英语中考复习之情态动词讲义

中考情态动词(一)动词分类助动词不同时态的助动词有:2.系动词系动词包含be动词，感官动词，表变化、结果的动词，如am/is/are,sound/look/taste/smell/feel,become/grow/go/get/turn,prove，stay/keep/remain,seem/appear3.实义动词又称行为动词，可以分为及物动词，不及物动词work,run,walk,listen.区别：及物动词+宾语，不及物动词后不能直接跟宾语4.情态动词1.can：①表能力，“能，会”IcanspeakEnglishWecantakethebusandthemetrotoschool.Wecanplantmoretrees.We(能拖地).②表允许，请求，could语气更委婉。Could还是can的过去式。CanIuseyourcomputer?—CouldIuseyourmobilephone?—Yes,youcan.Hereyouare.③用can't，表示“不可能”MrWangcan'tbeathome.Heisabroadnow.④表示惊异、不相信等态度“怎么，如何”(主要用于否定句和疑问句中)Eg:Howcouldhedosuchathing?--HowcouldIthankyouenough?--Don’tmentionit.Anyothermaninthatcasewouldhavedonethat.--Howcouldyoueatthatalone?Howcouldthemanremainsuchamystery?HowcouldIgetintouchwithhimwiththistrickyaddress?※Whycan’tIgototheparty?May①表示许可或征求对方的许可，“可以”的意思MayIuseyourcomputer?回答以may开头的疑问句有如下表达方式：—MayIsmokehere?我可以在这儿吸烟吗？—Yes,youmay/can./Yes,please./No,youcan't/maynot./No,you'dbetternot.②表推测(眉山)—Ican'tfindmyphoneanywhere.—Youmayhavelostitwhileshopping.3.Must:①表强制，义务Eg:Youmustfinishyourhomeworkbeforeyouplayfootball.②表推测“一定，必定”Eg:TheT-shirtmustbeTom’s--Helikeblack.③一般疑问句的否定答语：Eg:--MustIfinishmyhomeworknow?--No,sbneedn’t/don’thaveto.-Mustwereturnthebooktothelibrarytoday?-No,you_________.Youcan_________itfortwoweeks.A.mustn't;keep B.mustn't;lendC.needn't;keep D.needn't;borrow④mustn’t：“禁止，表示法律法规条文要求的”Eg:Wemustn’tplayontheroad.Wemustn’tcrosstheraodwhenitisredman.※Whatmustn’twedoontheroad?4.should①应该Eg:Weshouldusepaperbagsandglassbottles.Weshouldnotdrivesomuch.Weshouldnotplasticbags(使用太多的塑料袋，塑料瓶)Weshould(保护树木)②竟然MaryshouldlovesuchapersonasJack.练习：1.—___Itakemyumbrellawithme?—____bettertodoso.Theweatherischangeable.A.Must;You’dB.Shall;It’sC.Need;You’dD.Would;It’s2.Theythinktheprojectneedn’t__________again.A.discussingB.tobediscussedC.bediscussedD.discuss3.

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4.Mum,doyouthinkI______takepartintheChemistrycompetition?Whynot?IfIwereinyourshoes,Icertainlywould. A.might B.would C.should D.must5.—I’vetoldyoumanytimesyou_____putthescissorsthere.Thekidsmayplaywiththem. —Sorry,Iwon’tdoitagain. A.wouldn’t B.mustn’t C.couldn’t D.needn’t6.“AsaChinese,I__________betoohard-working,”WangYapingstressedafter returningfromspace. A.mustn’t B.shouldn’t C.needn’t D.can’t7.―Rememberwhatthedoctorsaid?You_____takemorethantwospoonsofmedicineatatime.―Iknowthat,Mum.Threeisharmful.A.mustn’tB.needn’tC.wouldn’tD.couldn’t8.—MrZhong,whyshouldwehavetowashhandssooftenaday?—Foryourhealth,you________betoocareful.A．needn’t B．shouldn’t C．mustn’t D．can’t9..—Thehazeissoseriousnow.Itissuretobeharmfultoourhealth.—Yes,Iwonderwhenwe______worryabouttheairwebreathe.A.can'tB.needn'tC.mustn'tD.shouldn't10.—Dad,comeandlook!It’sallwhiteoutside. —There________beaheavysnowlastnight. A.would B.need C.can