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1、2019-2020年高中英语Unit2HealthyEatingGrammar导学案（学生版）新人教版必修3课题名称第周星期课型Grammar主备课人1.Knowledgeaims:LearnandgrasptheusagesofModalVerbII2.Abilityaims:UseModalVerbIIcorrectlyandproperly.MakeclearabouttheModalverbs:ought/oughtnotto;should/shouldnot;mustn’t;(don’t)haveto;二次备课MastertheusageoftheModalverbs在课文中
2、找出含有情态动词的句子12345问题生成记录：1.oughtto／should1)should和oughtto都为“______”，用于各种人称。oughtto的语气稍重一些。Yououghtto(should)followyourteacher’sadvice.2)表示主语的义务或责任：Youshouldtakecareofyoursister.4)should和oughtto后面跟动词不定式的完成式,Youshould/oughttohavemadethedecisionaweekago.Ishouldn'thavemadesuchafoolishmistake.2.must/ha
3、veto1).must的用法 表示_____义务和必要, 主要用于肯定句和疑问句, 意思为 “必须，得，；由must引起的疑问句，肯定回答要用____________________, 否定回答要用_________或_________________, 意思是“不必”；must的否定形式mustn’t表示禁止，意思是“_______________”。如： —Must I finish the task right now? —Yes,you must. / Yes, you have to. (—No,youneedn’t./No,youdon’thaveto.不,不必。)2)h
4、ave to 的用法 A.have to表示一种_________________需要，意思是“不得不”。 如： B.have to 的否定形式是don’thaveto,相当于________________。如：Theydon’thavetobuyacomputeratpresent. 3.need/dare（观察句子，总结规律）（1）作为情态动词，need常用于句和句。e.g.Youneedn’tbuythedictionary,forwehaveonelyingonthedesk.Needhedohishomeworkfirst?【注意答语】-----Needyougonow?-
5、----Yes,I./No,I.（3）dare用作情态动词，后跟动词原形，主要用于句,句和句。e.g.Howdareshedothingslikethattome?---Dareyoucatchthemouse?---Idaren’tdothat.Ifyoudaresaythattoourteacher,Iwoulddevoteforyou.4.表“推测，可能性”的情态动词的用法:5.情态动词+havedone用法总结:1.Ithoughtyou_____likesomethingtoread,soIhavebroughtyousomebooks.A.mayB.mightC.would
6、D.must2.Whereismypen?I____it.A.mightloseB.wouldhavelostC.shouldhavelostD.musthavelost3.Ididn’thearthephone.I___asleepA.mustbeB.musthavebeenC.shouldbeD.shouldhavebeen4.---Therewerealreadyfivepeopleinthecar,buttheymanagedtotakemeaswell.----It____acomfortablejourneyA.can’tbeB.shouldn’tbeC.mustn’tha
7、vebeenD.couldn’thavebeen5.It’snearlyseveno’clock.Jack___behereatanymoment.A.mustB.needC.shouldD.could6.---Didthetrainarriveintime?----No.It_______twohoursago.A.musthavearrivedB.oughttohavearrivedC.mustarriveD.oughttoarrive专项
