英语人教新目标七年级上册初二英语-情态动词表推测

情态动词的特点CaiXukuncanplaybasketball.FanChengchengcanplaybasketball,too.Buttheycan’tsingsongswell.3.

有助动词的作用1.有词义，但不能单独作谓语，必须与动词原形连用2.没有人称和数的变化reviewcan①表能力：AllofyoucanlearnEnglishwell

byworkinghard.Thesupermancan’tflywithoutredpants.②表请求，许可：-CanIeatfoodintheclassroom？-No,youcan’t.Butyoucaneatitinthetoilet.①表能力（can的过去式）：FangZhongyongcouldcomposepoemsattheageof5.②表委婉的请求-Couldyoupleaseopenthewindow?

Itistoohot.-Ofcourseyoucan./Sure.couldreview①表请求，许可：-MayIsmokehere?-Yes,youcan.-No,youmustn’t.

(语气较强烈，表禁止)②might：may的过去式，语气更委婉③表祝愿：

Mayyousuccessintheexam!reviewmay/might①主观看法，表示必须，应该（责任，义务）：

Youmustcareforyourparentsmore.②否定：

Youmustn’tsmokehere.（表示禁止）③疑问：

-MustIarriveherebythetimeof6？-Yes,youmust.-No,youneedn’t/don’thaveto.（“不用”）reviewmust①shall常用于第一人称的征求意见：

ShallIhaveadatewithyouafterschool?②should表示劝告，建议：Youshouldlistentomecarefully.reviewshall/should①表示意愿，打算：

Iwillneverdothatagain.②委婉询问：

Wouldyoulikesomebread?

reviewwill/would情态动词表推测

must（一定）Youmust

be

joking!It’salready12:30.Youmust

be

hungrynow.

may/might（可能）Shemight

knowtheanswer.Tommay

comewithustonight,butheisn’tsureyet.肯定情态动词表推测

can’t（一定不）Shecan’ttelltheanswertothequestionbecauseitisveryhard.Hesleepsinclasseveryday,

sohecan’t

getgoodgrade.

may/mightnot（可能不）Shemight

not

knowtheanswer.Tommay

notcomewithustonight,butheisn’tsureyet.否定

can/could（…可能吗）Canitbetruethatitisgoingtoraintomorrow？Couldhefinishhishomework？

might和

could表示语气比较委婉或者可能性相对较小。tips情态动词表推测疑问ExerciseThetelephoneisringing,butnobodyanswersit,

he______be

at

home.2.You______betiredafterplayingsportsforalongtimewithoutarest.3.-Wherewillyougoforholiday?-Ihaven’tdecidedyet,we____gotoQingdao.can’tmustmaybesupposedtodo主语是人时，表示劝告，责任，义务，意为“应该”、“被期望”，相当于“should”。Youaresupposedtoworkhardandgetintoagoodhighschool.（你们应该努力学习然后进入一个好的高中。）Everyoneissupposedtoloveandmakecontributionstoourcountry.（每个人都应该爱戴自己的国家并且做出贡献。）知识拓展对过去情况的推测，表虚拟，意为本应该做而没有做。should+havedoneHe

should

hav