初中英语情态动词的基本用法讲解

初中英语情态动词的基本用法讲解1.can1）表示能力，能够，会Twoeyescanseemorethanone.两只眼比一只眼看得清。Icanswim我会游泳2）表示可能JimwenttoBeijing,sohecan’tbeathome.Hecan’thaveenoughmoneyforanewcar.他不可能有足够的钱买新车。3）表示允许。可以CanIhavealookatyournewpen?我可以看一看你的新钢笔吗？回答：Yes,ofcourse/Yesyoucan.No,youcan’t4）比较委婉客气地提出问题或陈述看法。Canyoulendmeahand?帮我一把好吗？2.Could1.can的过去式，能，会I______swimwhenIwasthreeyearsold.2.情态动词，--可以比can客气，委婉Couldyouhelpme?----Yes,ofcourse/sorry,Ican’t.Iambusy.3.May1）表允许，可以，比can,could更客气委婉Youmaytakewhateveryoulike.你喜欢什么就拿什么。HetoldmethatImightsmokeintheroom.他告诉我可以在房间里抽烟。May(Might)Iaskforaphotoofyourbaby?我可以要一张你宝宝的照片吗？在回答以may引起的问句时，多避免用这个词，而用其它方式，如Yes,please./Certainly./Pleasedon’t./You’dbetternot./No,youmustn’t.等，以免显得太严峻或不客气。2）表可能（事实上）。可以指过去时间，也可以指现在时间，但语气更加不肯定。Hemaybeathome.他可能在家。Shemaynotknowaboutit.她可能不知道这件事。Theymightbehavingameeting,butI’mnotsure.他们有可能在开会，不过我不肯定。3.must1）表示义务。意为“必须”（主观意志）。Mustn’t不准Wemustdoeverythingstepbystep.我们一切都必须循序渐进地做。Youmustn’ttalktoherlikethat.你不可能那样对她说话。--Mustwehandinourexercise—booksnow?我们现在就要交练习本吗？--No,youneedn’t./No,youdon’thaveto.不必。（这种情况下，一般不用mustn’t）2）表示揣测。意为“想必、准是、一定”等，只用于肯定句。Hemustbeill.Helookssopale.他准是病了。他的脸色苍白。She’swearingadiamondnecklace.Shemusthavealotofmoney.她戴着钻石项链，一定很有钱。1.-Mum，mayIwatchTVnow？-Sure，butyou________helpmewithmyEnglish.A.canB.mayC.mustD.could2.-________Idownloadthearticleagain？-No，youneedn't.A.ShallB.WillC.MustD.Can3.-Canyougoskatingwithusthisafternoon？-Sorry，Ican't.I________takecareofmylittlesisterathome.A.canB.mayC.wouldD.haveto4.-MustIhandinmyexercisebooktoday？-No，you________.A.can'tB.needn'tC.mustn'tD.won't5.-MayIhaveawordwithyou？-No，you________.I'mbusytoday.A.needn'tB.wouldn'tC.don'thavetoD.can't6.-________IhaveyourEnglishname，please？-Yes，Helen.H-E-L-E-N.A.MustB.MayC.WillD.Need7.-Whoistheboyoverthere？IsitJohn？-No，it________behim.Johnismuchtaller.A.mustn'tB.maynotC.can'tD.needn't8.-CanyouplayFrisbee，Jay？-Yes，I________.It'seasy.A.mustB.canC.needD.may9.-Youmustcomebackeverymonth.-Yes，I________.A.willB.mustC.shouldD.can10.She________knowtheanswer，butI'mnotsure.A.maybeB.maybeC.mayD.must11.-Mustwecleantheroomrightnow？-No，you____.You_____cleanitafterlunch.A.needn't；mayB.needn't;mustC.Mustn't；canD.mustn't；may12.John________cometoseeustonight，butheisn'tverysureyet.A.mayB.canC.hastoD.must13.Children________playwithfire.A.mustn'tB.can'tC.shouldn'tD.needn't14.-________Icomein，MrGreen？-Yes,comein，please.A.MustB.NeedC.WillD.May15.-MustIfinishtheworktoday？-No，you________.You________finishittomorrow.A.mustn't；mayB.can't；canC.needn't；mayD.needn't；must1()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.maynot2()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()3Eventhetopstudentsinourclasscan'tworkoutthisproblem,soit___beverydifficult.A.mayB.mustC.canD.need()4Heisn'tatschool.Ithinkhe___beill.A.canB.shallC.mustD.hasto()5___Itakethisone?A.MayB.WillC.AreD.Do3()1Thechildren___playfootballontheroad.A.can'tB.canC.mustn'tD.must()2You___belateforschoolagainnexttime.A.mustn'tB.needn'tC.don'thavetoD.don'tneedto()3-MustIdomyhomeworkatonce?-No,you___.A.needn'tB.mustn'tC.can'tD.maynot4()1Hisarmisallright.He___goandseethedoctor.A.hasnottoB.don'thavetoC.haven'ttoD.doesn'thaveto()2Hehadtogiveuptheplan,___he?A.didB.didn'tC.doesD.doesn't()3Theyhadtowalkhere,___they?A.mustn'tB.didC.didn'tD.hadn't5()1Hehadbetterstayhere,___he?A.didn'tB.don'tC.hadn'tD.isn't()2You'dbetter___latenexttime.A.nottobeB.notbeC.won'tbeD.don'tbe()3You'dbetter___yourhair___onceamonth.A.had;cutB.had;cuttedC.have;cutD.have;cutted()4You___askthatmanoverthere.Maybeheknowstheway.A.hadbetternottoB.hadnotbetterC.hadbetterD.hadbetternot6()1-ShallwegoandvisittheHistoryMuseumnextSunday?A.HereyouareB.Sorry,Ican'tC.Yes,pleaseD.Letmetry()2-Whydon'tyouaskMiketogowithus?-Thanks,___.A.IwillB.Iwon'tC.leanD.Imay()3-___Itakethenewspaperaway?-No,youmustn't.You____readitonlyhere.A.Must;canB.May;canC.Need;mustD.Must;must7()1Excuseme.___youpleasepassmethatcup?A.DoB.ShouldC.WouldD.Must()2___youliketohaveanothertry?A.CouldB.WillC.WouldD.Do()3-Wouldyouliketogoboatingwithus?-Yes,___.A.I'dlikeB.IwantC.I'dliketoD.Ido8()1You___worryaboutyourson.Hewillgetwellsoon.A.needn'tB.can'tC.mustn'tD.haveto()2Thepoormanneedsourhelp,___he?A.needB.needn'tC.doesD.doesn't()3-Mustwedoourhomeworkfirst?-No,you___.Youmayhavearestfirst.A.mustn'tB.needn'tC.maynotD.can't1.ADABB2.CDBCA3.CAA4.DBC5.ABCC6.CAB7.CCC8.ADB「答案与解析」1.C.这组对话的意思是：妈妈，我现在可以看电视吗？当然，但你必须帮我学英语。该题测试情态动词的用法。表示主观上看来必须要做的事，要用must.2.C.这组对话的意思是：我必须再次下载这篇文章吗？不必了。该题测试情态动词的用法。根据答语No，youneedn't就能确定要选C.3.D.这组对话的意思是：今天下午你能同我们一块去溜冰吗？抱歉，我不能去。我必须在家照看我小妹妹。该题测试情态动词的用法。表示客观上不得不做某事时，要用have