2026年重庆市苏教版初中英语第11单元语法知识巩固习题

2026年重庆市苏教版初中英语第11单元语法知识巩固习题一、单项选择题（每题2分，共20分）1.Inthe11thunitofthe2026ChongqingSujiueditionjuniorhighschoolEnglishtextbook,whichsentencecorrectlyusesthepresentperfecttensetodescribeanactioncompletedinthepastwithrelevancetothepresent?A.IhavevisitedtheGreatWallthreetimeslastyear.B.Shehasfinishedherhomeworksincemorning.C.Theywenttothezoobecausetheyhadseenmanyanimalsthere.D.HehasbeentoShanghaitwoweeksago.Answer:AExplanation:OptionAiscorrectbecause"havevisited"alignswiththepresentperfecttense'susageforpastactionswithpresentresults.OptionBuses"sincemorning"incorrectlywithpresentperfect;"fortwoweeks"wouldbeappropriate.OptionCemployssimplepastandpastperfectwithoutpresentrelevance.OptionDmixespresentperfectwithanillogicaltimeadverbial("twoweeksago").The11thunitemphasizespresentperfectwith"ever,""never,"ortimeexpressionslike"for/since."2.Accordingtothe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,whichsentenceproperlyusesthesecondconditionaltodescribeahypotheticalsituation?A.Ifitrainstomorrow,wewillcancelthepicnic.B.Shewouldcallyouifyouwereintrouble.C.Theymightmissthetrainunlesstheyleavesoon.D.IfIwereyou,Iwouldapologizeimmediately.Answer:DExplanation:Thesecondconditional(if+pastsubjunctive,mainclausepastsubjunctive)isexemplifiedinD("IfIwereyou,Iwouldapologize").OptionAusesfirstconditional.OptionBhasaninvertedmainclausebutlacksapastsubjunctiveinthe"if"clause.OptionCemploys"might"and"unless,"whichdeviatefromthesecondconditionalstructure.Unit11focusesonconditionalsentences,particularlythesecondtypeforunrealpresent/futurescenarios.3.Inthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,whichsentencecorrectlyusesthepassivevoicetoemphasizetheobject?A.Theteachergaveusmanyexercisesyesterday.B.Manyexercisesweregiventousbytheteacheryesterday.C.Weweregivenmanyexercisesbytheteacheryesterday.D.Manyexerciseshavebeengiventousbytheteacherrecently.Answer:CExplanation:Thepassivevoice("be+pastparticiple")shiftsfocustotheobject.OptionCiscorrectas"weregiven"passivevoicehighlights"manyexercises."OptionAisactive.OptionBhasinvertedwordorderbutlacks"be"beforetheparticiple.OptionDusespresentperfectpassive,whichcontradictsthe"yesterday"context.Unit11teachespassivevoiceconstructionandusage.4.Basedonthe2026ChongqingSujiujuniorhighschoolEnglishUnit11grammarsyllabus,whichsentencecorrectlyusesthepastperfectcontinuoustense?A.Shehadwrittentheessaywhenthephonerang.B.Theywereplayingbasketballwhenitstartedtorain.C.HehasbeenstudyingEnglishforfiveyears.D.Themoviehadbeenwatchingbyusfortwohourswhenweleft.Answer:AExplanation:Thepastperfectcontinuous("hadbeen+-ing")describesanongoingpastactionbeforeanotherpastevent.OptionAiscorrect("hadbeenwriting").OptionBusessimplepast.OptionCispresentperfectcontinuous.OptionDhasincorrectpassivestructure("hadbeenwatching").Unit11coverspastperfecttensesforsequenceofevents.5.Inthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,whichsentencecorrectlyusesthefutureperfecttensetodescribeanactioncompletedbeforeafuturetime?A.TheywillhavefinishedtheprojectbynextTuesday.B.Shehasboughtanewcarlastmonth.C.HewouldhavetraveledtoEuropeifhehadtime.D.Themeetingwillstartat9a.m.tomorrow.Answer:AExplanation:Thefutureperfect("willhave+pastparticiple")indicatescompletionbeforeafuturepoint.OptionAiscorrect.OptionBusespresentperfect.OptionCemploysthirdconditional.OptionDissimplefuture.Unit11introducesfutureperfectforplannedfuturecompletions.6.Accordingtothe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,whichsentencecorrectlyusesthepresentperfectcontinuoustensetodescribeanaction'sdurationuptothepresent?A.IhavebeenstudyingEnglishforthreeyears.B.ShehasbeentoParistwiceinherlife.C.TheywereplayingsoccerwhenIarrived.D.Hehasfinishedhisdinneralready.Answer:AExplanation:Thepresentperfectcontinuous("have/hasbeen+-ing")emphasizesduration.OptionAiscorrect.OptionBusespresentperfectsimple.OptionCispastcontinuous.OptionDispresentperfectsimple.Unit11distinguishesbetweenperfectandcontinuoustenses.7.Inthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,whichsentencecorrectlyusesthethirdconditionaltodescribeanunrealpastsituation?A.IfIhadstudiedharder,Iwouldhavepassedtheexam.B.Shewillcallyouifyouneedhelp.C.Theymightmissthebusunlesstheyleavesoon.D.Hecansolvethisproblemifhetries.Answer:AExplanation:Thethirdconditional("if+pastperfect,wouldhave+pastparticiple")addresseshypotheticalpastscenarios.OptionAiscorrect.OptionBisfirstconditional.OptionCuses"might"and"unless."OptionDisfirstconditional.Unit11coversunrealpastconditions.8.Basedonthe2026ChongqingSujiujuniorhighschoolEnglishUnit11grammarfocus,whichsentencecorrectlyusesthepresentperfecttensetodescribealifeexperience?A.IhavevisitedtheGreatWalllastsummer.B.Shewenttotheconcertyesterdayevening.C.Theyhavebeenlivinginthiscitysince2010.D.Hehasfinishedhishomeworkfiveminutesago.Answer:CExplanation:Thepresentperfect("have/has+pastparticiple")isusedforlifeexperiences.OptionCiscorrect.OptionAusespastperfectwithanillogicaltimeadverbial.OptionBissimplepast.OptionDusespresentperfectsimplewithaninappropriatetimephrase.Unit11emphasizespresentperfectfor"ever/never."9.Inthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,whichsentencecorrectlyusesthepastperfecttensetodescribeanactioncompletedbeforeanotherpastevent?A.Sheboughtanewdresswhenshesawthemodel.B.Theyhavefinishedthegameby5p.m.yesterday.C.Hewouldcallyouifyouwereintrouble.D.Thetrainhadleftwhenwearrivedatthestation.Answer:DExplanation:Thepastperfect("had+pastparticiple")indicatescompletionbeforeanotherpastaction.OptionDiscorrect.OptionAissimplepast.OptionBusespresentperfectwithpasttime.OptionCissecondconditional.Unit11teachespastperfectforsequenceinpastevents.10.Accordingtothe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,whichsentencecorrectlyusesthesimplefuturetensetoexpressafutureplan?A.Shewillbevisitinghergrandparentsnextmonth.B.TheyhavebeentravelingtoEuropefortwoweeks.C.Hewouldgotothepartyifhehadtime.D.Themeetingwillstartat10a.m.tomorrow.Answer:AExplanation:Thesimplefuture("will+baseverb")isusedforfutureintentions.OptionAiscorrect.OptionBusespresentperfectcontinuous.OptionCissecondconditional.OptionDissimplefuturebutlackssubject-verbagreement("willstart").Unit11coversfuturetensesforplans.二、填空题（每空2分，共20分）1.Accordingtothe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,fillintheblanktocompletethesentenceusingthecorrectformofthepresentperfecttense:"I______(notsee)himforthreeyears."Answer:havenotseenExplanation:Thepresentperfectnegative("have/hasnot+pastparticiple")isrequired."Not"comesbefore"have."Unit11teachespresentperfectnegationforuncompletedpastactions.2.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,fillintheblanktocompletethesentenceusingthecorrectformofthepastperfecttense:"Whentheteacherarrived,thestudents______(alreadyfinish)theirtest."Answer:hadalreadyfinishedExplanation:Thepastperfectcontinuous("hadbeen+-ing")indicatesanactioncompletedbeforeanotherpastevent."Already"emphasizescompletion.Unit11coverspastperfectforsequenceinpastnarratives.3.Basedonthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,fillintheblanktocompletethesentenceusingthecorrectformofthesecondconditional:"IfI______(be)you,I______(study)harderfortheexam."Answer:were,wouldstudyExplanation:Thesecondconditionalrequirespastsubjunctive("were")inthe"if"clauseand"would+baseverb"inthemainclause.Unit11teacheshypotheticalpastconditions.4.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,fillintheblanktocompletethesentenceusingthecorrectformofthepresentperfectcontinuoustense:"She______(be)workingonthisprojectforsixmonthsbeforeshegotpromoted."Answer:hadbeenbeingExplanation:Thepastperfectcontinuous("hadbeen+-ing")describesanongoingpastactionbeforeanotherpastevent.Unit11distinguishespastperfectcontinuousfromsimplepastperfect.5.Accordingtothe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,fillintheblanktocompletethesentenceusingthecorrectformofthefutureperfecttense:"BynextTuesday,they______(finish)theirresearchpaper."Answer:willhavefinishedExplanation:Thefutureperfect("willhave+pastparticiple")indicatescompletionbeforeafuturetime.Unit11introducesfutureperfectforplannedfutureactions.6.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,fillintheblanktocompletethesentenceusingthecorrectformofthesimplefuturetense:"Ifit______(rain)tomorrow,we______(postpone)thepicnic."Answer:rains,willpostponeExplanation:Thefirstconditionalrequirespresenttenseinthe"if"clauseand"will+baseverb"inthemainclause.Unit11teachesconditionalsentencesforrealfuturesituations.7.Basedonthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,fillintheblanktocompletethesentenceusingthecorrectformofthepassivevoice:"Thebook______(write)byafamousauthorlastyear."Answer:waswrittenExplanation:Thepassivevoice("be+pastparticiple")shiftsfocustotheobject."Was"agreeswith"thebook."Unit11coverspassivevoiceconstructionandusage.8.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,fillintheblanktocompletethesentenceusingthecorrectformofthepresentperfecttense:"I______(notsee)mybrothersincehemovedtoanothercity."Answer:havenotseenExplanation:Thepresentperfectnegative("have/hasnot+pastparticiple")isusedforuncompletedpastactionswithpresentrelevance.Unit11emphasizespresentperfectforlifeexperiences.9.Accordingtothe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,fillintheblanktocompletethesentenceusingthecorrectformofthepastperfecttense:"Whenthepolicearrived,thethief______(alreadyescape)."Answer:hadalreadyescapedExplanation:Thepastperfectcontinuous("hadbeen+-ing")indicatesanactioncompletedbeforeanotherpastevent."Already"emphasizescompletion.Unit11teachespastperfectforsequenceinpastnarratives.10.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,fillintheblanktocompletethesentenceusingthecorrectformofthesimplefuturetense:"Ifyou______(study)harder,you______(pass)theexam."Answer:studied,willpassExplanation:Thesecondconditionalrequirespastsubjunctive("studied")inthe"if"clauseand"will+baseverb"inthemainclause.Unit11teacheshypotheticalpastconditions.三、判断题（每题2分，共20分）1.Accordingtothe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,thesentence"ShehasbeentoLondontwice"correctlyusesthepresentperfecttensetodescribealifeexperience.Answer:TrueExplanation:Thepresentperfect("hasbeento")isappropriateforlifeexperiences.Unit11emphasizespresentperfectfor"ever/never."2.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,thesentence"IfIhadstudiedharder,Iwouldhavepassed"correctlyusesthethirdconditionaltodescribeanunrealpastsituation.Answer:TrueExplanation:Thethirdconditional("if+pastperfect,wouldhave+pastparticiple")addresseshypotheticalpastscenarios.Unit11teachesunrealpastconditions.3.Basedonthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,thesentence"TheywillhavefinishedtheprojectbynextTuesday"correctlyusesthefutureperfecttensetodescribeanactioncompletedbeforeafuturetime.Answer:TrueExplanation:Thefutureperfect("willhave+pastparticiple")indicatescompletionbeforeafuturepoint.Unit11introducesfutureperfectforplannedfuturecompletions.4.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,thesentence"Thebookwaswrittenbyafamousauthorlastyear"correctlyusesthepassivevoicetoemphasizetheobject.Answer:TrueExplanation:Thepassivevoice("be+pastparticiple")shiftsfocustotheobject."Waswritten"agreeswith"thebook."Unit11coverspassivevoiceconstructionandusage.5.Accordingtothe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,thesentence"Ihavenotseenmybrotherforthreeyears"correctlyusesthepresentperfectnegativetodescribeanuncompletedpastaction.Answer:TrueExplanation:Thepresentperfectnegative("have/hasnot+pastparticiple")isusedforuncompletedpastactionswithpresentrelevance.Unit11teachespresentperfectnegation.6.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,thesentence"Shewillcallyouifyouneedhelp"correctlyusesthefirstconditionaltodescribearealfuturesituation.Answer:TrueExplanation:Thefirstconditional("if+presenttense,will+baseverb")addressesrealfutureconditions.Unit11coversconditionalsentencesforrealfuturesituations.7.Basedonthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,thesentence"Hewouldgotothepartyifhehadtime"correctlyusesthesecondconditionaltodescribeahypotheticalfuturesituation.Answer:TrueExplanation:Thesecondconditional("if+pastsubjunctive,would+baseverb")addresseshypotheticalfuturescenarios.Unit11teacheshypotheticalfutureconditions.8.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,thesentence"Thetrainhadleftwhenwearrivedatthestation"correctlyusesthepastperfecttensetodescribeanactioncompletedbeforeanotherpastevent.Answer:TrueExplanation:Thepastperfect("had+pastparticiple")indicatescompletionbeforeanotherpastaction.Unit11teachespastperfectforsequenceinpastevents.9.Accordingtothe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,thesentence"IhavebeenstudyingEnglishforthreeyears"correctlyusesthepresentperfectcontinuoustensetodescribeanaction'sdurationuptothepresent.Answer:TrueExplanation:Thepresentperfectcontinuous("have/hasbeen+-ing")emphasizesduration.Unit11distinguishesbetweenperfectandcontinuoustenses.10.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,thesentence"IfIwereyou,Iwouldapologizeimmediately"correctlyusesthesecondconditionaltodescribeahypotheticalpresentsituation.Answer:TrueExplanation:Thesecondconditional("if+pastsubjunctive,would+baseverb")addresseshypotheticalpresentscenarios.Unit11teacheshypotheticalconditions.四、简答题（每题2分，共16分）1.Accordingtothe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,explainthedifferencebetweenthepresentperfectandthepresentperfectcontinuoustenses.Answer:Thepresentperfect("have/has+pastparticiple")emphasizestheresultorrelevanceofapastactiontothepresent,oftenwithtimeexpressionslike"ever/never"or"for/since."Thepresentperfectcontinuous("have/hasbeen+-ing")emphasizesthedurationofapastactionuptothepresent,oftenwith"for/since."Forexample,"Ihavewrittenthreeletters"(result)vs."Ihavebeenwritingforthreehours"(duration).Unit11distinguishesthesetensesfordifferenttimefocuses.2.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,describehowtoformthethirdconditional.Answer:Thethirdconditional("if+pastperfect,wouldhave+pastparticiple")isusedforhypotheticalpastsituations.Forexample,"IfIhadstudiedharder,Iwouldhavepassed."The"if"clauseusespastperfect("had+pastparticiple"),andthemainclauseuses"wouldhave+pastparticiple."Unit11teachesthisstructureforunrealpastscenarios.3.Basedonthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,whenshouldthepassivevoicebeusedinwriting?Answer:Thepassivevoice("be+pastparticiple")shouldbeusedwhentheobjectofanactionismoreimportantthanthesubject,orwhenthesubjectisunknown/unimportant.Forexample,"Thebookwaswrittenbyafamousauthor."Unit11emphasizespassivevoiceforobjectfocusorunknownsubjects.4.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,explainhowtoformthefutureperfecttense.Answer:Thefutureperfect("willhave+pastparticiple")isformedbycombining"willhave"withthepastparticipleofthemainverb.Forexample,"BynextTuesday,theywillhavefinishedtheirproject."Unit11introducesthistenseforactionscompletedbeforeafuturetime.5.Accordingtothe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,whatisthepurposeofusingconditionalsentencesinEnglish?Answer:Conditionalsentencesexpresshypotheticalorrealsituations,showingcause-effectrelationshipsorfuturepossibilities.Forexample,firstconditional("Ifitrains,wewillcancelthepicnic")forrealfutureconditions,secondconditional("IfIhadtime,Iwouldtravel")forhypotheticalpresent/future,andthirdconditional("IfIhadstudied,Iwouldhavepassed")forunrealpastscenarios.Unit11teachesthesestructuresfordifferenthypotheticalsituations.6.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,describehowtoformthepastperfecttense.Answer:Thepastperfect("had+pastparticiple")isformedbycombining"had"withthepastparticipleofthemainverb.Forexample,"Whentheteacherarrived,thestudentshadfinishedtheirtest."Unit11teachespastperfectforsequenceinpastevents.7.Basedonthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,whenshouldthesimplefuturetensebeusedinwriting?Answer:Thesimplefuture("will+baseverb")shouldbeusedforfutureplans,predictions,orpromises.Forexample,"Shewillvisithergrandparentsnextmonth."Unit11emphasizessimplefutureforstraightforwardfuturestatements.8.Inthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,explainthedifferencebetweenthepresentperfectcontinuousandthesimplepastperfecttenses.Answer:Thepresentperfectcontinuous("have/hasbeen+-ing")emphasizesthedurationofapastactionuptothepresent,oftenwith"for/since."Thesimplepastperfect("had+pastparticiple")emphasizescompletionbeforeanotherpastevent,withoutdurationfocus.Forexample,"Ihadbeenwritingfortwohours"(duration)vs."Ihadwrittenthreeletters"(completion).Unit11distinguishesthesetensesfordifferenttimefocuses.五、应用题（每题4分，共24分）1.Inthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,writeaparagraphofatleastfivesentencesusingatleastfourdifferenttenses(presentperfect,pastperfect,futureperfect,simplefuture)todescribeadayinyourlife.Answer:"IhavewokenupearlythismorningbecauseIhaveanexamtomorrow.Lastnight,IhadstudiedforthreehoursbeforeIwenttobed.Bynextweek,Iwillhavefinishedallmyrevision.IfIpasstheexam,Iwillcelebratewithmyfriends.Nextyear,Iwillapplyforascholarshiptostudyabroad."Unit11teachesmultipletensesfordifferenttimeperspectives.2.Basedonthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,writeadialoguebetweentwostudentsdiscussingtheirweekendplansusingconditionalsentences(firstandsecondconditionals).Answer:StudentA:"IfitrainsonSunday,whatwillyoudo?"StudentB:"Ifitrains,Iwillstayhomeandwatchamovie."StudentA:"Whatwouldyoudoifyouhadmoretime?"StudentB:"IfIhadmoretime,Iwouldgotothelibraryandreadabook."Unit11emphasizesconditionalsentencesforhypotheticalsituations.3.Inthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,writeashortstoryofatleastthreesentencesusingthepassivevoicetodescribeamysteriousevent.Answer:"Thewindowwasbrokenlastnight.Thepolicehadbeencalledbytheneighbors.Thethiefhadescapedbeforethepolicearrived."Unit11teachespassivevoiceforobjectfocusorunknownsubjects.4.Basedonthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,writealettertoafriendusingthepresentperfecttensetodescribeyourrecentexperiences.Answer:"DearTom,Ihavevisitedthemuseumlastweek.IhavebeenlearningSpanishforsixmonths.Ihavenotseenyousincewegraduated.Ifyouarefreenextmonth,weshouldmeetup.Haveagreatday!"Unit11emphasizespresentperfectforlifeexperiences.5.Inthe2026ChongqingSujiujuniorhighschoolEnglishtextbook's11thunit,writeasetofinstructionsformakingasandwichusingthesimplefuturetense.Answer:"First,youwillcutthebread.Then,youwillspreadbutteronthebread.Next,youwilladdlettuceandtomatoes.Finally,youwillputthebreadtogether.Enjoyyoursandwich!"Unit11emphasizessimplefutureforstraightforwardfuturestatements.6.Basedonthe2026ChongqingSujiujuniorhighschoolEnglishcurriculumforUnit11,writeaspeechaboutyourfuturegoalsusingthefutureperfecttensetodescribeplannedachievements.Answer:"BythetimeIfinishhighschool,Iwillhavelearnedfivelanguages.Bynextyear,Iwillhavecompletedmyfirstnovel.By2030,Iwillhavetraveledtoatleasttencountries.IfIworkhard,Iwillachievemydreams.Thankyou!"Unit11introducesfutureperfectforplannedfuturecompletions.【标准答案及解析】一、单项选择题1.AExplanation:Thepresentperfecttense("havevisited")iscorrectforpastactionswithpresentrelevance.OptionBuses"sincemorning"incorrectlywithpresentperfect;"fortwoweeks"wouldbeappropriate.OptionCmixessimplepastandpastperfectwithoutpresentrelevance.OptionDmixespresentperfectwithanillogicaltimeadverbial("twoweeksago").2.DExplanation:Thesecondconditional("IfIwereyou,Iwouldapologize")iscorrect.OptionAisfirstconditional.OptionBhasaninvertedmainclausebutlackspastsubjunctive.OptionCuses"might"and"unless,"whichdeviatefromsecondconditionalstructure.3.CExplanation:Thepassivevoice("weregiven")shiftsfocustotheobject.OptionAisactive.OptionBhasinvertedwordorderbutlacks"be"beforetheparticiple.OptionDusespresentperfectpassive,whichcontradictsthe"yesterday"context.4.AExplanation:Thepastperfectcontinuous("hadbeenwriting")describesanongoingpastactionbeforeanotherpastevent.OptionBusessimplepast.OptionCispresentperfectcontinuous.OptionDhasincorrectpassivestructure.5.AExplanation:Thefutureperfect("willhavefinished")indicatescompletionbeforeafuturepoint.OptionBusespresentperfectwithpasttime.OptionCemploysthirdconditional.OptionDissimplefuture.6.AExplanation:Thepresentperfectcontinuous("havebeenstudying")emphasizesduration.OptionBusespresentperfectsimple.OptionCispastcontinuous.OptionDispresentperfectsimple.7.AExplanation:Thethirdconditional("IfIhadstudied,Iwouldhavepassed")addresseshypotheticalpastscenarios.OptionBisfirstconditional.OptionCuses"might"and"unless."OptionDisfirstconditional.8.CExplanation:Thepresentperfect("havebeenliving")iscorrectforlifeexperiences.OptionAusespastperfectwithanillogicaltimeadverbial.OptionBissimplepast.OptionDusespresentperfectsimplewithaninappropriatetimephrase.9.DExplanation:Thepastperfect("hadescaped")indicatescompletionbeforeanotherpastevent.OptionAissimplepast.OptionBusespresentperfectwithpasttime.OptionCispastperfectcontinuous.10.AExplanation:Thesimplefuture("willbevisiting")iscorrectforfutureplans.OptionBusespresentperfectcontinuous.OptionCissecondconditional.OptionDissimplefuturebutlackssubject-verbagreement.二、填空题1.havenotseenExplanation:Thepresentperfectnegative("have/hasnot+pastparticiple")isrequired."Not"comesbefore"have."2.hadalreadyfinishedExplanation:Thepastperfectcontinuous("hadbeen+-ing")indicatesanactioncompletedbeforeanotherpastevent."Already"emphasizescompletion.3.were,wouldstudyExplanation:Thesecondconditionalrequirespastsubjunctive("were")inthe"if"clauseand"would+baseverb"inthemainclause.4.hadbeenbeingExplanation:Thepastperfectcontinuous("hadbeen+-ing")describesanongoingpastactionbeforeanotherpastevent.5.willhavefinishedExplanation:Thefutureperfect("willhave+pastparticiple")indicatescompletionbeforeafuturetime.6.rains,willpostponeExplanation:Thefirstconditionalrequirespresenttenseinthe"if"clauseand"will+baseverb"inthemainclause.7.waswrittenExplanation:Thepassivevoice("be+pastparticiple")shiftsfocustotheobject."Was"agreeswith"thebook."8.havenotseenExpl