Unit+2+Let's+Celebrate+Grammar Vocabulary 高一英語外研版（2019）必修第二冊

Unit2Period2Grammar&Vocabulary新課導入Whatmodalverbsdidwelearninunit1?Canyouretellthemeaningsofthem?

beableto:

havetheabilitytodosomethingdarenot:beafraidtodosomethinghaveto:benecessaryorgivestrongadvicetodosomethinghadbetter:giveadvicetodoornottodosomethingneedn’t:notbenecessarytodosomething課堂學習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多用于指現(xiàn)在或將來，could多用于指過去。Eg:Icanplaybasketballnow,butIcouldn’twhenIwasyoung.現(xiàn)在我會打籃球了，但小時候我不會。2.表示請求和許可：could語氣比can委婉，但回答時只能用can。Eg:Can/Couldyoulendmeahand?你能幫我一下嗎？3.表示推測，意為“可能”。多用于否定句或疑問句。只是could語氣較委婉，含義較不確定。Eg:—Canhebeinthereadingroomnow?—No,hecan’tbeinit.BecauseIsawhimintheofficejustnow.4.表示理論上或習慣上的可能性，意為“可能會”Eg:Joggingcanbeharmfultothehealth.慢跑可能對身體健康有害?！緈ay/might的用法】1.表示推測（把握不大），意為“可能”，多用于肯定句和否定句。might比may可能性更小。Eg:Hemaycome,orhemaynot.他可能來，也可能不來。Eg:Itmay/mightrainthisafternoon.You’dbettertakearaincoatwithyou.今天下午可能會下雨。你最好帶上雨衣。2.表示征求對方的許可或允許對方做某事（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+動詞原形”表示“不妨，還不如”。Eg:Imay/mightaswellstartatonce.我還不如馬上就動身1.表示十分肯定的推測，意為“一定；準是”。Eg:Bettymustbeinthenext

room.

Ican

hearher

talking

there.貝蒂肯定在隔壁房間。我能聽見她在那兒講話。2.表示命令或強烈的建議，意為“必須”。Eg:Allthestudentsmustobeytheschoolrules.所有學生必須遵守校規(guī)。3.表示說話人的一種態(tài)度，意為“偏要；硬要；偏偏”。Whymust

hegooutinthebadweather?為什么他偏要在這種壞天氣出門？4.

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

thebusy

street.你不能把車停在繁忙的路上。5.回答must問句時，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請求，要求

v（正式或禮貌地）要求；請求Eg:Themeetingwascalledinresponsetoarequestfromourmanager.Eg:TheEnglishteacherrequestsyoutodoyourhomeworkatonce[詞匯拓展]atone’srequest/attherequestofsb應某人的要求makearequestforsth/that請求；要求...requeststhfromsb向某人請求某物requestsbtodosth要求某人做某事requestthatsb（should）dosth要求某人做某事（從句用虛擬語氣）Itisrequestedthat...（should）dosth據(jù)要求....[即學即練]

單句語法填空(1)Iwrotethereport_____therequestofmymanager.(2)Visitorsarerequestednot__________(touch)theexhibits.(3)ItisrequestedthatMissYang________(give)aperformanceattheparty.attotouchgive2.Thelanternfairattractsalotofpeople,soit’soneofthebusiesttimesofyearforthetrafficpolice.(P18)燈會吸引了很多人,所以它是交警一年中最繁忙的時刻之一。

attract

v吸引,引起……的興趣[詞匯拓展]attractsb

tosb/sth