2017-2018学年人教课标高一英语必修3教学课件Unit1FestivalsaroundtheworldGrammar

Unit1Unit1Festivalsaroundtheworld情态动词用法Modalverbssuchasmay,might,will,would,can,could,shall,should,andmustareusedformanypurposes.Findthesentencesinthereadingpassagethatusemodalverbs.1Mostancientfestivalswouldcelebratetheendofcoldweather,…2Sometimescelebrationswouldbeheldafterhuntershadcaughtanimals.3Atthattimepeoplewouldstarveiffoodwasdifficulttofind…4…ortosatisfytheancestor,whomight

returneithertohelportodoharm.5FortheJapanesefestivalObon,peopleshouldgotocleangraves…6…thiswillleadtheancestorbacktoearth.7Itisnowachildren’sfestival,whentheycandressupandgo…8…thechildrenmightplayatrickonthem.9Festivalscanalsobeheldtohonour

famouspeople.10HarvestandThanksgivingfestivals

canbeveryhappyevents.11InEuropeancountries,peoplewillusuallydecorate…andwillgettogether…12Somepeoplemightwinawardsfortheir…13AttheSpringFestivalinChina,people…maygivechildrenluckymoneyinredpaper.14Thesecarnivalsmightincludeparades,dancinginthestreets…【观察】请仔细观察下列各组句子中情态动词的用法。1.

①WherecanBettybe?②AnnamayknowTom’saddress.③Ifyou’renotcareful,youcouldgetintotrouble.④IguessMr.Smithmightbelateforwork.情态动词用法小结⑤—Itmustbeourheadmaster.—No,itcan’tbehim.Hehasgoneto

Beijing.ItmaybeMr.Zhang.⑥Therescueteamshouldarriveby5o’clockthisafternoon.【归纳1】can,could,may,might,must,can’t,should都可表示_______。①can,may都可以表示“可能”（句①、②）。但要注意：在疑问句和否定句中表示“可能”时，多用____。may表“可能”，可用于一般时、进行时、完成时或完成进行时。如：Shemaybewaitingforyouintheentrancehall.可能性can②could,might表示推测时，并非表示过去，而表示可能性较弱（句③、④）。③must表示推测时，意为“肯定，一定”，表示否定时多用_____（句⑤）。④should用来表示一种估计的情况，可译为“按理应当……，估计……”（句⑥）。can’t2.

①Lucycanspeakfivelanguages.②Hesaidthathecoulddoanythingwewished.③Ihaven’tbeenabletoreadthatreportyet.【归纳2】can可表示能力，指某人具有某种知识和技能而能够做到某事，指现在或将来的情况（句①）；could表示过去具有某种能力（句②）。注意：当表示经过艰苦努力而成功地做到或设法做到某事时要用_________，而不用_____（句③）。beabletocan3.

①Can/MayIhelpyou?②MayIcomein?③CouldIhaveadrinkofwater?④Will/WouldyoupleasesendmeJack’saddress?⑤Nobodyshallthrowawayrubbishanywhereonthecampus!【归纳3】can表示许可或请求，可与____互换使用（句①）；表“_____”时may和might要比can和could更正式（句②），might和could则比may和can更婉转、更有礼貌（句③）；will/would表示征求意见或提出请求，would此时并不表示过去，而表示委婉语气（句④）；shall可以用于第二、第三人称，表示按照条约、规章等必须履行的义务（句⑤）。may许可4.

①Ask,ifyouwill,whotheowneris.②Johnwillfallasleepinchurch.③IwouldoftenasksuchquestionswhenIwasatschool.【归纳4】will表示现在的习惯或意愿（句①，②），would用于描述过去的习惯，意为“__________”（句③）。过去常常5.

①ShallIopentheenvelope?②Youshallbepunishedifyoubreaktherules.③Tellherthatsheshallhavethebiketomorrow.【归纳5】shall用于第一人称单复数，表示征求对方的意见或请求指点（句①）；shall可用于第二、三人称的陈述句中，表示______________________（句②、③）。允诺、警告、命令或威胁等6.

①Weshouldtakegoodcareofourchildren.②I’msurprisedthatapersonofyourintelligenceshouldbesofoolishastobelievesuchlies.【归纳6】should表示义务、责任或建议、劝告（句①）；表示惊奇、遗憾，意为“______”（句②）。竟然会7.

①Everycitizenoughttoobeythelaw.②Wetooklunchatnoon.It’s5o’clock.Yououghttobehungrybynow.【归纳7】oughtto表示_____（句①），也可表示推测（句②）。义务8.

①Allpassengersmustwearaseatbelt.②—MustIworkovertimetonight?—No,youdon’thaveto.③Youmustn’tmoveanyofthebooksinmybag.【归纳8】must表示“必须”，否定式是donothaveto或needn’t（句②）；mustn’t表示“_____”（句③）。禁止9.

①Idaren’thavecriticizedhiminthepast,butIthinkIdarenow.②IfyoudareswimacrosstheEnglishChannel,youwouldbeourschoolhero.【归纳9】dare表示“____”，可用于完成体（句①），也可用于虚拟语气中（句②）。敢10.

①Theplantisdead.Ishould/oughttohavegivenitmorewater.②Thecarandthevancollidedhead-oninthickfog.Bothdriverscouldhavebeenseriouslyhurtintheaccident.③Theweatherhereisverywarm.Weneedn’thavepackedthesewoolensweaters.【归纳10】“情态动词+havedone”结构常用来表示过去的情况。should/oughttohavedone表示“_____________________________”（句①）；couldhavedone可表示“过去有可能发生，但实际并没有发生”（句②）；needn’thavedone表示“过去不必做某事而实际上已经做了”（句③）。本应该做某事，而实际上没有做Readthesentencesbelowanddiscusswithapartnerhoweachofthesemodalverbsisbeingusedinthesituations.Usethesuggestionsintheboxtohelpyou.Somemayhavemorethanoneanswer.ability,advice,agreement,guessing,pasthabit,necessity,permission,possibility,prediction,promise,request1.canandcouldJimisn’tverygoodatmathsorscience,buthecanspeakEnglishverywell.Ourhistorytestwassolonglastweekthatnoonecouldfinishit.Itwasthelastdayofschool,buttheteachersaidthatwecouldnotleaveearly.abilityabilitypermissionThehuntershavebeenlostfordays.Theycouldstarve.CouldyoupleaseshowmethewaytoBeihaiPark?possibilityrequest2.mayandmightWhatawarddidyougetforthesportscompetition?MayIhavealook?Ourfootballteamdidn’tplayverywelltoday,butwemightdobettertomorrow.possibilitypermission/request3.willandwouldDuringtheSpringFestivaltimethewholefamilywillcomefordinner.Myunclewaspoorbutlikedfashion,sohewouldoftendressupasarichman.AreyoufreethisSaturday?Wouldyouliketojoinmyfamilyfordinner?promise/predictionpasthabitrequest4.shallandshouldTheharvestfestivalbeginsonSaturday.Weshallbetherewithourfriends.Whengoingbyplane,youshouldarriveattheairportatleastonehourearly.It’snearlytimeforclasstostart.Theteachershouldbeheresoon.promiseadviceprediction5.mustandcan’tWhenyoueatfishyoumustbecarefulwiththebones.WangFenghaswontheEnglishcompetitionthreetimes.Hemustbeverysmart.AmanlandedonMars?Youmustbejoking.Thatcan’tbetrue.advice/necessityguessingguessing从括号内选择合适的内容完成下面对话。1.

A:

It’sanationalholidaytomorrowsothere’snopublictransport.HowareJaneandSuegoingtogetthere?B:

Idon’tknow.It’llbedifficult.They________(might,must)takeataxi,butthey________(mightnot,couldnot)come.mightmightnot2.

A:

WhyisJohnwearingsunglasses?It’snotsunny.B:

Iguesshe________(may,must)havesomeproblemwithhiseyes.may3.

A:

We’revisitingthe

ForestPark

tomorrowmorning.________(Would,Will)youliketojoinus?B:

I’dloveto,butI________(cannot,couldnot)goouttomorrow.We’regettinganewsofaandthestore________(may,must)bedeliveringittomorrow.Wouldcannotmay4.

A:

Whoisthatmanleavingthelibrary?ItlookslikePeter.B:

It________(may,shall)behisbrother.Theyaresoalikethatpeoplesometimes