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

Unit8ItmustbelongtoCarla.第三课时SectionA（GrammarFocus~4c）

Shecouldbereadingbooks.PlayaguessinggameWhatisshedoing?Shecan’tbereadingbooks.Shemightbedoingherhomework.Shecouldbeplayingcomputergames.Warm-up

Whereisit?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?verytired?after?a?longjourney.could/may/might其肯定程度逐渐减弱，表示把握不大的推测可能Itmightrainthisafternoon.否定句cant表示有把握的否定推测不可能Amycantbeatschool.ItsSundaytoday.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Somethingmustbewrongwithmybike.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/couldbePractice4a

1.A:Manypeoplearewearingcoats.B:Theweathermustbe_________.2.A:Sallyhasbeencoughingalot.B:Shem