成人学位英语语法串讲-时态和语态

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1、成人学位英语语法串讲-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.whydidheleft2.与完成时有关的时态★现在完成时(havedone)sinc

2、e,for/inthepastfewmonths,uptonow例1：Collectingtoycarsasahobbybecomesincreasinglypopularduringthepastfiftyyears. ABCD例2：English______inanewwayatmycollegeinthepastfewyears.A.hasbeentaughtB.wasbeingtaughtC.hasbeentaughtD.hadbeentaught.★过去完成时(haddone)例

3、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_____bythetimewegett

4、othecinema.A.hadalreadystartedB.havealreadyC.willalreadyhavestartedD.havealreadybeenstarted.★现在完成进行时(havebeendoing)例6：Itseemsoil___________fromthispipeforsometime.We'llhavetotakethemachineaparttoputitright.A.hadleakedB.isleakingC.leakedD.hasbeenleaki

5、ng　　　　　　第3页　　★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_____,itwillgiv

6、eoffapowerfulforce.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.

7、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。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　　　　　　第3页　　★must表示肯定的推测

8、，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/mig