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1、重庆市南川中学高中英语Unit5FamiliarNeighbourhoodGrammar教案重庆大学版必修4TeachingObjective:◆TolearnModalverbs.◆TomakestudentsgetmorefamiliarwiththeModalandpractiseusingthemindifferentsituations.◆Toenablestudentstomastersomenewwordsandexpressions.Stage3:Pre-stageStep1.Voc
2、abularypresentation(2mins)Teacheraskssomestudentstowritesomemodelverbsthattheyhavelearntbeforeontheblackboard.ModalVerbs:can/could,may/might,will/would,beableto,must,should,haveto,need,shall,oughtto,hadbetter.Step2.Teacherusesthemultimediatoshowtheconc
3、lusiononthescreen.(2mins)ModalVerbs:Possibility:may/mightCertainty:shouldPermission:may/mightSuggestions:may/mightStage4:While-stageStep1.Teachershowssomefeaturesofmodalverbs.(5mins)u情态动词没有人称和数的变化,即情态动词第三人称单数不加-s(haveto,havegotto,beableto除外)。u情态动词不能表示正
4、在发生或已经发生的事情,只表示期待或估计某事的发生。u情态动词本身具有一定词义,但意思不够完整,不能单独做谓语,后接动词原形一起构成谓语部分(oughtto,haveto/havegotto,beableto除外)。u情态动词无非谓语形式,即无不定式、分词等形式。Step2.Sumup(20mins)umay和might1)表示允许或请求;表示没有把握的推测;may放在句首,表示祝愿。e.g.MayGodblessyou!Hemightbeathome.注:might表示推测时,不表示时态。只是可能
5、性比may小。2)成语:may/mightaswell,后面接不带to的不定式，意为"不妨"。e.g.Ifthatisthecase,wemayaswelltry.u表示推测的用法may,might皆可表示推测,其用法如下：情态动词+动词原形,表示对现在或将来的情况的推测,此时动词通常为系动词。e.g.Idon’tknowwheresheis.ShemaybeinWuhan.ushould和oughttoshould和oughtto都为“应该”的意思,可用于各种人称。e.g.---Oughtheto
6、go?---Yes.Ithinkheoughtto.表示要求,命令时,语气由should(应该)、(hadbetter最好)、must(必须)渐强。u情态动词+have+过去分词1)may(might)have+donesth.表示过去,推测过去时间里可能发生的事情。e.g.Philipmay(might)havebeenhurtseriouslyinthecaraccident.Philipcan(could)havebeenhurtseriouslyinthecaraccident.2)shou
7、ldhavedonesth.本应该做某事,而事实上并没有做;否定句表示“不该做某事而做了”。e.g.Youshouldhavebeenmorecarefulinthisexperiment.Heoughtnottohavethrowntheoldclothesaway.(事实上已扔了。)注:oughtto在语气上比should要强。Stage5:Post-stage(7mins)Exercises1.—IsJohncomingbytrain?—Heshould,buthe____not.Helike
8、sdrivinghiscar.A.mustB.canC.needD.may2.—Ihearyou’vegotasetofvaluableAustraliancoins.___Ihavealook?—Yes,certainly.A.DoB.MayC.ShallD.Should3.Oh,I’mnotfeelingwellinthestomach,I___somuchfriedchickenjustnow.A.shouldn’teatB.mustn’thaveeatenC.
