英语语法英语语法情态动词情态动词考点分析1：基本含义情态动词基本含义Can/could能够、可以May/might可能、可以Will/would愿意should/oughtto应该must必须need需要shall应该，建议dare敢真题演练•Sandydidn’tcometoschooltoday,Ithinkshe_____beill.•Ashould•B.must•C.would•D.shall扩展练习2•（2004上海春季）Youmightjustaswelltellthemanufacturerthatmalecustomers___notlikethedesignofthefurniture.•A.must•B.shall•C.may•D.need扩展练习1•（2008上海）Accordingtotheairtrafficrules,you____switchoffyourmobilephonebeforeboarding.•A.may•B.can•C.wouldD.should•Doyouknowwhosedictionaryitis?•It_____Linda’s.Hernameisonit•A.must•B.can•C.should•D.oughtto精讲：dare的用法•1、用作实义动词，此时其后的动词不定式可带to也可不带to，且dare有人称和数以及时态的变化。•Idaretojumpdownfromthetopofthewall.•Shedoesn'tdare(to)meetherteacher'seyes.•2）情态动词，后跟动词原形，主要用于疑问句、否定句和条件句中。•Howdareshedothingslikethattome?•Dareyoucatchthemouse?•-Idaren'tdothat.Iwonderhowhe____thattotheteacher.A.DaretosayB.DareaskingC.NotdaresayD.DaredsayDare作为情态动词，有时态的变化。考点引申1:Can的特殊含义真题演练•（2003上海）How_______yousaythatyoureallyunderstandthewholestoryifyouhavecoveredonlypartofthearticle?•A.can•B.must•C.need•D.mayShall用法详解•一般情况：•shall第一人称•will第一、二、三人称•特殊情况：•Shall（第二、三人称）：意愿、决心，允诺，命令•Nobodyshallbelateforthemeeting.•Students____becarefulwhiledoingchemicalexperimentsinthelab.•A.dare•B.can•C.shall•D.may•Ithasbeenannouncedthatcandidates_____remainintheirseatsuntilallthepapershadbeencollected.•A.can•B.will•C.shall•D.may考点引申2：mustVS.need辨析动词类型核心含义后接Must情态必须doMustn’t情态一定不能doNeed实义需要todoNeedn’t情态不必要do真题演练•（2004上海）Childrenunder12yearsofageinthatcountry___beunderadultsupervisionwheninapubliclibrary.•A.mustB.mayC.canD.needWrapUp考点分析2：否定形式情态动词（否定形式）含义Can’t不能，不允许，不可能Maynot不允许Wouldn’t不愿意Shouldn’t不应该（客观性）Mustn’t一定不能（主观性）Needn’t不必要（客观性）Shan’t不愿意（第一人称）Darenot不敢真题演练•（2005上海）There____beanydifficultyaboutpassingtheroadtestsinceyouhavepracticedalotinthedrivingschool.•A.mustn't•B.shan't•C.shouldn't•D.needn't客观现实扩展练习1•（2007上海春季）Thebosshasgiveneveryoneaspecialholiday,sowe___gotoworktomorrow.•A.can’t•B.mustn’t•C.needn’t•D.shouldn’t客观现实扩展练习2•（2008上海春季）WhenIwasyoung,IwastoldthatI_____playwithmatches.•A.wouldn’t•B.needn’t•C.mustn’t•D.daren’tItwasbelievedthatIdaren’tplaywithmatches.•Youcan’timaginethatawell-behavedgentleman_____sorudetoalady.(上海2001)•A.might•B.need•C.should•D.would•MayIdotherestoftheworktomorrow?•Yes,ofcourse.You____finishittoday.•A.must•B.can’t•C.mustn’t•D.wouldn’t•MustIreturnthemagazinetoyourightnow?•No,you____.YoumaykeepituntilnextWednesday.•A.needn’tB.can’tC.wouldn’tD.mayWrapUp考点分析3：情态动词+havedoneShouldhavedoneShouldn’thavedoneMust/mustn’thavedone真题演练•（2002上海春季）Oh,I’mnotfeelingwellinthestomach.I___somuchfriedchickenjustnow.•A.shouldn’teat•B.mustn’thaveeaten•C.shouldn’thaveeaten•D.mustn’teat表示动作未发生扩展练习•(2007上海)•—Guesswhat!IhavegotAformytermpaper.•—Great!Youreadwidelyandputalotofworkintoit.•A.mustB.should•C.musthaveD.shouldhave已发生事件对未知事件的推测•2...
