人教版高中英语必修三unit2教案

Unit2.HealthyEatingTeachingaimsanddemands:1.Topics:Problemswithdiet;Balanceddietandnutrition2.Wordsandexpressions3.Functions:1)SuggestionsandadviceYoumust/mustnot…;WhatshouldIdo?Ithinkyououghtto…;Isupposeyouhadbetter…Perhapsyoushould…Doyouthinkyoucouldgivemesomeadvice?2)SeeingdoctorsWhat’sthematter?What’swrong?Whatseemstobethetrouble?Howlonghaveyoubeenlikethis?3)Agreementanddisagreement.Idon’tagree.Ofcausenot.Idon’tthinkso.Allright.That’sagoodidea.Noproblem.Certainly/sureYes,Ithinkso.I’mafraidnot.4.Grammar:TheuseofoughttoYououghttocookfreshvegetablesandmeatwithouttoomuchfatIfyouwanttostayslim.Yououghtnottoeatthesamekindoffoodateverymeal.Period1Vocabulary重点词汇1.balancen.天平，平衡；余额，余数v.平衡；权衡balancedadj.均衡的[典例]1).Trytoachieveabetterbalancebetweenworkandplay.争取把工作和娱乐更好地结合起来。2).Imustcheckmybankbalance(=findouthowmuchmoneyIhaveinmyaccount).我要核对一下我在银行的余额（看我的帐户上有多少钱）。3).Trytobalanceyourdietbyeatingmorefruitandlessprotein.多吃些水果,少摄入些蛋白质,使饮食均衡合理。[重点用法]abalanceddiet均衡的饮食keepthebalanceofnature保持生态平衡keepone’sbalance保持平衡loseone’sbalance(=beoutofbalance)失去平衡[练习]用balance短语填空或翻译。1).He__________________andhurthimselfwhenhewentupstairs.2).Itisdifficulttoforyouto___________________onanicypavement.3).我们必须权衡利弊才做出决定。________________________________________________________________________________________Keys:1).losthisbalance2).keepyourbalance3).Wemustbalancetheadvantagesagainstthedisadvantagesbeforewedecide.2.curiosityn.好奇心curiousadj.好奇的curiouslyadv.好奇地[典例]1).Childrenhaveanaturalcuriosityabouttheworldaroundthem.小孩子对他们周围的世界有着天生的好奇心。2).Iopenedthepacketjusttosatisfymycuriosity.我打开包裹只是为了满足我的好奇心。[重点用法]outofcuriosity出于好奇withcuriosity=curiously好奇地becuriousaboutsth.对某事好奇becurioustodosth.好奇地做某事[练习]用curiousity的短语或其适当形式填空。1).Margaretlookedathim______________.2).Shedecidedtotryacigarette_____________________.3).Alltheemployeesinthisfirm____________________thepersonallifeofthegeneralmanager.4).________enough,hehadneverseenthelittlegirl.3).________droveMarytoopenherhusband’sletterthoughsheknewitwaswrong.Keys:1).withcuriosity2).outofcuriosity3).arecuriousabout4).Curiously5).Curiosity3.limitvt.限制；限定n.界限；限度limitedadj.有限的limitlessadj.无限制的[典例]1).Thespeedlimitonthisroadis70mph.这条路的车速限制是每小时70英里。2).Wemusttryandlimitourexpenditure.我们必须设法限制我们的开支。3).There’salimittohowmuchI’mpreparedtospend.我准备花多少钱是有限度的。[短语归纳]limit短语：limitsb./sth.to...限制某人/某事到某种程度putalimiton...对……限制thereisalimitto对……是有限的withoutlimit无限地，无限制地[练习]用limit的短语或其适当形式填空。1).One’senergyis______.2).________________________(没有止境)whatyoucandoifyoutry.3).Wemust_______ourweeklyexpenditure______tenpounds.4).Onlya_______numberofplacesareavailable.Keys:1).limited2).There’snolimitto3).limit;to4).limited4.benefitvt.有益于vi.得益于（常与from,by连用）n.利益，好处；津贴1).Therainbenefitstheplants.=Theplantsbenefitfromtherain.这场雨有益于植物。2).Thisdictionarywillbeofgreatbenefittome.这本字典将对我有很大的好处。3).Hesaidhewouldstarveratherthanbegforfood.他说他宁愿挨饿也不要饭吃。4).Theenemyistryingtostarveustodeath.敌人正在企图饿死我们。[重点用法]beofgreatbenefitto=beverybeneficialto对……有益forthebenefitof=forsb’sbenefit为了……的利益benefitfrom从……中受益[练习]用benefit或其短语的适当形式填空。1).Thenewhighwaywill________thevillagers.2).Hewill_________thenewwayofstudying.3).Thewarningsignwasputthere_________thepublic.Keys:1).benefit2).benefitfrom3).forthebenefitof5.combinevt.&vi.(使)联合；结合combinationn.联合；结合combinedadj.联合起来的[典例]1).Wecan’talwayscombineworkwithpleasure.我们并不总是能在工作中享受到乐趣。2).Circumstanceshavecombinedtoruinourplansforaholiday.各种情况凑在一起破坏了我们的假日计划。[短语归纳]combine的短语：combinewithsb./sth.与某人某物结合起来combinetogether联合起来combineAwith/andB使A与B联合起来[练习]用combine的短语或其适当形式填空。1)A_______offactorsledtoherdecisiontoresign.2)Successwasachievedbythe_______effortsofthewholeteam.3)Asawriter,he_______wit_______passion.Keys:1).combination2).combined3).combined;and/with重点词组1.betiredof=befedupwith=besickof对……厌烦了[典例]1).Wearefiredofhearingtheoldstory.这老话我们听厌了。2).I’mtiredofthesamebreakfasteveryday.我厌倦了每天吃同样的早餐。[短语归纳]get/betiredofdoingsth.厌倦(做某事)get/betiredfromdoingsth因……而疲倦betiredout=bewornout非常疲倦[练习]用tired短语的适当形式填空。1).Myeyes__________________readinginapoorlight.2).I__________________watchingtelevision;let’sgoforawalk.3).I__________________.Canwestopforarest?Keys:1).weretiredfrom2).amtiredof3).amtired/wornout2.oughttoaux.应当；应该(没有人称和数的变化，后接动词原形)[典例]1).Theyoughttocometomorrow.他们明天应当来。2).Hethoughtthattheyoughttotakepartinthedesign.他认为他们应当参加设计。3).Heoughtnottodoit./Heoughtn’ttodoit.（否定形式）他不应该做这件事。4).Oughtwetodoitatonce?（疑问式）我们应该马上做这件事吗？[练习]按要求填空或翻译。1).Heoughttobehere,__________he?(反意疑问句)2).I’msorry.I____________________(本应该先给你打个电话)totellyou1wascoming．3).I______________________(本不该拜访)her,butImissedhersomuch.Keys:1).shouldn’t/oughtn’t2).should/oughttohavephoned3).shouldn’t/oughtnottohavevisited3.loseweight体重减轻；减肥[典例]Sheistryingtoloseweight.她在努力减肥。[短语归纳]weight短语及lose短语：putonweight（指人）增加体重，长胖be/takeaweight/loadoffsb’smind使自己/某人如释重负lostheart泄气；灰心loseone’sheart(tosb/sth):fallinlove爱上；锺情於……loseone’slife丧生；遇害loseone’sbalance失去平衡loseone’sbreath气喘嘘嘘；上气不接下气loseone’shead昏了头，张皇失措，冲动loseone’stemper发脾气loseone’sjob失业loseone’sway:becomelost迷路losetouch(withsb/sth)