Unit+2+Let's+celebrate+Section+B+Using+language课件【高效备课精研+知识精讲提升】高中英语外研版（2019）必修第二册

新外研社高中英语必修二

Unit2Let’scelebrate

UsingLanguageGrammarLookatthesentencesfromthereadingpassageandanswerthequestions.aThatiswhyLettersfromFatherChristmascouldbetheperfectbook…bThechildrenmusthavebeenveryexcitedastheyopenedit.c…theymightnotreceivetheirpresentsiftheywerenotgood.01Discoveringtherules1)Whatdothewordsinredindicate:anorder,arequest,abilityorpossibility?Thewordsinredindicatepossibility.v.表明,显示n.请求,要求aThatiswhyLettersfromFatherChristmascouldbetheperfectbook…bThechildrenmusthavebeenveryexcitedastheyopenedit.c…theymightnotreceivetheirpresentsiftheywerenotgood.01Discoveringtherules2)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.aThatiswhyLettersfromFatherChristmascouldbetheperfectbook…bThechildrenmusthavebeenveryexcitedastheyopenedit.c…theymightnotreceivetheirpresentsiftheywerenotgood.01Discoveringtherules3)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’simpossibleforthechildrentoreceivepresents.aThatiswhyLettersfromFatherChristmascouldbetheperfectbook…bThechildrenmusthavebeenveryexcitedastheyopenedit.c…theymightnotreceivetheirpresentsiftheywerenotgood.01Discoveringtherules【情态动词】一、情态动词can与could的用法1.表示能力:can用来表示现在的能力,could表示过去的能力。e.g.MygrandmothercandosomeshoppingontheInternet,butshecouldn’tlastyear.我奶奶会网购了,但是去年她还不会。2.表示请求和许可:could语气比can委婉,但回答时只能用can。e.g.CanIgonow?现在我可以走了吗?e.g.—CouldIcometoseeyoutomorrow?——明天我可以来看你吗?

—Yes,youcan.(否定答语可用No,I’mafraidnot.)——是的,可以。3.表示推测,意为“可能”。多用于否定句或疑问句。e.g.—Canthenewsbetrue?——这个消息可能是真的吗?—Itcan’tbetrue.——它不可能是真的。e.g.Someoneisknockingatthedoor.Whocoulditbe?有人在敲门,他可能是谁呢?4.表示理论上或习惯上的可能性,意为“可能会”。e.g.ScotlandcanbeverywarminSeptember.九月的苏格兰有时会非常暖和。5.习惯用法“cannot...too...”表示“无论怎样……都不过分,越……越好”。有时cannot可用cannever替代。e.g.Wecannotthankyoutoomuchforwhatyou’vedoneforus.对于你们为我们所做的一切,我们怎么感激你们都不过分。选出下列句中can/could的含义。A.表示能力 B.表示推测C.表示请求和许可 D.表示理论或习惯上的可能性(1)Can/CouldIuseyourdictionary?

(2)AnEnglishmanwhocouldnotspeakItalianwasoncetravelinginItaly.

(3)Marycouldn’thavereceivedmyletter,otherwiseshewouldhaverepliedbeforenow.

(4)Everybodycanmakemistakes.

(C)(A)(B) (D)二、情态动词may与might的用法表示征求对方的许可或允许对方做某事(不用might)。e.g.—May/MightIplaythecomputergamesaftersupper?—Yes,youmay./No,youmustn’t/can’t.(否定句用mustn’t或can’t)——晚饭后我可以玩电脑游戏吗?——是的,可以。/不,不行。e.g.Youmaychoosewhateveryoulike.你喜欢什么就选择什么。2.表示推测(把握不大),意为“可能”,多用于肯定句。(might比may可能性更小)e.g.Thetrafficisveryheavythesedays.Imayarriveabitlate,socouldyousavemeaplace?这些天交通很拥挤,我可能会来晚一点,请你帮我留个位置好吗?e.g.Shemightgooutbecausethephonewasringingallthetime.她可能出去了,因为电话一直在响。?3.may用于祈使句,表示祝愿。e.g.Mayyoureturnsoon.愿你早日归来。4.“may/mightaswell+动词原形”表示“不妨,还不如”。e.g.It’snotveryfar,sowemay/mightaswellgoonfoot.那地方不太远,所以我们还是走着去吧。选出下列句中may/might的含义。A.表示许可B.表示推测C.表示祝愿(1)Ithinkhemaycometomorrow.(2)Mayyougoodluck!

(3)MayIwatchTVnow?

(B)(C)(A)三、情态动词must的用法1.表示“必须”,语气比should,oughtto强烈。其否定形式为mustn’t(不准;禁止)。e.g.Youmustn’tdothat,becauseyoumustkeepyourword.你不能那么做,因为你得遵守诺言。表示肯定的推测时：情态动词语气从弱到强依次为might→may→could→can→must；【要点提示】以must开头的一般疑问句的肯定回答中要用must,否定回答中要用needn’t/don’thaveto。e.g.—MustIfinishthepapertoday?—Yes,youmust./No,youneedn’t/don’thaveto.——今天我必须完成论文吗?——是的,你必须。/不,你不必。2.表示有把握的肯定推测,只能用在肯定句中,意为“一定;准是”;在否定句、疑问句中要用can’t代替。e.g.Youhaveworkedhardallday.Youmustbetired.你辛苦工作一整天了,一定累了。(对现在情况的推测判断)e.g.Youmusthavereadwidelyandputalotofworkintoit.你一定进行了广泛阅读并投入了大量的工作。(对过去情况的推测)3.表示感情色彩,意为“偏偏;偏要”,常指令人不快的事情。e.g.ThecarmustbreakdownjustwhenIwasabouttostart.我正要出发时车偏偏抛锚了。4.mustnot表示禁止,意思是“不准”“不许”“千万不要”等。e.g.Youmustn’tdriveintoastreetwitha“noentry”sign.你切勿把车驶进有“不得进入”标示的街道。选出下列句中must/mustn’t的含义。A.表示“必须”B.表示“一定;准是”C.表示“偏要;硬要;偏偏”D.表示“禁止,不许,不准”(1)Youmustn’tfirewithoutmysignal.

(2)Whymustyoualwaysinterruptme?

(3)Youmustbehungryafterallthatwalking.

(4)YoumustpracticeyourspokenEnglishifyouwanttoimprove.

(D)(C)(B)(A)四、情态动词+havedone“can/could/may/might/must+havedone”表示对过去事情的推测。各情态动词的表示推测的用法如下表:形式用法musthavedone过去肯定做过can’t/couldn’thavedone肯定没做过(否定句)can/could+主语+havedone?可能做过吗(疑问句)may/mighthavedone或许/可能做过某事Fromwhatyousaid,shemusthavetoldyouallaboutit.

从你所说的来看,她一定把一切都告诉你了。(只能用在肯定句中)e.g.Hecan’thavefinishedthetaskinsuchashorttime.他不能在如此短的时间内完成这项任务。(只能用在否定句)e.g.Canhehavetoldyouthesecretyesterday?昨天他可能告诉过你那个秘密吗?(用在疑问句)用适当的情态动词填空。(1)He_____________haveforgottenit.Itoldhimjustnow.(2)It’stoolate;Ithinkhe__________havegonetobed.

(3)Marywenthome.She_____havefinishedherwork.can’t/couldn’tmay/mightmust

情态动词+havedone”表示虚拟语气的用法:couldhavedone表示本来能够做某事但没做(用于肯定句中)should/oughttohavedone表示本应该做某事但没做,其否定式表示本不该做但却做了mighthavedone表示本可以做某事但没做needn’thavedone表示本没有必要做某事但做了e.g.Youshouldn’thavetoldherthetruth.你本不该告诉她真相。e.g.Icouldhavegivenhimsomehelp,butIwasbusythen.我本能够给他一些帮助,但是当时太忙了。e.g.Youneedn’thavecome,itisSunday.你本没必要来,今天是星期天。Ⅰ.用适当的情态动词填空1.Where_________youhavegoneto?I________findyoujustnow.

2.You____takewhateveryoulike.3.You__________aswellstaywhereyouareanditiseasyformetoseeyou.4.—_____Ihandinmyhomeworktonight?—No,you_______.You____handitintomorrow.5.HespeaksEnglishfluently.He_____havelearnedEnglishbefore.6.MayIcomein?Yes,you____.can/couldcouldn’tmaymay/mightMustneedn’tcanmustmay7.You_____betoocarefultocrosstheroad.8.Generallyspeaking,itiswarminspringbutit____beverycoldinsomebadweather.9.____ourfriendshiplastlong.

10.Why_____yousmokeinthemeetingroom?can’tcanMaymustⅡ.完成句子1.Itiscloudyandcold.It_________laterthisafternoon.

天气阴冷,今天下午可能会下雪。2.Don’tscoldhimforhismistakeagain.Anybody_________________.

不要因为他的错误再批评他了,任何人都可能犯错误。3.You____________________hereoryouwillbefined.

你禁止把车停在这里,否则你会被罚款的。4.Theoldmanissotiredthathe_______anyfarther.

这位老人非常累,以至于再也不能走得更远了。maysnowcanmakemistakesmustn’tparkyourcarcan’tgo5.—MayIuseyourruler?—Sorry,you_____.——我可以用用你的尺子吗?——抱歉,你不能。6.—________________howtogettothehospital?

——你能告诉我怎么到达医院吗?—Ofcourse,I____.——当然能。7.________________everyday!

愿你天天快乐!can’tCouldyoutellmecanMayyoubehappy8.Whenyouaretired,you__________________andhavearest.当你累了,不妨坐下来休息一下。

9.Heisveryfriendlytoeveryonebutsometimeshe___________________.

他对每个人非常友好,但是有时他很固执。10.Heisagoodstudentbuthe___________playcomputergames.他是个好学生,但是他偏偏喜欢玩电脑游戏。

mayaswellsitdowncanbeverystubbornmustliketo

Lookatthepictureandmakeasmanysentencesaspossibleusing

can/could,may/might

andmust.(P17)Underline

thewordsandexpressionsaboutcelebrationsflowers,ascarfaredenvelopericeballsballoonsholdalanternfairholdalanternriddlescompetition;letofffireworkspostersCompletethemindmapListening&speakingBeforelisteningTraditionally,peoplesendwritteninvitationsforformaleventssuchasweddings.Similarly,theseinvitationsareansweredinwriting.Formoreinformalevents,however,spokeninvitationsaremorecommon.BeforelisteningRemembertoarriveontimeifyouaccepttheinvitation.Dependingonregionalcustoms,itmaybeacceptabletobe15to30minuteslate.Itisnotadvisabletobeearly,asthehostmaynotbeready.Ifyoureceiveawritteninvitationforformalevents,whichofthefollowingwouldbetheappropriatereply?A.Makingaphonecall.B.Sendingatext.C.Writingaletter.A.Arrivingontime.B.Arrivinghalfanhourearlier.C.Arrivingtwentyminuteslate.Whichofthefollowingbehaviorsismostlikelytobeinappropriatewhenyouvisitsomebody?While-listening【P19】Listentotheconversationandcompletethesentenceswiththecorrectending.While-listening1.Tonywouldliketo____.2.Hugowantstofindout_____.3.Onthatdaytheywill_____.bcfabcdefgotoHugo’sapartmenttogivethanksinviteHugotohisapartmenttocelebrateThanksgivingwhatheneedstobringtothepartygoshoppingtogetherandwatchtheparadewatchanAmericanfootballgameonTVwhatheshouldsayatthepartyOccasion:a1._____________partyWhen:thefourth2._____________in3._____________Where:Tony’s4.______________ThanksgivingThursdayNovemberapartmentWhile-listening:Listenagainandcompletethenotes.Whattoeat:a5._____________withallthesidedishesandhomemade6.___________Whattobring:someflowersor7._____________Whattowear:8.______________bigturkeyapplepiecandiesanythingyoulikeWhile-listening:Listenagainandcompletethenotes.SpeakingWorkinpairs.Actouttheconversationaboutextendingandacceptinganinvitation.►

StudentA:TurntoPage81.►

StudentB:TurntoPage85.Areyoufree…?Wouldyouliketo…?It’scelebratedfor…on…Youcanwear…Youcan…ifyoulike.Yes,I’dloveto…Whendoes…DoIneedto…?ShouldIbring…withme?UsefulexpressionsLanguagePointsp.17Whatdothewordsinboldindicate：anorder，arequest，abilityorpossibility?

indicate

v.表明，显示；象征，暗示 Thesefiguresindicatetomethatthecompanyisinserioustrouble.Researchindicatesthattheeatinghabitischangingfast.【单词积累】indicationn.迹象；标示givesb.indication向某人表明Thereareclearindicationsthat...有明显的迹象显示……（1）Theblackcloudsaregathering，which

（indicate）thatitwillrainsoon.（2）Thereisagreatdealofevidence

（indicate）thatmusicactivitiesengagedifferentpartsofthebrain.◆完成句子（3）Accordingtoanoldproverb，aredskyatnightoften____________________（预示着好天气）thenextday.（4）

（有明显的迹象显示）theeconomyisimproving.indicatesindicatingindicatesfineweatherThereareclearindicationsthatp.17Whatdothewordsinboldindicate：anorder，arequest，abilityorpossibility?

request

n.&v.（1）n.请求，要求 LiMingmadearequestforacomputerfromhisparents.（2）v.请求，要求 Youarerequestednottosmokeintherestaurant.Thewomanrequestedthattheyspeakinawhisperbecauseababywassleeping.

在request后的名词性从句中要用虚拟语气，从句谓语用“should+动词原形”，should可以省略。后接名词性从句，从句谓语用“（should+）动词原形”的动词：一个“坚持”：insist两道“命令”：order，command四条“建议”：suggest，propose，advise，recommend四点“要求”：demand，desire，request，require（1）You’dsoundalotmorepoliteifyoumake

requestintheformofaquestion.（2）Theroadworkswerefinishedaheadoftime

thecompany’srequest.（3）Visitorsarerequestednot

（touch）theexhibits.（4）Don’trespondtoanye-mails

（request）personalinformation，nomatterhowofficialtheylook.◆完成句子（5）Thestudywascarriedout

（应……的要求）thechairman.（6）Werequestedthatthenextmeeting

（星期五举行）.（7）Theyinsistedthateveryone

（都来参加聚会）.

aattotouchrequestingattherequestof（should）beheldonFriday（should）cometothepartyOh，they’rewavingatus!wave

v.&n.（1）v.挥手，招手waveto/atsb.向某人挥手搭配

wavesb.goodbye=wavegoodbyetosb.向某人挥手道别wavesth.about/around挥动……Whydidyouwaveathim?MymotherwascryingasIwavedhergoodbye.我向母亲挥手告别时她哭了。（2）n.波浪；（行为、活动或感情的）一阵；风潮Thewindmadelittlewavesonthepond.风吹得池水起了涟漪。awaveofviolence/attacks一波暴力/攻击事件awaveofpanic/relief/sympathy一阵恐慌/宽慰/同情◆单句语法填空（1）Wewaved

ourteacherandhewavedback.（2）Attherailwaystation，themotherwavedgoodbye

herdaughteruntilthetraindisappearedfromview.（3）Thestrangerspokerapidly，

（wave）hisarmsabout.◆完成句子（4）

（一阵恐慌）spreadthroughthecrowd.to/attowavingAwaveofpanicThelanternfairattractsalotofpeople...attractv.吸引，引起……的兴趣attractsb.tosth.把某人吸引到某事上来搭配

beattractedtosb.爱慕某人，为某人所吸引attractone’sattention/interest吸引某人的注意/兴趣Thegovernmentistryingtoattractindustrytothearea.Herideashaveattractedalotofattentioninthescientificcommunity.【单词积累】（1）attractiveadj.有吸引力的beattractivetosb.对某人有吸引力（2）attractionn.吸引；有吸引力的事atouristattraction旅游景点 ◆单句语法填空（1）Eventheyoungestchildrenintheclass

（attract）bythestory.（2）Whatattractedmemost

thejobwasthechancetotravel.（3）Thenaturalbeautyisn’t

（attract）tothem.（4）TheGreatWallisoneofthegreatest

（attract）allovertheworld.◆完成句子（5）InUnderwaterWorld，nothing

（吸引我的注意力）morethanthepenguins. wereattractedtoattractiveattractionsattractedmyattentionTocelebratetheLanternFestival，wedecorateourwindowswithballoonsandposters.decorate

v.装饰，布置，美化；装修，装潢 DuringtheNationalDayholiday，allthestreetsaredecoratedwithcolourfulflags，flowersandballoons.decoratetheChristmastrees装饰圣诞树decoratethehouse装修房屋【单词积累】decorationn.装饰，装潢；（常用复数）装饰物 ◆单句语法填空（1）Beforemovingintothenewflat，hehadit

（decorate）completely.（2）Atmybirthdayparty，Ireceivedapencilbox

（decorate）withsomecartoonpicturesonthetop.（3）Withitssimple

（decorate），themainbedroomisapeacefulplace.decorateddecorateddecorationWe’llholdalanternriddlescompetition，petition

n.比赛，竞赛；竞争 She’senteredacrosswordcompetition.Weareincompetitionwithfourothercompaniesforthecontract.【单词积累】（1）competev.参加比赛；竞争 competein参加……比赛competewith/against与……竞争 competefor为……而竞争（2）competitorn.参赛者；竞争者（3）competitiveadj.竞争的；有竞争力的 occasion

n.场合，时刻 IregretthatIwillnotbewithyouonsuchanimportantoccasion.我很遗憾在如此重要的时刻不能和你在一起。special/formaloccasions特殊/正式场合Hehas，onoccasion，madeasmallmistake.他有时犯点小错误。 【误区警示】occasion作先行词且定语从句中缺少状语时，定语从句的关系词要根据occasion的含义来定：表示“（特定的）时刻”时，关系词用when；表示“（仪式、庆典等）重大场合”时，关系词用where。【单词积累】occasionaladj.偶尔的，偶然的occasion