Period4GrammarModalVerbsUnit2HealthyEatingThefirstwealthishealth.

健康是人生第一財富。Alightheartliveslong.

豁達者長壽。Earlytobedandearlytorisemakesamanhealthy,wealthyandwise.

早睡早起會使人健康、富有和聰明。Withouthealthnopleasurecanbetastedbyman.

沒有健康就沒有樂趣。Goodhealthisoverwealth.

健康是最大的財富。

ProverbsWhat

should/shouldn’t

wedotokeephealthy?Goodhealthisoverwealth.

Ifyou’dliketogiveadviceoropinions,youcanuse

should/oughtto/hadbetterdoWhat

ought

we

to

dotokeephealthy?Goodhabitscanhelpustokeephealthyandbadonescancausediseases.ThereisaseriousdiseasecalledH1N1fluthesedays.Itspreadseasilyamongpeopleinspringandautumn.Thefluisaseriousdisease,butwedon’thavetobeafraidofit.Wecandosomethingtopreventit.Buthow?Weoughttokeeptheairfreshallthetime.

Weoughttokeepawayfromcrowdedplaces.We’dbetterdrinkmorewatereveryday.

Youshouldgotoschoolrightaway.It’seighto’clocknow.Heshouldbeatwork.Itseemssounfairthisshouldhappentome.Youshouldhaveremindedmeofthemeeting.Whatshouldwedonow?sumup義務

表驚訝：竟然推測

用于第一人稱疑問句，詢問對方的意愿

表責備，譴責Whatkindoffood

must

weeattobestrong?Goodhealthisoverwealth.must/havetoMustIfinishthetaskrightnow?Yes,youmust/youhaveto.No,youneedn’t/youdon’thaveto.ShecalledmeyesterdayeveningbutIdidn’thearit.

I_________________(be)asleep.

musthavebeen

1.--Willyoustayforlunch?--Sorry,_____.Mybrotheriscomingtoseeme.A.Imustn’tB.Ican’tC.Ineedn’tD.Iwon’t2.--MayIpickaflowerinthegarden?--________.A.No,youneedn’tB.Not,please.C.No,youmustn’tD.No,youwon’t.3.You______returnthebooknow.Youcankeepittillnextweekifyoulike.A.can’tB.mustn’tC.needn’tD.maynot4.John,you__playwiththeknife,you__hurtyourself.A.won’t;can’tB.mustn’t;mayC.shouldn’t;mustD.can’t;shouldn’tCBB

C

mustn’tneedn’tshouldn’tcan’t表示否定的情態動詞的用法:

不準,禁止沒必要(=don’thaveto)不應該(=oughtnotto)不能，不可能

Couldyouusethemtomakesentences?Whatmodalverbshaveyoulearned?can/couldmay/mightwill/wouldshall/shouldhadbettermusthavetoneedoughttodare*can/could

只能表示現在或過去的能力*

beableto

能用于各種時態相當于managetodosth./succeedindoingsth.1.表示“能力”的情態動詞的用法can,could（beableto）He___________gotothepartyyesterdayeveninginspiteoftheheavyrain.2.Althoughhe_____swim,he__________crosstheriver.wasabletocan’twasabletomay/might,can/could2.表示“許可”的情態動詞

1.---____Igoouttoplay,mum?---No,you___.Youshoulddoyourhomeworkfirst.A.Might;wouldn’tB.Can;needn’tC.Can;can’tD.Need;mustn’t2.---CouldIcallyoubyyourfirstname?---Yes,you____.A.willB.couldC.canD.might3.表示“請求”的情態動詞的用法will/would,shall/should*均可表示將來。過去時為

should,would.

*

will,would可表示意愿、常出現的動作。

在疑問句中表示請求和建議.must,could,may,might,can’t4.表示“推測，可能性”的情態動詞

can表示推測時，只能用在否定句或疑問句中。It’ssolate.CanTombereading?這么晚了，湯姆還在看書嗎？這個人不可能是瑪麗，她生病了。Itcouldn’tbeMary.Shehadfallenill.情態動詞能表示時態嗎？1.表示對現在的推測2.表示對過去的推測3.表示對將來的推測表示推測——情態動詞的重要用法肯定的推測可能的推測否定的推測疑問的推測must

對將來

對現在

對過去情態動詞may,mightcan’t,couldn’tcan,could+V.

+V.+havedone常見mustbe+bedoing+V.+V.+havedone+bedoing

可以用not表示“可能不”

+V.+V.+havedone+bedoing+V.+V.+havedone+bedoingYoulooktired.You_______gotobednow.should

You_______________believeeverythingyoureadontheInternet.shouldn’t/can’tMymothercookedalotoffoodforme.Shehasbeencookingallthemorning.Shemustbetirednow.Ihavejusteatenalotoffoodforlunch.Youcan’tbehungrynow.

Myhouseisneartherailway.

It____benoisythere.

must

Theoldrestaurant______beverygood.It’salwaysfullofpeople.

Thenewrestaurant______beverygood.It’salwaysempty.

must

can’t

WhereisJane?Perhapssheisreadingnewspapers.

=She________________(read)newspaper.

maybereading

InChina,manychildren________wearuniformwhentheygotoschool.haveto

Don’ttellanybodywhatIsaid.You______keepitasecret.must

Thefloorisclean.You________sweepit.needn’t

Thefloorisclean.You___________sweptit.musthaveIpromisedIwouldbeontime.I_________belate.couldn’t

LastnightPaulbecameillsuddenly.We________callthedoctor.hadto

Wecan’trepairthecarourselves.We__________takeittoagarage.haveto

Icanmanagetheshoppingalone.You_________comewithme.needn’t

Thatisanimportantbook.You______keepitwell.must

Excuseme,______youtellmethewaytotherailwaystation,please?could

Youarecarryingalotofthings.Youcan’topenthedooryourself.There’samanstandingnearthedoor.Yousaytohim:______youopenthedoor,please?Could

______youlikeacupofcoffee?Would

1.Bylunchtimetheywouldallbesold.2.Hisrestaurantoughttobefullofpeople.3.Whatcouldhavehappened?4.Nothingcouldhavebeenbetter.5.Somethingterriblemusthavehappened.6.Iwilltakeallthatfatoffyouintwoweeks.7.Hecouldnotbelievehiseyes.8.Hewonderedifheshouldgotothelibrarytofindout.9.Hecouldn’thaveYongHuigettingawaywithtellingpeoplelies.10.Hehadbetterdosomeresearch.11.Aftereatingintherestaurantpeoplewouldbecomefiredveryquickly.IntentionB.DutyC.PromiseD.PossibilityE.Guessing(D)(D)(E)(A)(B)(A)(B)(D)(C)(D)(D)1.Ithoughtyou

likesomethingtoread,soIhavebroughtyousomebooks.

AmayB.might

C.can

D.must

2.You

tothemeetingthisafternoonifyouhavesomethingimportanttodo.

A.needn‘ttocome

B.don’tneedcomeC.don'tneedcomingD.needn'tcome

3.He

youmorehelp,eventhoughhewasverybusy.

A.mighthavegivenB.mightgiveC.canhavegivenD.maygive

4.---

Ihelpyouwithsomeshoes,madam?

---Yes,Iwouldliketotryonthosebrownones.

A.Will

B.ShouldC.May

D.Must

5.Thereasonwhythey

leavewasn’texplainedtous.A.had

B.hadtoC.mustD.might

6.Isearchedformywalletanditwasn’tthere.IthoughtI

itathome.A.leftB.haveleftC.mighthaveleftD.canhaveleft

7.I___asleepbecauseittookmealongtimetorealizethatthetelephonewasringing.couldhavefallen

B.shouldhavefallenC.musthavefallenD.mustn'thavefallen

8.Theonlythingthatreallymatterstothechildrenishowsoonthey__returntotheirschool.

A.can

B.mustC.havetoD.oughtto

9.IwanttogotoMary's,butyou__gowithme.

A.neednotB.mustnotC.needD.must10.Whatwe___

getseemsbetterthanwhatwehave.

A.canB.could

C.can't

D.couldn't11.-Mygoodness!I'vejustmissedthetrain.-That'stoobad.Iamsureyou___

it,ifyouhadhurried.

A.

couldhavecaughtB.hadcaughtC.wouldcatch

D.couldcatch

12.Look!Whatyou'vedone!You

morecareful.

A.

maybeB.hadto

C.shouldhavebeen

D.wouldbe13.__Irepeatthequestion?

A.

Shall

B.

Will

C.

Doyouwantthat

D.Do1４.─Therewerealready5peopleinthecar,

buttheymanagedtotakemeaswell.─It

acomfortablejourney.

A.

can’tbe

B.

shouldn’tbe

C.

couldn’thavebeenD.

mustn'thavebeen

1５.Tomoughtnotto

_meyoursecret,buthemeantnoharm.

A.

havetold

B.

tell

C.

betellingD.

havingtold

１６.Iparkedmycarrightherebutnowit‘sgone.It

.

A.

mustbestolen

B.

maybestolen

C.

musthavestolenD.

musthavebeenstolen

１７.He

theworkyesterday,buthedidn‘t.

A.

musthavefinishedB.

needfinish

C.

finished

D.

shouldhavefinished

１８.Hedidnotpasstheexamination.Asagoodstudent,

he

.

A.

mustn‘thavefailed

B.

maynothavefailed

C.

needn‘thavefailedD.

shouldn'thavefailed

1SAM:HowcanIgrowthinner,Mum?MUM:Well,you__________eatfoodwithplentyoffibrethathelpsyoudigestbetter.Andyou__________stopdrinkingcolaoreatingsweetfood.SAM:DoesitmeanI__________eat.myfavouritefriedchickenanymore?MUM:Notexactly,ifyoulovefriedchicken,you__________giveitup.Justeatitlessoften.You__________worrytoomuch:alittlefriedchicken__________doyougood!havetoshould

shouldn’t

needn’tdon’thaveto

will2DOCTOR:Youaresickbecauseyou’veeatenpoisonousmushrooms.Wheredidyougetthem?LUCY:Ipickedthemintheforest.Iknowwe__________eatfreshvegetables.DOCTOR:Oh,you__________eatthemuntilyou’resuretheyarenotpoisonous.LUCY:Thankyou,doctor.I’llbemorecarefulnexttime.3CHARLES:IwishIcouldseethingsclearlyinthedark.TOM:Eatingcarrots__________helpyouseebetter.You__________eatsomeeveryday.ha