初中情态动词用法小结

TPleasefinishthefollowingexersices1.You____togoandseethedoctorrightnow.(2006湖南)A.mustB.shouldC.haveD.Will2.____Iaskyourname,please?A.WillB.ShallC.MayD.Must3.“CanyousingthesonginEnglish?”“No,I_____.”A.maynotB.mustn’tC.needn’tD.can’t4.You_____doitevenifyoudon’twantto.A.can’tB.mustn’tC.havetoD.needn’t5.It’safinedaytoday.You_____takearaincoatwithyou.A.mustn’tB.don’tneedC.needn’tD.can’t6.Thetraffic_____stopwhenthelightsareredinthestreet.A.can’tB.don’thavetoC.mustn’tD.Must7.–MustIreturnthebookthismorning?-No,you_____.Butyou______returnitbeforesupper.A.needn’t;mustB.mustn’t;canC.mustn’t;mayD.can’t;needCCDCCDA初中情态动词用法小结1.We_____能usethecomputernow,butwe______不能twomonthago.表达“能力”。2.You_____能gonow.She______不能stayhere.表示“许可”3._____能youhelpmewithmyEnlish?_____能Ihavesomewater?有礼帽地提出“请求”。（用于疑问句）Couldyoutellme___________?A.WheredoessheliveB.WhereshelivesC.WheredidsheliveD.WhereshelivedWouldyoutellme___________?4.He_____不可能bethemanager,forIsawhimgotoCanadayesterday.谈论“可能性”用否定形式can此处为一般时BBcan’tWeshall_____能finishtheworknextweek.Ihaven't_____能findanyjobs.beableto可取代can，要注意的是：beableto可以表达更多的时态。Nooneisabletodoit.(=Noonecandoit.)注意1.You______可以gohomenow.表示“允许”HesaidthatI______可以drinksomebeer.2.______可以IwatchTVthisevening?---______可以Iuseyoupen?---Yes,you______.\No,you______.No,you______.请求“许可”（用于疑问句）注意否定回答3.Ifyouarenotcarefulinthestreet,acar______hityou.A.canB.mayC.wouldD.must谈论“可能性”Heisn’tintheschool.Ithinkhe______beill.(2006广东)A.canB.shallC.mightmay=might=could表示“可能”为一般时态，只用肯定形式。They______可能leavethehospital.maymaymightMayMaymaycan’tmustn’tBC1.Everybody_______必须obeytherules.I_______必须gonow.Thiswork_______必须befinishedassoonaspossible.2.You______不准lendthebooktoothers.表示“必要性”3.Children______playontheroadorinthestreet.Itisdangerous.A.maynotB.mustn’tC.couldn’tD.needn’tmustn’t表示“（说话人）禁止……，不准……”；用来代替maynot表示“不许可”。4.Eventhetopstudentsinourclasscan’tworkoutthisproblem,soit____beverydifficult.(2005上海)A.mayB.mustC.canD.need进行“肯定的推断”可能性较大译为“一定”mustmustmustmustmustn’tBB5.Itwasdark.We_______必须gohome.Hermotherisill.soshe_______必须stayathomeandlookafterher.Thestudentsoftodaywill_______必须learnhowtousethecomputers.表示“客观需要”时，用haveto而不用must。另外haveto在句中可以有更多的时态。must只有一般和过去时6.--MustIreturnthebooktomorrow?--yes,_______.\No,__________.No,__________.needn’t=don’thaveto不必musthavetohastohavetoyoumustyouneedn’tyoudon’thaveto1．You_______doitagain．你不需要再做了。A.don’tneedB.needn't2.______需要hedothishomeworkfirst？他需要先做这些作业吗？3.He________需要tobuyanewbike.作为情态动词的“need”通常用于否定句和疑问句。“need”作为实义动词时，后接名词或动词不定式4.Katesaidshe________需要somehelp.---______需要hedothishomeworkfirst？---Yes，he_______\No,he______needBNeedneedsneededNeedmustneedn’t\don’thavetoshould应该、应当Theyshouldarriveatnoon.她们应该在中午到达Theclassroomshouldbecleanedup.情态动词一般无人称和数的变化,情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加“not”。Wecan'tcarrytheheavybox.我们搬不动那箱子。情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语,只能和其他动词原形构成谓语。Wecanbethereontimetomorrow.我们明天能按时去那儿。MayIhaveyourname?我能知道你的名字吗？记住了吗？巩固练习()1John___cometoseeustonight,butheisn'tverysureyet.A.mayB.canC.hastoD.must()2They___dowellintheexam.A.canbeabletoB.beabletoC.canabletoD.areableto()3-MayItakethisbookout?-No,you___.A.can'tB.maynotC.needn'tD.aren't()4You___goandseeadoctoratoncebecauseyou'regotafever.A.canB.mustC.dareD.would()5-CanyouspeakJapanese?-No,I____.A.mustn'tB.can'tC.needn'tD.maynotADABB()1-He___beintheclassroom,Ithink.-No,he___beintheclassroom.Isawhimgohomeaminuteago.A.can;maynotB.must;maynotC.may;can'tD.may;mustn't()2-ShallIgetonemorecakeforyou,Dad?-Thanks,butyou___,I'vehadenough.A.maynotB.mustnotC.can'tD.needn't()3Thepoormanneedsourhelp,___he?A.needB.needn'tC.doesD.doesn't()4You___worryaboutyourson.Hewillgetwellsoon.A.needn'tB.can'tC.mustn'tD.haveto()5---MustItakeabus?---No,you_____.Youcanwalkthere.A.mustnotB.maynotC.don’thavetoD.hadbetternottoCDDAC