陜西初三英語時(shí)態(tài)單選題100道及答案

陜西初三英語時(shí)態(tài)單選題100道及答案1.—What_____you_____atthistimeyesterday?—I_____myhomework.A.did;do;didB.were;doing;wasdoingC.are;doing;amdoingD.will;do;willdo答案：B解析：根據(jù)atthistimeyesterday可知，問句和答句都要用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在做某事。2.Myfather_____toBeijingonbusinesslastweekandhe_____thereforthreedays.A.went;hasbeenB.hasgone;hasbeenC.went;wasD.hasgone;was答案：C解析：lastweek表明第一空用一般過去時(shí)；“在那里待了三天”是過去的動(dòng)作，用一般過去時(shí)。3.TheGreens_____manyplacesofinterestsincetheycametoChina.A.willvisitB.visitedC.havevisitedD.visit答案：C解析：since引導(dǎo)的時(shí)間狀語從句，主句要用現(xiàn)在完成時(shí)，表示從過去某一時(shí)間開始一直持續(xù)到現(xiàn)在的動(dòng)作或狀態(tài)。4.—_____you_____yourhomeworkyet?—Yes,I_____ittenminutesago.A.Did;do;finishedB.Have;done;finishedC.Have;done;havefinishedD.Will;do;finish答案：B解析：yet常用于現(xiàn)在完成時(shí)的疑問句，第一、二空用現(xiàn)在完成時(shí)；tenminutesago是過去的時(shí)間，第三空用一般過去時(shí)。5.Hesaidhe_____totheparkthenextSunday.A.willgoB.goesC.wouldgoD.went答案：C解析：主句是一般過去時(shí)，從句要用相應(yīng)的過去時(shí)態(tài)，thenextSunday表示將來，所以用過去將來時(shí)。6.I_____aletterfromhimsinceheleft.A.didn'treceiveB.haven'treceivedC.won'treceiveD.don'treceive答案：B解析：since引導(dǎo)的時(shí)間狀語從句，主句要用現(xiàn)在完成時(shí)，表示從過去某一時(shí)間開始一直持續(xù)到現(xiàn)在的動(dòng)作或狀態(tài)。7.Look!Thechildren_____footballontheplayground.A.playB.playedC.willplayD.areplaying答案：D解析：Look!表示現(xiàn)在正在進(jìn)行的動(dòng)作，用現(xiàn)在進(jìn)行時(shí)。8.Ifit_____tomorrow,we_____tothepark.A.rains;won'tgoB.willrain;won'tgoC.rains;don'tgoD.willrain;don'tgo答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。9.He_____inthisfactoryfor20yearsalready.A.willworkB.worksC.hasworkedD.isworking答案：C解析：already常用于現(xiàn)在完成時(shí)，強(qiáng)調(diào)過去的動(dòng)作對(duì)現(xiàn)在造成的影響或結(jié)果。10.She_____thepianowhenIwenttoseeher.A.playsB.playedC.wasplayingD.isplaying答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。11.Bytheendoflastyear,they_____fivenewbuildings.A.buildB.builtC.willbuildD.hadbuilt答案：D解析：bytheendoflastyear表示“到去年年底為止”，是過去的過去，用過去完成時(shí)。12.—_____youever_____totheGreatWall?—Yes,I_____therelastyear.A.Have;been;wentB.Have;gone;wentC.Did;go;wentD.Will;go;willgo答案：A解析：ever常用于現(xiàn)在完成時(shí)的疑問句，第一、二空用現(xiàn)在完成時(shí)；lastyear是過去的時(shí)間，第三空用一般過去時(shí)。13.They_____tothepartyiftheyarefreetomorrow.A.willcomeB.comeC.cameD.arecoming答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。14.He_____hisbikeandhurthimselfthismorning.A.fallsoffB.felloffC.willfalloffD.hasfallenoff答案：B解析：thismorning是過去的時(shí)間，用一般過去時(shí)。15.I'lltellhimthenewsassoonashe_____back.A.comeB.comesC.willcomeD.came答案：B解析：assoonas引導(dǎo)的時(shí)間狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。16.She_____abookwhenIsawher.A.readsB.readC.wasreadingD.isreading答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。17.They_____inBeijingsince2008.A.willliveB.livedC.havelivedD.areliving答案：C解析：since2008表示從2008年開始一直持續(xù)到現(xiàn)在，用現(xiàn)在完成時(shí)。18.Thestudents_____anEnglishpartynextSunday.A.willhaveB.haveC.hadD.arehaving答案：A解析：nextSunday表示將來的時(shí)間，用一般將來時(shí)。19.Ifyou_____hard,you_____goodgrades.A.study;willgetB.willstudy;getC.study;getD.willstudy;willget答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。20.He_____hishomeworkat8o'clocklastnight.A.doesB.didC.wasdoingD.isdoing答案：C解析：at8o'clocklastnight表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作，用過去進(jìn)行時(shí)。21.We_____tothezooifit_____finetomorrow.A.willgo;isB.go;isC.willgo;willbeD.go;willbe答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。22.She_____inthisschoolsinceshecamehere.A.willteachB.teachesC.hastaughtD.isteaching答案：C解析：since引導(dǎo)的時(shí)間狀語從句，主句要用現(xiàn)在完成時(shí)，表示從過去某一時(shí)間開始一直持續(xù)到現(xiàn)在的動(dòng)作或狀態(tài)。23.Theboy_____thekitewhenhismothercalledhim.A.fliesB.flewC.wasflyingD.isflying答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。24.They_____tothemoviesiftheyfinishtheirhomework.A.willgoB.goC.wentD.aregoing答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。25.He_____hiskeysandhadtowaitforhiswifetocomeback.A.losesB.lostC.willloseD.haslost答案：B解析：and連接兩個(gè)并列的動(dòng)作，had是過去式，所以前面的動(dòng)作也用一般過去時(shí)。26.I_____myfriendwhenIwaswalkinginthestreet.A.meetB.metC.willmeetD.havemet答案：B解析：when引導(dǎo)的時(shí)間狀語從句，從句用過去進(jìn)行時(shí)，主句用一般過去時(shí)，表示過去某個(gè)時(shí)間發(fā)生的動(dòng)作。27.She_____herroomeveryday,butshe_____itnow.A.cleans;iscleaningB.cleans;cleansC.iscleaning;cleansD.iscleaning;iscleaning答案：A解析：everyday表示經(jīng)常做的事情，用一般現(xiàn)在時(shí)；now表示現(xiàn)在正在進(jìn)行的動(dòng)作，用現(xiàn)在進(jìn)行時(shí)。28.Ifit_____tomorrow,we_____athome.A.rains;willstayB.willrain;willstayC.rains;stayD.willrain;stay答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。29.He_____inthefactoryforthreeyearsbeforehecamehere.A.worksB.workedC.hadworkedD.willwork答案：C解析：before引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去完成時(shí)，表示過去的過去。30.They_____totheparklastSunday.A.willgoB.goC.wentD.aregoing答案：C解析：lastSunday是過去的時(shí)間，用一般過去時(shí)。31.Thechildren_____gamesinthegardenwhenitbegantorain.A.playB.playedC.wereplayingD.areplaying答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。32.Ifyou_____lateagain,you_____introuble.A.are;willbeB.willbe;areC.are;areD.willbe;willbe答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。33.She_____abeautifuldresswhenIsawher.A.wearsB.woreC.waswearingD.iswearing答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。34.They_____totheconcertiftheyhavetime.A.willgoB.goC.wentD.aregoing答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。35.He_____hislegwhenhewasplayingfootball.A.hurtsB.hurtC.willhurtD.hashurt答案：B解析：when引導(dǎo)的時(shí)間狀語從句，從句用過去進(jìn)行時(shí)，主句用一般過去時(shí)，表示過去某個(gè)時(shí)間發(fā)生的動(dòng)作。36.I_____mygrandparentsnextweek.A.willvisitB.visitC.visitedD.amvisiting答案：A解析：nextweek表示將來的時(shí)間，用一般將來時(shí)。37.She_____herhaireverymorning,butshe_____itnow.A.brushes;isbrushingB.brushes;brushesC.isbrushing;brushesD.isbrushing;isbrushing答案：A解析：everymorning表示經(jīng)常做的事情，用一般現(xiàn)在時(shí)；now表示現(xiàn)在正在進(jìn)行的動(dòng)作，用現(xiàn)在進(jìn)行時(shí)。38.Ifit_____sunnytomorrow,we_____apicnic.A.is;willhaveB.willbe;willhaveC.is;haveD.willbe;have答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。39.He_____inthiscityforfiveyearsbeforehemovedtoanotherone.A.livesB.livedC.hadlivedD.willlive答案：C解析：before引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去完成時(shí)，表示過去的過去。40.They_____tothebeachlastsummer.A.willgoB.goC.wentD.aregoing答案：C解析：lastsummer是過去的時(shí)間，用一般過去時(shí)。41.Thestudents_____anexamatthistimeyesterday.A.takeB.tookC.weretakingD.aretaking答案：C解析：atthistimeyesterday表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作，用過去進(jìn)行時(shí)。42.Ifyou_____moreexercise,you_____healthier.A.take;willbeB.willtake;areC.take;areD.willtake;willbe答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。43.She_____astorytoherlittlebrotherwhenIenteredtheroom.A.tellsB.toldC.wastellingD.istelling答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。44.They_____tothemountainsifitdoesn'train.A.willgoB.goC.wentD.aregoing答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。45.He_____hiswalletonthebusthismorning.A.losesB.lostC.willloseD.haslost答案：B解析：thismorning是過去的時(shí)間，用一般過去時(shí)。46.I_____myfriend'sbirthdaypartynextmonth.A.willattendB.attendC.attendedD.amattending答案：A解析：nextmonth表示將來的時(shí)間，用一般將來時(shí)。47.She_____herteetheverynight,butshe_____themnow.A.brushes;isbrushingB.brushes;brushesC.isbrushing;brushesD.isbrushing;isbrushing答案：A解析：everynight表示經(jīng)常做的事情，用一般現(xiàn)在時(shí)；now表示現(xiàn)在正在進(jìn)行的動(dòng)作，用現(xiàn)在進(jìn)行時(shí)。48.Ifit_____snowtomorrow,we_____makeasnowman.A.does;willB.will;willC.does;doD.will;do答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。49.He_____inthearmyfortwoyearsbeforehebecameateacher.A.servesB.servedC.hadservedD.willserve答案：C解析：before引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去完成時(shí)，表示過去的過去。50.They_____tothemuseumlastweekend.A.willgoB.goC.wentD.aregoing答案：C解析：lastweekend是過去的時(shí)間，用一般過去時(shí)。51.Theboy_____amodelplanewhenhismothercamein.A.makesB.madeC.wasmakingD.ismaking答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。52.Ifyou_____therules,you_____punished.A.break;willbeB.willbreak;areC.break;areD.willbreak;willbe答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。53.She_____alettertoherfriendwhenIsawher.A.writesB.wroteC.waswritingD.iswriting答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。54.They_____totheparkifitisfinethisweekend.A.willgoB.goC.wentD.aregoing答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。55.He_____hisglassesandcouldn'tfindthem.A.losesB.lostC.willloseD.haslost答案：B解析：and連接兩個(gè)并列的動(dòng)作，couldn't是過去式，所以前面的動(dòng)作也用一般過去時(shí)。56.I_____myoldclassmatesnextyear.A.willmeetB.meetC.metD.ammeeting答案：A解析：nextyear表示將來的時(shí)間，用一般將來時(shí)。57.She_____herclotheseveryweek,butshe_____themnow.A.washes;iswashingB.washes;washesC.iswashing;washesD.iswashing;iswashing答案：A解析：everyweek表示經(jīng)常做的事情，用一般現(xiàn)在時(shí)；now表示現(xiàn)在正在進(jìn)行的動(dòng)作，用現(xiàn)在進(jìn)行時(shí)。58.Ifit_____windytomorrow,we_____flyakite.A.is;willB.willbe;willC.is;doD.willbe;do答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。59.He_____inthecompanyfortenyearsbeforeheleft.A.worksB.workedC.hadworkedD.willwork答案：C解析：before引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去完成時(shí)，表示過去的過去。60.They_____totheconcertlastnight.A.willgoB.goC.wentD.aregoing答案：C解析：lastnight是過去的時(shí)間，用一般過去時(shí)。61.Thechildren_____aplaywhentheteachercamein.A.performB.performedC.wereperformingD.areperforming答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。62.Ifyou_____thetruth,you_____respected.A.tell;willbeB.willtell;areC.tell;areD.willtell;willbe答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。63.She_____asongwhenIpassedbyherroom.A.singsB.sangC.wassingingD.issinging答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。64.They_____tothebeachiftheweatherisgoodnextweek.A.willgoB.goC.wentD.aregoing答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。65.He_____hisbikeandfelldownontheroad.A.losescontrolofB.lostcontrolofC.willlosecontrolofD.haslostcontrolof答案：B解析：and連接兩個(gè)并列的動(dòng)作，fell是過去式，所以前面的動(dòng)作也用一般過去時(shí)。66.I_____anewbooknextmonth.A.willbuyB.buyC.boughtD.ambuying答案：A解析：nextmonth表示將來的時(shí)間，用一般將來時(shí)。67.She_____herroomeverymonth,butshe_____itnow.A.tidies;istidyingB.tidies;tidiesC.istidying;tidiesD.istidying;istidying答案：A解析：everymonth表示經(jīng)常做的事情，用一般現(xiàn)在時(shí)；now表示現(xiàn)在正在進(jìn)行的動(dòng)作，用現(xiàn)在進(jìn)行時(shí)。68.Ifit_____coldtomorrow,we_____stayathome.A.is;willB.willbe;willC.is;doD.willbe;do答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。69.He_____intheschoolforfiveyearsbeforehegotpromoted.A.teachesB.taughtC.hadtaughtD.willteach答案：C解析：before引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去完成時(shí)，表示過去的過去。70.They_____tothezoolastSundayafternoon.A.willgoB.goC.wentD.aregoing答案：C解析：lastSundayafternoon是過去的時(shí)間，用一般過去時(shí)。71.Thestudents_____adiscussionwhenthebellrang.A.haveB.hadC.werehavingD.arehaving答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。72.Ifyou_____hardenough,you_____achieveyourgoal.A.try;willB.willtry;areC.try;areD.willtry;will答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。73.She_____adancewhenIsawherattheparty.A.doesB.didC.wasdoingD.isdoing答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。74.They_____tothemountainsiftheygetenoughtime.A.willgoB.goC.wentD.aregoing答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。75.He_____hiskeysintheofficeandhadtowaitforsomeonetoopenthedoor.A.leavesB.leftC.willleaveD.hasleft答案：B解析：and連接兩個(gè)并列的動(dòng)作，had是過去式，所以前面的動(dòng)作也用一般過去時(shí)。76.I_____anewhobbynextyear.A.willtakeupB.takeupC.tookupD.amtakingup答案：A解析：nextyear表示將來的時(shí)間，用一般將來時(shí)。77.She_____hernailseveryfewweeks,butshe_____themnow.A.paints;ispaintingB.paints;paintsC.ispainting;paintsD.ispainting;ispainting答案：A解析：everyfewweeks表示經(jīng)常做的事情，用一般現(xiàn)在時(shí)；now表示現(xiàn)在正在進(jìn)行的動(dòng)作，用現(xiàn)在進(jìn)行時(shí)。78.Ifit_____sunnythisweekend,we_____goforapicnic.A.is;willB.willbe;willC.is;doD.willbe;do答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。79.He_____intheteamforthreeseasonsbeforeheretired.A.playsB.playedC.hadplayedD.willplay答案：C解析：before引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去完成時(shí)，表示過去的過去。80.They_____totheconcertlastFriday.A.willgoB.goC.wentD.aregoing答案：C解析：lastFriday是過去的時(shí)間，用一般過去時(shí)。81.Theboy_____apuzzlewhenhisfathercamehome.A.solvesB.solvedC.wassolvingD.issolving答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。82.Ifyou_____themistake,you_____avoidthetrouble.A.correct;willB.willcorrect;areC.correct;areD.willcorrect;will答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。83.She_____apoemwhenIwalkedintotheroom.A.readsB.readC.wasreadingD.isreading答案：C解析：when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)，表示過去某個(gè)時(shí)間正在進(jìn)行的動(dòng)作。84.They_____totheparkifthetrafficisgood.A.willgoB.goC.wentD.aregoing答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。85.He_____hiswalletonthetrainandcouldn'tfinditlater.A.losesB.lostC.willloseD.haslost答案：B解析：and連接兩個(gè)并列的動(dòng)作，couldn't是過去式，所以前面的動(dòng)作也用一般過去時(shí)。86.I_____anewskillnextmonth.A.willlearnB.learnC.learnedD.amlearning答案：A解析：nextmonth表示將來的時(shí)間，用一般將來時(shí)。87.She_____herplantseveryday,butshe_____themnow.A.waters;iswateringB.waters;watersC.iswatering;watersD.iswatering;iswatering答案：A解析：everyday表示經(jīng)常做的事情，用一般現(xiàn)在時(shí)；now表示現(xiàn)在正在進(jìn)行的動(dòng)作，用現(xiàn)在進(jìn)行時(shí)。88.Ifit_____drytomorrow,we_____watertheflowers.A.is;willB.willbe;willC.is;doD.willbe;do答案：A解析：if引導(dǎo)的條件狀語從句，遵循“主將從現(xiàn)”原則，即主句用一般將來時(shí)，從句用一般現(xiàn)在時(shí)。89.He_____inthecityforeightyearsbeforehemovedtothecountryside.A.livesB.livedC.hadlivedD.willlive答案：C解析：before引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去完成時(shí)，表示過去的過去。90.They_____tothebeachlastsummervacation.A.willgoB.goC.wentD.aregoing答案：C解析：lastsummervacation是過去的時(shí)間，用一般過去時(shí)。91.Thestudents_____anexperimentwh