2023年中考英语复习语法专题情态动词课件

情态动词主讲老师：Demi老师Grammar课堂之1.什么是情态动词？实义动词：比如want、like、go等01动词的分类，分为以下四大类：04情态动词：can，should，must，may等03助动词：do、does、did；will、shall；have、has等02系动词：feel、taste、sound、look、smell（5个感官动词）等；2.情态动词知多少？cancouldmaymustneedshould情态动词的几大特点：cancouldmaymustneedshould情态动词+动词原形情态动词否定后面直接+not情态动词变疑问句，直接提前情态动词无三单、无将来注意：haveto例外，用于第三人称单数时变成hasto练一练--

peopletalkwithfriendsbyQQtwentyyearsago?--No,buttodaymostofus

dothat.A.Can;couldB.Could:canC.Could;couldD.Could;can'tB3.情态动词基本用法cancouldVS能力beabletoVScan的过去式情态动词=can/could一般现在时一般过去式一般将来时1.表能力

练一练1.They

dowellintheexam.A.canbeabletoB.beabletoC.canabletoD.areableto[题目解析]D选项；can与beableto不能连用A与C错误；DcancouldVSmayVS情态动词2.表请求mightVS情态动词肯定回答否定回答cancouldmaymightYes,youcan.Ofcourse.No,youcan'tNo,youmustn't(禁止)——Can/Could/MayIleavenow?——Yes,youcan/Ofcourse.——No,youcan't/No,youmustn't委婉程度：can——could——may——might练一练CChavetomustVS“不得不/必须”客观条件限制(被迫)don'thaveto“不必”=needn't“必须”主观条件限制(主动)mustn't“禁止”Youhavetofinishitin2minutes.Imuststudyhard.Youdon'thavetoworry.Youmustn'tparkhere.情态动词3.表必要练一练3.I'mfeelingmuchbetternow,soyou

callhedoctor.A.can'tB.mustn'tC.don'thavetoD.haven'ttoC练一练-MayIplayoutsidenow,mum?--No,you

.You

doyourhomework.A.maynot;canB.can't;mayC.maynot;mayD.can't;mustDshouldhadbetterVSshould“应该”shouldn't“不应该”常用于纠正别人,提出或征询建议+动词原形hadbetterdosth“最好（做某事）”hadbetternotdosth“最好不（做某事）”Youshouldfinishyourhomework.Youhadbetteraskforhelp.Youshouldn'tdothat.Youhadbetternottellhereverything.情态动词4.表建议练一练5.We

belateforschool.A.havetoB.don'thavetoC.hadbetternotD.hadbetternottoC练习DDC练一练5.We

belateforschool.A.havetoB.don'thavetoC.hadbetternotD.hadbetternottoC4.情态动词问与答情态动词知识点：can“能力”could为can的过去式can问can答，could问could答IcansingthisEnglishsong.——CanyouspeakEnglish?——Yes,Ican.——No,Ican't.情态动词提问与回答✮✮✮can能力情态动词肯定回答否定回答cancouldmay知识点：can“请求”委婉程度：can——could——may——might情态动词——Can/Could/MayIleavenow?——Yes,youcan/Ofcourse.——No,youcan't/No,youmustn'tYes,youcan.Ofcourse.No,youcan'tNo,youmustn't(禁止)mustn't天理不容语气强烈

情态动词提问与回答✮✮✮can请求练一练--CouldIparkmycarhere?--

.A.Yes,youcanB.No,youcouldn'tC.Yes,youcouldD.No,Ican'tA易错选项：B、C练一练--

Itakesomephotosinthehill?--No,you

.A.Can,needn'tB.Must,mustn'tC.Could,won't.D.May,mustn't.D情态动词肯定回答否定回答must情态动词——Must

Ifinishmyhomeworknow?——是的，你必须现在完成。——Yes,youmust.——不，你不必现在完成。——No,youneedn't/No,youdon'thavetoYes,youmustNo,youneedn'tNo,youdon'thaveto情态动词提问与回答✮✮✮must练一练—MustIgotoalawschoolandbealawyerlikeyou,Dad?—No,you

.Youarefreetomakeyourowndecision.A.can’t B.mustn’tC.shouldn’t D.needn’tD[题目解析D选项；must引导的一般疑问句做否定回答时用needn't。练习DDC5.情态动词表推测Shecan'tbeDemi.She

maybeDemi.ShemustbeDemi..can't100%否定推测"不可能"情态动词情态动词表推测✮✮✮maybe不确定推测"可能"must100%确定推测"一定"情态动词序号原形过去式普通含义推测含义1maymight可能，也许可能，也许2cancould能力；请求/3can'tcouldn't不能，不可以不可能（100%确定）4willwould将要；一种意愿/5must/必须一定（100%确定）6mustn't/禁止7need/需要8needn't/不需要，不必9should/应该情态动词情态动词表推测✮✮✮6mustn't/禁止练一练She

knowthetruth,butI'mnotsure.A.maybeaybeC.mayD.mustCA.maybe?aybe?

C.may?true--truthmaybemaybeVS副词，句首或者句末Maybesheisateacher.Sheisateacher,maybe(不常用)Shemaybeateacher.Shemaygotoshoptobuysomething.mayVS情态动词+be,句中情态动词，句中情态动词练一练1.--

wegettothepartylate?--No,We

belatetodayA.Can;mustn'tB.Can;needn'tC.Must;needn'tD.Must;mustn'tA练一练2.--Isthatmanyourfather?--No,it

behim.HehasgonetoHongKongonbusiness.A:mustn'tB.maynotC.couldn'tD.can'tD[题目解析]：此题考查can't的100%否定推测"不可能"出差练一练3.--MustIhandinmyreadingreporttoday,Ms.Smith?--No,you_____handinthereporttoday.Youcandoittomorrow.A.mustn'tB.don'tneedC.don'thavetoC易错选项B:

本题目中must作为情态动词提问，回答需用情态动词，而B选项中don'tneed是使实义动词need的否定形式练一练4.Ithinkdogsareourfriends.They

lookafterourhome.A.canB.mightC.mustD.needA[题目解析]：此题考查can表示一种能力“能，能够”练一练5.--Who'sthatgirlswimminginthepool?IsitMaria?--It____beMaria.Sheissleepinginthebedroomnow.'tC[题目解析]：此题考查can't的100%否定推测"不可能"小结情态动词2实义动词、系动词、助动词、情态动词1.动词分类2.四大特点+动词原形否定后面直接+not变疑问句，直接提前无人称和数的变化3.提问与回答can表能力委婉程度：can——could——may——might肯定回答：Yes,youcan./Ofcourse.否定回答：No,youcan't/No,youmustn't(禁止)could为can的过去式；can问can答，could问could答肯定：Yes,youmust否定：No,youneedn't/don'thaveto

can表请求情态动词must提问与回答4.表推测can't100%否定推测"不可能"maybe不确定推测"可能"must100%确定推测"一定"5.maybe&may&maybe的区别情态动词1cancouldbeableto