Unit8SectionA（Grammar-Focus-4c）課件人教版英語九年級全冊

Unit8ItmustbelongtoCarla.SectionA（GrammarFocus-4c）在語境中理解、識記并運用本課時詞匯：laboratory,coat,sleepy…掌握情態(tài)動詞must,could,might,can’t表示推測的不同用法，獨立完成相關(guān)練習(xí)。3.能夠根據(jù)相關(guān)信息，正確使用must,might,could,can’t等

詞匯進行預(yù)測和推斷。Watchandmakeinferences.Whatdoyouthinkthegirlmightbe,astudentoranofficeworker?Whydoyouthinksheisridingabikesofast?Doyouthinkshewillbelate?Let’smakesomeinferences.Watchandmakeinferences.Whosenotebookitmightbe?Isitaboyoragirl?Whatpersonalitymighttheownerhave?Let’smakesomeinferences.Fillintheblanks.1.—這是誰的排球?

—_______volleyballisthis?

—這一定是卡拉的。她熱愛排球運動。

—It__________Carla’s.Shelovesvolleyball.Whosemustbe2.—這是誰的發(fā)帶？

—Whose____________isthis?—它可能是梅的發(fā)帶?；蛘呖赡軐儆诹者_。她們兩人都是長頭發(fā)。

—It______beMei’shairband.Oritmight____________Linda.Theybothhavelonghair.couldhairbandbelongtoFillintheblanks.3.—那晚你看見了什么？

—__________youseethatnight?

—我不確定，但肯定不可能是狗。它更大。我想也許是一頭熊或一匹狼。

—I’mnotsure,butit________adog.Itwasbigger.Ithinkit________abearorawolf.Whatdidcan’tbemightbe可能性:________>________>_________情態(tài)動詞表推測可能性大小順序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)情態(tài)動詞表推測可能性大小順序

must表示可能性最大的肯定推測，意思是一定。只能用于肯定句。

如果要表示“一定不”，應(yīng)該用can’t。如果詢問可能性時，應(yīng)該用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？

他知道答案嗎？mustknowcan’tknowCanknowmustmustn’t

在英語中不能用于表示推測，但是可以表示“禁止，不允許”之意。e.g.1.You________________footballinthestreet.It'stoodangerous.

你不可以在街上踢足球，太危險了。

2.You_________________here.

在這里你不許抽煙.mustn’tplaymustn’tsmokemustn’tcan/coulde.g.1.Don’teatit.It______gobad.不要吃它，可能壞了。2.Theplane____________putoffbythestorm.

這趟飛機可能會因為暴風(fēng)雨而推遲。3.He____________theanswers.他肯定不知道答案。can/could用于表示某事有可能發(fā)生或可能是事實,意思是“會，可能”。can表示推測“可能性”時，一般用于否定句或疑問句。can’t表示否定推測，意思是一定不。could可用于表示客氣、禮貌、委婉的請求語氣。couldcouldbecan’tknowmay/mightmay/might表示推測“可能性”時，意思是可能。might不表示過去時態(tài)，語氣更委婉，可能性更小。might表推測時，可用于否定句，但不用于疑問句。e.g.He______________________athome,butI’mnotsure.might/couldnotbe情態(tài)動詞表推測推測時態(tài)1.must/could/might/can’tdosth.推測現(xiàn)在發(fā)生的動作。e.g.他一定有一輛小汽車。He____________acarnow.2.must/could/might/can’tbedoingsth.推測正在發(fā)生的動作。e.g.他們一定不在圖書館讀書。They____________readinginthelibrary.

他一定在家做作業(yè)。He__________________hishomeworkathome.musthavecan’tbemustbedoing情態(tài)動詞表推測推測時態(tài)3.must/could/might/can’thavedonesth.推測已經(jīng)發(fā)生的動作。e.g.他可能已完成了工作。He__________________________thework.4.must/could/might/can’tbedonesth.表示被動語態(tài)的推測。e.g.我的書包不可能被偷。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