Unit1FoodforthoughtUsinglanguage語(yǔ)法課件高中英語(yǔ)

外研必修第二冊(cè)UsinglanguageUnit1Foodforthoughta...Iwasabletoholdaknifeandfork-andchopsticks!bButtherearestillsomedishesthatDaddarenottryevenaftermanyyearsofmarriagetomymother.c...MumandIjusthavetofindawaytogethimintothekitchen!d...we’dbetternoteattoomuchroastfoodasitmaymakeussufferfromheatinsideourbodies,...e

“Youneedn’ttryitifyoudon’twantto,”Mumsaid,...Lookatthesentencesfromthereadingpassage.Thinkandworkoutthemeaningsofthewordsunderlined.ObserveanddiscoverModalverbs(情態(tài)動(dòng)詞)

canbeusedtoexpressthespeaker’smeaningofpossibility,permission,obligationandadvice,ability,etc.beafraidtodosomethinghavetheabilitytodosomethingbenecessaryorgivestrongadvicetodosomethinggiveadvicetodoornottodosomethingnotbenecessarytodosomethingNowlet’slearnmoreexamples.What'sthemeaningsofthewordscircled?1.ButthenIfiguredI'dbetterjustgoalloutandseewhathappens.(必修一U1P9)2.Alistairhadtochoose—brotherlylove,orachancetowintherace(必修一U3P32)3.Theyhavefoundoutthatthemonarchisabletotellthetimeofday.(必修一U5P50)4.Asanaturephotographer,Ihavetobravetheelements.(必修一U5P56)Fillintheblankswithappropriatewords.1.ButthenIfiguredI___________justgoalloutandseewhathappens.(必修一U1P9)2.Alistair_________choose—brotherlylove,orachancetowintherace(必修一U3P32)3.Theyhavefoundoutthatthemonarch____________tellthetimeofday.(必修一U5P50)4.Asanaturephotographer,I__________bravetheelements.(必修一U5P56)hadbetterhadtoisabletohavetogoReadyFocuson基本用法Modalverbsbeableto1dareneed&needn’thavetohadbetter23451.beableto

beableto

后接動(dòng)詞原形，表示能力時(shí)和can意思相同，可用于大多數(shù)時(shí)態(tài)，可與其他情態(tài)連用。①Heisableto/canwritemusic.

②Willyoubeabletocometomorrow

③Ihaven’tbeenabletofinishthebook.④Theywereabletoescapefromthebuildingwhenthefirebrokeout.他會(huì)作曲。明天你能來(lái)嗎？我還沒(méi)能看完那本書(shū)。火災(zāi)發(fā)生時(shí)，他們?cè)O(shè)法從那棟建筑里逃了出去。beableto

用于過(guò)去時(shí)態(tài)時(shí)，可以表示“某人過(guò)去或當(dāng)時(shí)成功地做了某事”。2.dare①Hedarenotsaywhathethinks.

②Darehesaywhathethinks

③Ifhedaresaywhathethinks,itisgood.④Heneverdaredsaywhathethought.他不敢說(shuō)出他的想法。他敢說(shuō)出他的想法嗎？如果他敢說(shuō)出他的想法就好。他從不敢說(shuō)出他的想法。a)dare

作情態(tài)動(dòng)詞，后接動(dòng)詞原形，表示“敢”，沒(méi)有人稱(chēng)和數(shù)的變化，不用于肯定句，主要用于否定句、疑問(wèn)句、條件句等。否定句形式：darenot(daren’t)疑問(wèn)句形式：DareI/he/she...①Theydaretoswimacrosstheriver.

②Doeshedare(to)swimacrosstheriver

③Hedoesn’tdare(to)swimacrosstheriver.他們敢游過(guò)河去。他敢游過(guò)河去嗎？他不敢游過(guò)河去。b)

dare

作實(shí)義動(dòng)詞，表示“敢……”，有人稱(chēng)和數(shù)的變化，不受句式限制，后跟動(dòng)詞不定式，即daretodosth.，在否定句或疑問(wèn)句中的“to”可以省略。3.need＆needn’t①Needhegotherenow

②Heneedn’tgotherenow.

③Youneeddoitbutonce.④Allyouneeddoistocallhim.需要他現(xiàn)在過(guò)去嗎？他只需做一次就行。a)

need

作情態(tài)動(dòng)詞，后接動(dòng)詞原形，表示“需要……”，沒(méi)有人稱(chēng)和數(shù)的變化，不用于肯定句，主要用于否定句、疑問(wèn)句、條件句等。你只需要給他打就行。他不需要現(xiàn)在過(guò)去。當(dāng)need作情態(tài)動(dòng)詞，與all,but,before等暗含否定意義條件時(shí)，可用于肯定句。b)

needn’thavedone

表示“過(guò)去本不必做卻做了的事”。①Wespentahellofalotofmoneythatweneedn'thavespent.

②

Heneedn'thavegonetohospital,buthewentjusttoreassurehimself.我們花了很多本來(lái)不需要花的錢(qián)。他本不必去醫(yī)院的，去了只是想讓自己放心點(diǎn)。4.havetohaveto表示因客觀環(huán)境或事態(tài)的迫使而“不得不……；必須……”，可用于各種時(shí)態(tài)，有人稱(chēng)和數(shù)的變化，還可與其他情態(tài)動(dòng)詞連用，否定式為don’t/doesn’t/didn’thaveto，相當(dāng)于needn’t。①Wemayhavetoputofftheplan.

②Didshehavetopayafine③You'regoingtohavetolearntogiveandtake.我們可能不得不推遲計(jì)劃。她非得交罰款嗎？你們必須學(xué)會(huì)互相遷就。1.haveto和must的區(qū)別must表示說(shuō)話人主觀上認(rèn)為必須做的事以及職責(zé)義務(wù)等：haveto表示客觀情況造成的必須要做的事：Imustgetupearlytomorrow.TherearemanythingsIwanttodo.Ihavetogetupearlytomorrow.Thetrainleavesat7:30.2.don’thaveto和mustn’t的區(qū)別must用于否定形式表示“禁止，一定不要”：haveto用于否定形式表示“沒(méi)必要”：Youmustn’ttellothers.=Don’ttellothers.Youdon’thavetotellothers.=Youneedn’ttellothers.5.hadbetter①You'dbettersithereandhavearest.

②Shehadbetternottellliesanymore.

③Hadn'tthedoctorbetterseehim你最好坐在這兒休息一下。她最好再也別撒謊了。醫(yī)生是不是去看看他比較好？

hadbetter

后接動(dòng)詞原形，意為“最好……”，用于現(xiàn)在或?qū)?lái)時(shí)，可用于一切人稱(chēng)，沒(méi)有任何詞形變化。否定形式為hadbetternot，疑問(wèn)句形式將had（not）提前。Underlinethemodalsintheintroductiontoanappandtalkabouttheirmeanings.beafraidtodosomethingnotbenecessarytodosomethingbenecessarytodosomethinghavetheabilitytodosomethingdon'thavetheabilitytodosomethinggiveadvicetodosomethingP52CompletethetipsforgoodtablemannerswiththecorrectformofmodalsinActivity1.havetodarenothadbetterneedn'tbeabletoP53Modalverbs(情態(tài)動(dòng)詞)canbeusedtoexpressthespeaker'smeaningof_________,___________,____________and__________,_________,etc.possibilitypermissionobligationadviceabilityForexample:beableto;dare；need＆needn’thaveto;hadbetter注：另附word文檔，點(diǎn)此鏈接。1.You__________gotoschooltomorrow,becauseitisSaturday.2.I'mafraidofdark,soI______________gooutaloneatnight.3.Althoughthedriverwasbadlyhurt,he__________________________explainwhathadhappened.4.Itisrainingheavilyoutside.You_____________notgooutnow.5.TheWangshadplannedatriptoHainan,butbecauseoftheheavyrain,they______________stayathomeinstead.needn’tdarenotwasabletohadbetterhadtoⅠ.用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空，每空一詞。1.—Whatdoyouthinkofhisadvice—Itcouldn'tbebetter.You__________________ _____________(最好接受他的建議).2.—Jim,how____________________________ (你怎敢說(shuō)那話)toyourboss —SowhatHe'salwaystreatingusunfairly.3.—Theconcertwaswonderfullastnight.Didyou gotoit—No.Iwouldliketohave,butI__________ ________________(不得不照顧)mysick babyathome.hadbettertakehisadvicedareyou say thathadtolookafterⅡ.根據(jù)漢語(yǔ)提示完成下列對(duì)話，每空一詞。4.—Lastyear,we_______________________ (能給)presentstoeachofthe80childrenat aschoolinourcommunity,andthrowa Christmaspartyforthem.Thisyearourgoal istoaddatleast20children.—Welldone!5.—IwillgiveacalltoMrs.Browntotellherthe news.—You_________________