Unit1FoodforthoughtUsinglanguageⅠP5課件高中英語(yǔ)

Unit1FoodforthoughtUsinglanguage

ⅠP51.summarizethebasicusageofthemodalverbs:beableto,dare,haveto,hadbetterandneed;2.usethesemodalstocompletethetipsforgoodtablemanners;3.useasmanymodalverbstointroduceChinesetablemannersaspossible.

Attheendoftheclass,you’llbeableto:RevisionUnderlinethesentencesbelowinthereadingpassage.a...Iwasabletoholdaknifeandforkandchopsticks!b...ButtherearestillsomedishesthatDaddare

nottry

evenaftermanyyearsofmarriagetomymother.c...MumandIjusthavetofindawaytoget

himintothe

kitchen!d...we’dbetternoteattoomuchroastfood

asitmaymake

ussufferfromheatinsideourbodies,...e

“Youneedn’ttryitifyoudon’twantto,”Mumsaid,...PresentationNowtalkaboutthefunctionofmodals.Thenmatchthem.1beafraidtodosomething2notbenecessarytodosomething3giveadvicetodoornottodosomething4benecessaryorgivestrongadvicetodosomething5havetheabilitytodosomethinga-5b-1c-4d-3e-2

beafraidtodosth.notbenecessarytodosth.Practicebenecessarytodosth.havetheabilitytodosth.giveadvicetodosth.don’thavetheabilitytodosth.Readandmatch:SummaryModals情態(tài)動(dòng)詞(1)

情態(tài)動(dòng)詞（Modals）本身具有一定的詞義，不能獨(dú)立作謂語(yǔ)，必須和動(dòng)詞原形一起構(gòu)成謂語(yǔ)。情態(tài)動(dòng)詞雖然數(shù)量不多，但用途廣泛。常用的情態(tài)動(dòng)詞包括can(could),may(might),will(would),shall(should),must,need,dare,hadbetter,oughtto,usedto等。

beableto后接動(dòng)詞原形，表示某人做某事的能力，可用于大多數(shù)時(shí)態(tài)。用于過(guò)去時(shí)態(tài)時(shí)，還可以表示“某人過(guò)去或當(dāng)時(shí)成功地做了某事”。例如：IwillbeabletospeakJapaneseinanotherfewmonths.

再過(guò)幾個(gè)月，我就能講日語(yǔ)了。Theywereabletoescapefromthebuildingwhenthefirebrokeout.

火災(zāi)發(fā)生時(shí)，他們?cè)O(shè)法從那棟建筑里逃了出去。幾種常見(jiàn)情態(tài)動(dòng)詞的用法：beableto表示“能力”時(shí)，和can的用法相似。但也有區(qū)別：beableto有多種時(shí)態(tài)，如:was/wereableto,will/shallbeableto,have/hasbeenableto等,而can只有兩種時(shí)態(tài)，即can和could。beableto強(qiáng)調(diào)通過(guò)努力而獲得的能力，而can則強(qiáng)調(diào)自身已具有的能力。如：

ShecansingthesonginEnglish.她能用英語(yǔ)唱這首歌。HewillbeabletosingthissonginEnglishinafewminutes,too.幾小時(shí)之后，他也能用英語(yǔ)唱這首歌。【beableto與can的辨析】beableto強(qiáng)調(diào)一種結(jié)果，而can只強(qiáng)調(diào)一種可能。如:Luckily,hewasabletoescapefromthebigfireintheend.幸運(yùn)的是，他終于逃出了大火。Ifhegothereafewhoursearlier,Icouldsavehim.要是他早幾小時(shí)來(lái)，我還能救他。beableto的否定形式是在be后面直接加not，即benotableto，如：

Thekidisnotabletowrite.

這孩子不會(huì)寫(xiě)字。But

we

may

not

be

able

to

do

thisfor

every

scenario.但是我們不能每一種場(chǎng)景下都這么做。dare作情態(tài)動(dòng)詞時(shí)，主要用于否定句、疑問(wèn)句和條件從句中，一般不用在肯定句中。

如：HowdareyousayI’munfair?

你怎么敢說(shuō)我不公平？情態(tài)動(dòng)詞dare可以有過(guò)去式dared，但也可以直接用dare表示過(guò)去式，或后接動(dòng)詞完成式，如：Motherdare(d)nottellfathershe’dgivenawayhisoldjacket.母親不敢告訴父親她把他的舊上衣送人了。2.dare＆needdare用作實(shí)義動(dòng)詞，有時(shí)態(tài)、人稱(chēng)和數(shù)的變化。所不同的是，作實(shí)義動(dòng)詞時(shí)，在肯定句中dare后面通常接帶to的不定式；在否定句和疑問(wèn)句中，dare后可接帶to或不帶to的不定式。如：a.Iwonderhowhedares(to)saysuchthings.我納悶他怎么竟敢說(shuō)出這樣的話(huà)來(lái)。b.Hedoesnotdare(to)answer.他不敢回答。need表示“需要”或“必須”，作情態(tài)動(dòng)詞時(shí)，用于否定句和疑問(wèn)句中在肯定句中一般用must,haveto,oughtto或should代替。如：Youneedn’tcomesoearly.你不用這么早來(lái)。need作為行為動(dòng)詞，可用于肯定句、否定句和疑問(wèn)句中，其后可接名詞、代詞、動(dòng)名詞或帶to的動(dòng)詞不定式為其賓語(yǔ)。如：Youneedtopracticereadingaloudeveryday.needn’t后接完成式可以表示過(guò)去做了一件本來(lái)不必要做的事情,如：

-Didyouanswertheletteryesterday?-Yes,Idid.-Butyouneedn’thaveansweredit.needn’t對(duì)其它情態(tài)動(dòng)詞的回答:--ShallItellJohnaboutit?--No,youneedn’t/don’thaveto.--Mustwedoitnow?--No,youneedn’t/don’thaveto.注意對(duì)need問(wèn)句的回答:--NeedIfinishtheworktoday?--Yes,youmust./No,youneedn’t./No,youdon’thaveto.haveto和must的意義相近，只是must側(cè)重表示說(shuō)話(huà)人的主觀(guān)看法，而haveto則表示客觀(guān)需要，如：

Imuststudyhard.YouhavetohandinyourcompositionsbeforenextMonday.have

to

的否定形式是don’thaveto,相當(dāng)于needn’t，如：

Theydon’thavetobuyacomputeratpresent.他們目前沒(méi)有必要買(mǎi)電腦。haveto有人稱(chēng)、數(shù)和時(shí)態(tài)的變化，如：Theyhadtospeedup,fortheweatherturnedterrible.Hehastostayathomebecauseofillness.3.havetohadbetter后接動(dòng)詞原形，意為“最好”，用于現(xiàn)在時(shí)和將來(lái)時(shí)，可用于一切人稱(chēng)，沒(méi)有任何詞形變化。hadbetter的否定式是在其后加not,疑問(wèn)式是把had和not提前，例如：a.You’dbettersithereandhavearest.你最好坐在這兒休息一下。b.Shehadbetternottellliesanymore.她最好再也別撒謊了。c.Hadn’tthedoctorbetterseehim?醫(yī)生是不是去看看他比較好？4.hadbetterProductionWhenwetalkaboutthefood,goodtablemannersaremuchimportant.Howtolaythetable01Tablemanners02Howtouseforksandknives03Howtobehaveatthetable04Howtoeat05HowtotoastanddrinkWhilegoingonyourfirsttriptotheUKisexciting,newanddifferentcustomscanalsobeconfusing.Tablemannersarenoexception.Butdon’tworry-herearesome

tips:You_______waituntileveryoneelsehasbeen

servedbeforeyoustarteating.Sometimestherearesomanyknivesandforksthatyou_______pickthemupincaseyougetitwrong.Thetrickistostartwiththeonesontheoutside.CompletethetipsforgoodtablemannerswiththecorrectformofthemodalsinActivity1.havetodarenotWhenyoufinishyourmeal,you_________placetheknifeandforktogetheronyourplatewiththehandlesatthefouro’clockposition.Tablemanners,however,candifferindifferentsituations.Forexample,you______useaknifeandforkwheneatingahamburgerorpizza.Justremember:wheninRome,doastheRomansdo,andyouwill________enjoythelocalcuisine!CompletethetipsforgoodtablemannerswiththecorrectformofthemodalsinActivity1.hadbetterneedn’tbeabletoHomework:WriteashortpassagetointroduceChinesetable