Unit8SectionA（Grammar-Focus-4c）课件人教版英语九年级全册

Unit8ItmustbelongtoCarla.SectionA（GrammarFocus-4c）在语境中理解、识记并运用本课时词汇：laboratory,coat,sleepy…掌握情态动词must,could,might,can’t表示推测的不同用法，独立完成相关练习。3.能够根据相关信息，正确使用must,might,could,can’t等

词汇进行预测和推断。Watchandmakeinferences.Whatdoyouthinkthegirlmightbe,astudentoranofficeworker?Whydoyouthinksheisridingabikesofast?Doyouthinkshewillbelate?Let’smakesomeinferences.Watchandmakeinferences.Whosenotebookitmightbe?Isitaboyoragirl?Whatpersonalitymighttheownerhave?Let’smakesomeinferences.Fillintheblanks.1.—这是谁的排球?

—_______volleyballisthis?

—这一定是卡拉的。她热爱排球运动。

—It__________Carla’s.Shelovesvolleyball.Whosemustbe2.—这是谁的发带？

—Whose____________isthis?—它可能是梅的发带。或者可能属于琳达。她们两人都是长头发。

—It______beMei’shairband.Oritmight____________Linda.Theybothhavelonghair.couldhairbandbelongtoFillintheblanks.3.—那晚你看见了什么？

—__________youseethatnight?

—我不确定，但肯定不可能是狗。它更大。我想也许是一头熊或一匹狼。

—I’mnotsure,butit________adog.Itwasbigger.Ithinkit________abearorawolf.Whatdidcan’tbemightbe可能性:________>________>_________情态动词表推测可能性大小顺序maynot/mightnotcan/couldmay/might否定可能性:________>________

mustcannot(can’t)couldnot(couldn’t)可能性:>>maynot/mightnotcan/couldmay/might否定可能性:>mustcannot(can’t)couldnot(couldn’t)情态动词表推测可能性大小顺序

must表示可能性最大的肯定推测，意思是一定。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。e.g.1.He____________theanswers.

他肯定知道答案。2.He_____________theanswer.

他肯定不知道答案3.______he______theanswer？

他知道答案吗？mustknowcan’tknowCanknowmustmustn’t

在英语中不能用于表示推测，但是可以表示“禁止，不允许”之意。e.g.1.You________________footballinthestreet.It'stoodangerous.

你不可以在街上踢足球，太危险了。

2.You_________________here.

在这里你不许抽烟.mustn’tplaymustn’tsmokemustn’tcan/coulde.g.1.Don’teatit.It______gobad.不要吃它，可能坏了。2.Theplane____________putoffbythestorm.

这趟飞机可能会因为暴风雨而推迟。3.He____________theanswers.他肯定不知道答案。can/could用于表示某事有可能发生或可能是事实,意思是“会，可能”。can表示推测“可能性”时，一般用于否定句或疑问句。can’t表示否定推测，意思是一定不。could可用于表示客气、礼貌、委婉的请求语气。couldcouldbecan’tknowmay/mightmay/might表示推测“可能性”时，意思是可能。might不表示过去时态，语气更委婉，可能性更小。might表推测时，可用于否定句，但不用于疑问句。e.g.He______________________athome,butI’mnotsure.might/couldnotbe情态动词表推测推测时态1.must/could/might/can’tdosth.推测现在发生的动作。e.g.他一定有一辆小汽车。He____________acarnow.2.must/could/might/can’tbedoingsth.推测正在发生的动作。e.g.他们一定不在图书馆读书。They____________readinginthelibrary.

他一定在家做作业。He__________________hishomeworkathome.musthavecan’tbemustbedoing情态动词表推测推测时态3.must/could/might/can’thavedonesth.推测已经发生的动作。e.g.他可能已完成了工作。He__________________________thework.4.must/could/might/can’tbedonesth.表示被动语态的推测。e.g.我的书包不可能被偷。Myschoolbag_________________.could/mighthavefinishedcan’tbestolenChoosethebestwaytocompleteeachsentenceusingthewordsinbrackets.4a1.A:Where’sJean?B:I’mnotsure.She________(is/mightbe/mustbe)inthelaboratory.mightbe2.A:Everyoneisgoingtothepoolafterschool.B:Really?It_______(mustbe/can’tbe/couldbe)hotoutdoors.mustbe3.A:That’sthephone.B:Hmm.Iwonder

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

iftheseareJim’sglasses.B:They_______(can’tbe/mightbe/couldbe)his.Hedoesn’twearglasses.can’tbe5.A:Ihearwaterrunninginthebathroom.B:It________________(couldbe/mustbe/can’tbe)Carla.Shewasthinkingoftakingashower.couldbe/mustbeChoosethebestwaytocompleteeachsentenceusingthewordsinbrackets.Completetheseresponses.4b1.A:Manypeoplearewearingcoats.B:Theweathermustbe______________________________.2.A:Sallyhasbeencoughingalot.B:Shemightbe____________________________________.gettingcolder/coldoutsidehavingasorethroatCompletetheseresponses.3.A:Thisrestaurantisalwaysverycrowded.B:Thefood________________________________________.4.A:WheneverItrytoreadthisbook,Ifeelsleepy.B:Itcan’t__________________________________________.mustbedeliciousbethatinterestingLookatthispictureofaroom.Howmuchcanyoutellaboutthepersonwholiveshere?Isitaboyoragirl?Whatarehis/herhobbies?Discussyourideaswithapartner.4cA:Itcouldbeagirl’sroombecauseit’sverytidy.B:Iguessso.Butitmightbeaboy’sroombecausetheclotheslooklikeaboy’sclothes.Makeinferencesabouttheowneroftheroomandhis/herhobbies,youhavetotalkaboutthereasonswhyyouthinkso.Exercises1.—Who’ssinginginthenextroom?IsitMary?—No，it_____beher.ShehasgonetoNewYork.A.can’tB.mustC.shouldn’tD.can2.（宜昌中考）—Difficultiesalwaysgowithme！—Cheerup!

IfGodclosesadoorinfrontofyou,

there______beawindowopenedforyou.A.wouldB.mustC.couldD.canABExercises3.Lookattheboyplayingbasketballontheground.IsitGeorge？—It____behim.Hetoldmehewouldplayb