初中英语九年级上册Unit8SectionA4.ppt

Unit8ItmustbelongtoCarla,SectionAGrammarFocus-4c,九年级（全）,Itcouldbe_.Italsomightbe_.,Canyouguesswhatitis?,threebirds,abeautifulface,Canyouguesswhatitis?Itcouldbe_.Italsomightbe_.,awhitevase,twofaces,Itcouldbe_.Italsomightbe_.,Canyouguesswhatitis?,adog,twogirls,CouldAbebiggerthanB?Infact,AandBmustbe_.,Whichoneisbigger,AorB?,A,B,thesamesize,No.,GrammarFocus,grammar,Use“must”toshowthatyouthinksomethingisprobablytrue.Use“might”or“could”toshowthatyouthinksomethingispossiblytrue.Use“cant”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cant，意为“不可能”。如：1.Icantfindmykeys.Imusthaveleftthemathome.2.-IssheMary?-Thatcantbeher.Shesinhospital.,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.,1.Ididnthearthephone.I_asleep.A.mustbeB.musthavebeenC.shouldbeD.shouldhavebeen2.Mary_beinParis.Isawherintownonlyafewminutesago.A.mustntB.shouldntC.cantD.maynot,Choosethebestanswer.,3.Peter_comewithustonight,butheisntverysureyet.A.mustB.mayC.canD.will4.Ithoughtyou_likesomethingtoread,soIhavebroughtyousomebooks.A.mayB.mightC.couldD.must,5.Whossinginginthenextroom?It_beher.ShehasgonetoNewYork.A.cantB.mustC.shouldntD.can【解析】考查情态动词表推测。表示否定推测时，用cant，意为“一定不”。must表示推测时，意为“一定”，用于肯定句；根据答语“她已经去了纽约”可知是否定推测，故选A。,6.WhoseT-shirtisthis?It_beJohns.Its_smallforhim.A.cant;muchtooB.cant;toomuchC.mustnt;muchtooD.mustnt;toomuch【解析】情态动词的用法。根据句意“它不可能是约翰的，对他来说太小了。”故排除C、D，toomuch为“太多”的意思，muchtoo为“太”。故选A。,7.Whereareyougoingthismonth?We_gotoXiamen,butwerenotsure.A.needntB.mustC.mightD.mustnt【解析】neednt(不必)表建议；must(一定)表猜测的可能性很大；might(可能，也许)表不是很肯定的猜测。mustnt(不允许)表命令。句意：-这个月你们将去哪？-我们或许去厦门，但还不确定。,C,8.-Haveyoudecidedwheretogoforyoursummervacation?-Notyet.We_gotoQingdao.Itsagoodplaceforvacation.A.mayB.needC.must【解析】句意：-你已经决定到哪里过暑假了吗？-还没有呢，我们也许去青岛，那是个度假的好地方。情态动词表示推测时，may表“可能”，must表“一定”，cant表“不可能”。,A,9.MustIwatertheflowersnow,mum?No,you_.You_doitlater.A.mustnt;mustB.mustnt;mayC.neednt;mayD.neednt;must10._Iknowbywhattimeyouwanttheprojecttobedone?Bythedayaftertomorrow._youfinishitontime?A.May;CanB.Must;NeedC.Could;MustD.Need;Would,C,A,11.Whossinginginthegarden?It_beMr.Brown.Healwayspracticessingingatthistime.A.mustB.cantC.need12.I_followyou.Wouldyoupleaserepeatit?A.cantB.mustntC.needntD.shouldnt,A,A,1.A:WheresJean?B:Imnotsure.She_(is/mightbe/mustbe)inthelaboratory.2.A:Everyoneisgoingtothepoolafterschool.B:Really?It_(mustbe/cantbe/couldbe)hotoutdoors.,Choosethebestwaytocompleteeachsentenceusingthewordsinthebrackets.,4a,mightbe,mustbe,3.A:Thatsthephone.B:Hmm.Iwonderwhoit_(mustbe/couldbe/shouldbe).4.A:IwonderiftheseareJimsglasses.B:They_(cantbe/mightbe/couldbe)his.Hedoesntwearglasses.5.A:Ihearwaterrunninginthebathroom.B:It_(couldbe/mustbe/cantbe)Carla.Shewasthinkingoftakingashower.,couldbe,cantbe,mustbe,Completetheseresponses,1.A:Manypeoplearewearingcoats.B:Theweathermustbe_.2.A:Sallyhasbeencoughingalot.B:Shemightbe_.A:Thisrestaurantisalwayscrowed.B:Thefood_.A:WheneverItrytoreadthisbook,Ifeelsleepy.B:Itcant_.,4b,beinteresting,cold,ill,mustbedelicious,Lookatthispictureofaroom.Howmuchcanyoutellaboutthepersonwholiveshere?Isitaboyoragirl?Whatarehis/herhobbies?Discussyourideaswithapartner.,A:Itcouldbeagirlsroombecauseitsverytidy.B:Iguessso.Butitmightbeaboysroombecausetheclotheslooklikeboysclothes.,4c,Exercises,1.Excuseme.IsthistherightwaytotheSummerPalace?Sorry,Iamnotsure.It_be.A.mightB.willC.mustD.can,Choosethecorrectanswer.,2.IsntthatAnnshusbandoverthere?No,it_behimImsurehedoesntwearglasses.A.cantB.mustnotC.wontD.maynot,3.You_betiredyouveonlybeenworkingforanhour.A.mustnotB.wontC.cantD.maynot,4.IsJohncomingbytrain?Heshould,buthe_not.Helikesdrivinghiscar.A.mustB.canC.needD.may,根据句意,从方框中选择正确的情态动词填空,每项限用一次。1.That_beLucy.ShehasgonetoBeijingonbusiness.2.There_besomethingwrongwithmywatch.Itisntworkingnow.,cant,must,should,must,cant,maynot,mustnt,3.He_knowtheanswer,either.Letsaskthatpoliceman.4.You_swimintheriver.Itsdangerous.5.You_lookafteryourparentswhentheybecomeolder.Itsyourduty.,maynot,mustnt,should,用must,might,could或cant填空Thetoycar_beJims.Heistheonlykidatthepicnic.2.ThisMp5_beLindas.Iknowshehasone.3.Themobilephone_belongtoLucyorLily.