SectionAGrammarFocus—4cUnit8ItmustbelongtoCarla.ContentsLead-in1Grammar2Presentation3Exercises4Summary5Homework6Languagegoals語言能力學(xué)習(xí)能力思維品質(zhì)文化意識(shí)準(zhǔn)確判斷語境，在語言實(shí)踐中運(yùn)用情態(tài)動(dòng)詞做出正確推測。1.掌握常用詞匯及句型:

library、outdoor等;2.能根據(jù)不同的理由來判斷出不同情態(tài)動(dòng)詞的語氣。通過觀察討論歸納，總結(jié)情態(tài)動(dòng)詞表推測的用法，提高思維的邏輯性。1.通過觀察歸納，正確理解和運(yùn)用情態(tài)動(dòng)詞must、could、might、can’t。2.學(xué)會(huì)表推測的情態(tài)動(dòng)詞在實(shí)際生活中的運(yùn)用。1234

01Lead-inMikeistalkingwithhiswifeabouttheirtravelplans.Findoutmodalverbsforspeculation.Lead-inItmustbeveryexpensive.Thepeoplewhodoitmustbeveryfit.Thatmightbefun.Itmaybetoochallengingforus.Itcouldbedangerous.Itcan'tbethatdangeroustogoon

safari.Somanypeopledoit.Lookatthesesentences.情態(tài)動(dòng)詞表推測Lead-in情態(tài)動(dòng)詞must、can、could、may和might均可表示推測，可以對過去、現(xiàn)在或?qū)淼那闆r作出語氣強(qiáng)弱不同的推測。

02GrammarWhosevolleyballisthis?ItmustbeCarla’s.Shelovesvolleyball.Whosehairbandisthis?ItcouldbeMei’shairband.OritmightbelongtoLinda.Theybothhavelonghair.Whatdidyouseethatnight?I’mnotsure,butitcan’tbeadog.Itwasbigger.Ithinkitmightbeabearorawolf.Findoutmodalverbsforspeculation.GrammarFocusThelightintheteachers’officeisstillon.MissGao______beworking.must表推測用在肯定句中【注意】mustn’t“禁止,千萬不要”，不表推測。情態(tài)動(dòng)詞must表推測GrammarFocusYouhaveworkedallthisweek.You_______betired.Students________gotoswiminriversbythemselves.You________late.must1.must

意為“一定；肯定”，表示____________。mustmustn’tmustn’t肯定猜測______itraintomorrow?It’ssosunnyatthemoment.【拓展】could表推測時(shí)，可用于肯定句、否定句和疑問句。

它比can更委婉，更不確定。情態(tài)動(dòng)詞can’t表推測GrammarFocusShe______beatschool.It’sSundaytoday.Hecouldn’thaveunderstood.Wherecoulditbe?can’t2.can’t

意為“不可能；應(yīng)該不是”，表____________。Cancan表推測

用在否/疑句否定猜測Accordingtotheradio,itmay/might/rainthisevening.【注意】maynot/mightnot表示不太有把握的否定推測，

意為“可能不”。情態(tài)動(dòng)詞may等表推測GrammarFocusWillyoupleaseanswerthephone?Itmay/mightbeyourmom.Itmightnotbeabadideatogetacaralarmforyournewsportscar.Youknownewcarstendtoattractthieves.3.may、might表示“可能”，表示沒有把握的推測。might的可能性比may要小一些。Summarizethegrammarrules.GrammarFocus句式情態(tài)動(dòng)詞含義用法肯定句must一定表示有把握的肯定推測may/might/could也許；可能表示沒有把握的肯定推測否定句can’t/couldn’t不可能表示有把握的否定推測maynot/mightnot可能不表示不太有把握的肯定推測疑問句can/could可能表示推測注意語氣拓展GrammarFocus1.情態(tài)動(dòng)詞+do：對現(xiàn)在或?qū)砬闆r的推測。Hemustbeyouruncle.Don’tplaywiththeknife.Youcouldcutyourself.

IthinkLindamighttravelinBeijing.

GrammarFocus2.情態(tài)動(dòng)詞+be+動(dòng)詞-ing形式：對此時(shí)此刻正在進(jìn)行的情況進(jìn)行推測。注意時(shí)態(tài)There’salotofnoisefromnextdoor.Theymustbehavingaparty.Mr.Wangisnotinhisapartment.Hemightbeworkingatfactory.Atthismoment,myfathercan’tbeworkingintheoffice.拓展GrammarFocus3.情態(tài)動(dòng)詞+have+done:對過去的情況進(jìn)行推測。It’swetontheroad.Itmusthaverainedlastnight.Heisthebeststudentinourclass.Hecan’thavefailedinthelastweek’sexam.Tomdidn’tleavetillthreeo’clock.Hemay/mighthavemissedthetrain.拓展GrammarFocus4.“there+情態(tài)動(dòng)詞+be+主語+動(dòng)詞-ing形式”表示“可能/或許/一定……做……”。Theremustbesomebodyhelpingus,butwedon’tknowwhoheis.Itisnoisy,theremightbesomedogsbarking.拓展

03Presentation1.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.Choosethebestwaytocompleteeachsentenceusingthewordsinthebrackets.couldbecan’tbemustbemightbemustben.實(shí)驗(yàn)室adv.在戶外Presentation4a1.A:Manypeoplearewearingcoats.B:Theweathermustbe________________________.2.A:Sallyhasbeencoughingalot.B:Shemightbe______________________________.3.A:Thisrestaurantisalwaysverycrowded.B:Thefood_________________________________.4.A:WheneverItrytoreadthisbook,Ifeelsleepy.B:Itcan’t___________________________________.Completetheseresponses.Presentation4bn.外套adj.困倦的beinterestingcoldillmustbedeliciousLookatthispictureofaroom.Howmuchcanyoutellaboutthepersonwholiveshere?Isitaboyoragirl?Whatarehis/herhobbies?Discussyourideaswithapartner.Presentation4cA:Itcouldbeagirl’sroombecauseit’sverytidy.B:Iguessso.Butitmightbeaboy’sroombecausetheclotheslooklikeboys’clothes.Whereismyschoolbag?WhentheschoolwasoverlastFriday,everyonewenthomehappily.ButIcouldn’tgohomebecausemyschoolbagwasnowheretobefound.FreetalkWhereismyschoolbag?Who?Whocoulditbethattookmyschoolbagaway?CoulditbeJim?No,itcouldn’tbeJim,becauseJimwasplayingfootballontheplaygroundandhisschoolbagwasstillthere.FreetalkWhereismyschoolbag?Ithoughtthat...ItmustbeLindathattookmyschoolbagaway,becauseshelefttheclassroomhurriedlywithoutsayinggoodbyetome.FreetalkWhereismyschoolbag?Ithoughtthat...ItmightbeJohnwhotookmyschoolbagaway,becausehewasthemostcarelessstudentinmyclass.Weallthoughtso.FreetalkWhereismyschoolbag?Guesswhat?Idecidedtogohome.Justatthattime,Davidrushedtotheclassroomoutofbreath,withmyschoolbaginhishand,sayingthathetookitbymistake.Don'tbecareless!Freetalk04Exercises一、單項(xiàng)選擇。1.—He_______beintheclassroom.Ithink.—No,he_____beintheclassroom.Isawhimgohomeaminuteago.A.can;maynotB.must;maynotC.may;mustn’tD.may;can’t2.—Whosebookisthis?—It___________ourgeographyteacher’s.Yousee,hisnameisonit.

A.can‘tbeB.canbeC.mustn’tbeD.mustbe3.—Oh,it’sraininghard.—Becareful!Theroad______bewet.A.couldB.mustC.mightExercises4.—Wecanseesomewildanimalsintheforest,right?—It’shardtosay.There________beonlyafewleft.A.may B.must C.need D.could5.—Youdidwellinthehighjump,Tina.You________havepracticedalot.—Yeah.Itrainedhardatschoolfortwomonths.A.can B.could C.must D.might6.—WhereisBob?—I’mnotsure.He________beontheplayground.A.must B.can’t C.mightExercises二、完成句子。1.Tony一定非常高興見到你，你倆高中后就沒見過了。Tony________________overjoyedtoseeyou.Youtwohaven’tseeneachothersincehighschool.2.他工作一直很努力，他現(xiàn)在肯定正在書房工作。Healwaysworksveryhard,andhe______________________inthestudy.3.

——聽！房間里是凱特在彈鋼琴嗎？

——不，不可能是她。她和她父母去倫敦了?！?/p>

Listen!IsthatKateplayingthepianointheroom?—No,it_____________beher.ShehasgonetoLondonwithherparents.Exercisesmustbeworkingmustbecan’t05SummarySummarizethegrammarrules.Summary注意語氣和時(shí)態(tài)06Homework

一、用所給詞的適當(dāng)形式或根據(jù)漢語提示填空1.It’scoldoutside.Pleaseputonyour

(外套).2.Tomstayeduplatetostudylastnight.Nowhefeelsvery

?

(sleep).3.Jackmight

(be)afootballplayerwhenheisolder.4.Ifit’sasunnyday，thecompetitionwillbeheld

?

(outdoor).coat

sleepy

be

outdoors

一二三5.Mybrothersmajorinchemistryandhalfoftheirtimeatuniversityis

spentin

(實(shí)驗(yàn)室).laboratories

一二三二、根據(jù)語境從括號(hào)內(nèi)選擇正確的情態(tài)動(dòng)詞填空6.Putonmoreclothes.You

(must/can’t)feelcoldwithonlya

shirton.7.Therearesomegreycloudsinthesky.It

(maynot/might)

rainlater.8.James

(maynot/can’t)cometotheparty.Hesaidhe

wasn’tcertainwhathisplanswere.must

might

maynot

一二三9.IthoughtIheardsomeoneknockingatthedoor.It

?

(must/could)bemylittlebrother.Heusuallycomeshomearoundnow.

Orit

(might/must)bemymother.It

(can’t/might

not)bemyfather.Heneverknocks.10.WherehaveIputmykeys？They

(can’t/must)have

walkedaway.They

(must/may)benearthesink，sinceI

washedmyhandswhenIcameinfromthegarden.Orthey

?

(could/must)beinthepocketofmypants.could

might

can’t

can’t

may

could

一二三

三、短文填空Afewdaysago，somethingstrange11.

(happen)in

myhouse.EverynightI12.