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1、GrammarandusageUnit3PastperfecttenseStep1Self-studyGuidanceLearningaims1.Reviewthebasictenseformslearnedbefore.2.Learnandmastertheimportantgrammaritemsofthepastperfecttense.3.Finishsomerelativeexercisestopractisewhatwehavelearned.4.Improveourabilityofu
2、singthegrammaritemscorrectlywiththeteacher’shelp.Self-studyoutlineandrequirements1.Reviewthebasictenseformslearnedbefore.2.Analyzethesentencesgiveninthestudyplan.3.Finishthetasksinfiveminutes.時態(tài)一般進行完成完成進行現(xiàn)在時does/dohas/havedone過去時didwas/weredoing將來時過去將來
3、時動詞時態(tài)表Step2Self-studyChecking時態(tài)一般進行完成完成進行現(xiàn)在時does/dohas/havedone過去時didwas/weredoing將來時過去將來時動詞時態(tài)表am/is/aredoinghas/havebeendoinghaddonewill/shalldowill/shallbedoingwould/shoulddoBythe1920s,hehadbecomean…Upontheirenteringthetomb,Carter’sluckypetbird,which
4、hehadleftinCairo,wasswallowedbyasnake.AfewmonthsafterCarterhadopenedthetomb,...Lead-in:PastperfecttenseHowcanweformthepastperfect?had+verb-edStep3Groupwork&ExpansionTheusageofthepastperfectUpontheirenteringthetomb,Carter’sluckypetbird,whichhehadleftinC
5、airo,wasswallowedbyasnake.CarterlefthisluckypetbirdinCairo.Carter’sluckypetbirdwasswallowedbyasnake.PastPresentWhenIwokeup,ithadstoppedraining.HehadleftwhenIarrived.Shetoldmethatshehadwrittenanewnovel.IfoundthewatchwhichIhadlost.總結(jié)一:過去完成時表示一個動作或狀態(tài)在過去某一
6、時間或動作之前已經(jīng)完成或結(jié)束,即發(fā)生在“過去的過去”。這是一個相對的時態(tài),只有和過去某一時間或某一動作相比較時才使用它。Bytheendoflastyear,myfatherhadworkedinthefactoryfortwentyyears.Bysixo’clockhehadworkedelevenhours.Theusageofthepastperfect總結(jié)二:過去完成時表示某一動作或狀態(tài)在過去某時之前已經(jīng)開始,一直延續(xù)到這一過去時間,而且動作尚未結(jié)束,仍然有繼續(xù)下去的可能。Ihadwant
7、edtohelpbutcouldnotgetthereintime.Theyhadhopedtobeabletocomeandseeyou.Theusageofthepastperfect總結(jié)三:動詞think,want,hope,mean,plan,intend等用過去完成時來表示過去未曾實現(xiàn)的想法,希望,打算或意圖等。Hardlyhadhebeguntospeakwhentheaudienceinterruptedhim.Nosoonerhadhearrivedthanhewentawayaga
8、in.Itwasthethirdtimethatshehadbeenoutofworkthatyear.ItwasthemostinterestingnovelthatIhadeverread.Theusageofthepastperfect總結(jié)四:過去完成時還可用在hardly(scarcely)…when…,nosooner…than…,Itwasthefirst(second,etc)time(that)…,Itwasthemost...that...等固定句型