、时态和语态1. 如何解答时态问题例 1You'vealreadymissedtoomanyclassesthisterm.Youjustlastweek.A.missedB.wouldmissC.hadmissedD.havemissed例 2AnneaskedTomthekey.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 1Collectingtoycarsasahobbybecomesincreasinglypopularduringthepastfiftyyears.ABCD例 2Englishinanewwayatmycollegeinthepastfewyears.A.hasbeentaughtB.wasbeingtaughtC.hasbeentaughtD.hadbeentaught.★过去完成时(haddone)例 3AnneaskedTomthekey.A.whenheleftB.wherehehadleftC.howheleftD.whydidheleft例 4Thechemistryclassforfiveminuteswhenwehurriedthere.A.hadbeenonB.hadbegunC.hasbeenonD.wouldbegan★将来完成时(willhavedone)by例 5We'relateIexpectthefilmbythetimewegettothecinema.A.hadalreadystartedB.havealreadyC.willalreadyhavestartedD.havealreadybeenstarted.★现在完成进行时(havebeendoing)例 6Itseemsoilfromthispipeforsometime.We'llhavetotakethemachineaparttoputitright.A.hadleakedB.isleakingC.leakedD.hasbeenleaking★过去完成进行时(hadbeendoing)将来完成进行时(willhavebeendoing)例 7Bythetimeyouarrivethisevening,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 1Whenthemixture,itwillgiveoffapowerfulforce.A.willheatB.willbeheatedC.isheatedD.hasheated例 2pleasebesuretotelephonemethenexttimeyou.A.willcomeB.wouldcomeC.shallcomeD.come▲用现在完成时代替将来完成时例 3Smithistostudymedicineassoonashemilitaryservice.A.willfinishB.hasfinishedC.finishD.wouldfinish例 4Noonecanbesureifthecarondisplayfitshimorheruntilheorshethem.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't+d对现在情况的推测need'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 1Iasleepinthecorner,forIremembernothingofwhat...