人教版九年级英语全一册Unit8 第三课时 SectionA (Grammar Focus-4c)课件

Unit8ItmustbelongtoCarla.第三课时SectionA（GrammarFocus~4c）Shecouldbereadingbooks.PlayaguessinggameWhatisshedoing?Shecan’tbereadingbooks.Shemightbedoingherhomework.Shecouldbeplayingcomputergames.Warm-upWhereisit?Whatishedoing?LiLeiWhoseEnglishbookisthis?Whatkindofanimalisit?Whosevolleyballisthis?ItmustbeCarla’s.Shelovesvolleyball.Whosehairbandisthis?ItcouldbeMei’shairband.OritmightbelongtoLinda.Theybothhavelonghair.Whatdidyouseethatnight?I’mnotsure,butitcan’tbeadog.Itwasbigger.Ithinkitmightbeabearorawolf.GrammarFocusPresentation语法小知识——情态动词表推测句式情态动词用法意义例句肯定句must表示有把握的肯定推测

一定；

肯定Miller

must

be

very

tired

after

a

long

journey.could/may/might其肯定程度逐渐减弱，表示把握不大的推测可能Itmightrainthis

afternoon.否定句can't表示有把握的否定推测不可能Amycan'tbeatschool.It'sSundaytoday.疑问句can/could表示推测可能CanPeterstillbealiveaftersomanyyears?不同的形式表示不同的时态：结构形式用法例句情态动词+动词原形表示对现在的事情的推测

Somethingmustbewrongwith

mybike.情态动词+be+动词的-ing形式表示对正在发生的事情的推测

Mybrothermightbehavingbreakfastathome.情态动词+have+动词的过去分词表示对过去或已经完成的事情的推测Imusthaveputmykeyssomewhereinthebedroom.

1.A:Where’sJean？

B:I’mnotsure.She________(is/mightbe/mustbe)inthelaboratory.2.A:Everyoneisgoingtothepoolafterschool.B:Really?It________(mustbe/can’tbe/couldbe)hotoutdoors.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.mightbeChoosethebestwaytocompleteeachsentenceusingthewordsinbrackets.mustbecouldbecan’tbemustbe/couldbePractice4a1.A:Manypeoplearewearingcoats.B:Theweathermustbe_________.2.A:Sallyhasbeencoughingalot.B:Shemightbe_____________.3.A:Thisrestaurantisalwaysverycrowded.B:Thefood________________.4.A:WheneverItrytoreadthisbook,Ifeelsleepy.B:Itcan’t_____________.verycoldhavingacoldmustbedeliciousbeinterestingCompletetheseresponses.4bLookatthispictureofaroom.Howmuchcanyoutellaboutthepersonwholiveshere?Isitaboyoragirl?Whatarehis/herhobbies?Discussyourideaswithapartner.SampleDialogueA:Itcouldbeagirl’sroombecauseit’sverytidy.B:

Iguessso.Butitmightbeaboy’sroombecausetheclotheslooklikeboys’clothes.4c

辨析sleep,sleepy&asleep单词词性含义用法例句sleep名词睡眠不可数名词Justliedownandgetenoughsleep.一次睡眠；一段睡眠时间前可加aI’llgoupstairsandhaveasleep.动词睡觉；睡不及物动词Didyousleepwelllastnight?Languagepoints单词词性含义用法例句sleepy形容词困倦的；瞌睡的既能作定语，也能作表语Doyouknowthesleepygirl?I’mtoosleepy

tofinishmyreport.asleep形容词睡着的通常作表语；常和be或fall搭配使用IfIamasleeponthebus,pleasewakemeupwhenyougetoffthebus.1.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,can,could,might。★情态动词must,can,could,might后接动词原形，表示对现在情况的推测。2.用法：①“情态动词+动词原形”表示对现在或将来的情况进行推测。②“情态动词+be+v-ing形式”表示对正在进行的情况进行推测。③“情态动词+have+v-ed”表示对过去的情况进行推测。Summary1.—IsthisbookLinda's?—It_____behers.Sandy'snameisonthecover.A.can'tB.mustn'tC.needn'tD.must2.—IsthatwomaninthelabMsJones?

—No.It______beher.Shehasgonetothemuseum.A.can'tB.canC.mustn'tD.must3.Themagazine________Lucy's.Wecanseehernameonthecover.A.mustn'tbeB.can'tbeC.mustbeD.needn'tbeAACExercises单项选择4.You_____beverytiredwiththelongdrive.Let'sstoptohavearest.A.mustB.canC.shallD.need5.—Look,themanwelcomingusattheschoolgate______ourheadmaster.

—No,it______behim.H