Unit2Let'sCelebrate!GrammarVocabulary课件-高一英语

外研必修第二册Unit2Period2Grammar&Vocabulary

12Tounderstandthebasicusageofmodalverbstoexpressspeculation,enhanceawarenessofusingmodalverbs,andlearntocorrectlyusemodalverbsintherealcontext;Tosummarizerelevantexpressionsofvariouscelebrationactivitiesduringthefestivalandlearntodescribeafestivalcelebration.Activity1:Lookatthesentencesfromthereadingpassageandanswerthequestions.

a.ThatiswhyLettersfromFatherChristmas

couldbetheperfectbook...b.Thechildrenmusthavebeenveryexcitedastheyopenedit.c....theymightnotreceivetheirpresentsiftheywerenotgood.目标一:Tounderstandthebasicusageofmodalverbstoexpressspeculation,enhanceawarenessofusingmodalverbs,andlearntocorrectlyusemodalverbsintherealcontext.1.Whatdothewordsinboldindicate:anorder,arequest,abilityorpossibility?Thewordsinboldindicatepossibility.2.Willthemeaningofsentence(a)changeifwereplace“could”with“must”or“might”?Ifwereplace“could”with“must”,themeaningofsentence(a)willchange.Itmeansthespeakerisquitesureaboutthestatement.Ifwereplace“could”with“might”,themeaningofsentence(a)willremainmoreorlessthesame.“Could”and“might”inaffirmativesentenceshaveasimilarmeaningwhenindicatingpossibility.3.Whathappensifwechange“must”and“might”insentences(b)and(c)into“could”?Ifwechange“must”insentence(b)into“could”,itmeansthespeakerisnotsureaboutthestatement,andit'sonlyapossibility.Ifwechange“might”insentence(c)into“could”,itmeansit'simpossibleforthechildrentoreceivetheirpresents.Nowlookformoresentenceswithmodalsinthereadingpassage.Activity2:

GraspthebasicusageofmodalverbsCan/Could,May/Might,Must.

Can/Could1Themancanspeakthreeforeignlanguages.2—Canthenewsbetrue?—Itcan’tbetrue.3Accidentscan/couldhappenonrainydays.4Could/CanIborrowyourreferencebooks?5Howcanhebesocareless?6Youcan’tbetoocarefulwhiledriving.Telltheusageofmodalverbsindifferentsentences.(能力)(推测)(可能性，有时)(请示,允许)(惊讶)(无论……都不过分，越……越好)can/couldhavedone表示对过去发生行为的可能性进行推测刚才我还看见他了，所以他不可能出国的。Isawhimjustnowsohecouldn’thavegoneabroad.门是锁着的，所以她不可能在家。Thedoorwaslocked.Shecouldn’thavebeenathome.

e.g.“can/could+完成式”表推测的用法(许可)(可能)(祝愿)(may/mightaswell+do还是…为好，倒不如)(请求)might/mayhavedone表示对过去发生的动作进行可能性推测。Hemayhavegonetotheclinic.他可能去医务室了。Hemighthavereadaboutthenewsinthenewspaper.他可能已经从报纸上知道这个消息了。“May/Might+完成式”表推测的用法Must1①Wemustdoeverythingstepbystep.②—Mustwehandinourexercisestoday?—Yes,youmust./No,youneedn’t./don’thaveto.2Hemustbeill,helookssopale.3Smokingmustnotbeallowedintheoffice.4Mustyoumakesomuchnoise?(必须)(一定，必定)(禁止)(偏要，非得)“must+完成式”表推测的用法must+havedone表示对过去发生的事情作出的肯定判断e.g.Theyareplayingbasketball,theymusthavefinishedtheirhomework.他们在玩篮球，他们一定完成了作业。Theroadiswet.Itmusthaverainedlastnight.路是湿的。昨天晚上一定下雨了。Activity3:Readthedialogueandunderstandthemainideaofthispassage.

(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.Iexpectyouarefeelingtirednow!Youmustbetirednow!It’spossiblyhim.Itmay/might/couldbehim.I’msurethat’sLucy.ThatmustbeLucy.Idon’tthinkthat’sLucy.Thatcan'tbeLucy.Theymay/might/couldbefromourschool.Maybethey’refromourschool.Activity4:Rewritetheunderlinedsentencesintheconversationusingcan/could,may/mightandmust.

Activity5:

根据句意，用情态动词的正确形式填空。1.Idon'tknowwheresheis,she_____beinWuhan.2.Theroadiswet.It________________(rain)lastnight.3.Philip__________________________(behurt)seriouslyinthecaraccident.4.—Lindahasgonetowork,butherbicycleisstillhere.—She_____________________(go)bybus.5.Mike_______________(find)hiscar,forhecametoworkbybusthismorning.maymusthaverainedmay(might)havebeenhurtmay(might)havegonecan’thavefoundActivity6:Lookatthepictureandmakeasmanysentencesaspossibleusingcan/could,may/might

andmust.视频：黑色星期五的由来Makeasmanysentencesaspossible.Thewomaninredmustbeveryexcitedtobuysomanythings.Themanwithawalletinhishandmightbeabitreluctanttopay.Thewomanwithglassesmaybeverytiredtogetupsoearlyandcarrysomanybags.目标二:Tosummarizerelevantexpressionsofvariouscelebrationactivitiesduringthefestivalandlearntodescribeafestivalcelebration.ascarfaredenvelopericeballsballoonspostersholdalanternfairletofffireworksadresschocolatesdumplingsnoodlesbannersflowersparadehaveareuniondinnerWorkingroups.Activity2:Describeafestivalcelebrationusingthewordsandexpressionsyouhavelearnt.

Tocelebrate…,weoft