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2019-2020年高中英语Unit2Healthyeating情态动词语法学案新人教版必修3教学内容Learningaims:1知识与能力Tomastersomesentencepatterns2过程与方法TomsatertheusageofGrammar情态动词3情感态度与价值观Trytopayyourattentiontotheclass!Learningkeypoints:TomastersomesentencepatternsLearningdifficultpoints:TomastertheusageofGrammar情态动词【学案使用说明】在提前预习的前提下完成学习指导即时感悟【回顾复习】Checkthehomeworkhaveadictationofthelanguagepoints【自主合作探究】
1.havetohaveto表示客观需要去做的事情,意为“必须,不得不”e.g.Ihavetogetthestationearlytocatchthefirsttrain.Wemissedthebussowehadtowalkhome.haveto有多种时态常见的有:一般将来时Wewillhavetogatherattheschoolgateat7tomorrow.一般现在时Ihavetotakemoremoneywithmebecausemywifehassomuchtobuy.一般过去时Finallywehadtogiveupourideatoholdapicnicoutsideasitrainedforawholeafternoon.
2.dareneedNeedIdo…Yesyoumust.Noyouneedn’t. 情态动词实义动词dare否,疑,条darenotdo否疑don’tdaretodo don’tdaredo不用于肯定句肯daretodoneed否,疑needn’tdodon’tneedsthdon’tneedtodo肯musthavetooughttoshould 注意对need问句的回答:--NeedIfinishtheworktoday--Yes________________.No________________.No________________.needn’t对其它情态动词的回答:--ShallItellJohnaboutit--Noyou_______--Mustwedoitnow--Noyou__________.CouldIborrowyourdictionary委婉----Yes,youcan/may.Sure.Goahead.Pleaseyourself.MayItakethisseat第一人称疑问句Yesyoumay.Noyoumustn’t.
3.must+havedone表示对过去已经发生的行为进行推测,意为“想必/准是/一定作了某事”Itmusthaverainedlastnightfortheroadwasverymuddy.昨晚一定是下雨了,因为地上很泥泞Wemusthavelearned2000wordsbytheendoflastterm.到上学期为止我们一定学了有两千个单词
4.can/could+havedone表示对过去的行为的怀疑和不肯定,通常用在否定句和疑问句中Cantheyhavewonthebasketballmatch他们可能赢了篮球赛吗?Itcouldn’thavebeenMr.Green.HehasgonetoNewYork.那不可能是格林先生的,他已经去北京了
5.may/might+havedone表示对过去已发生行为的推测,意为“也许/或许已经…”一般只用于肯定句和否定句中,不用与疑问句might比may更委婉、含蓄和不肯定It’stoolate.Ithinkhemayhavegonetobed.太晚了,我想他可能已经睡觉了Hemay/mightnothavefinishedthework.他可能没有完成工作
6.could不用can+havedone在肯定句中表示“本来能够…而没能…”,具有婉转的批评和责备之意IcouldhavepassedmyexameasilybutImadetoomanystupidmistakes.我本来能够轻易通过考试,但我犯了太多不该犯的错误Youcouldhavereportedtomeearlier.你本该早点告诉我的
7.should/oughtto+havedone用于肯定句时,表示“本该做某事而实际上没做”,用于否定句时,则表示“不该做的事反而做了”Youshouldhavetoldhimaweekago.你本来应该在一周前告诉他的Yououghtnottohavetakenthemagazineoutofthereadingroom.他不该、把杂志带出阅览室的
8.might(不用may)+havedone表示“本来可能…”,但实际上没有发生的事另外,还可表示“本来应该或可以做某事”之意,含有轻微的责备语气Youmightnothavetoldher.你本可以不告诉他的(事实上你告诉他了)Youmighthavecomeearlier.你本可以早点来的(但没有这样)Sheneedn’thavegonetothestationyesterday.昨天她本不必到火车站去的.(昨天她去了)Youneedn’thaveboughtit.你本可不必买它的(你买了)【当堂达标】
1.Ithoughtyou_____likesomethingtoreadsoIhavebroughtyousomebooks.A.mayB.mightC.wouldD.must
2.WhereismypenI____it.A.mightloseB.wouldhavelostC.shouldhavelostD.musthavelost
3.Ididn’thearthephone.I___asleepA.mustbeB.musthavebeenC.shouldbeD.shouldhavebeen
4.---Therewerealreadyfivepeopleinthecarbuttheymanagedtotakemeaswell.----It____acomfortablejourneyA.can’tbeB.shouldn’tbeC.mustn’thavebeenD.couldn’thavebeen
5.It’snearlyseveno’clock.Jack___behereatanymoment.A.mustB.needC.shouldD.could【反思提升】
1.OhI’mnotfeelingwellinthestomach.I____somuchfriedchickenjustnow.A.shouldn’teatB.shouldn’thaveeatenC.mustn’teatD.mustn’thaveeaten
2.---Whyhasn’tJanearrivedyet---She____againinthemorningA.shouldn’thaveoversleptB.mayhaveturnedoffthealarmclockC.musthavenoonetocallherD.shouldhavesomeonetowakeherup
3.---Didyougotothemoviethedaybeforeyesterday----No.We___butwedecidednotto.A.shouldhavegoneB.couldgoC.shouldgoD.couldhavegone
4.Asitturnedouttobeasmallhousepartywe____soformally.needn’tdressB.didn’thavetodressupC.MightnothavedressedupD.needn’thavedressedup
5.I’mrathersurprisedyouhaven’treportedhimtoyourteacher.Inmyopinionyou___thisassoonasyoufoundouthewascheating.musthavedoneB.mighthavedoneC.shouldhavedoneD.couldhavedone【拓展延伸】
1.---What____itbe---It____beamailboxforitismoving.It___beacar.A.can;can’t;mustB.can;can;mustC.can;mustn’t;mustD.must;mustn’tcan
2.---Isn’tthatAnn’shusbandoverthere---No.it____behim---I’msurehedoesn’twearglasses.A.can’tB.mustnotC.wontDmaynot
3.---WhencanIcomeforthephotosIneedthemtomorrowafternoon.---They____bereadyby12:
00.A.canB.shouldC.mightD.need
4.---areyoucomingtoJeff’sparty---I’mnotsure.I___gototheconcertinstead.mustB.wouldC.shouldD.might本单元语法点仍是情态动词的使用。