Unit2Let'scelebrate!Usinglanguage课件-高一外研版（2019）英语

Book2Unit2UsinglanguageContentsPart1Modals(2)Part2LanternFestivalcelebrationsPart3AfestivalinvitationPart1Modals(2)1.Marydidn’tcometoschoolyesterday.Shemaybeill.2.Thisclassroommustbebrightatnightbecausetherearesomanyelectricbulbs.3.Jackcan’tfinishhishomeworkforhehasbeenbusyhelpingtolookafterhislittlebrother.Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.

Modals(2)a.ThatiswhylettersfromFatherChristmascouldbetheperfectbook...b.Thechildrenmusthavebeenveryexcitedastheyopenedit.c....theymightnotreceivetheirpresentsiftheywerenotgood.1.Whatdothewordsinboldindicate:anorder,arequest,abilityorpossibility?Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.1.Lookatthesentencesfromthereadingpassageandanswerthequestions.Modals(2)Ifwereplace"could"with"must",themeaningofsentence(a)willchange.Itmeansthespeakerisquitesureaboutthestatement.Ifwereplace"could"with"might",themeaningofsentence(a)willremainmoreorlessthesame."Could"and"might"inaffirmativesentenceshaveasimilarmeaningwhenindicatingpossibility.Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.2.Willthemeaningofsentence(a)changeifwereplace"could"with"must"or"might"?

Modals(2)Ifwechange"must"insentence(b)into"could",itmeansthespeakerisnotsureaboutthestatement,andit'sonlyapossibility.Ifwechange"might"insentence(c)into"could",itmeansit'simpossibleforthechildrentoreceivetheirpresents.Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.3.Whathappensifwechange"must"and"might"insentences(b)and(c)into"could"?

Nowlookformoresentenceswithmodalsinthereadingpassage.

Modals(2)注意：常见的两种结构（时态）1.情态动词+动词原形(do/be)2.情态动词+完成式(havedone)Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.情态动词表推测:must,may,might,can,could

→→对目前动作或状态的推测对已发生动作的推测Modals(2)1.(1)must表示推测时，只能用于肯定句。Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.这个电脑卡住了，肯定出了问题。Thecomputerdoesn’twork.Theremust

besomethingwrongwithit.Tom看上去昏昏沉沉，他一定累了。Tomlookssleepy.Hemustbetired.e.g.Modals(2)Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.(2)must+havedone

表示对过去发生的事情作出的肯定判断他们在玩篮球，他们一定完成了作业。Theyareplayingbasketball;theymusthavefinishedtheirhomework.路是湿的。昨天晚上一定下雨了。Theroadiswet.Itmusthaverainedlastnight.Modals(2)Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.2.may/might(用于肯定推测，但语气比must弱)may/might表示推测时，只能用于陈述句，表示认为某一事情或许可能发生。用might指现在的时候语气较为委婉客气或更加不肯定。eg.她们明天可能会来上班。Theymaycometoworktomorrow.我问他我是否可以离开。IaskedhimifImightleave.might/mayhavedone,表示对过去发生的动作进行可能性推测。eg.Jack不在教室，可能去医务室了。Jackisn’tintheclassroom;he

mayhavegonetotheclinic.他或许已经从报纸上知道这个消息了。Hemighthavereadaboutthenewsinthenewspaper.Modals(2)Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.3.(1)can/could用于否定句或疑问句中表示说话人对发生的事情的怀疑、猜测、不肯定的语气。这个人不可能是玛丽，她生病在家呢。Itcan’tbeMary.Shehasfallenillandhasbeenstayingathome.没有人开门，他一定不在家。Nobodyanswerthedoor;hecan'tbeathome.*could比can语气更弱。Modals(2)Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.(2)

can/couldhavedone对过去发生行为的可能性进行推测:刚才我还看见Tom了，所以他不可能出国的。IsawTomjustnowsohecouldn’thavegoneabroad.门是锁着的，所以她不可能在家。Thedoorwaslocked.Shecouldn’thavebeenathome.Modals(2)Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.(3)can/couldhavedone

用于肯定句中，表示“本可以，本来可能已经”，表示对过去发生的事情做出的判断。你本来可以接受他的建议的。Youcouldhavefollowedhisadvice.我本来能够取得更好的成绩的。Icouldhavegotabettermark.

“couldhavedone”常表示与过去事实相反的状态，是虚拟语气。Modals(2)Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.Activity2:Rewritetheunderlinedsentencesintheconversationusingcan/could,may/mightandmust.

(Atafancydressparty.)Chris:Ispentagesputtingupalltheballoonsandflowerslastnight.Jean:Iexpectyouarefeelingtirednow!Chris:Yes,Iam.Look,thatguyisdressedasBatman.IsthatMike?Jean:It’spossiblyhim.Checkoutthatgirloverthere.I’msurethat’sLucy.Chris:No,Idon’tthinkthat’sLucy.Lucyisn’tthattall.Jean:Lookatthosetwoguysdressedaschickens!Oh,they’rewavingatus!Maybethey’refromourschool.Chris:Let’sgoandfindout.Modals(2)Lead-in:UnderstandthefollowingsentencesanLead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.dmakeinferenceaboutthewordsinbold.Lead-in:Understandthefollowingsentencesandmakeinferenceaboutthewordsinbold.Activity3:

Lookatthepictureandmakeasmanysentencesaspossibleusingcan/could,may/mightandmust.Example:Thewomaninredmustbeveryexcited.Modals(2)Somesentenceslikethese.Themanwithawalletinhishandmightbeabitreluctant(不情愿的)topay.Thewomanwithglassesmaybetiredtogetupsoearly.Thecashiermightbefeelinguncomfortableasheissweatingalot....Modals(2)Part2LanternFestivalcelebrationsActivity4:UnderlinethewordsandexpressionsaboutcelebrationsduringtheLanternFestivalinthespeechbubblesandcompletethemindmap.LanternFestivalcelebrationsLanternFestivalcelebrationsflowersriceballsballoonspostersascarfaredenvelopeholdalanternfairholdalanternriddlescompetitionletofffireworksLanternFestivalcelebrationsActivity5:Describeafestivalcelebrationusingthewordsandexpressionsyouhavelearned.Tocelebrate...,weoftendrink/eat...,give...asgifts,decoratewith...LanternFestivalcelebrationsActivity5:possibleversion:TocelebratetheMid-AutumnDay,weusuallyhaveafewdaysoff.Itisagreatoccasionforafamilytogettogether.Duringthefestival,weoftendrinksomewine.Besides,thereisakindoftraditionalChinesefood—mooncakes.Thewholefamilyusuallyadmirethemoonastheyeatmooncakes.Peopleoftenvisittheirfriendsandrelativeswithsomedeliciousmooncakesandsomefreshfruits.ThisfestivalisoneofthemostimportantfestivalsinChina,whichisheldtocelebratetheharvest,sonomatterhowbusytheyare,peopleusuallyhaveathoroughcleaninganddecoratetheirhousewithsomebeautifulpicturesaboutmoonandsoon.Part3AfestivalinvitationAfestivalinvitationListentotheconversationandcompletethesentenceswiththecorrectending.bcfAfestivalinvitationActivity7Listenagainandcompletethenotes.Occasion:a1_________________partyWhen:thefourth2_________________in3_________________Where:Tony’s4_________________Whattoeat:a5_____________withallthesidedishesand

homemade6_________________Whattobring:someflowersor7_________________Whattowear:8_________________ThanksgivingThursdayNovemberapartmentbigturkeyapplepiecandiesanythingyoulikeAfestivalinvitationListenagainandtalkaboutwhatthespeakerssaytoextendandacceptaninvitation.Areyoufree…?Wouldyouliketo…?It’sthetimeto…Youcanwear…Youcan…ifyoulike.I’dloveto…Itsoundsgreat!Whatelsewillwedo?DoIneedto…?AfestivalinvitationActivity8:Workinpairs.Actouttheconversationaboutextendingandacceptinganinvitation.S