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Unit5RevealingNatureUsingLanguage GrammarPastperfect教学设计教学目标Bytheendofthislessonstudentsareableto Knowthestructureofthepastperfecttense;Knowtheusageofthistense;Knowhowtosolvetheproblemsofpastperfect.教学重难点Importantpoint thestructureandtheusageofpastperfect.Difficultpoint howtousethistensetosolvetheproblems.教学过程Step
1.Leadin:aguessinggameAsktwostudentstocompetewitheachotherpickoutthesentenceswhichareusedpastperfect.Thenaskstudentstoconcludethestructureofpastperfect.肯定式haddone否定式hadnotdoneStep
2.theusageofthetenseGivestudentstwosentencesofeachusagethenstudentsgetthepointstogether.
①Beforewegottothetrainstationthetrainhadalreadyleft.我们到达火车站之前,火车就已经离开了©BeforeIcouldsaythankyou”hehadrunaway.我还没来得及说谢谢,他就跑开了Conclusion:表示在过去的某一时间或某一动作之前完成的动作或存在的状态
①Bytheendoflasttermwehadlearnt2000Englishwords.到上学期期末为止,我们已经学习了2000个英语单词了
②Theyhadlivedtherefortenyearsbythen.到那时为止,他们已经在那里住了10年了Conclusion:表示从过去某一时间开始,一直延续到过去的另一个时间的动作,常用的时间状语有bethenbytheendofbythetime.Givestudentsatimelineofpastperfecttohelpunderstandthetense.Step
3.somefixedsentencespatternofthistense
①在“hardly...when/nosooner...than/scarcely…when句型中,主句用过去完成时,从句用一般过去时Eg.Ihadnosoonerreachedhomethanitbegantorain.=NosoonerhadIreachedhomethanitbegantorain.我刚到家就开始下雨了(注意:部分倒装)
②Itwas+一段时间+since从句(从句用过去完成时)Eg.ItwasatleastthreemonthssinceIhadleftBeijing.我离开北京至少有3个月了
③Itwasthefirst/second/・・.time+(that)从句(从句用过去完成时)Eg.ItwasthefirsttimethatIhadchattedonlineinEnglish.那是我第一次用英语在网上聊天Step4givestudentsalearningtip正确运用过去完成时的关键是要正确理解“过去的过去”“过去的过去”是一个相对的时间,即它是相对于一个过去的时间而言的这种相对的“过去的过去”有时通过时间状语体现出来,有时则可能是通过上下文来体现结合题干中的语境来判断两个过去的动作发生的先后顺序,较早发生的那个动作用过去完成时Step5dosomeexerciseHelearn3000wordsbeforehewenttoEngland.Theoldmantoldusthathetraveltomanyplaces.Itwasthethirdtimethatheseesuchalargeanimal.BythetimehegottotheairporttheplanetakeoffBeforeMarydidherhomeworkshewashthedishes.Step
4.Summary在过去某一时间之前已经完成的动作或存在的状态基本用法——PastPerfect动作从过去某一时间开始,一直延续到过去另一时间hardly...when/nosooner...than/scarcely...when常用固定句型Itwas+一段时间+since从句Itwasthefirst/second/...time+that从句Step4Homework完成配套练习。