Unit+2+Let's+Celebrate+Grammar Vocabulary 高一英语外研版（2019）必修第二册

Unit2Period2Grammar&Vocabulary新课导入Whatmodalverbsdidwelearninunit1?Canyouretellthemeaningsofthem?

beableto:

havetheabilitytodosomethingdarenot:beafraidtodosomethinghaveto:benecessaryorgivestrongadvicetodosomethinghadbetter:giveadvicetodoornottodosomethingneedn’t:notbenecessarytodosomething课堂学习1.Lookatthesentencesfromthereadingpassageandanswerthequestions.a.ThatiswhyLettersfromFatherChristmas

couldbetheperfectbook...b.Thechildrenmusthavebeenveryexcitedastheyopenedit.c.…theymightnotreceivetheirpresentsiftheywerenotgood.1.Whatdothewordsinboldindicate:anorder,arequest,abilityorpossibility?2.Willthemeaningofsentence(a)changeifwereplace“could”with“must”or“might”?Thewordsinboldindicatepossibility.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”?Ifwereplace“could”with“must”,themeaningofsentence(a)willchange.Itmeansthespeakerisquitesureaboutthestatement.Ifwereplace“could”with“might’,themeaningofsentence(a)willremainmoreorlessthesame.“Could”and“might”inaffirmativesentenceshaveasimilarmeaningwhenindicatingpossibility.Nowlookformoresentenceswithmodalsinthereadingpassage.1.Whocoulditbefrom?2.Theletterswerealsobeautifullyillustrated—eachmusthavetakenitstrueauthor,Tolkien,alongtimetocomplete.3.Byexpressingloveforhischildreninsuchaspecialway,TolkienmayindeedhavebeentherealFatherChristmas.2.Rewritetheunderlinedsentencesintheconversation

usingcan/could,may/might,andmust.1.Iexpectyouarefeelingtirednow!2.It’spossiblyhim.3.I’msurethat’sLucy.4.Idon’tthinkthat’sLucy.5.Maybethey’refromourschool.Iexpectyoumustbetirednow!Itmay/might/couldbehim.ThatmustbeLucy.Thatcan’tbeLucy.Theymay/might/couldbefromourschool.(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.3.Lookatthepictureandmakeasmanysentencesaspossibleusingcan/could,may/mightandmust.Thegirlwithglassesmaybeverytiredtogetupsoearlyandcarrysomanybags.Themanwithawalletinhishandmightbeabitreluctanttopay.Thewomaninredmustbeveryexcitedtobuysomanythingsbecauseshewearsabigsmileonherface.Thecashiermightbefeelinguncomfortableasheissweatingalot.BlackFridayisoneofthebusiestshoppingdaysoftheyear.Storeshavebigsalesandopentheirdoorsveryearly.【can/could的用法】1.表示能力：can多用于指现在或将来，could多用于指过去。Eg:Icanplaybasketballnow,butIcouldn’twhenIwasyoung.现在我会打篮球了，但小时候我不会。2.表示请求和许可：could语气比can委婉，但回答时只能用can。Eg:Can/Couldyoulendmeahand?你能帮我一下吗？3.表示推测，意为“可能”。多用于否定句或疑问句。只是could语气较委婉，含义较不确定。Eg:—Canhebeinthereadingroomnow?—No,hecan’tbeinit.BecauseIsawhimintheofficejustnow.4.表示理论上或习惯上的可能性，意为“可能会”Eg:Joggingcanbeharmfultothehealth.慢跑可能对身体健康有害。【may/might的用法】1.表示推测（把握不大），意为“可能”，多用于肯定句和否定句。might比may可能性更小。Eg:Hemaycome,orhemaynot.他可能来，也可能不来。Eg:Itmay/mightrainthisafternoon.You’dbettertakearaincoatwithyou.今天下午可能会下雨。你最好带上雨衣。2.表示征求对方的许可或允许对方做某事（不用might）。Eg:—MayIcomein?—Yes,youmay/can./No,youcan’t.3.may用于祈使句，表示祝愿。Eg:May

yousucceed！祝你成功！4.“may/mightaswell+动词原形”表示“不妨，还不如”。Eg:Imay/mightaswellstartatonce.我还不如马上就动身1.表示十分肯定的推测，意为“一定；准是”。Eg:Bettymustbeinthenext

room.

Ican

hearher

talking

there.贝蒂肯定在隔壁房间。我能听见她在那儿讲话。2.表示命令或强烈的建议，意为“必须”。Eg:Allthestudentsmustobeytheschoolrules.所有学生必须遵守校规。3.表示说话人的一种态度，意为“偏要；硬要；偏偏”。Whymust

hegooutinthebadweather?为什么他偏要在这种坏天气出门？4.

mustnot表示禁止，意思是“一定不要”“不许”“不准”“不可以”等。Youmustn’tstopyourcarin

thebusy

street.你不能把车停在繁忙的路上。5.回答must问句时，肯定回答多用must，否定回答多用needn’t或don’thaveto.—MustIfinishmyhomework

beforeeight

o’clock?—Yes,youmust.（No,youneedn’t/youdon’thaveto）【must的用法】LanternFestivalcelebrationsUnderlinethewordsandexpressionsaboutcelebrationsduringtheLanternFestivalinthespeechbubblesandcompletethemindmap. Addanymoreyoucanthinkof.redenvelopeflowersscarfriceballsballonspostersholdalanternfairholdalanternriddlescompetitionletofffireworksdresschocolatedumplingsnoodlesbannerspaper-cuttingsparadehaveareuniondinnerDescribeafestivalcelebrationusingthewordsandexpressionsyouhavelearnt.Tocelebrate...,weoftendrink/eat...,give...asgifts,decoratewith...SampleTocelebratetheMid-AutumnFestival,weoftengettogethertohaveafamilyreuniondinner.Intheevening,weenjoythefullmoonwhileeatingvariouskindsofmooncakes,shaddock,grape

andsoon.Onthisfestival,peoplewillgiveeachotherexquisiteMid-Autumnmooncakegiftboxesasgifts.

Languagepoints1.Whatdothewordsinboldindicate:anorder,arequest,abilityorpossibility?(P17)request

n请求，要求

v（正式或礼貌地）要求；请求Eg:Themeetingwascalledinresponsetoarequestfromourmanager.Eg:TheEnglishteacherrequestsyoutodoyourhomeworkatonce[词汇拓展]atone’srequest/attherequestofsb应某人的要求makearequestforsth/that请求；要求...requeststhfromsb向某人请求某物requestsbtodosth要求某人做某事requestthatsb（should）dosth要求某人做某事（从句用虚拟语气）Itisrequestedthat...（should）dosth据要求....[即学即练]

单句语法填空(1)Iwrotethereport_____therequestofmymanager.(2)Visitorsarerequestednot__________(touch)theexhibits.(3)ItisrequestedthatMissYang________(give)aperformanceattheparty.attotouchgive2.Thelanternfairattractsalotofpeople,soit’soneofthebusiesttimesofyearforthetrafficpolice.(P18)灯会吸引了很多人,所以它是交警一年中最繁忙的时刻之一。

attract

v吸引,引起……的兴趣[词汇拓展]attractsb

tosb/sth