SectionAPeriodThreelaboratoryoutdoorscoatsleepyn.实验室adv.在户外;在野外n.外套;上衣adj.困倦的;瞌睡的WordsReviewTolearntousemust,might,couldandcan’tformakinginferencesItmustbeCarla’s.ItcouldbeMei’shairband.I’mnotsure,butitcan’tbeadog.动词的种类按词义和句中的作用,动词可以分为四类。①实义动词(及物动词和不及物动词)②系动词③助动词④情态动词Thatman______bemyEnglishteacher.HehasgonetoCanada.(2011湖南株洲)A.needn’tB.mustn’tC.can’t【考点点拨】考查情态动词辨析。needn’t意为“不必”;mustn’t表示“明令禁止”;can’t表示“不可能”。根据句意“那个男人不可能是我的英语老师。他去了加拿大。”故选C。考点例析情态动词具有一定的意义,但不能单独作谓语,其后需接动词原形一起构成句子的谓语。情态动词(除haveto以外)没有人称和数的变化。另外,情态动词可用来构成否定句、疑问句并进行简略回答。初中常见的情态动词有:can,may,must,need,haveto,could,should,oughtto等。考点一:考查表示“能力”的情态动词1.—________yourAustralianfriendeatwithchopsticks?—Yes,butshecan’tusethemwell.A.ShouldB.NeedC.CanD.Must2.Theworkistoohardforus.We_______finishitontime.A.can’tB.mustn’tC.shouldn’tD.needn’t3.—Couldyourfatherplaygolfwhenhewasyoung?—No,he________.Buthe________playtabletennis.A.couldn’t;couldB.needn’t;mightC.mustn’t;shouldD.shouldn’t;need【考点点拨】★情态动词can表示“能力”时,与beableto同义,其否定形式为can’t。can表示现在的能力,其过去式could表示过去的能力。考点二:考查表示“应该”的情态动词1.—________wetofinishourhomeworkbeforenoon?—Yes,you________.A.Need;canB.Have;doC.Ought;oughttoD.Should;must2.You________studyhardifyouwanttobeascientistinthefuture.A.mayB.shouldC.wouldD.could【考点点拨】★情态动词should和oughtto都可表示“应该”,但should侧重说话者主观的看法,而oughtto更侧重客观情况。★should的否定形式为shouldn’t,oughtto的否定形式为oughtn’tto或oughtnotto。考点三:考查表示“请求;许可”的情态动词及其回答1.—________Iborrowyourmath'sbook?—Sure.Hereyouare.A.NeedB.WillC.MayD.Must2.—________Itakesomephotosinthehall?—No,you________.Lookatthesign“Nophotos”!A.Can;needn’tB.Must;mustn’tC.Should;needn’tD.May;mustn’t3.—CouldIuseyourdictionaryforawhile?—Yes,ofcourseyou________.A.couldB.canC.willD.should【考点点拨】★情态动词may和can都可表示“请求;许可”。may比can正式,could在表示“请求;许可”时,既可表示过去,也可表示语气的委婉。★当“May/Can/CouldI…”表示“请求;许可”时,肯定回答常用“Yes,please.”/“Certainly.”等,否定回答常用“No,youcan’t/mustn’t.”等。考点四:考查表示“推测”的情态动词1.—IsawLilyinthesupermarketthismorning.—Oh,it________her.ShemovedtoAustraliathedaybeforeyesterday.A.canbeB.mustbeC.can’tbeD.mustn’tbe2.Afteralongwalk,thechildren________beverytirednow.A.willB.mustC.havetoD.can3.John________gowithustomorrow,butheisn’tsure.A.mustB.canC.needD.may【考点点拨】★may,can,must都可表“推测”,三者的可能性依次递增。★may和must表“推测”常用于肯定句中,can表“推测”常用于否定句和疑问句中。考点五:考查need,must和haveto的用法1.Jim,you________playwiththeknife.You________hurtyourself.A.won’t;can’tB.mustn’t;mayC.shouldn’t;mustD.can’t;shouldn’t2.—________Ihavetohandinmyhomeworknow,MrZhang?—Yes,youdo.A.DoB.CanC.MayD.Must3.—MustIgetupbeforesixo’clocktomorrowmorning,Dad?—No,you________.TomorrowisSaturday.Youmaygetupalittlelater.A.mustn’tB.can’tC.needn’tD.maynot4.It’stoolate.We________gohome,orwe’llbeblamed(责备).A.canB.mayC.mightD.haveto【考点点拨】★need...