一、1hadseen;wouldhaveasked2were3havefound4hadbeen;wouldhaveprevented5wouldhavetaken6shouldcome7were8hadseen9stickto10bemade11help12beallowed13came14shouldtake/took15shouldbe;wouldchange16,wouldn’tbe17hadn’thelped18(should)think19hadmet20moves二、改错1.was-were2.livelived3.will-would4.she+had5.not+to6.couldauit7.weathertbe8.would+have.was-were10.can-could11.instead-of12.pay-paid13.ge-went14.I+had15.you+had6.he+had句式转换1.WereIyou…2.Hadheeatent.3.Shoulditsnos.三、PartA:1.drove2.wouldn’thavemade3.hadtied4.have/wouldnothavebought5.shouldbe/were/weretobe6.wouldbepostponed7.wouldn’thavebeen8.werenot9.hadstudied10.weremended11.(should)hold12.shouldhavebroken/broke13.hadunderstood/said14.haddone/did15.had16.came17.hadbeen18.wereaddressing19.isheated20.willstayPartB:1.shouldneed/needed2.wouldtell3.haddecided4.had/taken/came/wouldnotbe5.wouldnotbe6.wouldstop7.shouldnothaveseen/waved8.becut9.havestayed10.worked11.were12.wouldhaveinvited/hadalreadycome13.wouldbe14.drove15.shouldhavearrived16.wouldfeel17.hadbeen/couldnothavedone18.wouldnothavetried19.had20.shouldhavehad辨认并改正错误:1.IshouldbemosthappytogodownwithyoubutIwasverybusyrightthen.(havebeen)2.Ifhergreatgrandfatherwouldhavelivedthreemoredayshewouldhavebeen100yearsold.(hadlived)3.IfGeorgeWashingtonwerepresidenttoday,IwouldhavewonderedwhathewoulddoabouttheUnitedStates’foreignaffairsintheMiddleEast.(wonder)4.ItwassuggestedthatPedrostudiesthematerialmorethoroughlybeforeattemptingtopasstheexamination.(study)5.Hegaveordersthatthehorsesweremadereadyatonceashewaspressedfortime.(shouldbe)6.Thescientistthinksitnecessarythatalltheinventionsofmankindmustbeusedforgood,notforevil.(should)7.Wefeltlikewehadlostafriendwhentheforemanalongwithhisfourassistantswasunfairlydischarged.(feltasif)8.Ifyouwenttolastnight’sgame,Iamsurethatyouwouldhaveenjoyedseeingourteamwin.(hadbeento)9.Ifyouhavebeenlivingheresince1956,isn’titabouttimeyoustarttolookforsomewherenicertolive?(started)10.ThelawIamreferringtorequiresthateveryonewhoownsacarhasaccidentinsurance.(have)11.Iwouldratherthattheydidnottravelduringthebadweather,buttheyinsistthattheymustreturnhometoday.(should)12.Thepoliticalcandidatetalkedasthoughshehasalreadybeenelectedtothepresidency.(had)13.Ifacrisiswastooccur,thoseunfamiliarwiththeprocedureswouldnotknowhowtohandlethesituation.(were)14.Manydeadpeoplewouldnowbealiveiftheydidnotattempttoreturnforsomething.(hadnotattempted)15.OnlyifAlberthadtoldmebeforelastFriday,Iwouldhavegivenhimsomehelp,butnowit’stoolate.(Ifonly)16.IfMoniquehadnotattendedtheconference,shewouldnevermeetheroldfriendDanwhomshehadnotseenforyears.(havemet)17.IfIbroughtwithmeacamerawhentheaccidenthappenedyesterdayImighthavetakenapictureofitmyself.(hadbrought)18.HowIwishJohnknewhowtoapplygrammaticalrulesproperlyandrecognizethefactthatheisnearlyalwaysinthewrong!(recognized)19.IfJohnweretoresignandifHenrywereelectedtotakehisplaceweshouldhavehadmorevigorousleadership.(删除)20.Youmayprefertotravelbyplane,butiftheweatherisbad,youmighthavetousethetraininstead.(may)1.IfonlyIhadasisterlikeyou!2.Whatifwecouldnotfulfilltheplanintime?3.Ifitwerenotforthetesttomorrow,Iwouldgototheconcerttonight.4..Itissuggestedthatwe(should)holdaspeechcontest.5.Youmighthaveaskedmetolendyouahand.6..Itistimewestudiedthisproblemseriously.7.Whatapitythattheyshouldhaveforgottentotellyouaboutit!8。Ifshehadnotpracticedhard,shewouldn’tplaythepianosowell.9.Hedoesn’tpaymuchattentiontostudymethods;otherwisehewouldn’thavefallenbehindtheothers.10.Helooksasifhejustwokeup(or:awakened)11.Allthatisrequiredofthestudentsisthattheyshouldstudyhardandobeythediscipline.12.Hewasverybusyyesterday.Otherwisehewouldhavecometoourget-together.