初中英语中考语法考点 专题九情态动词

专题九情态动词考点1

情态动词的基本用法词汇含义及用法示例can表示能力,“能,会”,其否定式是cannot＝can'tIcanplaytheguitar,butIcan'tplaytheviolin.表示允许,“可以”,CanI…？意为“我可以……吗？”较口语化CanIgohomenow？could是can的过去式,表示过去的能力Lucycouldswimattheageoffive.could也可表示较can更为委婉的语气Couldyouhelpme？词汇含义及用法示例may(might)表示“请求许可”,意思是“可以,可能”,其一般疑问句的否定回答为mustn't/can't,might是may的过去式,语气比may更委婉—MayIgooutandplayfootball?—No,youmustn't.should意为“应该”,表示按情理应该如何,也可以表示一种责任和义务Youshouldgotoseethedoctor.词汇含义及用法示例must表示义务、命令或要求,意思是“必须,应该”,否定形式为mustn't,意思是“不准，不允许”,表示警告Youmustbecarefulnexttime.Youmustn'ttakephotoshere.表示说话人的主观看法Imustgohomenow.must引导的一般疑问句,肯定回答时用must,haveto；否定回答时用needn't或don'thaveto—MustIfinishthehomeworktoday?—No，youneedn't/youdon'thaveto.词汇含义及用法示例havetohaveto表示客观需要,意为“不得不,必须”,有人称、时态和数的变化,后跟动词原形Hehadtostayathomebecauseoftheheavyrain.need作情态动词时意为“需要”,常用于疑问句和否定句中Heneedn'tcomehere.以need引导的疑问句,肯定回答用must,否定回答用needn't—NeedIgotheretomorrow?—Yes，youmust./No,youneedn't.作行为动词时,有人称和数的变化,后常跟不定式作宾语,只用于肯定句中Heneedstoseeadoctor.词汇含义及用法示例hadbetter意为“最好”,没有人称和数的变化,后跟动词原形You'dbetterhaveagoodrest.will(would)表示请求、建议等,would比will委婉客气Wouldyoupleasepassmethebook？表示意志、愿望和决心等Iwillneverdothatagain.Theyaskedifwewouldcometoseehim.【辨析】must与havetomust意为“必须”，表示说话人的主观意志和看法；haveto意为“不得不”，表示有客观原因所以不得已而为之。【典例剖析】(2020·新疆)Myclassmateisjumpingsofar!I________believemyeyes.A.shouldn't

B.needn'tC.mustn'tD.can't剖析：句意：我的同学跳得这么远。我________相信自己的眼睛。shouldn't不应该；can't不能；mustn't禁止；needn't不需要。根据句意“我的同学跳得这么远”可知应该是“我不能相信自己的眼睛”。故选D。考点2

情态动词表推测的用法1.表示肯定推测的情态动词词汇含义及用法示例may意为“也许”,语气一般Mr.Limaybeathome.might意为“或许”,语气最弱Shemighthavegonetothereadingroom.could意为“很可能”,语气强于mayThestorybookcouldbeLiPing's.Helikesreadingstories.must意为“必定，一定”,语气最强烈ThebookmustbeLucy's.Hernameisonthecover.can表可能性,时常用在疑问句中—Wherecanmypenbe?—Itmaybeinyourdesk.2.表示否定推测的情态动词(1)can't表示否定推测，语气强烈，意为“一定不；不可能”。如：Thatcan'tbeMissGao.ShehasgonetoShanghai.那不可能是高老师。她去上海了。(2)maynot也表示否定推测，语气不确定，意为“可能不是”。如：Itmaynotbemypen.这可能不是我的钢笔。【典例剖析】(2020·滨州)—Onmywaytothebookstore，IsawMaryhangingoutwithherfriends.—It________beher.ShehasgonetoBeijing.A.can't

B.mustn't

C.might

D.could剖析：句意：——在我去书店的路上，我看见玛丽和她的朋友们在一起。——________是她。她去北京了。can't不可能；mustn't禁止；might可能，表推测；could可能。分析语意可知，此处表示可能性，根据“ShehasgonetoBeijing.”可知，不可能是玛丽，表否定推测。故选A。单项选择(

)1.(2020·北京)—________yougivemeahand？Ican'tmovetheboxbymyself.—Noproblem.A.Could B.Should C.Must

D.Need(

)2.(2020·淮安)You________smokehere！Lookatthesign.Itsays“Nosmoking”.A.needn't B.mustn't C.can D.mayAB(

)3.(2020·武汉)—Idon'tcarewhatpeoplethink.—Well，you________.Someopinionsareworthweighing.A.might B.shouldC.could D.would(

)4.(2020·自贡改编)—Mustwewearschooluniformseverywhere?—No，we________.A.needn't B.mustn'tC.can't D.shouldn'tBA(

)5.(2020·武威)Youhaven'teatenallday.You________beveryhungry.A.couldn't B.can'tC.might D.must(

)6.(2020·黔南)Polluted

airandwater________killplants，animals，andevenpeople.A.can B.can'tC.should D.shouldn'tDA(

)7.(2020·毕节)The

airpollutionisveryseriousinourcity.Something________aboutitnow.A.cando B.mustdoC.wasdone D.mustbedone(

)8.(2020·铜仁)—Howdeliciousthemealis!DidKangkang'smothercookit?—It________beher.Thesedaysshehasbeeninapoorvillagetohelpthepeoplethere.A.can't B.won't C.mustn't D.needn'tDA(

)9.(2019·北京)—Lily，________youfinishtheletterintenminutes?—Yes，Ican.A.must B.should C.need D.can(

)10.(2019·孝感)—MayIjointheartclub，Dad?—Ifyouhaveinterest，you________.A.should B.can C.haveto D.must(

)11.(2019·兰州)Themagazine________Lucy's.Wecanseehernameonthecover.A.mustn'tbe B.can'tbeC.mustbe D.needn'tbeDBC(

)12.(2019·宜昌)—Alittlebirdenteredthroughtheopenwindowtojoinusfordinnerlastnight.—Wow，theunexpectedguest________welcomed.A.willbe