高中英语 unit 2 learning from helen keller grammar教案 重庆大学版必修2

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1、Unit2LearningfromHelenKellerGrammar章节：Book2Unit2课时：1课题名称Unit2Grammar——ModalVerbs(Ⅱ)ModalVerb+havedone三维目标1.Studentsgettoknowthestructuresofmodalverb+havedone.2.Studentscanusemodalverb+havedoneintheirdailylife.3.StudentscansummarizethegrammaticalphenomenonwhilelearningEnglish.重点目标1.

2、Understandthedefinitionofmodalverb+havedone.2.Mastertheusage.难点目标Applymodalverb+havedone导入示标ModalVerb+havedone目标三导Step1.Learning&Doing&Thinking1Whatisthedefinitionofmodalverb+havedone?【Learning】Studytherulemusthavedonecan/couldhavedonemay/mighthavedoneshould/shouldn’thavedoneneedn’

3、thavedone【Doing】1）A:Whyistheroadsowet?B:Itmusthaverainedlastnight.2)A:Wherearethegirls?Couldtheyhavegonehome?B:No,theycan’thavegonehome.It’ssoearly.3)A;Thelightsareoffintheirroom.B:Wherehavetheygone?A:Theymighthavegonetothecinema.4)A:Here’sadollforyourdaughter.B:Thankyousomuch.It’s

4、beautiful.Butyouneedn’thaveboughtit.Youhaveboughtsomanyforher.【Thinking】Whatistherule?______表示对过去事情的肯定推测，译成“一定做过某事”，该结构只用于肯定句。______表示对过去事情的否定推测，译成“不可能做过某事”。______表示对过去行为的怀疑，用于疑问句，译成“可能做过……吗？”。______是虚拟语气，表示对过去事情的假设，意思是本来能够做某事而没有做。______对发生过的事情的推测，意思是“可能已经”或“也许已经”，用于肯定句。______意思是“本

5、来应该做某事，而实际没做。”______表示本来不应表示本来需要做某事而没有做。“______该做某事，而实际做了。含有指责对方或自责的含意。______表示“本来不需要做某事而做了”。Step2.Learning&Doing&Thinking2Whatisthedifference?【Learning】Findtherule.【Doing】Fillintheblanks.1).Theriverisrising.It______lastnight.(rain)2).——IsawMaryinthelibraryyesterday.(see)——You_____

6、_her.She’sbeenabroad.3).Thereisnolightintheroom.Cantheyhavegoneout?4).Givenmoreattention,thetrees______better.(grow)5).—WhathashappenedtoGeorge?—Idon'tknow.He______gotlost.6).He______youmorehelp,eventhoughhewasbusy.(give)7).You______herthetruthearlier.(tell)8).Therewasplentyoftime.

7、She______.(worry)【Thinking】Thedifferencebetweendifferentmodalverb+havedone?Step3.Learning&Doing&Thinking3Whatareusualusages?【Learning】Studytherulebyreadingthesentences.【Doing】1)Harryisfeelinguncomfortable.He______toomuchatthepartylastnight.(2013辽宁)A.coulddrinkB.shoulddrinkC.wouldha

8、veD.musthavedrunk2)Thankyo