一、时态和语态1.如何解答时态问题例1：You’vealreadymissedtoomanyclassesthisterm.You______justlastweek.A.missedB.wouldmissC.hadmissedD.havemissed例2：AnneaskedTom______thekey.A.whenheleftB.wherehehadleftC.howheleftD.whydidheleft考试重点：2.与完成时有关的时态★现在完成时(havedone)since,for/inthepastfewmonths,uptonow例1：Collectingtoycarsasahobbybecomesincreasinglypopularduringthepastfiftyyears.ABCD例2：English______inanewwayatmycollegeinthepastfewyears.A.hasbeentaughtB.wasbeingtaughtC.hasbeentaughtD.hadbeentaught.★过去完成时(haddone)例3：AnneaskedTom______thekey.A.whenheleftB.wherehehadleftC.howheleftD.whydidheleft例4：Thechemistryclass_____forfiveminuteswhenwehurriedthere.A.hadbeenonB.hadbegunC.hasbeenonD.wouldbegan★将来完成时(willhavedone)by例5：We’relateIexpectthefilm_____bythetimewegettothecinema.A.hadalreadystartedB.havealreadyC.willalreadyhavestartedD.havealreadybeenstarted.★现在完成进行时(havebeendoing)例6：Itseemsoil___________fromthispipeforsometime.We'llhavetotakethemachineaparttoputitright.A.hadleakedB.isleakingC.leakedD.hasbeenleaking★过去完成进行时(hadbeendoing)★将来完成进行时(willhavebeendoing)例7：Bythetimeyouarrivethisevening,_______fortwohours.A.IwillstudyB.IwillhavebeenstudiedC.IhadstudiedD.Iwillhavebeenstudying.3.在时间和条件状语从句中不用将来时态▲用一般现在时代替一般将来时例1：Whenthemixture_____,itwillgiveoffapowerfulforce.A.willheatB.willbeheatedC.isheatedD.hasheated例2：pleasebesuretotelephonemethenexttimeyou______.A.willcomeB.wouldcomeC.shallcomeD.come▲用现在完成时代替将来完成时例3：Smithistostudymedicineassoonashe_______militaryservice.A.willfinishB.hasfinishedC.finishD.wouldfinish注意：例4：Noonecanbesureifthecarondisplayfitshimorheruntilheorshe______them.A.triesB.willtryC.aretryingD.havetried4.考试小窍门◆考试中如果遇到与完成时态相关的选项，要重点加以研读，一般说来是正确答案。二、情态动词1.几个情态动词的否定式的含义can’tmaynotmustn’tneed’t2.表示推测的几个情态动词用法★must表示肯定的推测，意思是“一定”+do对现在情况的推测must+havedone对过去情况的推测例1：I________asleepinthecorner,forIremembernothingofwhathappenedduringthenight.A.mightfallB.mustfallC.musthavefallenD.canhavefallen★can’t/could’t表示否定的推测，意思是“不可能”+do对现在情况的推测can’t/couldn’t+havedone对过去情况的推测★may/mightnot表示可能性很小的推测，意思是“也许…”+do对现在情况的推测may/might+havedone对过去情况的推测3.情态动词的完成时虚拟语气的用法needn’thavedoneshouldhavedoneshouldnothavedoneoughttohavedonecouldhavedone4.考试小窍门在遇到情态动词加完成时和情态动词加原形同时出现的情况下，一般说来情态动词加完成时是正确答案。×Mustdo√Musthavedone三、虚拟语气赵文通考试重点：1.条件句中的虚拟语气例１：IwouldaskGeorgetolendusthemoneyifI______him.A.hadknownB.haveknownC.knewD.wouldknow例２：Ifabettermaterial______,thestrengthofthepartwouldhavebeenincreased.A.hadbeenusedB.hadbeenusingC.beingusedD.using条件句中的虚拟语气需要注意以下三点：如果条件句中有were,had,should时，可以把if省略，然后把这三个单词提前，形成倒装。例3：_____theadviceofhisfriends,hewouldnothavesufferedsuchaheavylossinhisbusiness.A.IfhetookB.ifheshouldtakeC.WerehetotakeD.Hadhetaken含蓄条件句中虚拟语气的应用三级考试中经常出现的三个句型：Butfor/without…，…………,otherwise/or………,but/though….例４：Butforyourhelp,I_____theworkintime.A.didnotfinishB.couldnotfinishA.willnotfinishD.wouldnothavefinished例５：...
