小学情态动词用法

动词种类实义动词系动词情态动词助动词jump,runbe,feelcan,must,may…do,does,did,be,have,has第一页第二页，共13页。1.---whendidyouruncle___inshanghai

---thedaybeforeyesterday

AarriveBgetCreach

2.Asweknow,somepeoplearegoodat________butbadatgiveback

AlendingBkeepingCborrowingDusing

3.Thesmallchildwasnotoldenoughto_________himself

AhaveBwearCdressDputon

5.MybrotherandIare_____TV.

AwatchBlookCreadDsee

6.IaskDannyto________memybook,buthebroughmehisbook

AtakeBfetchCcarryDmatchTryandtry第二页第三页，共13页。7.-theradio___________thattherewillbeanotherheavyraininGuangdong.

_Toobad.Ithasrainedforthewholeweek

AtellsBtalksCsaysDspeaks

8.Itisniceofyouto_________somuchtimeshowingmearoundyourschool

AspendBcostCpayDtakeTryandtry第三页第四页，共13页。一、情态动词can,couldmusthavetoshouldwill(would)may第四页第五页，共13页。二、特征1.有一定词义，但不能单独作谓语，必须和行为动词或系动词连用，构成谓语。2.无人称和数的变化（haveto例外：用于第三人称单数时用hasto）Hehastostayhere.3.后面接动词原形Sheshouldstayathome.第五页第六页，共13页。

第六页第七页，共13页。三、用法1.can,could(1)表示能力，“能，会”Canyouplaybasketball?(2)表示怀疑、猜测，常用于否定句和疑问句中Hecan’tbeinclassroom.（3）可以CanIhelpyou?第七页第八页，共13页。(4)could是can的过去式，可以表示过去的能力IcouldswimwhenIwassevenyearsold.(5)can开头的一般疑问句以can和can’t回答could开头的一般疑问句以could和couldn’t回答第八页第九页，共13页。2.must(1)“必须应该”(2)表推测“一定”(3)否定句中，mustn’t表示禁止，“不允许”Must开头的疑问句，肯定回答用must，否定回答用needn’t（=don’thaveto）“不需要，不必”第九页第十页，共13页。3.haveto“haveto+动词原形”：不得不做某事注意：haveto用于第三人称单数时用hasto第十页第十一页，共13页。1．MayIstopmycarhere?

No,you_____.A.can'tB.mustn'tC.needn'tD.don'thaveto2.Mustwecleanthehousenow?

No,you_______.A.needn'tB.maynotC.mustn'tD.can't4.You________returnthebooknow.Youcankeepitnextweekifyoulike.A.can'tB.mustn'tC.needn'tD.maynot5.Johnny,you_______playwiththeknife,you_______hurtyourself.A.won't...can'tB.mustn't...may

C.shouldn't,mustD.can't...shouldn't6.-Wouldyougooutforawalkwithme?-No,I______.