assoonas C.since D.sothat99.(22-23九年级上·江苏常州·期中)________Nickgotwell,hewentbacktoschool.Hedidn’twanttomissanymoreclasses.A.While B.Whether C.Sothat D.Assoonas100.(22-23九年级上·山东东营·阶段练习)Theyoungmenallshouted“HappyNewYear”________itwastwelveo’clock.A.after B.assoonas C.if D.until参考答案:题号12345678910答案BDAABAAADD题号11121314151617181920答案CBBCAADDCB题号21222324252627282930答案DCBCCCACCB题号31323334353637383940答案ACABDDBBCC题号41424344454647484950答案CAADCDDACC题号51525354555657585960答案DCCDCDCAAD题号61626364656667686970答案ABCAACCCBA题号71727374757677787980答案BDCBBACDBB题号81828384858687888990答案ACDCBADACA题号919293949596979899100答案CBAABCCBDB1.B【详解】句意:——开车时你应该小心。——是的,我会的。我想知道什么时候停下来休息。考查非谓语动词。when引导的时间状语从句的主语,与主句主语是同一个主语,谓语是be时,用省略结构,省去主语和be动词,故第一空whenyouaredriving,省略成whendriving。作为动词know的宾语,用疑问词+todosth,故用tostop。故选B。2.D【详解】句意:——莫妮卡,离开家时记得关灯。——好的,我不会忘记的,妈妈。考查非谓语动词。remembertodosth.表示“记得要做某事(还没做)”,rememberdoingsth.表示“记得做过某事(已经做了)”。根据“OK.Iwon’tforget,Mom.”可知,还没做,第一个空用动词不定式,故排除A、C;第二个空when引导的时间状语从句的主语和主句的主语是同一个人,此处省略了主语和be动词,故用现在分词形式。故选D。3.A【详解】句意:电话铃响时我正要出去,但我还没来得及接就挂断了。考查连词辨析。when当……时,可与延续性动词连用;before在……之前;while在……期间,表示一段时间;as一边……一边……,后面的动作和主句的动作同时发生;after在……之后。beabouttodo…when…“正要做……这时……”,固定用法,故第一空填when;第二空填before符合语境,指的是“还没来得及”。故选A。4.A【详解】句意:当宇航员进行太空行走时,他们会穿着宇航服来保护自己的安全。考查连词辨析。When当……时候;Till直到;Though虽然;Unless除非。根据“astronautsgoonspacewalks,theywearspacesuitstokeepthemselvessafe”可知当宇航员太空行走时,他们会穿宇航服,用when引导时间状语从句。故选A。5.B【详解】句意:——我不知道你会做这么好吃的月饼。——今年中秋节我在家的时候从妈妈那里学的。考查连词辨析。until直到;when当……时候;since自从;after在……之后。根据“Ilearneditfrommymum...IstayedathomethisMid-autumnFestival.”可知,“学习”和“待在家里”这两个动作同时进行,应用when引导时间状语从句。故选B。6.A【详解】句意:——学会爱就像学会走路。——是的,当我们勇敢地走出去时,我们会发现这很容易。考查连词辨析。when当;before在……之前;though虽然;whether是否。根据“westepoutbravely,wecanfinditeasy.”可知是当勇敢走出去时,会发现学会爱很容易。故选A。7.A【详解】句意:当开始下大雨的时候,学生们正在操场上玩。考查连词辨析。when当……时,常引导一般现在时或一般过去时的时间状语从句;as像,如同,作为;while当……时,常引导现在进行时或过去进行时的时间状语从句;after在……之后,引导时间状语从句。根据“Thestudentswereplayingintheplayground…itbegantorainheavily.”的句意和两种时态可知,when符合语境和时态特点。故选A。8.A【详解】句意:微笑是和别人打招呼的最好方式。当你对他们微笑时,他们也会对你微笑。考查连词辨析。when当……时;though尽管;before在……之前;whether是否。根据“Peoplewillsmileback…yousmileatthem”可知,当你对其他人微笑时,他们也会对你微笑,所以此空应用when引导时间状语从句,故选A。9.D【详解】句意:一项研究表明,当一个人受到陌生人的赞扬时,他会受到极大的鼓励。考查词义辨析。what什么;where哪里;who谁;when当。根据“Astudyshowsamanwillbegreatlyencouraged...heispraisedbyastranger.”可知,当一个人受到陌生人的赞扬时,他会受到极大的鼓励。用when引导时间状语从句。故选D。10.D【详解】句意:他只是想知道她回来时是否会打电话给他。考查时态。第一处是if引导的宾语从句,时态是一般将来时,所以用willcall;第二处是when引导的时间状语从句,需用一般现在时。故选D。11.C【详解】句意:当宇航员进行太空行走时,他们会穿着宇航服来保护自己的安全。考查连词辨析。Though虽然;Till直到;When当……时候;Unless除非。根据“astronautsgoonspacewalks,theywearspacesuitstokeepthemselvessafe”可知当宇航员太空行走时,他们会穿宇航服,用when引导时间状语从句。故选C。12.B【详解】句意:一项研究发现,当植物被触摸或伤害时,它们会感到疼痛。考查时间状语从句。what什么;when当……时;where哪里;who谁。根据“Astudyhasfoundthatplantsfeelpain...theyaretouchedorhurt.”可知,当植物被触摸或伤害时,它们会感到疼痛。用when引导时间状语从句。故选B。13.B【详解】句意:我爷爷经常告诉我,我们必须趁着年轻努力学习,获得更多的知识。考查连词辨析。since自从;while当……时;if如果;until直到……为止。根据“Mygrandpaoftentellsmewemustworkhardtogetmoreknowledge...weareyoung.”可知,趁着正年轻,我们必须努力学习获得更多知识,此处应用while引导时间状语从句。故选B。14.C【详解】句意:在父母活着的时候爱他们。永远不要等到为时已晚。考查连词辨析。though虽然;because因为;while当……时;until直到。根据“Loveyourparents…theyarealive.Neverwaituntilitistoolate.”可知,此处指在父母活着的时候爱他们,使用while引导时间状语从句。故选C。15.A【详解】句意:当我们在做实验时,布莱克先生走来走去,主动提供帮助。考查连词辨析。while当……时;before在……之前;after在……之后;until直到。根据“offeredhelp…weweredoinganexperiment”可知,是在做实验时提供帮助,故选A。16.A【详解】句意:莉萨,我们出去度假的时候,你最好别忘了给花园里的花草浇水。考查从属连词辨析。while在……的时候;though尽管;unless除非;till直到。根据“wegooutforourholidays”可知,此处指外出度假时,要记得给花草浇水,用while引导时间状语从句。故选A。17.D【详解】句意:——我们能做些什么来节约用水?——嗯,例如,我们可以通过洗手时关水来节约用水。考查连词辨析。before在……之前;until直到;assoonas一……就……;while与……同时。根据“turningoffthewater...washingourhands.”可知,洗手的时候关水可以节约用水,应用while引导时间状语从句,故选D。18.D【详解】句意:奶奶累了。她在看报的时候睡着了。考查连词。if如果;unless除非;until直到;while当……的时候。根据“Grandmawastired.Shefellasleep…shewasreadinganewspaper.”可知是指当她在看报的时候睡着了。故选D。19.C【详解】句意:奶奶累了。她在看报纸的时候睡着了。考查时间状语从句。since自从;if如果;while当……时候;until直到。根据“Shefellasleep...shewasreadinganewspaper.”可知,此处指“看报纸时睡着了”,应用while引导时间状语从句。故选C。20.B【详解】句意:那个男孩骑自行车时正在听音乐。考查连词词义辨析。when当……时;while当……的时候;after在……以后;before在……以前。根据“Theboywaslisteningtomusic”和“hewasridinghisbike”可知,都是过去进行时,两个动作同时发生。由when引导的时间状语从句,主句用过去进行时,从句应用一般过去时;如果从句和主句的动作同时发生,两句都用过去进行时的时候,多用while引导。故选B。21.D【详解】句意:当每个人都在嘲笑漫画页面时,我拿起一本看看有什么好笑的。考查动词时态。laughat嘲笑,本句是while引导的时间状语从句,强调从句动作正在进行时,主句的动作发生了,结合“Ipickedupacopytoseewhatwassofunny.”可知,从句时态用过去进行时,结构为was/weredoing,主语everyone作主语时,谓语动词用单数形式,因此be动词用was,故选D。22.C【详解】句意:阅读时记得记笔记。它可以帮助你更好地理解课文。考查连词辨析。before在……之前;unless除非;while当……时;after在……之后。根据“Remembertotakenotes...youarereading.”可知,此处指的是“当阅读的时候”,应用while引导时间状语从句,故选C。23.B【详解】句意:贝蒂在看电视时我正在看书。考查连词。when在……时,引导时间状语从句;while而,当……时,表示对比性;what什么;which哪一个。根据句意和句子结构可知,空格前后两句表示对比。故选B。24.C【详解】句意:当我们正在唱一首英语歌时,一些访客来到了我们班。考查连词辨析。if如果,引导条件状语从句;because因为,引导原因状语从句;while当……时,引导时间状语从句;sothat因此,引导目的状语从句。根据题干可知,“访客进教室”与“我们唱英文歌”两个动作是同时进行的,所以设空处引导时间状语从句,选项C符合语境。故选C。25.C【详解】句意:自从来到我们班级之后,他学习非常努力。考查连词辨析。when当……时;and和;since自从;so所以。根据“Hehasstudiesveryhard”可知,时态是现在完成时,“hecametoourclass”是一般过去时,所以句子是since引导的时间状语从句,故选C。26.C【详解】句意:自2023年高铁在金坛投入使用以来,我们周末出行变得容易多了。考查连词辨析。when当……时;after在……之后;since自从;until直到。结合语境及“Ithasbeenmucheasierforusto…”可知,主句时态为现在完成时,此处表示过去某个时间点开始的动作持续到现在的影响,应用since引导时间状语从句。故选C。27.A【详解】句意:李老师自我们到初中就和我们在一起。考查连词。since自……以来;if如果;when当……时;while当……时。根据“hasbeenwithus”可知此处为“主句(现在完成时)+since+从句(一般过去时)”。故选A。28.C【详解】句意:自从丽莎来北京后,已经参观颐和园两次了。考查现在完成时。该句为since引导的时间状语从句,主句应用现在完成时,谓语结构为have/has+过去分词。故选C。29.C【详解】句意:这个年轻人当兵大约两年了。考查连词辨析。when当……时;before在……以前;since自从;as因为。itis/hasbeen+一段时间+since+一般过去时“做某事已经……”,是固定句型,故选C。30.B【详解】句意:自从她上次收到母亲的信以来,已经有两个月了。考查连词辨析。for因为;since自从;unless除非;until直到……为止。根据“Ithasbeenabouttwomonths…shelastheardfromhermother.”可知,此处是指自从上次收到她母亲来信以来有两个月了,用since引导时间状语从句。故选B。31.A【详解】句意:——我简直不敢相信自己的眼睛!你真的是玛丽吗?——是的。自从我们上次见面以来,已经有很长时间了。考查连词辨析。since自从;before在……之前;until直到;after在……之后。根据“It’salongtime...welastmet.”可知,是指自从我们上次见面以来有很长时间了,用since引导时间状语从句。故选A。32.C【详解】句意:——弗兰克来自美国,但汉语说得很流利。——他确实如此。自从上大学以来,他就自学了汉语。考查时态。since“自从”,引导时间状语从句用一般过去时,故用过去式attended。故选C。33.A【详解】句意:自从失踪儿童的父母来寻求帮助后,警方迅速采取行动寻找他。考查连词辨析。since自从;so因此;if如果;because因为。分析句子可知,此处应用since引导时间状语从句,主句用现在完成时,从句用一般过去时。故选A。34.B【详解】句意:自从我决定学好英语以来,我一直在尝试不同的方法。考查连词辨析。until直到;since自从……以来;but但是;unless除非。根据“I’vebeentryingdifferentways...IdecidedtostudyEnglishwell.”可知,空后是空前“I’vebeentryingdifferentways”的时间状语,此处指“自从决定学好英语开始,就在尝试不同的方法”,所以用since引导时间状语从句,故选B。35.D【详解】句意:——随着时间的推移,她的病情越来越严重。——她一直是一个意志坚强的女士。希望奇迹会发生。考查连词辨析。When当……时;While当……时;Once一旦;As随着。根据“...timegoeson,herillnessgetsworseandworse.”可知,随着时间的推移,她的病情加重,用as引导时间状语从句。故选D。36.D【详解】句意:句子“当我下车时,我看到了彼得”中的单词“as”用来表示时间。考查时间状语从句。showcause表示原因;showpurpose表示目的;tellaresult告诉一个结果;showtime表示时间。根据“asIwasgettingoffthebus”可知,此处as表示“当……时候”,引导时间状语从句。故选D。37.B【详解】句意:随着她慢慢长大,她变得越来越活跃。考查连词辨析。Before在……之前;As随着;Because因为;Until直到。分析两个句子的逻辑关系可知,“shegrewolder”表示时间,所以空处引导的是一个时间状语从句,且结合句意,空处应是“随着”的含义,对应的连词是“As”,故选B。38.B【详解】句意:读这句话:“当我下车的时候,我看到了彼得。”“as”这个词用来表示时间。考查as的用法。showcause表示原因;showtime表示时间;tellaresult告诉一个结果;comparethings比较事物。根据“asIwasgettingoffthebus”可知,此处as表示“当……时候”,引导时间状语从句;故选B。39.C【详解】句意:当谷爱凌完美地落地时,我们都高兴得跳了起来。考查从属连词辨析。Before在……之前;Until直到;As当……时;Unless除非。根据“...EileenGulandedperfectlyontheground,allofusjumpedwithjoy.”可知,当谷爱凌完美地落地时,我们都高兴得跳了起来。用as引导时间状语从句,故选C。40.C【详解】句意:当苏翊鸣完美地落地时,我们都高兴得跳了起来。考查从属连词辨析。Before在……之前;Until直到;As当……时;Though虽然。根据“...SuYiminglandedperfectlyontheground,allofusjumpedwithjoy.”可知,当苏翊鸣完美地落地时,我们都高兴得跳了起来。故选C。41.C【详解】句意:——丹尼尔在哪里?——听到这个消息后,我还没来得及阻止他,他就像个兴奋的孩子一样跑掉了。考查时间状语从句。unless除非;until直到;before在……之前;except除了。根据“heranofflikeanexcitedchild...Icouldstophim.”可知,在自己能够阻止他之前,他就跑掉了,应用before引导时间状语从句,故选C。42.A【详解】句意:在一切太迟了之前,我们需要采取行动节约每一滴水。考查连词辨析。before在……之前;unless除非;because因为;until直到……为止。由“itistoolate”可知此处表示要在一切太迟了之前采取行动,用before引导时间状语从句。故选A。43.A【详解】句意:不要错过这次机会,你一定要等很多年才能再得到另一次机会。考查连词辨析。before在……之前;after在……之后;until直到……为止;since自从。根据“Itmustbeyears...yougetanotherone.”可知,再得到这样的机会之前需要好多年时间。故选A。44.D【详解】句意:在我们做出重要决定之前,我们最好先征求家长或老师的意见。考查连词辨析。or或者;so所以;unless除非;before在……之前。根据“We’dbetteraskparentsorteachersforsomeadvice...wemakeanimportantdecision”可知在做决定之前要征求父母或老师的意见。故选D。45.C【详解】句意:在你做最后决定之前,向父母征求一些建议是有必要的。考查连词辨析。because因为,引导原因状语从句;unless除非,引导条件状语从句;before在……之前,引导时间状语从句;after在……之后,引导时间状语从句,都是从属连词。根据“askyourparentsforsomeadvice...youmakethefinaldecision.”可知,此处是时间状语从句,应该在做决定之前问他人。故选C。46.D【详解】句意:在你离开房间前,记得关灯。考查连词辨析。after在……之后;until直到……为止;unless除非;before在……之前。根据“Remembertoturnoffthelights...youleavetheroom.”可知,此处指离开房间之前,别忘了关灯。故选D。47.D【详解】句意:在地震中,一些老师在建筑物倒塌之前成功地把一些学生带到操场上。考查连词辨析。but但是;because因为;though尽管;before在……以前。根据“someteachershadsucceededinleadingsomestudentstotheplayground...thebuildingfelldown.”可知,是指在建筑物倒塌之前成功地把一些学生带到操场上。故选D。48.A【详解】句意:100米跨栏赛是多么激动人心啊!在比赛结束之前,你永远不可能知道谁会是赢家。考查连词词义辨析。before在……之前;after在……之后;when当……时候;since自从。根据“Youcanneverknowwhothewinnerwillbe…itends.”及常识可知,在比赛结束之前,不可能知道谁会是赢家。故选A。49.C【详解】句意:幸运的是,在大楼倒塌之前,所有的人都跑出了大楼。考查时间状语从句。until直到;if如果;before在……之前;after在……之后。根据“Luckily”可知,应是在大楼倒塌之前,所有的人都跑出去了。故选C。50.C【详解】句意:你最好在旅行前制定一个计划。考查连词辨析。until直到;after在……之后;before在……之前;since自从。根据“You’dbettermakeaplan…youtravel”及常识可知,在旅行前制定一个计划,故选C。51.D【详解】句意:约翰吃了药后感觉好多了。考查连词辨析。if如果;unless除非;althoug

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