人教版九年级上册英语-Unit-8-Grammar-Focus-教学课件

Unit8SectionAGrammarFocusUnit8SectionAReviewTranslatethephrases.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ReviewTranslatethephrases.ou---Whosevolleyballisthis?---Itmust

beCarla’s.Shelovesvolleyball.---Whosebookisthis?---ItmustbeMary’s.J.K.Rowlingisherfavoritewriter.---Whosehairbandisthis?---ItcouldbeMei’s.Readthesentencesbelow,payingattentiontothecoloredparts.---Whosevolleyballisthis?R---Whosenotebookisthis?---Itmust

beMing’s.Ithashernameonit.---WhoseFrenchbookisthis?---ItcouldbeCarol’s.ShestudiesFrench.---Whoseguitaristhis?---ItmightbelongtoAlice.Sheplaystheguitar.---WhoseT-shirtisthis?---Itcan’tbeJohn’s.Itistoosmallforhim.Readmoresentences.---Whosenotebookisthis?Reamustcan’tcouldmight100%probablytrue20%-80%possiblytrue0almostnottruemustcan’tcould100%20%-80%0

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。表示推测的情态动词可能性：must>can/could>may/mightcannot(can’t)couldnot(couldn’t)maynotmightnot情态动词表推测可能性：must>can/could一、mustmust表示可能性最大的肯定推测，意思是“一定、准是”。只能用于肯定句。如果要表示“一定不”，应该用can't。如果询问可能性时，应该用can。Hemustknowtheanswers.

他肯定知道答案。Hecan'tknowtheanswers.

他肯定不知道答案Canheknowtheanswer?

他知道答案吗？一、must二、can/couldcan表示推测“可能性”时，一般用于否定句或疑问句。can在疑问句中意思是“会，可能”。Hecan’tpickherschoolbagup.

他不可能拿了她的书包。二、can/couldcould表示某事有可能发生或可能是事实。Don’teatit.Itcouldgobad.

不要吃它，可能坏了。Theplanecouldbeputoffbythestorm.

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、委婉的请求语气。Couldyoupleasehelpmewithmyhomework?

你能帮我完成我的家庭作业吗？could表示某事有可能发生或可能是事实。

三、may/mightmay,might表示推测“可能性”时，意思是“可能”，“也许”。might不表示过去时态，语气更委婉，可能性更小。may,might表推测时，可用于否定句，但不用于疑问句。Hemay/mightnotbeathome,butI'mnotsure.

他可能不在家，不过我也不确定。三、may/might

情态动词表示推测可以分为以下几种情况:★情态动词+do

此结构表示对现在或将来情况的推测和判断

—Doyouknowwheresheisnow?—IthinkshemighttravelinBeijing.

★情态动词+bedoing

此结构表示对现在或将来正在进行的情况的推测和判断。

Atthismoment,myfathercan’tbeworkingintheoffice.情态动词表示推测可以分为以下几种情况:★情态动词+havedone

此结构表示对过去情况的推测和判断。

Theroadiswet.Itmusthaverainedlastnight.

★情态动词+havebeendoing

此结构表示对过去正在进行的情况的推测和判断。

Yourmothermusthavebeenlookingforyouatthatmoment.★情态动词+havedone

此结构表示对过去情根据句意,从方框中选择正确的情态动词填空,每项限用一次。

should,must,can’t,maynot,mustn’t1.That______beLucy.Shehasgoneto

Beijingonbusiness.2.There_________besomethingwrong

withmywatch.Itisn’tworkingnow.can’tmust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。3.He________knowtheanswer,either.Let’saskthatpoliceman.4.You_______swimintheriver.It’sdangerous.5.You________lookafteryourparentswhentheybecomeolder.It’syourduty.maynotmustn’tshould3.He________knowtheanswer用must,might,could或can’t填空Thetoycar_______beJim’s.Heistheonlykidatthepicnic.2.ThisMp5_____________beLinda’s.Iknowshehasone.3.Themobilephone____________belongtoLucyorLily.Theybothhavemobilephones.4.Theman_______beMrSmith.HehasgonetoShanghaiandhe’llbebackinthreedays.mustcould/mightcould/mightcan’t用must,might,could或can’t填空m4aChoosethebestwaytocompleteeachsentenceusingthewordsinbrackets.1.A:Where’sJean?B:I’mnotsure.She__________(is/mightbe/mustbe)inthelaboratory.mightben.

实验室4aChoosethebestwaytocompl2.A:Everyoneisgoingtothepoolafterschool.B:Really?It________(mustbe/can’tbe/couldbe)hotoutdoors.mustbe表示“位移”的动词用现在进行时态表将来，例如：go去,come来,leave离开,arrive到达,return回来,fly飞。adv.

在户外，在野外e.g.Iamcoming.=Iwillcome.HeisleavingforParis.=HewillleaveforParis.2.A:Everyoneisgoingtothe3.A:That’sthephone.B:Hmm.Iwonder

whoit__________(mustbe/couldbe/shouldbe).couldbe4.A:Iwonder

ifthereareJim’sglasses.B:They_________(can’tbe/mightbe/couldbe)his.Hedoesn’twearglasses.can’tbewonderv.“想知道”(wanttoknow)Nowonder+句子，“难怪.....”e.g.Nowonderyouareangry.难怪你会生气。3.A:That’sthephone.couldb5.A:Ihearwaterrunninginthebathroom.B:It_________________(couldbe/mustbe/can’tbe)Carla.Shewasthinkingoftakingashower.couldbe/mustbe5.A:IhearwaterrunninginA:Manypeoplearewearingcoats.B:Theweathermustbe______________________________.2.A:Sallyhasbeencoughingalot.B:Shemightbe_______________________.3.A:Thisrestaurantisalwayscrowded.B:Thefood_______________________.4.A:WheneverItrytoreadthisbook,Ifeelsleepy.B:Itcan’t__________________.4bCompletetheseresponses.gettingcolder/coldoutsidehavingasorethroat/illmustbedeliciousbethatboringA:Manypeoplearewearingcoa4cLookatthispictureofaroom.Howmuchcanyoutellaboutthepersonwholiveshere?Isitaboyoragirl?Whatarehis/herhobbies?Discussyourideaswithapartner.4cLookatthispictureofarA:Itcouldbeagirl’sroombecauseit’sverytidy.B:Iguessso.Butit