高一英语人教版必修3-Unit-2-healthy-eating-grammar-课件

Period6GrammarModalVerbsⅡ•oughttohaveto•mustneedI.(Revision)Whatmodalverbs(情态动词)haveyoulearned?can/couldmay/mightwill/wouldshall/should1.Bylunchtimetheywouldallbesold.2.Hisrestaurantoughttobefullofpeople.3.Whatcouldhavehappened?4.Nothingcouldhavebeenbetter?5.Somethingterriblemusthavehappened.6.Iwillhelpyouloseweightandbefitintwoweeks.7.Hecouldn’thaveYongHuigettingawaywithtellingpeoplelies.8.Hehadbetterdosomeresearch.A.Intention(意向)B.Duty(责任)C.Promise(许诺)D.Possibility（可能性）E.Guessing（猜测）(D)(D)(E)(B)(A)(C)(D)(D)Ithinkshe_______apologisetothepublic.You________goandseethedoctor.我认为她应该向公众道歉。你应当去找医生看看病。oughttooughttoFillintheblanksaccordingtotheChinese.We______putonwarmclothesinwinter.冬天的时候，我们不得不穿上温暖的衣服。你需要把面粉和黄油和在一起。You_______mixtheflourandthebutter.havetoneedInEnglandtraffic_____keeptotheleft.在英国，车辆必须靠左行驶。Allpassengers______wearseatbelts.所有乘客都必须系安全带。mustmustneed/needn’toughtto/shouldmust/havetooughtto和should都为“_____”的意思，可用于各种人称。oughtto的语气稍重一些。Yououghtto(should)followyourteacher’sadvice.oughtto／should否定形式：应该oughtnotto/oughtn’tAdviceandduty•should与oughtto•相同点:从道义,义务上应做的事:应该,应当”•不同点:oughtto有引申的用法”按常理应当…,非常可能的事,表应该,侧重责任,义务情态动词考题:1.---Didthetrainarriveintime?----No.It_______twohoursago.A.musthavearrivedB.oughttohavearrivedC.mustarriveD.oughttoarriveBmust的用法1.必须-----Mustwehandinourexercisetoday?------Yes,you______.------No,you_______.------No,you________.must/havetomustneedn’tdon’thaveto•2.MustIdrivetohishouseandpickupthechildren?•No,.A.youshouldn't•B.youmightnot•C.youneedn't•D.youmustn'tChaveto的用法1.must表示一种_____的需要，意思是“必须”无时态变化。2.haveto表示一种____的需要，意思是“不得不”。有时态变化。否定形式：____________主观客观don’thaveto•I_____gonow.•mymotherisill,soI____gonow.musthaveto主观看法客观需要注意对need问句的回答:--NeedIfinishtheworktoday?--Yes,________________.No,________________.No,________________.youmustyouneedn’tyoudon’thavetoneed/needn’t在不表示推测的情态动词中,我们要注意以下方面的问题:1.表示能力、许可的情态动词的用法。表示能力:can,could,beabletobeableto能用于各种时态。can/could只能表示现在或过去的能力。表示许可:may/might,can/couldmight,could比较委婉,一般多用于疑问句。在以could,might表示征询对方意见或表示请求时，回答应相应使用can,may。2.表示否定的情态动词的用法:mustn’t不准;禁止needn’t没必要(=don’thaveto)can’t不能;不可能maynot不可以;可能不shouldn’t不应该(=oughtnotto)部分情态动词的否定式是情态动词中的考点之一。不同的“肯定”程度可按下列层次排列：Heisathome.(事实)Hemustbeathome.(非常肯定的推断)Hecouldbeathome.(很可能)Heoughttobeathome.(很可能)Hemaybeathome.(仅仅可能而已)Hemightbeathome.(或许,非常不确定)Hecouldn’tbeathome.(很可能不在家)Hecan’tbeathome.(一定不在家)Heisn'tathome.(事实)1.Whereismypen?I______it.A.mightloseB.wouldhavelostC.shouldhavelostD.musthavelost2.Ididn’thearthephone.I_____asleep.A.mustbeB.musthavebeenC.shouldbeD.shouldhavebeen课堂练兵3.Ted,you_____playwiththeknife.You______hurtyourself.A.don’thaveto;mustB.mustn’t;mayC.needn’t;canD.oughtn’tto;haveto4.—Musthecometoapologizetoyouhimself?—Yes,he______.A.canB.mustC.mayD.need5.—MustItakeataxitogototheSummerPalace?—No,you______.Youcanwalkthere.A.can’tB.don’thavetoC.mustn’tD.oughtnotto•1.Whatdoyoumean,thereareonlyten•tickets?There_____betwelve.•(2015全国I卷)•A.shouldB.would•C.willD.shall2.—Hi,Tom.AnyideawhereJaneis?—She________intheclassroom.Isawhertherejustnow.(2014重庆卷)A.shallbeB.shouldhavebeenC.mustbeD.mighthavebeen3You________buyagift,butyoucanifyouwantto.(2015湖南卷)A.mustB.mustn’tC.havetoD.don’thaveto4.Mark_______havehurried.Afterdrivingattopspeed,hearrivedhalfanhourearly.(2016天津卷)A.needn’tB.wouldn’tC.mustn’tD.couldn’t5.You________parkhere!It’sanemergencyexit.(紧急出口)(2015重庆卷)A.wouldn’tB.needn’tC.couldn’tD.mustn’t1.I_______________(得接受)yoursuggestion.2.You_________________(你不能来这儿)withoutpermission.3.You_________________(应当去照顾)yoursister.4.Ithinkyou_________________(应当去看)thedoctor.汉译英havetoacceptmustn’tcomehereshouldtakecareofoughttogotosee