【课件】Unit+5Discovering+useful+structures+课件-人教版（2019）必修第三册

Unit5THEVALUEOFMONEYDiscoveringusefulstruturesBook1Modalverbs情态动词*定义；*基本特征；*常见情态动词、其否定式、其缩略形式；*情态动词的表意功能；*常见情态动词的用法；*情态动词的特殊用法。Focuson基本用法情态动词一、用情态动词(can/could、may/might、will/would、shall、should、must)填空1.Youneedn’treturnthebooknow.You

keepitnextweekifyoulike.

2.Ifyoureallywantyourselftobeingoodhealth,you

notsmokesomuch.

3.Therearesomanymistakesinyourhomework!You

bemorecarefulnexttime.

4.MyEnglish-Chinesedictionaryhasdisappeared.Who

havetakenit?

5.MrBaker,anumberofstudentswanttoseeyou.

theywaithereoroutside?

6.Someone

haveleftthetap(水龙头)on,forthewaterwasfloodingthebathroom.

canmustshouldcouldmustShall二、单句填空1.(2018·天津春季高考)Itarousedher

(curious)involunteerwork.

2.(2018·全国Ⅰ)Toavoidkneepain,youcanrunonsoftsurfaces,doexercisesto_________(strength)yourlegmuscles(肌肉),avoidhillsandgetgoodrunningshoes.

curiositystrengthen3.(2018·江苏)Butnow,withthe

(combine)ofabetterpricepointandagenerallyfresherproduct,theycanstayinbusiness.

4.Icansayitis

greatbenefittoshareyourfeelingswithsomeoneyoutrust,whichisalso

(benefit)toyourmentalhealth.

5.Susanhadaquarrelwithherdeskmateandalwaysglared

herinthefollowingdays.

6.Myfathercamefromapoorfamilyandearned

(he)livingbysellingnewspapersatonetime.

combinationofbeneficialathis

7.Thesurvivors

(lie)onthebeach,tired,hungryandshocked.

8.Thelengthofthearticleshould

(limit)to400wordsorso.

9.Ifyoujustspendtime

(balance)advantagesanddisadvantages,youmaygetnothingintheend.

laybelimitedbalancing

Ⅱ.用适当的情态动词填空(一空一词)1.YououghttohavehelpedhimwithhisEnglish,_________you?

2.—

westartearly?

—Let'snotstarttooearly.3.You

notrefertoyournotesinthetestaccordingtotherule.

4.—

Ifinishtheworktoday?

—Yes,you

./No,you

.

5.—

wedoitnow?

—No,you

.

shouldn't/oughtn'tShallshall/mustNeedmustneedn't

Mustneedn't

情态动词是一种本身有一定的词义，但要与动词原形一起使用，给谓语动词增添情态色彩，表示说话人对有关行为或事物的态度和看法，认为其可能、应该或必要等。定义:情态动词1.在形式上，情态动词没有实义动词的各种变化，只有could,would,hadto,might等几个过去式，其他情态动词如must,oughtto等的过去式皆与现在式同形。2.在意义上，大多数情态动词有多个意义。3.在用法上，情态动词与助动词一样，须后接动词原形，构成谓语动词。基本特征:常见情态动词、其否定式、其缩略形式:情态动词否定式缩略形式cancouldmaymightshallshould情态动词否定式缩略形式willwouldmusthadbetteroughttocannot/cannnotcan'tcouldnotcouldn'tmaynot/mightnotmightn'tshallnotshan'tshouldnotshouldn'twillnotwouldnotmustnothadbetternotoughtnottowon'twouldn'tmustn'toughtn't/Findthesentencesusingmodalverbsinthepassage..1.Oliverbelievesthatwithamillion-poundbanknoteamancouldliveamonthinLondon.2.Wouldyoustepinsideamoment,please?3.Goodmorning,sir,wouldyoupleasecomein?4.Mayweaskwhatyou'redoinginthiscountry...?5.Well,Ican'tsaythatIhaveanyplans.6.Well,youmustn'tworryaboutthat.7.Couldyouoffermeworkhere?8.Ifyoudon'tmind,mayIaskyouhowmuchmoney...?9.Well,itmayseemluckytoyoubutnottome.10.Ifyou’llexcuseme,Ioughttobeonmyway.11.Youmustn'tthinkwedon'tcareaboutyou.12.Youcan'topenituntiltwoo'clock.A.necessity表示必要性B.possibility表示可能和推测C.obligation表义务性D.request表示提出请求或发出指示E.advice表示提出建议F.intention表示意图和愿望G.ability表示能力H.permissionandprohibition表示许可和禁止ThefunctionsofmodalverbsA.necessity表示必要性1.Thechickenmustbecookedthoroughly.2.Youhavetobookinadvance.B.possibility表示可能和推测1.Thatmightnotbetrue.2.Oh,youmustbeLily'shusband.C.obligation表义务性1.Thechildrenshouldfollowtheschoolrules.2.Ioughttobeonmywaynow.D.request表示提出请求或发出指示1.Willyoustayforlunch?2.Mayweaskwhatyou’redoinginthiscountry?ThefunctionsofmodalverbsE.advice表示提出建议1.Tosolvetheproblem,youshouldasktheexpertforadvice.2.You'dbetterservehimquickandgethimoutquick.F.intention表示意图和愿望1.I’llwashyoursportsjacket.2.Hesaidhewouldbehereateighto’clock.G.ability表示能力1.Thechildrencanreadandwrite.2.Icouldfeelthegroundshaking.H.permissionandprohibition表示许可和禁止1.Youcangooffdutynow.2.Youmustn'tdothat.Tellthefunctionofthemodalverbs.1.Oliverbelievesthatwithamillion-poundbanknoteamancouldliveamonthinLondon.2.Wouldyoustepinsideamoment,please?3.Goodmorning,sir,wouldyoupleasecomein?4.Mayweaskwhatyou'redoinginthiscountry...?5.Well,Ican'tsaythatIhaveanyplans.6.Well,youmustn'tworryaboutthat.7.Couldyouoffermeworkhere?8.Ifyoudon'tmind,mayIaskyouhowmuchmoney...?9.Well,itmayseemluckytoyoubutnottome.10.Ifyou’llexcuseme,Ioughttobeonmyway.11.Youmustn'tthinkwedon'tcareaboutyou.12.Youcan'topenituntiltwoo'clock.possibilityrequestrequestpossibilityrequestrequestintentionnecessitypermission/prohibitionpermission/prohibitionrequestpossibilityHecanrideabikenow,buthecouldn’tafewweeksago.一、can/could1.表示能力，常译为“会，能”。can表示现在的能力，could表示过去的能力。2.表示可能性。can多用于否定句和疑问句中，但也可用在肯定句中；could表示过去的可能，多用于间接引语中。①Thatcan’tbeMary-shehasgonetoschool.②ItoldthebossthatIcouldn’tfinishtheworkinsuchashorttime.3.表示请求或允许，译为“可以”。表示此意时，用could语气更委婉。-Can/CouldIborrowyourbike?-Yes,youcan.【拓展】1)表示惊讶、怀疑、不相信的态度

(主要用于否定句、疑问句和感叹句中)。Canhardworkchangeapersonthatmuch?2)can亦可表示“有时会”。Youcanbeverynaughty.1.表示说话人的猜测，意为“或许；可能”。

might表示的可能性比may小。

You’dbettertakeanumbrella.Itmay/mightrain.2.用来提出问题，问可不可以。用might时语气更委婉。

Might/Mayweuseyourtypewriterforalittlewhile?3.表示“可以”。作此用法时，might是may的过去式。①Youmaycomeifyouwish.②Theboyaskedhismotherifhemightgotoplaybasketball.二、may/might①Fishwilldiewithoutwater.②Hewouldgetupearlywhenhelivedinthecountry.三、will/would【拓展】表示意愿或意志。will表现在，would表过去。Will/Wouldyoupleasepassmethatbook?2.表示请求、建议等。用would比用will委婉、客气。1.表示习惯性动作。will指现在，would指过去。①Iwillhelpyouifyouneedme.②Hesaidhewouldhelpyouifyouneededhim.四、shall/should◆shall1.用于第一人称疑问句中，表示征求对方的意见或向对方请示。

Thisroomissodirty.Shallwecleanit?2.用于第二、三人称，表示法律等条文中的规定或说话人的决心、给对方的命令、警告、允诺或威胁。

Nothingshallstopusfromcarryingouttheplan.◆should1.用于第一人称疑问句询问对方的意愿，但语气更委婉温和。ShouldIopenthewindow?2.表示劝告、建议、命令、责任或义务。Nomatterwhoyouare,youshouldobservethelaw.3.表示推测或可能性。Youshouldbehungryafterthelongwalk.【拓展】should还可表示意外、惊讶等，意为“竟会，竟然会”。Itissurprisingthatheshouldhavemadesuchafoolishmistake.【拓展】表示与说话人愿望相反、不耐烦的感情色彩，可译为“一定要；偏偏；非得”。五、must/can’t1.must表示义务、必要性、命令，意为“必须”。

否定式mustn’t表示“不准；禁止”。Wemustdoeverythingstepbystep.2.must表示推测，意为“想必；准是；一定”，只用于肯定句，否定句用can’t。①Aftersuchalongwalk,youmustbetired.②-Myhouseisnearabusystreet.-Itcan’tbeveryquiet.

Ifyoumustknow,hernameisMary.【比较】must和haveto表示“不得不、必须”时，haveto与must意思上很接近。但must常表示说话人的主观看法；而haveto一般强调客观需要。haveto表示“不得不，必须”，有人称、时态和数的变化。否定式为don’thaveto。①Therearesomanymistakesinhisarticlethathehastorewriteit.

②Youdon’thavetobuyagift,butyoucanifyouwantto.六、haveto①I’mverytired.Imustsitdownandhavearest.

②Ihavetohurryupnow.Ihaveatraintocatch.七、oughttooughtto表示“应该；应当

”，可以表示有责任或义务而做某事。没有人称、数和时态的变化，否定式为oughtnotto。①Theyoughttoapologize.②Suchthingsoughtnottobeallowed.③Heoughtn'ttohavebeendrivingsofast.【比较】oughtto和shouldoughtto与should一般来说，两者可以互换，只是oughtto的语气略强。另外，表示出于法令规则、行为准则、道德责任等客观情况而“应该”做某事，通常用oughtto；若用should则含有个人意见，强调主观看法。1)Youareolderbrother.Yououghttotakecareofyourlittlesister.

2)YoushouldnotwastetimeinwatchingTV.八、hadbetterhadbetter，“最好”，缩写为“’d better”，表示提出建议、劝告或命令等，含有“应该做某事，有义务做某事”之意，一般适用于对晚辈、平辈。It’s

half

past

two.

I

think

we

had

better

go

home.否定形式为hadbetternot，疑问句中hadbetter的否定形式有两种：Hadn’t +主语 +better + V原形+...?Had + 主语 + better not +V原形+…?①You

had

better

not

talk

with

strangers.

②Hadn’tyoubettergowiththem? ③Hadwebetternotgo? A:Whoisknockingatthedoor?B:It______beTom.Hesaidhewouldcomeatthistime.A:

It____behim.Hehasgoneabroad.B:

It____beJohn,butIamnotsure.A:

Who___itbe?B:

Gotit?ItisMary.must

can’tmaycanReadthepassageandfillintheblankswithsuitablemodalverbs.①

He

can’t

know

my

address.

他肯定不知道我的地址②Hemustbedoinghisexercisesintheclassroom.

他一定正在教室做练习。③She

might

have

been

ill

yesterday.

她昨天可能病了。情态动词的特殊用法

情态动词+do推测现在或将来发生的动作或状态；情态动词+bedoing推测正在进行的动作或状态；情态动词+havedone推测过去发生的动作或状态。情态动词表推测：对肯定、把握性很大情况的推测：

mustbe/do(现在或将来)mustbedoing(说话时正在进行)musthavedone(已发生的或状态)对否定情况的推测：can/couldnotbe/do(现在或将来)can/couldnotbedoing(正在发生的动作)can/couldnothavedone(过去的动作或状态)对不太肯定、把握性不大情况的推测：may/might(not)

be/do(现在或将来)may/might(not)bedoing(说话时正在发生动作)may/might(not)

havedone(已发生的动作或状态)(1)could/mighthavedone

本来能够做的事却没做

Hecouldhaveworkedouttheproblem.(2)should/oughttohavedone

本来应该做而实际上未做IreallyregrettedwastingthehourswhenIshouldhavestudiedhard,butitwastoolate.(3)oughtnottohavedone/shouldn'thavedone

本来不应该做而实际上做了I’mverysorryforthewordsIshouldn’thavesaidtoyouatthatmoment.1.Withsomuchworkonhand,you____toseethegamelastnight.A.mustn’tgo

B.couldhavegoneC.shouldn’tgo

D.shouldn’thavegone2.-IsawMaryinthelibraryyesterday.

-You_____her.Sheisstillabroad.

A.mustn’tsee

B.can’thaveseen

C.mustn’thaveseen

D.couldn’tsee3.AuntMary______thetrain;otherwiseshewouldhavearrivedherebynow.

A.musthavemissed

B.shouldhavemissed

C.hadmissed

D.mightmiss

Exercises实战高考2.Mywalletwasgone.________________________.（我只可能把它落在了G9公共汽车上。）[2019天津卷]1.Jimsayswe___stayinhishouseaslongasweleaveitcleanandtidy.[2020·全国新高考I卷·短文填空]A.mustB.canC.needD.shouldIcouldonlyhaveleftitontheG9bus4.

Ican’tfindmypurse.I___itinthesupermarketyesterday,butI'mnotsure.

[2018天津卷]A.shouldleave B.musthaveleftC.mightleaveD.couldhaveleft3.

Intoday’sinformationage,thelossofdata____causeseriousproblemsforacompany.

[2018北京卷]A.need B.shouldC.can D.must─_____youinterruptnow?Can’tyouseeI’monthephone?─SorrySir,butit’surgent.

A.CanB.Should

C.Must

D.Would句意“—你现在一定要打断我吗?难道你不能看到我在打电话吗?—对不起先生,事情很急”。根据语境结合选项的词义，C选项符合题意。C2.Oneofourrulesisthateverystudent_____wearschooluniformwhileatschool.A.mightB.couldC.shall

D.willshall用于第二、第三人称表示说话人给对方命令、警告、允诺或威胁。这儿是说根据学校规定，学生在校时都必须要穿校服。C3.IgotcloseenoughtohearthemspeakingChinese,andIsaid“NiHao,”justasI_____doinChina.

A.must

B.mightC.canD.should句意为：我靠他们足够的近，以听见他们说汉语，而且我会像我在中国可能做的那样说“你好”。might表示“可能”。B4.—ShallIinformhimofthechangeoftheschedulerightnow?—Iamafraidyou_______,incasehecomeslateforthemeeting.

A.willB.mustC.mayD.can根据下句后半部分“以免他开会迟到”，可知是告诉上句说话人“你必须立刻告诉”，故答案为B。本句的意思是：

我应该立刻通知他安排的变化吗？

恐怕你得立刻告诉他，以免他开会迟到。B5.—Idon’treallylikeJames.Whydidyouinvitehim?—Don’tworry.He_____come.Hesaidhewasn’tcertainwhathisplanswere.A.mustnot

B.neednotC.wouldnotD.mightnot根据语境“他说他不太确定他的计划是什么”可知“他可能不会来”。mustnot“不准”；neednot“不必”；wouldnot“不会”；mightnot“可能不”。DReadthepassageandfillintheblankswithsuitablemodalverbsinthebox.InthefilmTheMillionPoundBandNote,HenryAdamsisstuckinaforeigncountrywithoutmoneyandfriends,andwithnowheretostay.Whilethissituation________seemunusual,itcansometimeshappentotravellers.Incaseithappenstoyouonatripabroad,what________youdo?First,andmostimportantly,you_______staycalm.mayshouldmustmaymustcanoughttomighthadbetterwouldshouldFear________causeyoutobecomeconfused.Youneedtothinkclearly.Second,youshouldgotoyournearestconsulate.They________beabletohelptosomeextent.Third,you_________dowelltocheckwithsomelocalcharities.They________offerhelptotravellersinneed.Fourth,you__________avoidgettingintotrouble.You________thinkthatstealingsomemoneyorfoodwouldhelpyou,butyoushouldnotdoso.Gettingcaught________ruinyourlife.canmaymustcanoughttomighthadbetterwouldshouldoughttohadbettermightwouldmightwould【变式训练】用dare、must、can、need、should、oughtto、usedto、wouldrather、hadbetter的适当形式填空(1)It'sstrangethathe

havetakenthebookswithouttheownerspermission.

(2)I

haveworriedbeforeIcametothenewschool,formyclassmateshereareveryfriendlytome.

(3)You

becarefulwiththecamera.Itcosts!

(4)George

_______

havegonetoofar.Hiscoffeeisstillwarm.

(5)Facingtheenemies,oursoldiers

_____

diethangivein.

shouldneedn'tmustcan't/couldn't

wouldrather(6)LilyplayedthetrickonJimonpurpose,soshe

havebeenforgiven.

(7)Beforeshe

move,sheheardaloudnoise,whichgrewtoaterribleroar.

(8)Whenitcomestoenrichingyourvocabulary,you

readvariouskindsofbookswritteninEnglish.

(9)Heissostrictandstubborn.How

youtellhimwhathappened?

(10)Thegirl

beshy,butsheisgraduallygettingactiveingroupworkandismorewillingtoexpressherself.

shouldn't/oughtn'ttocouldhadbetterdare

usedto2.Mywalletwasgone.___________________________________.（我只可能把它落在了G9公共汽车上。）

[2019天津卷]1.Jimsayswe______stayinhishouseaslongasweleaveitcleanandtidy.[2020·全国新高考I卷·短文填空]A.must

B.can

C.need

D.shouldIcouldonlyhaveleftitontheG9busBFillintheblankswithsuitablemodalverbsinthebox.InthefilmTheMillionPoundBankNote,HenryAdamsisstuckinaforeigncountrywithoutmoneyandfriends,andwithnowheretostay.Whilethissituation______seemunusual,itcansometimeshappentotravellers.Incaseithappenstoyouonatripabroad,what_______youdo?First,andmostimportantly,you______staycalm.Fear______causeyoutobecomeconfused.Youneedtothinkclearly.Second,youshouldgotoyournearestconsulate.They_________beabletohelptosomeextent.Third,you_______dowelltocheckwithsomelocalcharities.They_______offerhelptotravellersinneed.Fourth,you____________avoidgettingintotrouble.You______thinkthatstealingsomemoneyorfoodwouldhelpyou,butyoushouldnotdoso.Gettingcaught_______ruinyourlife.may,must,can,oughtto,might,hadbetter,would,shouldmayshouldmustcanoughttowouldmightwouldhadbetterP542mightWorkinpairs.DiscussthescenefromTheMillionPoundBankNoteonpage52andshareyourunderstandingofthestory.Usemodalverbswhennecessary.A:Ithinkit’skindofRoderickandOlivertogiveHenrythemoney.B:I’mafraidIdisagree.Theyshouldn’tbemakingabetonhim.A:ButHenrymightgetintotroubleiftheydidn’tofferhimthemoney.B:Well,iftheyreallywantedtohelpHenry,theycouldofferhimajob.A:Maybeyou’reright.ButIguessthatwouldbeadifferentstory...P544Suggestedconversation:Thepastfuturetense1.Thesaidtheletterinsidewouldexplainwhatitwasallabout.2.IsaidthatIwouldgothenextday.3.Ithoughtitwasgoingtorain.4.Heaskedwherehewastoputit.5.Iwasabouttogotobedwhenthephonerang.6.Jacksaidhewasleavingtomorrow.7.Shedidn’tsaywhethershewascomingtolunch.1.Thesaidtheletterinside_____________whatitwasallabout.2.IsaidthatI___________thenextday.3.Ithoughtit_________________.4.Heaskedwherehe___________it.5.I__________________tobedwhenthephonerang.6.Jacksaidhe__________tomorrow.7.Shedidn’tsaywhethershe__________tolunch.wouldgowouldexplainwasgoingtorainwastoputwasabouttogowasleavingwascoming*定义；*基本结构；*动词构成和用法：1.would(not)+V原形2.was/were(not)goingto+V原形3.was/were(not)to+V原形4.was/wereaboutto+V原形5.was/were+V-ingFocuson基本用法过去将来时过去将来时表示从过去的某一时间来看将来要发生的动作或呈现的状态。基本结构：同一般将来时，将系动词be或情态动词will变为过去式，即：was/weregoingto+V;would+V过去将来时①Ididn’tknowifhewasgoingtocome.②Shetoldusthatshewouldnotgowithus,ifitrained.过去将来时常用于宾语从句和间接引语中。2.动词构成和用法1)would(not)+V原形Hepromisedthathewouldhelpme.他答应他会帮助我。WhenIworkedonafarm,Iwouldgetupat5a.m.我在农场劳动时，总是早上5点钟起床。表示过去的习惯：即过去的动作习惯或倾向。表从过去某一时间来看将要发生的动作。(尤其用于宾语从句中)2)was/were(not)goingto+V原形Iwasgoingtoleavewhenhecamein.他进来时我正要离开。Ithoughtitwasgoingtorain.我想要下雨了。表示过去的打算。表示在过去看来有迹象表明将要发生某事。3)was/were(not)to+V原形：①Heaskedwherehewastoputit.他问他该把它放在哪里。②Shesaidshewastogetmarriednextmonth.她说她计划在下个月结婚。表示过去按计划或安排要做的事情。4)was/wereaboutto+动词原形①Iwasabouttogotobedwhenthephonerang.电话铃响时我正好要上床睡。②Icouldn’tgotoTom’spartyasIwasabouttogointohospital.我就要住院，所以不能参加汤姆办的晚会了。表示在过去看来即将要发生的动作，由于本身已含有“即将”的意味，所以不再与表示具体的过去时间状语连用。①Jacksaidhewasleavingtomorrow.杰克说他打算明天动身。②Shedidn’tsaywhethershewascomingtolunch.她没有说她是否来吃午饭。注意：可用于该句型中动词为come,go,leave,arrive,begin,start,stop,close,open,die,join,borrow,buy等瞬间动词。表示在过去看来即将发生的动作。5)was/were+V-ing：1.Shesaidthebus__________(leave)atfivethenextmorning.2.Iwasn’tsurewhetherhe___________________________(lend)mehisbookthenextmorning.3.I________________________(write)aletternextweek.4.Shesaidthatshe_______________________________(write)aletternextweek.Completethesentenceswiththecorrectformofgivenwords.wasleaving

wouldlend/willwrite/amgoingtowritewouldwrite/wasgoingtolendwasgoingtowriteWhentwelve-year-oldJohnWilsonwalkedintohischemistryclassonarainydayin1931,hehadnowayofknowingthathislife____________(change)completely.[2020江苏]Afterrunninghundredsoftests,theresearchersnotedthatthemonkeys_________(go)forthehighervaluesmorethanhalfthetime…[2019全国卷III]直击高考wastochangewouldgo3.AlbertEinsteinwasbornin1879.Asachild,fewpeopleguessedthathe__________afamousscientistwhosetheorieswouldchangetheworld.[2018浙江]A.hasbeen

B.hadbeenC.wasgoingtobe

D.was4.Atcollege,BarackObamadidn'tknowthathe__________thefirstblackpresidentoftheUnitedStatesofAmerica.[2015陕西]A.wastobecome B.becomes C.istobecome D.becameCompletethesentencesusing“woulddo”or“was/weregoingtodo”formofthegivenverbs.1.PhilipboughttwoticketsforThePhantomoftheOpera.He____________________________(watch)thismusicalwithhisgirlfriendontheweekend.2.IwassosurprisedatthenewsthatDavid___________________________(play)theroleofthedinosaurintheplaythatIgavehimahugoutofjoy.3.Lilydecidedthatshe_________________________(settle)inNewYorkandpursueherdreamofbecominganactress.4.Hey,Timmy,I______________(call)you.Butnowthatyouarehere,Idon'thaveto.5.Thecompetitionwassoclosethatnoonewassurewho___________(win)theBestActoraward.6.Jimwasnothererightnow.Hesaidhe___________________________(be)ondutyatthelibrarythisafternoon.wouldwatch/wasgoingtowatchwouldsettle/wasgoingtosettlewasgoingtoplaywasgoingtocallwouldwin/wasgoingtobeP543wouldplay/wouldbeWhentwelve-year-oldJohnWilsonwalkedintohischemistryclassonarainydayin1931,hehadnowayofknowingthathislife______________(change)completely.[2020江苏]Afterrunninghundredsoftests,theresearchersnotedthatthemonkeys_________(go)forthehighervaluesmorethanhalfthetime…[2019全国卷III]wastochangewouldgoDiscussthescenefrom

TheMillionPoundBandNoteonPage52andshareyourunderstandingofthestory.Usemodalverbswhennecessary.A:Ithinkit'skindofRoderickandOlivertogiveHenrythemoney.B:I'mafraidIdisagree.Theyshouldn'tbemakingabetonhim.A:ButHenrymightgetintotroubleiftheydidn'tofferhimthemoney.B:Well,iftheyreallywantedtohelpHenry,theycouldofferhimajob.A:Maybeyou'reright.ButIguessthatwouldbeadifferentstory...A.necessity表示必要性B.possibility表示可能和推测C.obligation表义务性D.request表示提出请求或发出指示E.advice表示提出建议F.intention表示意图和愿望G.ability表示能力H.permissionandprohibition表示许可和禁止情态动词主要表意功能:过去将来时1.概念2.动词形式与用法

woulddowas/weregoingtodowas/weretodowas/wereabouttodowas/were+V-ingⅠ.选择填空。1.-Areyougoingtoattendhisbirthdayparty?-I’mnotsure.I_________(must/may)gotovisitmyuncle.2.WhenMarkwasachild,he_________(could/would)goskatingwithhisfatherinwinter.3.-Couldyougivemesomeadviceonhowtomakefriends?-Ofcourse.You_________(usedto/hadbetter)befriendlytoothers.4.You_________(oughtto/usedto)takethedoctor’sadvicenowthatyouarecoughingbadly.oughttomaywouldhadbetter5._________(Can/Should)Ihaveawordwithyou?Itwon’ttakelong.6.Allworkers_________(should/may)bestrictwiththemselvesintheirwork.7.Youshouldn’tleavesmallobjectslyingaround.Suchobjects________(must/might)beswallowed(吞食)bychildren.8.I____________(usedto/wasgoingto)visityoulastnight,butanunexpectedvisitorcametomyhouse.wasgoingtoCanshouldmightⅡ.TranslatethesentencesintoEnglish1.Thephoneisringing,________________________________.(但是没人接，他一定不在家）2.Ican'tfindmycoat.________________________________.(我可能昨天落在店了)3.It'sapity._____________________________(你本应该邀请她来参加你的毕业典礼的)4.办公室不能抽烟。__________________________________.5.—他一定要去吗？—不，不需要。________________________________________.butnobodyanswers.Hecan'tbeathomeImighthaveleftinthestoreyesterdayYoushouldhaveinvitedhertoyourbirthdaypartyYoumustn'tsmokeintheoffice.-Musthegothere?-No,heneedn't.

1.他已经工作了11个多小时。他一定累了。2.如果你想说一口流利的英语，你应该努力学习。3.一条狗突然跑到了我的车前，我不得不紧急刹车。4.海伦问约翰他是否将要去看星期天的展览。Ⅲ.用情态动词或正确的时态翻译下列句子。Hehasbeenworkingformorethan11hours.Hemustbetired.IfyouwanttospeakEnglishfluently,youshould/oughttoworkhard.Adograninfrontofmycarsuddenly.Ihadtomakeasuddenstop.HelenaskedJohnifhewasgoingto/wouldvisitanexhibitiononSunday.5.他们问我是否很快要去广州。

TheyaskedmeifIwouldgotoGuangzhousoon.6.他情绪低落的时候，就拉小提琴。

Hewouldplaytheviolinwhenhewasinlowspirits.7.布朗夫人刚要开始说话，但是珍妮先说话了。

Mrs.Brownwasabouttospeak,butJennyspokefirst.8.警察让他赶紧走，但他不要。

Thepoliceaskedhimtoleaveimmediately,buthewouldn't.9.他不知道他以后会出名。

Hedidn'tknowhewastobecomefamouslateron.Self-evaluation1.Canyouusemodalverbscorrectly?2.Canyou