Unit8ItmustbelongtoCarlalaboratoryoutdoorscoatsleepyn.实验室adv.在户外；在野外n.外套；上衣adj.困倦的；瞌睡的WordsReviewItcouldbe__________.Italsomightbe______________.Canyouguesswhatitis?threebirdsabeautifulfaceCanyouguesswhatitis?Itcouldbe_________________.Italsomightbe______________.awhitevasetwofacesItcouldbe______.Italsomightbe___________.Canyouguesswhatitis?adogtwogirlsCouldAbebiggerthanB?Infact,AandBmustbe________________.Whichoneisbigger,AorB?ABthesamesizeNo.Whosevolleyballisthis?ItmustbeCarla’s.Shelovesvolleyball.Whosehairbandisthis?ItcouldbeMei’shairband.OritmightbelongtoLinda.Theybothhavelonghair.Whatdidyouseethatnight?I’mnotsure,butitcan’tbeadog.Itwasbigger.Ithinkitmightbeabearorawolf.GrammarFocusGrammarFocusUse“must”toshowthatyouthinksomethingisprobablytrue.Use“might”or“could”toshowthatyouthinksomethingispossiblytrue.Use“can’t”toshowthatyouarealmostsuresomethingisnottrue.Use“must”toshowthatyouthinksomethingisprobablytrue.Use“might”or“could”toshowthatyouthinksomethingispossiblytrue.Use“can’t”toshowthatyouarealmostsuresomethingisnottrue.表示推测的情态动词有must,may,could,might,can。must表示说话人对事物的推测可能性的程度非常大，意为“一定；准是”；表示有把握的否定推测时用can’t，意为“不可能”。如：1.Ican’tfindmykeys.Imusthaveleftthemathome.2.--IssheMary?--Thatcan’tbeher.She’sinhospital.can表示“可能”，常用于否定句、疑问句中。could为can的过去式，表示推测的语气较can弱。如：--Canthemantherebeourmathteacher?--Hemaybe,butIamnotsure.may意为“也许”。might为may的过去式，表示说话人对现在或将来不太确定的可能性的推测。如：LiMingmightgethereintime,butIamnotsure.意思推测程度must一定，肯定100%的可能性maymight/could有可能，也许20%---80%的可能性can’t不可能，不会可能性几乎为零1.Ididn’thearthephone.I___asleep.A.mustbeB.musthavebeenC.shouldbeD.shouldhavebeen2.Mary____beinParis.Isawherintownonlyafewminutesago.A.mustn’tB.shouldn’tC.can’tD.maynotChoosethebestanswer.3.Peter____comewithustonight,butheisn’tverysureyet.A.mustB.mayC.canD.wil...
