Guess:Whoseping-pongbatisthis?Whoistheowner?mustcan’tcouldmight100%probablytrue20%-80%possiblytrue0almostnottrueIt_______beJiangWei’s.

It_______

belongtoJiangWei.(屬于)Becausesheneverplaysping-pong.can'tcan'tIt

_______beYangZhi's

It_______belongtoYangZhi.

Becausehelikesplayingping-pong.

could/might

could/mightIt_______beWuYuanwei's.It_______belongtoWuYuanwei.

Becauseithashisnameonit.mustmustbesb's=belongtosbWhoseEnglishbookisthis?TheEnglishbookismine.=Thebookbelongstome.Thebookmust（一定）belongtoNancybecausehernameisonthecover.=Thebookmust（一定）beNancy's.Thebasketballcan’t（不可能）beNancy’s.=Thebasketballcan’tbelongtoNancy.Itmight/could

（也許）beJim’s.=Itmight/couldbelongtoJim.Isthisyours?Whosebookisit?ItmustbeNancy's.Itmight/couldbe...Whosebookisit?Itmustbeagirl's.tidyandcleantakenotescarefullyWhosebookisit?Itmustbeaboy's.nottidyorcleanbadwritingWhosebookisit?Itmust

belongtoastudentwhoisn'tinterestedinEnglish.Itcouldbe______________.Itmightbe__________.Canyouguesswhatthepictureshows?awhitevasetwofacesCanyouguesswhatthepictureshows?Itcouldbe______________.Itmightbe__________.adogtwogirls

It

could

be

__________.

Italso

might

be

_______________.Canyouguesswhatitis?threebirdsabeautifulfaceCouldAbebiggerthanB?Infact,AandBmustbe___________________.Whichoneisbigger,AorB?ABthesamesizeNo.Wherearethey?Inapark./Inanopenair.Whathappened?Theymightbealittleworried,becausetheywanttofindtheownersofthesethings.Whatthingsareleftontheground?Fromlefttotheright:aCDabookaT-shirtatoytruck

amagazineaplatesomecupsacapasweater/coatavolleyballIsthevolleyballthegirl’s?Whosevolleyballisit?popmusicCDHarryPotter(J.KRowling’sbook)aboutrabbitscapcoat/sweaterT-shirttoytruckbookCDcupmagazine1bListenandmatcheachpersonwithathingandaperson.ownersPredictbeforelisteningA:Whosevolleyballisit?B:Itmustbeagirl’s.=Itmustbelongtoagirl.A:Whosevolleyballisit?B:Itmustbesb’s=Itmustbelongtosb.A:Whydoyouthinkso?B:…1bListenandmatcheachpersonwithathingandaperson.Howdidtheyfindouttheowner?Accordingtotheirhobbiesandpersonalities.Whyweresomanythingsleftontheground?Takecareofyourthingswhereveryougo.A:WhoseCDisthis?B:ItmustbeGrace’s./ItmustbelongtoGrace.Becauseshealwayslistenstopopmusic.Tonylikesplayingcomputergames.Saralikesgoingtothemovies.LiMinglikessportscollection.Bob’sfavoritefoodishamburgers.Lilylikesgreenverymuch.PairworkA:Whose…isthis?B:It…because…MakeinferencesGivereasonsWhatdoyouusuallyhaveinyourschoolbag?hairbandT-shirttennisballsbookmagazinehairbandtennisballsWhatdoyouknowabouttheowner?Theownermustbe…mustcan'tcouldmightmustsure:must,can’tnotsure:could,mightFillintheblanksandread.

Bob:Hey,look!_______________doyouthinkthisis?Anna:Idon’tknow.Look,here’saschoolT-shirt.Bob:Wellthen,theperson______gotoourschool.Oh!Hereisahairband,sotheperson_______aboy.Anna:It________Mei’shairband.Shehaslonghair.Whoseschoolbagmustcan’tbecouldbeBob:Orthehairband________________Linda.Shewasatthepicnic,wasn’tshe?Anna:Yes,shewas.Butthentheschoolbag_________________Rita.She’salwaysforgettingthings.

Bob:Oh,look!Tennisballs.Anna:Thenit________Linda’sschoolbag.Shehaslonghairandshe’sonthetennisteam.

Bob:You’reright!mightbelongtobelongtocouldmustbeMakeconversationsusingtheinformationin2aand2b.2cA:Look!There’saschoolbaghere.B:What’sinside?A:There’saT-shirt,…

情態(tài)動詞must,might,could,can’t

后接動詞原形,可以表示對現(xiàn)在的情況的

.Itcan’t

()…Itmight/could()…Itmust()…+besb’sSummary:Itmust/might/could

推測beTony’s（是…的）belongtoTony.（屬于…）不可能

可能一定belongto

sb.及時小結才能鞏固所學知識