2017-2018學年人教課標高一英語必修3教案Unit2Healthyeating

Unit2Healthyeating教案Ｉ．單元教學目標技能目標SkillGoalsTalkabouthealthydietMakesuggestionsorgivingadviceondietDistinguishthemeaningsofModalverbsMakeabalancedmenuII．目標語言功 能 句 式PracticetalkingaboutyourideasYes,Ithinkso. Idon’tthinkso.Iagree. Idon’tagree.That’scorrect.Exactly. That’sexactlymyopinion.You’requiteright.Idon’tthinkyouareright.Iquiteagreewithyou.I’mafraidIdon’tagree/disagreewithyou.Ofcoursenot.I’mafraidnot.Allright.That’sagoodidea.Certainly./Sure.Noproblem.PracticegivingadviceandsuggestionsYoumust/mustnot...詞 匯1.四會詞匯diet,nut,bean,pea,cucumber,eggplant,pepper,mushroom,peach,lemon,balance,barbecue,mutton,roast,fry,stirfry,ought,bacon,slim,curiosity,hostess,raw,vinegar,lie,customer,discount,weakness,strength,consult,fiber,digest,carrot,debt,glare,spy,limit,benefit,breast,garlic,sigh,bine2.認讀詞匯protective,spaghetti,protein,crisp,kebab,sugary,muscle,calmly,cooperation3.詞組getawayfrom,balanceddiet,oughtto,loseweight,tellalie,win…back,earnone’sliving,indebt,spyon,cutdown,beforelong,putonweight語法Theuseofoughtto1.StatementsYououghttocookfreshvegetablesandmeatwithouttoomuchfatifyouwanttostayslim.Yououghtnottoeatthesamekindoffoodateverymeal.2.DifficultyDistinguishandsummarizetheusageofoughttoandshould.Ⅲ.教材分析與教材重組 1.教材分析 本單元以“健康飲食”為中心話題，通過單元教學讓學生了解各種食物對人體的作用，引導學生關注平衡膳食，促使學生養(yǎng)成健康飲食的習慣。針對現(xiàn)實中遇到的實際問題發(fā)表自己的看法。最后讓學生運用所學知識，兩人一組研究中餐，設計食譜。 1.1 WARMINGUP是本單元一個重要的組成部分。讓學生看圖討論不同食物對人體的作用，了解飲食與人體健康的關系。通過幾個設問激發(fā)學生思考自己的飲食習慣是否合理，運用已有的知識經(jīng)驗思考什么是HealthyEating. 1.2 PREREADING通過一個表格和一個排序題引導學生對比不同食物中哪些食物富含脂肪、纖維素、維生素和糖份?？商砑佑懻撊绾卧谂腼冎斜３质澄餇I養(yǎng)，從而有利于健康。 1.3 READING講述王鵬和詠慧開飯店的不同風格和顧客對不同食品的反應，反映了現(xiàn)代人對飲食的關注和對時尚的追求。但王鵬和詠慧都沒有提供平衡的膳食，經(jīng)過一段時間的磨合，他們決定合作，提供既有能量又有纖維的食品。戲劇性的結尾增添了故事的趣味性。通過閱讀豐富學生的飲食文化，教會他們如何改善飲食習慣；在現(xiàn)實生活中碰到麻煩時，如何正確處理矛盾，解決問題。 1.4 PREHENING利用判斷和回答問題的形式考查學生對課文細節(jié)的理解，對比兩家飯店所提供膳食的優(yōu)缺點。 1.5 LEARNINGABOUTLANGUAGE是繼prehending之后的又一指導性練習。注重考查詞性的變化，課文中重點詞匯在語篇中的熟練運用及情態(tài)動詞的不同功能，并設計連線和情景對話兩個題型予以鞏固。 1.6 USINGLANGUAGE體現(xiàn)了學以致用的目的，從Listening,Reading,Speaking,Writing四方面訓練學生，完成語言的輸入性學習和輸出性訓練的過程，結合生活實際，讓學生兩人一組研究中餐設計食譜。 2．教材重組2.1精讀把Warmingup作為Reading的導入部分，把Prereading、Reading和prehending整合在一起作為一堂“精讀課”。2.2知識點學習把Reading的知識上一節(jié)“知識課”。2.3.語言學習把LearningAboutLanguage上一節(jié)“練習課”。2.4語法學習把Discoveringusefulstructures上一節(jié)“語法課”。 2.5聽力和閱讀UsingLanguage的Listening和Reading上一堂“聽力課加泛讀課”。 2.6口語和寫作將UsingLanguage的Speaking和Writing上一堂“寫作課”。 3．課型設計與課時分配 1stperiodWarmingupandReading 2ndperiodLanguagepoints 3rdperiodUsingLanguage 4thperiodGrammar 5thperiodListening&Reading 6thperiodSpeaking&WritingⅣ.分課時教案WarmingupandReadingTeachinggoals教學目標1.Targetlanguage目標語言a.重點詞匯和短語energy,fiber,digestion,bean,cucumber,mushroom,lemon,ham,mutton,roast,slim,curiosity,raw,lie,customer,muscle,cheese,protective,frustrated,drive,sugary,bodybuilding,energygiving，newlyopened,balanceddiet,oughtto,tiredof,throwaway,getawaywith,telllies,takeoff,beamazedat,dosomeresearchb.重點句子Hisfriedricewashotbutdidnottasteoffat.Tiredofallthatfat?Wanttobethinner?Onlyslimmingfoodservedhere.Iwilltakeallthatfatoffyouintwoweeksifyoueathereeveryday.Itwasnotgivingitscustomersenergygivingfood!SomethingterriblemusthavehappenedifMaochangwasnotingtoeatwithhimashealwaysdid.Hewonderedifheshouldgotothelibrarytofindout.Hecouldn’thaveYongHuigettingawaywithtellingpeoplelies!2.Abilitygoals能力目標a.Enablestudentstotalkabouttheireating.Inwhatwaysthefoodyoueathelpsyou?Howcanyouhaveahealthydiet?Whatwillhappenifyoudon’thaveabalanceddiet?b.Understandthetextandanswerthefollowingquestions.WhathappenedtoWangPeng’srestaurant?WhywouldhiscustomersprefertoeatatYongHui’srestaurant?WhatdidhedoafterleavingYongHui’srestaurant?c.UnderstandthedetailsaboutthetextandretellthetextintheroleofWangPeng.3.Learningabilitygoals學能目標Enablethestudentstolearnhowtotalkabouttheireating.Whatdoesahealthydietmean?IswhatYongHuididright?Why?WhatwillyoudoifyouareWangPeng?Teachingimportantpoints教學重點a.Identifydifferentgroupsoffoodsandtalkabouthealthyeating.b.Whatkindoffooddidtheyprovidefortheircustomers,healthyorunhealthy?Why?Teachingdifficultpoints教學難點a.Understandtherealmeaningofhealthyeating.b.Howwasthepetitiongoingon?Whowouldwin?Teachingmethods教學方法a.Fastandcarefulreading.b.AskingandansweringactivitytochecktheSs’understandingofthetext.c.Individual,pairorgroupworktofinisheachtask.d.Discussion.Teachingaids教具準備Arecorder,aputerandaprojector.Teachingprocedures&ways教學過程與方式Step1WarmingupWhatarethethreeessentialelementsforushumanbeingstosurviveontheearth?Water,air,foodWhichonewouldyouprefer?WesternfoodorChinesefood?Whatdoyouusuallyhaveforbreakfast/lunch/supper?Whatwillhappenifyoudonoteatabalanceddiet？Step2DiscussionWhatishealthydiet?Healthydiet:adietthatisbalancedandneithertoorichinfat,sugarandsaltnortoopoorandlackinginessentialnutrients.Step3SpeakingDecidewhichfoodisjunkfoodorhealthyfoodandgivereasons.Ithink…isjunkfoodbecause…Ithink…ishealthyfoodbecause…(berichin;belowin)Step4Prereading1.Whatdoyouthinkshouldgointoagoodmeal?Agoodmealshouldcontainsomefoodfromeachofthethreecategoriesabove.2.Imagineyouandyourpartneraregoingtoinvitesomefriendsfordinner.Whatspecialfoodofyourplacewouldyouofferthem?Planamenu.3.Lookatthetitleofthereadingpassageandthepictures.Predictwhatthepassageisabout.Step5FastreadingReadthetextquicklytofindoutwhichsentenceisthemainideaofthetext.1.Thetworestaurantssuppliedthehealthyfood.2.ThereasonwhyYongHui’srestaurantwassopopularwithcustomers.3.WangPengfoundoutwhyhehadlosthiscustomeranddecidedtowinthemback.Key:3Step6Reading1.UsuallyWangPeng’srestaurantwasfullofpeople.T2.YongHuicouldmakepeoplethinintwoweeksbygivingthemagooddiet.Itwouldtakelongerthanthat.F3.WangPeng’sregularcustomersoftenbecamefat.T4.YongHui’smenugavecustomersmoreemerygivingfood.FNo.itgavethemprotectivefoodbutnoenergygivingorbodybuildingfood.5.WangPeng’smenugavecustomersmoreprotectivefood.F6.WangPengdecidedtopetewithYongHuibycopyinghermenu.FHedecidedtoadvertisethebenefitsofhismenu.Step7Postreading1.TheweaknessofthedietinWangPeng’srestaurantwas_____________________________________.2.ThestrengthofthedietinWangPeng’srestaurantwas___________________________________________.Step8Homework1.Retellthetext.(1)Usethefirstpersontoretellthestory.(2)Trytouseproperprepositionsand conjunctions.2.PrepareforthelanguagelearninganddoUsingWordsandExpressionsonWB(Page49and50).LanguagepointsStep1RevisionWriteoutyouranswersaccordingtothepassage.1.TheweaknessofthedietinWangPeng’srestaurantwasthatitdidnotgive______________________.2.ThestrengthofthedietinWangPeng’srestaurantwasthatitdidnotprovided________________________.3.TheweaknessofthedietinYongHui’srestaurantwasthatitdidnotgive__________________________.4.ThestrengthofthedietinYongHui’srestaurantwasthatitprovided______________________.Keys:enoughprotectivefoodplentyofenergygivingfoodenoughofenergygivingfoodplentyofprotectivefoodStep2Languagepoints1.Everybodyhastoeat,butdoyoueatahealthydiet?dietn.飲食，食物diet指的是習慣的食物或規(guī)定的食物，特指維持健康的定量或定質的食物。food是一般的用語，凡能吃能喝的具有營養(yǎng)的東西都稱為food。強調種類時，food可用復數(shù)。Proper_____andexercisearebothimportantforhealth.Manysweet_______areonsaleinthestore.Milkisthe_____forbabies.Keys:dietfoodsfood【常用表達】balanced/healthy/poordiet均衡的/健康的/不良的飲食vegetarian/highfibrediet素食/高纖維的飲食adietoffish/fruit/potatoes只吃魚/水果/土豆的飲食beonadiet節(jié)食2.Whatwillyouhappentoyouifyoudon’teatabalanceddiet?balance作動詞，意為“均衡，權衡，保持平衡”。e.g.Trytobalanceyourdietbyeatingmorefruitandlessmeat.Youhavetobalancetheadvantagesoflivinginabigcityagainstthedisadvantages.balance作名詞，意為“天平，平衡”。e.g.Tomlosthisbalanceandtippedbackwardinthechair.Thepany’ssuccessisreflectedinitshealthybankbalance.【常用表達】keep/loseone’sbalance保持/失去平衡beoffbalance使失去平衡outofbalance失去平衡asenseofbalance平衡感thebalanceofnature自然生態(tài)平衡balancebeam平衡木afavorablebalance入多于出aunfavorablebalance入不敷出翻譯下列句子。1.你能單腳站立多久?2.實驗室的天平與商店里的秤在什么方 面有所不同?Keys:Howlongcanyoubalanceononefoot?Inwhatwayisalaboratorybalancedifferentfromabalancefoundinastore?3.WangPengsatinhisemptyrestaurantfeelingveryfrustrated.ing形式短語做伴隨狀語。e.g.Heplacedtwotablestogether,spreadingallthepapersoutonthem.Pretendingtolookfrightened,Ibackedtowardsthedoor.1)Norastoodatthebusstop,______________________.娜拉站在公共汽車站旁看報紙。2)___________________________,youcanhaveabetterviewofthecity.站在山頂上,你能更好地看到這個城市。3)Olivecame_____________________.奧麗夫跑步來到大樓前。4)“Wecan’tgooutinthisweather,”saidBob,____outofthewindow.A.lookingB.tolookC.lookedD.havinglookedKeys:readinganewspaperStandingonthetopofthehillrunningtothebuildingAfrustrated是形容詞，意為“失望的，失意的”e.g.Hefeelsfrustratedandangry.他感到既失意又惱火。frustratev.使挫敗,使不成功e.g.Thebadweatherfrustratesourhopesofhavingapicnic.壞天氣使我們野餐的愿望無法實現(xiàn)。4.“Nothingcouldbebetter,”hethought.=Allhisfoodscouldbebest.他想,“再沒有比這些更好吃的了”。此句是用比較級的否定形式表示最高級含義。e.g.—Howareyougettingon?你怎么樣?—Nothingcouldbebetter.再好不過了?！狣idyousleepwelllastnight?—Neverbetter,likearock.（再好不過）Nobodylovedmoneybetterthanhe.Ithinknothingismorepleasantthantraveling.—Howdidyourfatherfeelwhenhesaw whatamessyouhadmade?—Hecan’tbe________.(angry)Key:angrier1)Nothingismorepleasantthantravelling.=________________________________2)當你疲勞的時候，沒有什么比好好休息一下更好的了。_________________________________Keys:Travellingisthemostpleasantthing.Thereisnothingbetterthanagoodrestwhenyouareverytierd.5.SuddenlyhesawhisfriendLiChanghurryingby.see,hear,notice,watch,feel等動詞后面的賓語補足語可以是不帶to的動詞原形，也可以是ing形式，但兩者的含義不完全相同，前者著重敘述事實的經(jīng)過，后者著重覺察到的一個正在進行的動作。e.g.Isawhimputeverythinginhisbagandgoout.我看見他把所有的東西都裝進了口袋，走了出去。Isawhimputtingsomethinginthebag.我看見他正向口袋里裝東西。6.SomethingterriblemusthavehappenedifLiChangwasnotingtoeatinhisrestaurantashealwaysdid.[點拔]此句是一個主從復合句。主句為Somethingterriblemusthavehappened;從句是由if引導的條件狀語從句,即ifLiChangwas...restaurant;ashealwaysdid是由as引導的方式狀語從句。musthavehappened表示對已經(jīng)發(fā)生的事進行肯定的猜測,意為“一定做了某事”。其疑問形式是can/could提前,否定形式為:can’t/couldn’thavedone。e.g.Shemusthavearrivedhomebynow.Judgingfromherappearanceandmanner,shecouldn’thavebeenoverfiftyyearsold.7.Tiredofallthatfat?Wanttoloseweight?這是省略的句子，完整的句子應當是：Areyoutiredofallthatfat?Doyouwanttoloseweight?因此朗讀時應注意用升調。betiredof對……厭倦e.g.Iamtiredofthesamefoodeveryday.Can’twehavesomethingdifferent?天天吃同樣的食品讓人厭倦，難道我們不能換些花樣嗎？8.WangPengwasamazedatthisandespeciallyattheprices.beamazedat對……感到驚訝；驚愕e.g.Everybodywasamazedathisdesign.大家都對他的設計感到驚訝。Youwouldbeamazedathowdifficultitwas.要知道這是多么困難，你會大為詫異的。9.HecouldnothaveYongHuigettingawaywithtellingpeoplelies!a)havesb.doingsomething讓某人做某事；讓某情況發(fā)生e.g.OursuccessintheBeijingOlympicshasmewonderingwhetherwecanwinevenmoremedalsnexttime.我們在北京奧運會上的成功讓我真想知道下一屆我們能否贏得更多的獎牌。b)getawaywithdoingsth.不因某事受懲罰；攜帶……跑掉e.g.Forthatseriousaccident,hegotawaywithonlyafine.那么嚴重的事故，他繳了罰款就完事了。Theygotawaywithdamagingthecar.他們損壞了汽車卻逃之夭夭。翻譯下列句子。1.Thosewholieandcheatwillneverget awaywithit.2.Don’tthinkyoucangetawaywith telling lies. Keys:那些撒謊和欺騙別人的人絕對逃不過懲罰。不要以為你撒了謊就可以這樣算了。10.Perhapswithadiscountandanewsignhecouldwinhiscustomersback.winsth./sb.back贏回；重新獲得e.g.Thepartyisstrugglingtowinbackvoterswhohavebeendisappointedbyrecentscandals. 該黨正力爭贏回因其最近的丑聞而感到失望的選民。Theteamfinallywonbackthechampionshipaftertwodecades.這支球隊最終贏回了闊別20年的冠軍頭銜。[拓展]winover（通過勸說或示好以）獲得（支持或友誼）；把……爭取過來。e.g.We’llbeworkinghardtowinovertheundecidedvoters.我們將努力把猶豫未決的選民爭取過來。winthrough(=winout)擺脫困境；終獲成功。e.g.Asinmostofhisfilms,it’sgoodguyswhowinthroughintheend.正像他的大多數(shù)電影一樣，好人最終獲得勝利。將下列句子翻譯成英語。1)多年的沉寂后，他的再次出山 (eback)贏得了廣泛的關注。2)他對工作的投入贏得了學生們的尊重。3)正如我們所知，在野外，最強壯的才能最終獲勝。Keys:Hisebackafteryearsofsilencewonbackwideconcern.Hisdevotiontoworkwonovertherespectofstudents.Asisknowntous,thestrongestwillwinthroughinthewild.11.Thepetitionbetweenthetworestaurantswason! on作副詞與be連用時，可以表示以下幾個意思：(1)(電燈、水等)開著(2)正在進行，舉行(3)上演，演出①燈都亮著。②他們家的電視總是開著。③電影院在上演什么片子?④我到電影院的時候，電影已經(jīng)開演五 分鐘了。Keys:TheTVisalwaysonintheirhouse.Thelightswereallon.What’sonatthemovie?ThefilmhadbeenonforfiveminuteswhenIgottothecinema.12.ThestrengthofthedietinWangPeng’srestaurantwasthat...strength[觀察]閱讀下列各句，并觀察strength在句中的含義。1)Hepushedagainsttherockwithall hisstrength. 他使出全力推巖石。2)Shehasaremarkableinnerstrength. 她有出眾的意志力。3)Politicalpowerdependsuponeconomicstrength. 政治實力取決于經(jīng)濟實力。4)Thenewweapon’sstrengthliesinits accuracy. 這種新型武器的優(yōu)勢在于其精確性。[拓展]onthestrengthofsth.在……的影響或幫助下e.g.Igotthejobonthestrengthofherremendation.在她的推薦下，我得到了這份工作。strengthenvt.&vi.加強；強化e.g.Theorganization’saimistostrengthentheculturaltiesbetweenChinaandFrance.這個組織旨在加強中法兩國之間的文化聯(lián)系。將下列句子翻譯成英語。1)她再也走不動了。2)作為藝術家，她很清楚自己的優(yōu)點和 不足。3)在我兄弟的勸說下，我決定投身于 殘疾人的教育事業(yè)。Keys:Shedidn’thavethestrengthtowalkanyfurther.She’swellawareofherstrengthsandweaknessesasanartist.I’mdeterminedtodevotetotheeducationofthedisabledonthestrengthofmybrother’sadvice.Step3ExercisesI.根據(jù)下列各句句意及所給單詞的首字母 或漢語提示，寫出所缺單詞的正確形式。1.Mushroomsarebestwhen_____(油煎)inoliveoil.2.MrsEsterwasinherlatethirties,aboutaverageheight,witha_____(苗條的)figure.3.Childrenhaveanaturalc________abouttheworldaroundthem.4.Oncethe_______(女主人)appearedtoaskifwewereenjoyingourmeals,Imanagedtogiveherasilentnod.5.Idon’twanttohearabunchofbig____(謊言)aboutwhathappened.6.Thesteelfactoryhasbeensupplyinguswith_____(未加工的)materials.7.Weaimtooffergoodqualityandservicetoallour__________(顧客).8.I’mfeelingratherf_________inmypresentjob;Ineedachange.9.Therewouldbelongtalksaboutthestrengthsand__________(弱點)ofeachandeveryplayer.Keys:friedslimcuriosityhostessliesrawcustomersrrustratedweaknessesII.使該句與所給句子的意思相同或相近。A:Hisrestaurantoughttobefullofpeople.B:Hisrestaurantoughttobe_________people.2.A:Thiscouldbethebestthing.B:Nothingcouldbe_______.3.A:Heoftenlies,sonoonebelieveshim.B:Heoften_________,sonoonebelieveshim.4.A:Thestudentseemednottolistentohisteachercarefully.B:_________thatthestudentdidn’tlistentohisteachercarefully.5.A:Thetwosideswerefighting.B:Thefightbetweenthetwosideswas_____.Keys:filledwithbettertellsalieItseemedonLearningaboutlanguageStep1Wordsandimportantsentences.Explaintheimportantsentencesandlanguagepointsinthepassage.1.WangPengsatinhisemptyrestaurantfeelingveryfrustrated.2.“Nothingcouldbebetter,”hethought.3.SuddenlyhesawhisfriendLiChanghurryingby.4.HecouldnothaveYongHuigettingawaywithtellingpeoplelies!Step2DiscoveringFindwordsandexpressionsfromthetextthatmeanthesame1._____somethingthatyousayisnottrue2.______________nottobepunishedforsomething3._____uncooked4.________thestrongwishtoknowaboutsomething5._________someonewhobuysthingsorservicesfromashop,pany,etc.6._______aparticularqualitythatgivessomeoneorsomethingadvantagesStep3FillintheblanksJuliewantedtobeethinner.Sheknewshe_______eatmorevegetablesandfruitbutlittlemeat.Howeverasshewassoafraidofbeinglaughedatbyherfriends,shedidnotconsultadoctorbutlivedona________ofrice,________vegetables,bananasandlemons.Threeweekslater,shefoundsheweighedasmuchasever.Shefeltsosadandhopelessaboutherselfandherbehaviourchanged.Shedidn’tdaretofaceherboyfriendandshewasunwillingtovisitherfriendsanymore.Luckily,herbestfriendFredcametoseeherandencouragedhertoexercise,eata________dietandenjoylifeagain.SoonJuliebecameamazingly________and_______!Shefeltveryhappy.Step4PairworkInpairsmakeupadialogueaboutfoodyoulikeordislike,usingtheexpressionsbelowandasmanyfoodwordsasyouknow.Myfavouritefood/fruit/meatis…I’mfondof…Idon’tofteneat…Ireallyhate…Ican’tstand……makemegain/loseweightStep5DiscussionThinkofawaytoputanendtothepetition.Step6HomeworkFinishUsingwordsandExpressionsonPage49ofworkbook.GrammarStep1LeadinWhatshould/shouldn’twedotokeephealthy?Whatkindoffoodmustweeattobestrong?Whatoughtwetodotostayslim?Step2ModalverbsWhatmodalverbshaveyoulearned?can/couldmay/mightwill/wouldhadbettershall/shouldmusthavetoneedoughttodareStep3Explanation1.oughtto／shouldshould和oughtto都為“應該”的意思，可用于各種人稱。oughtto的語氣稍重一些。Yououghtto(should)followyourteacher’sadvice.表示主語的義務或責任：Youshouldtakecareofyoursister．你應當去照顧你妹妹?；蛑赋觥獋€正確、明智的動作：Theyshouldn'tallowparkinghere；thestreetistoonarrow．這兒不該允許停車；馬路太窄了。should和oughtto后面跟動詞不定式的完成式,其肯定句表示”過去應該做而未做”,其否定句則表示”過去不該做但做了”。Youshould/oughttohavemadethedecisionaweekago.Ishouldn'thavemadesuchafoolishmistake.多數(shù)情況下，oughtto可與should互換使用。oughtto的反意疑問句用shouldn’t替代。2.must和havetomust的用法

1）表示主觀的義務和必要,

主要用于肯定句和疑問句,

意思為

“必須……，得……，要……”；由must引起的疑問句，肯定回答要用must或have

to,

否定回答要用needn’t或don’t

have

to,

意思是“不必”；must的否定形式mustn’t表示禁止，意思是“不能，不許”。如：

—Must

I

finish

the

task

right

now?

我現(xiàn)在必須完成這個工作嗎？—Yes,

you

must.

/

Yes,

you

have

to.

是的。

(—No,youneedn’t./No,youdon’thaveto.不，不必。)Youmustn’teherewithoutpermission.未經(jīng)允許，你不能來這兒。have

to

的用法

1）must表示一種主觀的需要，而have

to

表示一種客觀的需要，意思是“不得不”。

如：

Ihavetoattendanimportantmeetingthisafternoon.今天下午我不得不參加一個重要的會議。Motherisout,soIhavetolookaftertheshop.媽媽不在家，因此我不得不照看商店。

2）have

to

的否定形式是don’thaveto,相當于needn’t。如：Theydon’thavetobuyaputeratpresent.

他們目前沒有必要買電腦。

Step4Choosethecorrectanswer1.Bylunchtimetheywouldallbesold.2.Hisrestaurantoughttobefullofpeople.3.Whatcouldhavehappened?4.Nothingcouldhavebeenbetter?5.Somethingterriblemusthavehappened.6.Iwilltakeallthatfatoffyouintwoweeks.7.Hecouldnotbelievehiseyes.8.Hewonderedifheshouldgotothelibrarytofindout.9.Hecouldn’thaveYongHuigettingawaywithtellingpeoplelies.10.Hehadbetterdosomeresearch.11.Aftereatingintherestaurantpeoplewouldbeefiredveryquickly.Step5ExplanationThestudentswilllearntheusageofmodalverbsandtrytomakethestudentsclearthefunctionsofmodalverbs.Thengivethemsomeexamples.Step6ExercisesChoosesuitablemodalverbsfrombelowtopletethefollowingdialogues.Theremaybemorethanonepossibility.1.SAM:HowcanIgrowthinner,Mum?MUM:Well,you_______eatfoodwithplentyoffiberthathelpsyoudigestbetter.Andyou______stopdrinkingcolaoreatingsweetfood.SAM:DoesitmeanI_______eatmyfavouritefriedchickenanymore?MUM:Notexactly,ifyoulovefriedchicken,you_______giveitup.Justeatitlessoften.You__________________________worrytoomuch:alittlefriedchicken________doyougood!2.Doctor:Youaresickbecauseyou’veeatenpoisonousmushrooms.Wheredidyougetthem?Lucy:Ipickedthenintheforest.Iknowwe_______eatfreshvegetables.Doctor:Oh,butyou________eatthemuntilyou’resuretheyarenotpoisonous.Lucy:Thankyou,doctor.I’llbemorecarefulnexttime.3.CHARLES:IwishIcouldseethingsclearlyinthedark.TOM:Eatingcarrots________helpyouseebetter.You________eatsomeeveryday.Step7Choosethecorrectanswer從A、B、C、D四個選項中，選出可以 填入空白處的最佳選項。1.—Idon’treallylikeJames.Whydid____youinvitehim?—Don’tworry.He______e.Hesaidhewasn’tcertainwhathisplans were.A.mustnotB.neednotC.wouldnot D.mightnot2.I______worryaboutmyweekend—I alwayshavemyplansreadybeforeites. A.can’t B.mustn’tC.daren’t D.needn’t3.—How’syournewbabysitter? —We______askforabetterone.Allourkidslovehersomuch.A.should B.mightC.mustn’t D.couldn’t4.You______buyagift,butyoucanifyouwantto. A.must B.mustn’tC.haveto D.don’thaveto5.—MayItakethisbookoutofthereadingroom?—No,you______.Youreaditinhere. A.mightn’t B.won’tC.needn’t D.mustn’t6.I____havewatchedthatmovie—it’ll givemehorribledreams. A.shouldn’t B.needn’tC.couldn’t D.mustn’t7.Mark______havehurried.After drivingattopspeed,hearrivedhalfanhourearly. A.needn’t B.wouldn’t C.mustn’t D.couldn’t8.WhenIwasyoung,IwastoldthatI ____playwithmatches.A.wouldn’t B.needn’tC.mustn’t D.daren’t9.—Whatsortofhousedoyouwanttohave?Somethingbig?—Well,it______bebig—that’snotimportant.A.mustn’t B.needn’t C.can’t D.won’t10.—Whatdoyouthinkwecandofor ouragedparents?—You______doanythingexceptto bewiththemandbeyourself. A.don’thaveto B.oughtn’tto C.mustn’t D.can’t11.Thebosshasgiveneveryoneaspecial holiday,sowe_____gotowork tomorrow. A.can’t B.mustn’t C.needn’t D.shouldn’t12.Someaspectsofapilot’sjob____be boring,andpilotsoften_____workat inconvenienthours. A.can;haveto B.may;canC.haveto;may D.oughtto;mustKeys:DDDDDAACBACAStep8HomeworkFinishUsingStructuresonPage50ofWorkbook.UsinglanguageStep1PrelisteningWorkingroupsanddiscusswhatillnessesunbalanceddietscause.scurvyricketsobesityWhattheseillnessesare?rickets:legsthatdonotgrowstraight佝僂病scurvy:teethfallout,problemswithskinandsoresthatwillnotheal壞血病obesity:muchtoofat過度肥胖Step2Listening1.ListentothewholedialoguebetweenWangPengandanexpert.Writedownthemainideaofthedialogue.WangPengisdoingresearchtofindouthowanunbalanceddietcanaffectyourhealth,soyouneedtoeatabalanceddietifyouaretostayhealthy.2.Listenagainandjointhenamesof theillnessestotheircauses.Scurvytoomuchrice,noodles,sugarandfatRicketsnotenoughvitaminCObesitynotenoughproteinandvitaminD3.Afterlistening,workinpairsanddiscusswhatproblemsWangPengandYongHuihaveandwhatsuggestionsyouwouldgivethem.OwnerofrestaurantProblemswithfoodofferedWhatfoodisneededWangPengYongHuiStep3FastreadingReadthetextfast,thenanswerthefollowi