SectionAGrammarFocus-4c ObjectivesTolearnthewordsandexpressions:laboratory,outdoors,coat,sleepy…Tolearntomakeinferencesbyusingmust,could,might,can’t. Translatethephrases.outsidethewindowhavefunnext-doorneighboratfirstrunawayfeeluneasyhavenoideahavefun(in)doingsth.在窗外玩得高兴隔壁邻居最初；首先逃跑心神不安一点不知道；没办法做某事很愉快Review Itcouldbe__________.Italsomightbe______________.Canyouguesswhatitis?Threebirdsabeautifulface Canyouguesswhatitis?Itcouldbe__________.Italsomightbe_________.awhitevasetwofaces Itcouldbe______.Italsomightbe________.Canyouguesswhatitis?adogtwogirls CouldAbebiggerthanB?Infact,AandBmustbe___________________.ABthesamesizeNo.Whichoneisbigger,AorB? Whosevolleyballisthis?Whosehairbandisthis?ItcouldbeMei’shairband.OritmightbelongtoLinda.Theybothhavelonghair.Whatdidyouseethatnight?I’mnotsure,butitcan’tbeadog.Itwasbigger.Ithinkitmightbeabearorawolf.GrammarFocusItmustbeCarla’s.Shelovesvolleyball. Whosevolleyballisthis?ItmustbeCarla’s.Shelovesvolleyball.Whosehairbandisthis?ItcouldbeMei’shairband.OritmightbelongtoLinda.Theybothhavelonghair.Whatdidyouseethatnight?I’mnotsure,butitcan’tbeadog.Itwasbigger.Ithinkitmightbeabearorawolf. Whosevolleyballisthis?It________Carla’s.Shelovesvolleyball.mustbe Whosehairbandisthis?It________Mei’shairband.Orit________mightbelongtoLinda.Theybothhavelonghair.couldbemight Whatdidyouseethatnight?I’mnotsure,butit________adog.Itwasbigger.Ithinkit_________abearorawolf.can’tbemightbe Use“must”toshowthatyouthinksomethingisprobablytrue.Use“might”or“could”toshowthatyouthinksomethingispossiblytrue.Use“can’t”toshowthatyouarealmostsuresomethingisnottrue.Grammar —Whosevolleyballisthis?—ItmustbeCarla’s.Shelovesvolleyball.—Whosebookisthis?—ItmustbeMary’s.J.K.Rowlingisherfavoritewriter.—Whosehairbandisthis?—ItcouldbeMei’s.Readthesentencesbelow,payingattentiontothecoloredparts. —Whosenotebookisthis?—ItmustbeMing’s.Ithashernameonit.—WhoseFrenchbookisthis?—ItcouldbeCarol’s.ShestudiesFrench.—Whoseguitaristhis?—ItmightbelongtoAlice.Sheplaystheguitar.—WhoseT-shirtisthis?—Itcan’tbeJohn’s.Itistoosmallforhim.Readmoresentences. 表示推测的情态动词在英语中，表示对某件事物的确定程度，即表示推测的时候，我们通常会用到以下情态动词，must,might,could,may,can’t,couldn’t. can’tcouldmight100%probablytrue20%-80%possiblytrue0almostnottruemust Learntomakeinference程度肯定句否定句疑问句must√may√√might/could√√√√can’t/can√√ can和could的区别和用法1.can表示体力和脑力方面的能力，或根据客观条件能做某种动作的“能力”。例如：►CanyouspeakEnglish?►Canyoumakeacake?can用在否定句和疑问句中时有时表示说话人的“猜测”或“不肯定”。►Canthenewsbetrue?(在日常会话中，can可代替may表示“允许”，may比较正式。) 2.could是can的过去式，表示过去有过的能力和可能性，还有怀疑和不肯定的意思(在否定和疑问句中)。►Shecouldn’tskatewhenshewasfiveyearsold.（能力）►Atthattimewethoughtthestorycouldbetrue.（可能性）could用来提问，是有礼貌的请求Could….Please?语气较为婉转。►CouldIspeaktoMr.Smith,please? might和may的区别和用法:1.may的用法:a.表示“允许”或“请求”。►MayIcomein?在使用这一用法时需注意：may表示“允许”的否定形式是mustnot，
4.4角的比较北师大版数学七年级上册有一天学生小明和小华各带了一把折扇(如图所示),下面是他们的一段对话:小明:我的折扇张开大一些,所以我的折扇的角也大一些.小华:我的折扇长一些,所以我的折扇的角也大一些.导入新知聪明的同学们,你们有办法帮
意思是“不应该”，“不许可”。►—MayItakethisbookoutofthereading-room?—No,youmustn’t．b.表示说话人的猜测，认为某一事情“或许”或“可能”发生。 ►Hemayknowtheanswer．c.may用在感叹句中可表示祝愿、愿望。►Mayyousucceed．(祝你成功。)►Mayyouhaveapleasantjourney．(一路平安。)2.might的用法:a.might可以代替may，表示现在时间的动作，但语气较为婉转客气或更加不肯定。►MightItakeasuggestion？b.might用来表示现在时间时，还可表示“规劝”。►YoumightpaymoreattentiontospokenEnglish． must与haveto的区别haveto比较强调客观需要，must着重说明主观看法。另外haveto能用于更多时态，比较下面的句子：►Wehadtobethereat10:00.有时两者都可以用，意思差别不大。►Wemusthavetoleavenow.must在表示说话人对事物的推测时候要注意它，比may肯定得多，相当于汉语的“一定”或“是”。(只有在肯定句中能这样用。) ►Thismustbeyourroom．在回答由must引起的问题时,如果是否定的答复，不能用mustn’t,而需要用needn’t或don’thaveto,因为mustn’t是“一定不要”的意思。 1.—Whosebookisthis?—ItmustbeMary’s.ItmustbelongtoMary.3.ThehairbandmightbelongtoLinda.mightbeLinda’s.2.—WhoseFrenchbookisthis?—ItcouldbeAli’s.ShestudiesFrench.4.TheT-shirtcan’tbeJohn’s.It’smuchtoosmallforhim.(肯定；一定)(可能)(可能)(不可能) 1.—AreyougoingtoBeijingbyplane?—It’sfast,butexpensive.SoIamnotsure.I____takeatrain.A.shouldB.mayC.mustD.will2.—IsJohncomingbytrain?—Heshould,buthe____not.Helikesdrivinghiscar．A.must B.can C.may D.need 1.A:Where’sJean?B:I’mnotsure.She_________(is/mightbe/mustbe)inthelaboratory.2.A:Everyoneisgoingtothepoolafterschool.B:Really?It_________(mustbe/can’tbe/couldbe)hotoutdoors.mightbemustbe4aChoosethebestwaytocompleteeachsentenceusingthewordsinthebrackets. 3.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.couldbecan’tbemustbe 1.A:Manypeoplearewearingcoats.B:Theweathermustbe________.2.A:Sallyhasbeencoughingalot.B:Shemightbe_______.A:Thisrestaurantisalwayscrowed.B:Thefood_____________.4.A:WheneverItrytoreadthisbook,Ifeelsleepy.B:Itcan’t________________.beinterestingcoldillmustbedelicious4bCompletethereresponses. 4cLookatthispictureofaroom.Howmuchcanyoutellaboutthepersonwholiveshere?Isitaboyoragirl?Whatarehis/herhobbies?Discussyourideaswithapartner.A:Itcouldbeagirl’sroombecauseit’sverytidy.B:Iguessso.Butitmightbeaboy’sroombecausetheclotheslooklikeboys’clothes. Lookatthetworoomsbelow.Makeguessesabouttheownerofeachroom. 1.—Who’ssinginginthenextroom?—It____beher.ShehasgonetoNewYork.A.can’tB.mustC.shouldn’tD.canExercises2.—WhoseT-shirtisthis?—It______beJohn’s.It’s______smallforhim.A.can’t;muchtooB.can’t;toomuchC.mustn’t;muchtooD.mustn’t;toomuchAA 3.—Whereareyougoingthismonth?—We______gotoXiamen,butwe’renotsure.A.needn’tB.mustC.mightD.mustn’tC4.—Haveyoudecidedwheretogoforyoursummervacation?—Notyet.We_______gotoQingdao.It’sagoodplaceforvacation.A.mayB.needC.mustA 5.—MustIwatertheflowersnow,mum?—No,you______.You_____doitlater.A.mustn’t;mustB.mustn’t;mayC.needn’t;mayD.needn’t;must6.—______Iknowbywhattimeyouwanttheprojecttobedone?—Bythedayaftertomorrow.______youfinishitontime?A.May;CanB.Must;NeedC.Could;MustD.Need;WouldCA 7.—Who’ssinginginthegarden?—It______beMr.Brown.Healwayspracticessingingatthistime.A.mustB.can’tC.need8.I____followyou.Wouldyoupleaserepeatit?A.can’tB.mustn’tC.needn’tD.shouldn’tAA —Thedriver______behurtbadlyintheaccident.—That’strue.Let’ssendhimtothehospitalassoonaspossible.A.needB.can’tC.mustD.maynot中考链接“送他去医院”可以推断司机肯定伤得严重。C —Ican’tfindmyphoneanywhere.—You_____havelostitwhileshopping.mayB.canC.shouldD.would“哪都找不到”，只能推断可能购物时丢了。A HomeworkFinishofftheexercise.PreviewsectionB1a-1d.
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