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陕西省澄城县寺前中学高一英语learningaboutlanguage情态动词的用法导学案新人教版课题grammar班级授课（完成）时间教师（学生）教学目标知识与技能情态动词的用法过程与方法情感态度与价值观重点难点Oughttohavetoneeddareand情态动词+havedone教学方法学生自学教学过程新知导学备注划出课文中含有情态动词的句子并指出他们的用法注明知识要求：A“识记类”B“理解类”C“应用类”D“能力提升类”合作探究备注may/might:1）表示允许或请求；2）表示可能或推测；3）may放在句首，表示祝愿。MayIgohomenow?(permission)Ifyoulosetoomuchblood,youmaydie.(possibility)Hemightbeathome.MayGodblessyou!Maynot“可能不”cannot“不可能”3.must/haveto：1）必须2）推测否定结构中：don'thaveto=neednot表示"不必"，mustn't表示"禁止"。例如：Youdon'thavetotellhimaboutit. 你不一定要把此事告诉他。Youmustn'ttellhimaboutit. 你不得把这件事告诉他。haveto/havegotto的用法must:偏偏WhymustitrainonSunday?Listen,theremustbesomechildrenintheroom.4.表示推测的用法can,could,may,might,must皆可表示推测，其用法如下：对现在情况的推测:情态动词+动词原形，此时动词通常为系动词。肯定：must/may/might+besth./dosth./bedoingsth.否定：can/couldnot+besth./dosth./bedoingsth疑问：Can/Could+besth./dosth./bedoingsthEg:Idon'tknowwheresheis,shemaybeinWuhan.2）对过去情况的推测。肯定：must/may/might+havebeen/done否定：can/couldnot+havebeen/done疑问：Can/Could+havebeen/doneEg:Theroadiswet.Itmusthaverainedlastnight.地是湿的，昨天晚上一定下雨了。3）对过去正在发生事情的推测:情态动词+动词的现在完成进行时。Eg:Yourmothermusthavebeenlookingforyou.你妈妈一定一直在找你。4)注意其反意疑问句的形式：Hemustbeathome,isn’the?Theymustbeintheclassroom,aren’tthey?HemayhavewatchedTVyesterday,didn’the?Shemusthavefinishedherhomework,hasn’tshe?5.will/would:1)表请求、建议；would比will委婉Wouldyoulikesomecoffee?Itishot.Willyouopenthewindows?32)表意志、愿望和决心I’lldomybesttocatchupwiththem.3)willbe/willhavedone表推测，用于第二、三人称。前者表对目前情况的推测；后者表对已完成的动作或事态的推测。Thiswillbethebookyouwant.Hewillhavearrivedbynow.4)usedto/would的区别5）would表料想或猜想Itwouldbeabouttenwhenhelefthome.Ithoughthewouldhavetoldyouallaboutit.6)will表自然习惯，总是….Oilwillfloatonwater.Fishwilldiewithoutwater.6.shall/should1)shall用于1、人称的疑问句中，征求意见。Whatshallweeatthisevening?2)shall用于2、3人称，表命令、许诺、恐吓、警告。Onedayyoushallbepunished.YoushallhavethebookafterIfinishedit.3)should表劝告、建议、命令，同义词是：oughtto。疑问句中常用should代替oughtto.Youshouldgotobednow.ShouldIopenthedoor?4)should+havedoneYoushouldhavestartedearlier.7.oughtto1)用于第一人称，表有责任或有必要做某事。Weoughttobemorecarefulwithourhomework.2)用于第二、三人称，表建议或劝告。Yououghttofollowyourteacher’sadvice.Sheoughtnottogoalone.3)oughtto+havedone:本该…；I’msorry.Ioughttohavetoldyouthismorning.8.need/dareneedn’thavedone这两词既可做实义动词用，又可做情态动词用。作为情态动词，两者都只能用于疑问句，否定句和条件句。need作实义动词时后面的不定式必须带to，而dare作实义动词用时,后面的to时常可以被省略。9.hadbetter表示"最好"，相当于一个助动词，它只有一种形式，它后面要跟动词原形。hadbetterhavedonesth表示与事实相反的结果，意为"本来最好"。例如：Youhadbetterhavecomeearlier.你本该来得早一点。Needyougoyet?你要走了吗？Yes,Imust./No,Ineedn't.是的，我要走了/不，不急着走。10.wouldrather表示"宁愿" wouldratherdo wouldrathernotdo wouldrather…than… 宁愿…而不愿。Iwouldratherstayherethangohome.=Iwouldstayhereratherthangohome.当堂检测备注1).Peter___comewithustonight,butheisn'tverysureyet.A.must B.may C.can D.will2).---CouldIborrowyourdictionary? ---Yes,ofcourse,you____. A.might B.will C.can D.should3).---ShallItellJohnaboutit? ---No,you___.I'vetoldhimalready. A.needn't B.wouldn't C.mustn't D.shouldn't4).---Don'tforgettocometomybirthdaypartytomorrow.---______.A.Idon't B. Iwon't C.Ican't D.Ihaven't5).Tomoughtnotto___meyoursecret,buthemeantnoharm. A.havetold B.tell C.betelling D.havingt拓展提升备注用适当的情态动词填空Ihavenotaraincoatwithme.thatiswhyI_______waituntiltherainstops._____IwaterthetreesonTuesday?-----No,youneedn’t.HeissostrongthatI____fightagainsthim.We____havereceivedtheletteryesterday,butitdidn’tarrive.备注3教（学）后反思3
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