Unit8ItmustbelongtoCarlaWhosevolleyballisthis?ItmustbeCarla’s.shelovesvolleyball.Whosehairbandisthis?ItcouldbeMei’shairband.OritmightbelongtoLinda.Theybothhavelonghair.Whatdidyouseethatnight?I’mnotsure,nutitcan’tbeadog.Itwasbigger.Ithinkitmightbeabearorawolf.GrammarFocusGrammarFocusItcouldbe__________.Italsomightbe______________.Canyouguesswhatitis?ThreebirdsabeautifulfaceCanyouguesswhatitis?Itcouldbe_________________.Italsomightbe______________.awhitevasetwofacesItcouldbe______.Italsomightbe___________.Canyouguesswhatitis?adogtwogirlsCouldAbebiggerthanB?Infact,AandBmustbe___________________.Whichoneisbigger,AorB?ABthesamesizeNo.Use“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.--Whosebookisthis?--ItmustbemustbeMary’s.ItmustbelongtomustbelongtoMary.3.ThehairbandmightbelongtomightbelongtoLinda.mightbemightbeLinda’s.2.--WhoseFrenchbookisthis?--ItcouldbecouldbeAli’s.ShestudiesFrench.4.TheT-shirtcan’tbecan’tbeJohn’s.It’smuchtoosmallforhim.(肯定;一定)(可能)(可能)(不可能)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.will4.Ithoughtyou____likesomethingtoread,soIhavebroughtyousomebooks.A.mayB.mightC.couldD.must1.-AreyougoingtoBeijingbyplane?-It’sfast,butexpensive.SoIamnotsure.I____takeatrain.A.shouldB.mayC.mustD.will2.-IsJohncomingbytrain?-Heshould,buthe____not.Helikesdrivinghiscar.A.mustB.canC.mayD.need感悟中考感悟中考3.-____Iswiminthatriver?-No,you__.It’sdangeroustoswiminit.A.Must,can’tB.Can,maynotC.May,mustn’t4.Thestudents____playbasketballafterschooleveryday.A.allowtoB.areallowedtoC.wereallowedto感悟中考感悟中考1.A:Where’sJean?B:I’mnotsure.She_________(is/mightbe/mustbe)inthelaboratory.2.A:Everyoneisgoingtothepoolafterschool.B:Really?It_________(mustbe/can’tbe/couldbe)hotoutdoors.Choosethebestwaytocompleteeachsentenceusingthewordsinthebrackets.4amightbemightbemustbemustbe3.A:That’sthephone.B:Hmm.Iwonderwhoit________(mustbe/couldbe/shouldbe).4.A:IwonderiftheseareJim’sglasses.B:They________(can’tbe/mightbe/couldbe)his.Hedoesn’twearglasses.5.A:Ihearwaterrunninginthebathroom.B:It_________(couldbe/mustbe/can’tbe)Carla.Shewasthinkingoftakingashower.couldbecouldbecan’tbecan’tbemustbemustbeLookatthispictureofaroom.Howmuchcanyoutellaboutthepersonwholiveshere?Isitaboyoragirl?Whatarehis/herhobbies?Discussyourideaswithapartner.A:Itcouldbeagirl’sroombecauseit’sverytidy.B:Iguessso.Butitmightbeaboy’sroombecausetheclotheslooklikeboys’clothes.A:Itcouldbeagirl’sroombecauseit’sverytidy.B:Iguessso.Butitmightbeaboy’sroombecausetheclotheslooklikeboys’clothes.4cCompletetheseresponses1.A:Manypeoplearewearingcoats.B:Theweathermustbe________.2.A:Sallyhasbeencoughingalot.B:Shemightbe_______.3.A:Thisrestaurantisalwayscrowed.B:Thefood_____________.4.A:WheneverItrytoreadthisbook,Ifeelsleepy.B:Itcan’t________________.4bbeinterestingbeinterestingcoldcoldillillmustbedeliciousmustbedeliciousHomework1.What’sthemoststrangethinghappenedonyou?2.Whatwouldyoudoifsomethingstrangehappened?