2024-2025學(xué)年新教材高中英語Unit1Foodforthought突破語法大沖關(guān)教案外研版必修第二冊(cè)

PAGE1-Unit1Foodforthought情態(tài)動(dòng)詞(1)一、情態(tài)動(dòng)詞的特征1．情態(tài)動(dòng)詞表示說話人對(duì)某一動(dòng)作或狀態(tài)的看法，有確定的詞義，但不能單獨(dú)作謂語，必需和動(dòng)詞原形，即不帶to的不定式連用，才能構(gòu)成謂語。2．情態(tài)動(dòng)詞沒有人稱和數(shù)的改變(haveto例外，主語是第三人稱單數(shù)時(shí)，要用hasto)。二、情態(tài)動(dòng)詞的基本用法1．beableto/can/could[視察例句]①ThistimeIfailed，butI'llbeabletopasstheexamnexttime.②Marycanspeakthreeforeignlanguages.③HewasabletoleaveGermanyforAmericaduringtheSecondWorldWar.④TomcouldsingEnglishsongsattheageof6.⑤Whatcantheybedoingthere?⑥Hecan'tbeintheclassroom，forthelighthasbeenturnedoff.⑦Everythingcanhappen.⑧—CouldIuseyourbike?—Ofcourseyoucan.[歸納用法](1)表示實(shí)力。beableto和can都表示實(shí)力，意義上沒有區(qū)分。但beableto可用于多種時(shí)態(tài)，而can只有現(xiàn)在式和過去式(could)。留意：was/wereableto表示經(jīng)過一番努力，最終做成了某事；而could表示過去一般的實(shí)力。(2)表示推想。can表示推想，常用于疑問句和否定句，有時(shí)也可用于確定句表示理論上的可能性，表示“有時(shí)候可能會(huì)”。could與can相比表示較小的可能性。(3)表示懇求和允許。在問句中，could比can語氣更委婉。[即學(xué)即練1]選詞填空(beableto/can/could)①There'ssomeoneoutside—whocanitbe?②Howevergreatthedifficultiesmaybe，wecanovercomethem.③Thefirewasverybig，butallthepeoplewereabletoescapefromit.④Ican'tgiveyoudetailsbecauseIdon'tactuallyhaveanydetails.⑤CouldIhaveawordwithyouifyou'renottoobusy?2．haveto/must[視察例句]①Eachstudenthastohandinacompositiononceaweek.②Wemustdoeverythingstepbystep.③Youdon'thavetoworryaboutme.I'magoodswimmer.④Thatcarismyproperty;youmustn'tuseitwithoutmypermission.⑤Hemustbeill.Helookssopale.⑥Ifyoumustgo，atleastwaituntilthestormisover.[歸納用法](1)haveto意為“不得不”，一般指客觀，有時(shí)態(tài)和數(shù)的改變；而must意為“必需；應(yīng)當(dāng)”，一般指主觀，沒有時(shí)態(tài)和數(shù)的改變。(2)haveto的否定式意為“不必”，而mustn't表禁止。(3)must表示推想，意為“確定會(huì)”，只能用于確定句。(4)ifyoumust(dosth.)表示雖不贊同但可允許，意為“假如你確定要(那么做)”[即學(xué)即練2]選詞填空(haveto/must)①Shehastodoitherself.Shehasgotnoonetohelpher.②Theyhadtoputoffthesportsmeetbecauseofthebadweather.③Teachersmustbepatientenoughwiththeirstudents.④Thisbookmustn'tberemovedfromthelibrary.⑤Ifyoumustsmoke，pleasegooutside.3．dare/need[視察例句]①Youneedn'tanswermyquestionnow.②NeedItellhimeverythingthathashappenedtohisparents?③Hedarednottellhisparentsthetruth.④Darehegohomealongatnight?⑤HeaskedmeifIdaredrideahorse.[歸納用法]need和dare用作情態(tài)動(dòng)詞時(shí)，主要用于疑問句、否定句和條件從句，dare有時(shí)態(tài)改變。另外，need和dare也可用作實(shí)意動(dòng)詞。[即學(xué)即練3]完成句子①我喜愛周末，因?yàn)椴槐卦缙稹lovetheweekend，becauseIneedn't/don'tneedtogetupearly．②須要我立刻把孩子們召集在一起嗎？NeedIgatherthechildrentogetheratonce?③你怎么敢說我是賊呢？HowdareyousayIamathief?④他問我是否敢摸大象。HeaskedmeifIdared(to)touchanelephant．4．hadbetter[視察例句]①Ithinkyouhadbettergotothedoctoraboutyourcough.②Wehadbetternotremainhereanylonger.[歸納用法]hadbetterdosth.意為“最好做某事”，否定形式為hadbetternotdosth.[即學(xué)即練4]翻譯句子①你明天最好早來。Youhadbettercomeearlytomorrow.②你最好別錯(cuò)過末班車。Youhadbetternotmissthelastbus.Ⅰ.用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空1．Hewon'tbeabletocomeagaintomorrowbecauseheisverybusy.2．Youcan'tsmokehere.Gooutofthehouseifyoumust．3．Hebrokehislegandhadtolieallthetime.4．Shecouldplayseveralinstrumentsattheageofeight.5．Wehadbetternotjusttalk.Let'sgoandhelpthem.6．Tonyhasknownthegoodnews，soyouneedn'ttellittohim.7．Parentsaredoingalltheycantohelptheirchildrenachievetheirambitions.8．Ashewasseriouslyill，hehadtostayinhospital.9．Hedarenotdoitbecauseheisveryafraid.10．Hecan'tbeattendingthemeetingnowbecausehehasgonetoBeijingonbusiness.Ⅱ.用適當(dāng)?shù)那閼B(tài)動(dòng)詞或括號(hào)內(nèi)單詞的適當(dāng)形式完成短文Mary1.couldnotreadforverylongwithgettingaheadache.Herbestfriendsuggestedherhavinganeyeexamination.“You2.hadbettergototheHealthServiceandhaveyoureyes3.examined(examine)．”herfriendsaid.WhenMaryarrivedattheHealthService，shefoundmanypeoplequeuingupthere.Soshe4.hadtowaitforherturn.Whenitwasherturn，thedoctorexaminedhereyescarefullyandsaid，“I5.daresayyoudon'tpayattentionto6.protecting(protect)youreyes.Butyou7.needn't/don'thavetoworryaboutit.Usesomemedicineanddon'tmakeyoureyestootired，andsoonyouwill8.