英语人教PEP版九年级（上册）Unit+8+section+A+Grammar+Focus+

Unit8ItmustbelongtoCarla(GrammarFocus)九年级全一册-Unit8情态动词must,may/might,could,can’t,can/could表推测的用法教学目标导入—WhereisTom?—He

inhisroom.Thelightinhisroomison.

A.mustn'tbe B.canbeC.can't

be D.mustbe在肯定句中一般用must表示一定、确定知识点归纳知识讲解

Youarenotallowedtoplaywithfireintheforest.It

killplants，animalsandevenpeople.

A.might

B.mightnot C.should

D.shouldnot在肯定句中一般用may/might表示可能知识点归纳知识讲解It_______(也许)getquitecouldhereatnight.CantheredsweaterbeTom's?—No,itcan't.Hecan'tstandred.在肯定句中一般用could表示也许、或许在疑问句中一般用can/could表示可能在否定句中一般用can’t表示不可能知识点归纳could知识讲解一定，肯定，准是知识讲解难点突破ItmustbeCarla's.Shelovesvolleyball.Whosevolleyballisthis?“Must”toshowthatyouthinksomethingisprobablytrue.知识讲解难点突破ItcouldbeMei'shairband.OritmightbelongtoLinda.Theybothhavelonghair.Whosehairbandisthis?“Could”or“might”toshowthatyouthinksomethingispossiblytrue.可能可能注意！might表推测不用于疑问句，而could可用于肯定句、否定句和疑问句。知识讲解难点突破I'mnotsure,butitcan'tbeadog.Itwasbigger.Ithinkitmightbeabearorawolf.Whatdidyouseethatnight?“Can't”toshowthatyouarealmostsuresomethingisnottrue.不可能—Whosetextbookisit?IsitJenny‘s?

—No,it

beJenny‘s.Look，Helen‘snameisonthecover.Ithinkit

beHelen‘s.

A.can't;must B.mustn't;mustC.can't;may D.mustn't;may

You

walkonthewethillpathbecauseyou

fallandhurtyourself.

A.must;mightnot B.mustn't;mightC.needn't;need D.must;must牛刀小试I

belate，sodon’twaitformetostartthemeeting.

A.mustn't

B.needn'tC.need

D.may—Wouldyoupleasetellmewhentostart?

—I’mnotsure.We

startateight.

A.must B.could C.might D.need—Mr.Wangisathisoffice.Thelightinhisofficeison.

—That

behim.HehasgonetoAustralia.

A.must B.might

C.could D.can’t牛刀小试课堂练习难点巩固Fillintheblankswithmust,could,might,can't

.1.She

livenearherebecauseshealwayswalkstowork.2.He

beplayingsocceroutside.Isawhimreadinginthelibraryjustnow.3.Peter

comewithustonight,butheisn'tsure.4.A:Ilostmyschoolbag.IrememberIstillhadmyschoolbagwithmeatthepark.B:So

itstillatthepark?mustcouldmight/couldcan't拓展难点巩固Pleasefinishtheseexercises.1.Hemust

(do)hishomeworknow.2.Hecould

(come)heretomorrow.3.Lucydidn'tanswerthephonelastnight.Hemust

(fall)asleep.bedoingcomehavefallen对将来或现在的推测：情态动词+do/bedoing对过去的推测：情态动词+havedone小结Summary1.“Must”toshowthatyouthinksomethingisprobablytrue.一定，肯定，准是2.“Could”or“might”toshowthatyouthinksomethingispossiblytrue.可能注意！might表推测不用于疑问句，而could可用于肯定句、否定句和疑问句。3.“Can't”toshowthatyouarealmostsuresomethingisnottrue.不可能对将来或现在的推测：情态动词+do/bedoing对过去的推测：情态动词+havedone(intheclassroom)A：Ifoundashcooluniformontheplayground.Doyouknowwhoseitis?B:It

beJack's,butI'mnotsure.(could/must)A:It

behis.Isawhimwearinghisownschooluniformjustnow.(mustn't/can/t)C:It

beTom's.Heislookingforiteverywhere.(must/might)

(ontheplayground)Tom:Oh,whereis