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新外研社19高中英语必修二Unit6Earthfirst-Developingideas教案Teachingobjectives:Enablestudentstounderstandthepassageandmastertheusefulexpressions.Guidestudentstothinkaboutthecommonideasintheirlifelogicallyandcriticallybyunderstandingthepassagesothatimprovetheircriticalthinking.Leadstudentstofurtherunderstandthetopicofthisunitandcomeupwithsomeideasoflivingagreenlife.Evaluationobjectives:Askstudentstogetthesubheadingtofindoutwhethertheycanknowthefeaturesofnewspapereditorials.Askstudentstofindoutthedetailedinformationtoknowwhethertheycangetthelogicalandcriticalinformationofthepassage.Askstudentstosummarizethepassagetofindoutwhethertheyhaveunderstoodthepassagelogicallyandcritically.Askstudentstowriteapersuasivelettertocheckwhethertheyhaveknownhowtowriteit.Teachingkeypoints:Enablestudentstogetthesubheadingofeachparagraphandthelogicofthepassage.Leadstudentstoknowthefeaturesofnewspapereditorials.Understandthedifficultsentences.Comeupwithsomeideasoflivingagreenlife.Teachingdifficultpoints:Knowthefeaturesofnewspapereditorials.Understandthedifficultsentences.Comeupwithsomeideasoflivingagreenlife.Teachingmethods:.(吃剩的食物)caneasilybemadeintoasoup..(运用你的想象力)andmakeoldmagazinesandnewspapersintoartorgreetingcards..Plasticbottles(可以被改造成)plantpotswhileglassjarscanbeusedasvases..(完好无损的衣服)canbegiventocharitytobereused.Suggestedanswers:.reducestheamountofrubbish/garbage.second-handfurnitureandbooks.reusableshoppingbags.learntorepairitbyyourself.borroworrentthem.donatingittothecharity.Theleftovers.Makeuseofyourimagination.canbemadeinto.ClothesingoodconditionCooperativeTeachingMethodTask-basedApproachCommunicativeApproachTeachingprocedures:Stepl:Lead-inT:Helloboysandgirls.Asweallknowtheenvironmentoftheearthisveryimportantforourdailylife.Althoughtherearealotofproblemsintheaspectofenvironmentyetpeoplearetryingtheirbesttoprotectthem.Theyaredoingtheirbesttoliveagreenlife.Wecallitgreenliving\Nowletslookatsomeinformationaboutit.Lookatthequestionsaboutgreenlivingandtickyouranswers.l.WhichshoppingbagismoreenvironmentallyfriendlyA.Aplasticbag.B.Apaperbag.C.Neitherofthese..WhatshouldyoudotosaveenergywhenleavingyourhomeA.Turnoffadevice.B.Unplugadevice.C.Neitherofthese..WhatfoodisbetterfortheenvironmentA.Foodproducedneartowhereyoulive.B.Foodproducedfarfromwhereyoulive.C.ltdepends..WhichuseslesswaterA.Takingabath.B.Takingashower.C.ltdepends.Suggestedanswers Students7ownanswer.T:Differentpeoplehavedifferentideas.Maybeinyourdailylifeyouhaventtakenthethingsseriously.AreyourideasreallygreenNowletsreadapassagerelatedtothetopictochecktheanswers.Step2:ReadformaininformationReadthefoursubheadingsinthepassageanddecideiftheyaretrueorfalse.Subheadingl:Papershoppingbagsarebetterthanplasticones.Subheading2:Whenyouturnoffadeviceitstopsusingpower.Subheading3:Eatinglocalfoodisgoodfortheenvironment.Subheading4:ltzsbettertotakeashowerthanabath.Suggestedanswers:Subheadingl:F;Subheading2:F;Subheading3:ltdepends;Subheading4:ltdependsT:Fromthispartwecanfindoutthefeaturesofsubheadings:Assubheadingsexpandonthemainheadingortitletheycanbeslightlylongerthanthemainheading.Andnoteveryparagraphneedsasubheadingtogivethereadersanoverallunderstandingofthecontentofatext.Nowletsgetthedetailedinformation.Step3:ReadfordetailedinformationReadparagraphbyparagraphfinishtherelevanttasks.Taskl:ReadthepassageagainandfinishthefollowingtableTruthsSuggestionsMakingapaperbagusesmoreenergyandTakeawaterthanreusablebagmakingaplasticwithyouwhenbag.ltalsoyougoshoppingproducesmoregreenhousegases.Nosuggestion
4.Suggestedanswers:Truth2:Whenyouturnoffadeviceitgoesintostand-bymodeandstillusespower.Suggestions:Tomakesureyourapplianceisinfactoffremovetheplugfromitspowersupply.Truth3:lnsomecaseslocalproducesometimesmightusemoreenergyandproducemoregreenhousegasesthanproducegrownalongwayaway...Truth4:ltdependsonhowlongyouspendintheshowerandhowlargeyourbathis.Suggestion:Thekeyistokeepyourshowertimeasshortaspossible.Task2:Summarizethepassageandpayattentiontothesentencesofz/reallygreenlivingMostofusare1awarenessthatwemusttakecareoftheenvironmentandthemajorityofustakesteps2saveenergyandreducewasteandpollution.Butinfactsomelong-heldcommonsenseturnsoutonlyhalftrueoreven3completefalse.Forexamplepeoplethinkpaperbagsare4goodthanplasticbagsastheyareeasiertobreakdownthantheplastic5one.Theprocessofmakingpaperbags6Jsmoreenergyconsumingandwaterwasting.Sotakeareusablebagwithyouwhenshopping.Besidesremovetheplugfromitspowersupply7thestand-bymodestillusepower.Eatinglocalfoodisntnecessarilygoodfortheenvironmenteventakingtransportation8account.Sometakeitforgranted9ashowerconsumeslesswaterthanabath.ButthatdependstOhowlongyouspendinashower.Thebestpolicyistokeepyourshowerasshortaspossible.11environmentawarenessisnowpartofdailylife.Butitsworth12checkcommonideasandopinionstoseewhatsreallygreen.Suggestedanswers:.aware
2.tosave
3.completely
4.better
5.ones
6.however
7.because
8.into
9.that
10.on
11.Environmental
12.checkingStep4:Dealwiththedifficultpoints(l)Mostofusareawarethatwemusttakecareoftheenvironmentandthemajorityofustakestepstosaveenergyandreducewasteandpollution.[翻译]【知识链接】beawarethat.・.+句子;beawareof+名词/代词意识到……n.awareness意识认识提高某人的意识themajorityofpeople大多数人majorintakestepstodo采取措施做【实战演练】大多数人已经意识到环境保护的重要性首先我们应该提高人们保护环境的意识更重要的是我们应该采取措施来解决环境污染问题
(2)Plasticbagscauselitterandareadangertowildanimalswhichmistakethemforfood.[翻译]【知识链接】mistakeAforB把A误认为Bbymistake错误地;由于疏忽【实战演练】他由于疏忽,错把珠宝当作了垃圾
(3)lttakeshundredsofyearsforplastictobreakdownbutmuchlesstimeforpaper.[翻译]【知识链接】breakdown分解;(和谈)失败;(身体等)垮了其他相关短语(火灾战争)爆发闯入关系破裂⑷Howevermakingapaperbagusesfourtimesasmuchenergyasmakingaplasticbaganduptothreetimestheamountofwater.[翻译]【知识链接】倍数表达:倍数+asmuch(不可数名词)/many(可数名词)+as;upto:多达;Itsuptoyou.;Whatareyouupto;amount还可作uamountto总计;共达【实战演练】完成这个项目用了那个项目2倍多的时间其费用共达200万5Sotakeareusablebagwithyouwhenyougoshopping.[翻译]6Tomakesureyourapplianceisinfactoffremovetheplugfromitspowersupply.[翻译]【知识链接】remove.・.from...将从移开;removegloves摘下手套;removeproblems解决问题【实战演练】他被撤去主席的职务7ltseemslikecommonsense:eatinglocalfoodshouldbebetterfortheenvironmentbecauseitdoesnotneedtobetransportedlongdistancesandkeptcoldduringtransport.[翻译]【知识链接】commonsense常识其他相关短语:方向感;有意义;弄明白8ltistheproductionoffoodnotitstransportthatusesmostoftheenergyandproducesmostofthegreenhousegases.[翻译]【知识链接】强调句构成ltiswas+被强调部分+that强调人可以用who+句子其他【实战演练】正是塑料袋带来了白色污染9lnsomecaseslocalproducemighthaveusedmoreenergyandproducedmoregreenhousegasesthanproducegrownalongwayaway—eventakingintoaccountitstransport.【翻译】_【知识链接】a.may/mighthavedone表示对过去情况的推测用在肯定句或否定句中might的语气比may更不肯定更弱Hemay/mighthaveleftwhenyougotthere.b.grownalongwayaway在句中是过去分词短语作后置定语此句可以改写成定语从句c.take...intoaccount=takeaccountof.・・考虑至U,把考虑在内take...intoconsideration考虑到把考虑在内takingintoaccount…为现在分词的独立主格形式也称为悬垂分词不受句子主语的限制类似的结构还有generallyspeakingstrictlyspeakingtalkingof...speakingof...Judgingfrom/by..stakingallthingsintoaccountconsidering...【实战演练】考虑到他的年龄,我们不该对他要求太多10ltdependsonhowlongyouspendintheshowerandhowlargeyourbathis.【翻译】_【知识链接】a.dependon=relyon依靠/衣赖取决于……b.dependon的使用dependonsb./sth.dependonsb.todosth.dependon+宾语从句dependonitthat...Italldepends.视情况而定【实战演练】你的成绩取决于你对学习的态度llButitsworthcheckingcommonideasandopinionstoseewhatsreallygreen.【翻译】【知识链接】beworthdoing…doing是以主动的形式表达被动的含义值得做……【实战演练】这本书值得再读Suggestedanswers:⑴【翻译】我们大多数人都意识到我们必须爱护环境,且多数人采取措施节约能源,减少浪费及污染【知识链接】raisesb/sawareness;主修【实战演练】Themajorityofpeoplehavebeenawareoftheimportanceofenvironmentalprotection.Firstweshouldraisepeoplesawarenessofprotectingtheenvironment.Moreimportantly^weshouldtakestepstodealwiththeproblemofenvironmentalpollution.⑵【翻译】塑料袋会产生垃圾,同时对野生动物来说是一种威胁,它们会把塑料袋误当作食物【实战演练】Hemistooktreasureforrubbishbymistake.⑶【翻译】塑料分解需要几百年的时间,但纸张分解的时间要短得多【知识链接】breakoutbreakinto;breakup4【翻译】然而,制造一个纸袋所消耗的能源是制造一个塑料袋的四倍,用水量多达制造塑料袋的三倍【知识链接】由你决定;你在忙什么?【实战演练】Finishingthisprojectusedtwiceasmuchtimeasthatone.Itscostamountedto2million.⑸【翻译】所以,购物时随身携带一个可以重复使用的袋子⑹【翻译】要确保您的设备实际上已关闭,拔掉电源插头【实战演练】Hewasremovedfromthepositionasachairman.⑺【翻译】这似乎是常识:吃当地食物应该对环境更好因为它不需要长途运输,并且在运输过程中保持低温[知识链接]asenseofdirection;makesense;makesenseof⑻【翻译】消耗大部分能源和产生大部分温室气体的是食品生产,而不是食品运输【实战演练】Itisplasticbagsthatbringaboutwhitepollution.
(9)【翻译】在某些情况下,即使考虑到农产品的运输,当地农产品比生长在很远的地方的农产品可能消耗更多的能源,产生更多的温室气体【知识链接】Insomecaseslocalproducemighthaveusedmoreenergyandproducedmoregreenhousegasesthanproducewhichisgrownalongwayawayeventakingintoaccountitstransport.【实战演练】Takinghisageintoaccountweshouldntrequesttoomuchfromhim.
(10)【翻译】这取决于你花在淋浴上的时间,以及你的浴缸有多大【实战演练】Yourgradesdependonyourattitudetostudy.
(11)【翻译】但是值得核实一下常见的想法和观点,看看什么是真正绿色的(生活)【实战演练】Thisbookisworthreadingagain.Step5:ThinkSharel.HowgreenareyouShareyourgreenactionswiththeclass..WhatcanyoudotobecomegreenerLetsgogreen
1.Reusingitemssavesenergypreventspollutionand(减少垃圾数量)thatyoucreate.
2.Buyingproductslike(二手家具和书籍)helpsyousavemoneyaswellasspace.
3.Trytobuyitemsthatarereusablesuchasrechargeablebatteriesand(可重复利用的购物袋).
4.lfsomethingbreaksorstopsworkinggetitfixedinsteadofthrowingitaway.Betterstill俘着自己修).
5.Don/tbuythingsthatyouonlyneedoccasionallysuchastoolssportsequipmentorvehicles—(借或者租)instead.
6.Whenyounolongerneedsomethingthinkabout(捐给慈善机构)orsellingitsothatsomeoneelsecanuseit.。