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1、SectionAGrammarFocusTranslate the phrases.outsidethewindowhavefunnext-doorneighboratfirstrunawayfeeluneasyhavenoideahavefun(in)doingsth.在窗外在窗外玩得高玩得高兴隔壁邻居隔壁邻居最初;最初;首先首先逃跑逃跑心神不安心神不安一点不知道;一点不知道;没办法没办法做某事很愉快做某事很愉快-Whosevolleyballisthis?-ItmustbeCarlas.Shelovesvolleyball.-Whosebookisthis?-ItmustbeMarys.J
2、.K.Rowlingisherfavoritewriter.-Whosehairbandisthis?-ItcouldbeMeis.Readthesentencesbelow,payingattentiontothecoloredparts.-Whosenotebookisthis?-ItmustbeMings.Ithashernameonit.-WhoseFrenchbookisthis?-ItcouldbeCarols.ShestudiesFrench.-Whoseguitaristhis?-ItmightbelongtoAlice.Sheplaystheguitar.-WhoseT-sh
3、irtisthis?-ItcantbeJohns.Itistoosmallforhim.Readmoresentences.mustcantcould might100%probably true20%-80%possibly true0almost not true表示推测的情态动词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,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即表示推测的时候,我们通常会用到以下情态动词情态动词:must,might,could,may,cant,couldnt。可能性:可能性:mustcan/couldmay/mightcan
4、not(cant)couldnot(couldnt)maynotmightnot情态动词表推测情态动词表推测一、一、mustmust表示可能性最大的肯定推测,意思是表示可能性最大的肯定推测,意思是“一定、准是一定、准是”。只能用于肯定句。如果要。只能用于肯定句。如果要表示表示“一定不一定不”,应该用,应该用cant。如果询问可。如果询问可能性时,应该用能性时,应该用can。Hemustknowtheanswers.他肯定知道答案。他肯定知道答案。Hecantknowtheanswers.他肯定不知道答案他肯定不知道答案Canheknowtheanswer?他知道答案吗?他知道答案吗?二、二、c
5、an/couldcan表示推测表示推测“可能性可能性”时,一般用于否时,一般用于否定句或疑问句。定句或疑问句。can在疑问句中意思是在疑问句中意思是“会,会,可能可能”。Hecantpickherschoolbagup.他不可能拿了她的书包。他不可能拿了她的书包。could表示某事有可能发生或可能是事实。表示某事有可能发生或可能是事实。Donteatit.Itcouldgobad.不要吃它,可能坏了。不要吃它,可能坏了。Theplanecouldbeputoffbythestorm.这趟飞机可能会因为暴风雨而推迟。这趟飞机可能会因为暴风雨而推迟。could还可用于表示客气、礼貌、委婉的请还可用
6、于表示客气、礼貌、委婉的请求语气。求语气。Couldyoupleasehelpmewithmyhomework?你能帮我完成我的家庭作业吗?你能帮我完成我的家庭作业吗?三、三、may/mightmay,might表示推测表示推测“可能性可能性”时,意思时,意思是是“可能可能”,“也许也许”。might不表示过去不表示过去时态,语气更委婉,可能性更小。时态,语气更委婉,可能性更小。may,might表推测时,可用于否定句,但不用于表推测时,可用于否定句,但不用于疑问句。疑问句。Hemay/mightnotbeathome,butImnotsure.他可能不在家,不过我也不确定。他可能不在家,不过
7、我也不确定。情态动词表示推测可以分为以下几种情况情态动词表示推测可以分为以下几种情况:情态动词情态动词+do此结构表示对现在或将来情况的推测和判断此结构表示对现在或将来情况的推测和判断Doyouknowwheresheisnow?Ithinkshemight travelinBeijing.情态动词情态动词+bedoing此结构表示对现在或将来正在进行的情况的此结构表示对现在或将来正在进行的情况的推测和判断。推测和判断。Atthismoment,myfathercant be workingintheoffice.情态动词情态动词+havedone此结构表示对过去情况的推测和判断。此结构表示对
8、过去情况的推测和判断。Theroadiswet.Itmust have rainedlastnight.情态动词情态动词+havebeendoing此结构表示对过去正在进行的情况的推测此结构表示对过去正在进行的情况的推测和判断。和判断。Yourmothermust have been looking foryouatthatmoment.根据句意根据句意,从方框中选择正确的情态动词填从方框中选择正确的情态动词填空空,每项限用一次。每项限用一次。should,must,cant,maynot,mustnt1.That_beLucy.ShehasgonetoBeijingonbusiness.2.
9、There_besomethingwrongwithmywatch.Itisntworkingnow.cantmust3.He_knowtheanswer,either.Letsaskthatpoliceman.4.You_swimintheriver.Itsdangerous.5.You_lookafteryourparentswhentheybecomeolder.Itsyourduty.maynotmustntshould用用must,might,could或或cant填空填空1.The toy car _ be Jims. He is theonlykidatthepicnic.2.
10、This Mp5 _ be Lindas. Iknowshehasone.3.Themobilephone_belongtoLucy or Lily. They both have mobilephones.4.Theman_beMrSmith.Hehasgone to Shanghai and hell be back inthreedays.mustcould/mightcould/mightcant4aChoose the best way to complete each sentence using the words in brackets.1.A:WheresJean?B:Imn
11、otsure.She_(is/mightbe/mustbe)inthelaboratory.mightben.实验室实验室2.A:Everyoneisgoingtothepoolafterschool.B:Really?It_(mustbe/cantbe/couldbe)hotoutdoors.mustbe表示表示“位移位移”的动词用现在进行时态表将的动词用现在进行时态表将来,例如:来,例如:go去去,come来来,leave离开离开,arrive到达到达,return回来回来,fly飞。飞。adv.在户外,在在户外,在野外野外e.g.Iamcoming.=Iwillcome.Heisleav
12、ingforParis.=HewillleaveforParis.3.A:Thatsthephone.B:Hmm.Iwonderwhoit_(mustbe/couldbe/shouldbe).couldbe4.A:IwonderifthereareJimsglasses.B:They_(cantbe/mightbe/couldbe)his.Hedoesntwearglasses.cantbewonderv.“想知道想知道”(wanttoknow)Nowonder+句子,句子,“难怪难怪.”e.g.Nowonderyouareangry.难怪难怪你会生气。你会生气。5.A:Ihearwaterr
13、unninginthebathroom.B:It_(couldbe/mustbe/cantbe)Carla.Shewasthinkingoftakingashower.couldbe/mustbe1.A:Manypeoplearewearingcoats.B:Theweathermustbe_.2.A:Sallyhasbeencoughingalot.B:Shemightbe_.3.A:Thisrestaurantisalwayscrowded.B:Thefood_.4.A:WheneverItrytoreadthisbook,Ifeelsleepy.B:Itcant_.4b Complete
14、 these responses.gettingcolder/coldoutsidehavingasorethroat/illmustbedeliciousbethatboring4c Lookatthispictureofaroom.Howmuchcanyoutellaboutthepersonwholiveshere?Isitaboyoragirl?Whatarehis/herhobbies?Discussyourideaswithapartner.A:Itcouldbeagirlsroombecauseitsverytidy.B:Iguessso.Butitmightbeaboysroombecausetheclotheslooklikeboysclothes.Lookatthetworoomsbelow.Makeguessesabouttheownerofeachroom.A:Itcould/might/cantbe.because.B:Iguessso/Idontthinkso.Butitmight/could/mustbe.because.