人教版高中英语选修6《Unit 4 Global warming》教案.doc

人教版高中英语选修6Unit 4 Global warming教案 教学准备 教学目标 TeachingAims: InthisclassSswillbeableto practiceskimmingandscanningforinformationneededlikewhatarethetwoconcernsandwhatareEarthCaressuggestions. Masterthephrasessuchas:putupwith,solongas,andsoon,makeadifference,havenoeffecton,bymakingsentencesorbyusingthemintotheposter. beeawareoftheseriouseffectsofglobalwarmingandtheimportanceofsavingenergytobeenvironmentallyfriendly. Summarizethepointsaordingtotheirunderstanding. worktogethertodesignaposterbyusingthesuggestionsinthearticle. 教学重难点 TeachingDifficulties: Studentsmayfindithardtoaddmoresuggestionsabouthowtosaveenergyinourdailylifeandtosummarizethepointsaordingtothosesuggestions.Studentsmaynotknowclearwhatisaposterandhowtodesignanattractiveandpersuasiveposterinshorttime. 教学过程 TeachingProcedure: Step1.Lead-in(individual&collectivework) 1.Teacherbeginstheclassbyasking:HaveyoueverseenthemovieTheDayAfterTomorrow?andthenletstudentsenjoyashortmovieclipwiththefollowingtwoquestions: Whatkindsofdisastershaveyouseeninthefilm? Canyouguesshowtheycameabout(happen)? 2.introducethetopic:globalwarming.Andthenhaveafurtherquestion: Whatotherdisasterwillbecausedbyglobalwarming? 【DesigningPurpose】 Toarousestudentsinterestbywatchingthemovieclipandeducethetopic,thatisglobalwarming.Andthenbyshowingalotofpictures,makestudentsknowandunderstandtheterribleeffectsofglobalwarming,thusmakingpreparationsforpromotingenvironmentalprotection. Step2.WhileReading(Individualwork) Skimming:Gothroughthefirstlettertofind: whoisthewriter? whatarehistwoconcerns? Scanning:Readthesecondletterandanswerthefollowingquestions: DoesEarthCareagreewithOuyangGuangsopinionthatindividualscanhavenoeffect? whatareEarthCaressuggestions? Canwecarrythosesuggestionsout?Why? 【DesigningPurpose】 Tohelpthestudentsgraspthemaininformationofthetwolettersbyskimmingandscanning.Whilestudentsgettheanswertoquestion1,askthemtofindthesupportingsentence:Together,individualscanmakeadifference.Wedonothavetoputupwithpollution.Guessthemeaningsofthetwoitalicizedphrasesaordingtothesurroundingsandtheirunderstanding. Step3.Postreading(Pairwork) 1.Discussion:Makestudentsdiscusswhethertheycanfindmorewaysorsuggestionsaboutreducingcarbondioxideandsavingenergyinourdailylife. Suggestedways: 1)Uselesshotwater7)Changealightbulb8)Trycarsharing 2)Takeashowerinsteadofabath 3)Buyfreshfoodinsteadoffrozen 4)Buythingsthatareactuallyinseason 5)EatlesshighfatfoodlikeKFCandMacdonald 6)Cleanfilters(过滤器)onyourairconditioner. 【DesigningPurpose】 Tocultivatestudentstoworkinpairsandlearntosummarizeanopinionandsharetheknowledgeofsavingenergyindailylife.Topracticetheabilityofunderstandingthemeaningofnewwordsandexpressionstoremovetheobstaclesinreading. Step4.learnwhatisaposter(collectivework) Knowwhatisaposterbygivingasimplesampleandtrytogetthestructure. 【DesigningPurpose】 Toknowclearlyapostershouldhaveaheading,contentsandaneye-catchingslogan,whichwillmakeiteasyforstudentstodesignanaeptableposter. Step5.Preparetheposter(individual&groupwork) 1.Decideourcontents: Chooseanddecidefivemostimportantsuggestions.(individualwork) Writethemdownonyourpaperandtrytomakethempersuasivebyusingimperative sentences.(individualwork) Compareyourlistwithyourgroupmembersanddecidefiveforyourposter.(group work) 2.Sloganandheading:showingsampleposterstohelpthemdecideaheadingandasloganforyourposter. 【DesigningPurpose】 Thisisthemostimportantpartofthiswritingtask.Studentswillbeabletosummarizeandposesentencesbychoosingandorganizingwhattheywanttosay,thusimprovingtheirwritingabilityandtheprocessofoutputbasedonwhattheyhavelearnedinreadingpart.Andbylearningsomesampleposterstohelpthemdecidetheirownheadingandslogan. Sduce&showtime(groupwork) Withtheheading,sloganandways,studentswillnotfinditdifficulttomakeaposter.Whatthey Shouldpayattentionishowtoillustratetheirposterandmakeitmoreattractive.Andthenchooseseveralpairstorepresenttheirposters. 【DesigningPurpose】 Makingtheposterwillimprovetheircognitivecapabilityoftheimportanceofenvironmentalprotectionandatthesametimetheycanenjoyasenseofachievementinshowtime.Andtheymakebelievethatindividualscanreallymakeadifference. 课后习题 Homework： Puttheirposteruparoundtheschooltomakemorestudentsknowaboutenergysavingandglobalwarming.WriteashortpassagetotellothershowtosolvetheproblemofglobalwarmingbasedonthesuggestionsyouhavecollectedandsenditinyourQQzoneorblog. 板书 板书设计：tsunami/flood/ Moresuggestions:makefulluseofpaper/usebothsidesofpaper reusewater limitthetimeofusingprivatecars sendemailsinsteadofcards uselesshotwater alwaystakeashoppingbagwithyou driveabicyclebutnote-bicycle 教学准备 教学目标 Teachinggoals教学目标 1.Targetlanguage目标语言 a.重点词汇和短语 energy,light(v.),heat(v.),renewable,non-renewable,fuel,blame,runout b.交际用语 Expressingagreementanddisagreement Yes,Iagreewithyou. Yes,Ithinkso. Ibelievethatyouvegotitright. Idontthinkso. Idontthinkthatsright. Imafraidyouarewrong. 2.Abilitygoals能力目标 Enablethestudentstotalkaboutdifferentsourcesofenergyandexpresstheirownideas. 3.Learningabilitygoals学能目标 Helpthestudentslearnhowtogivetheirideasabouttheuseofenergy. 教学重难点 Teachingimportantpoints教学重点 Enablethestudentstoexpressagreementanddisagreement. Teachingdifficultpoints教学难点 Enablethestudentstolearnhowtoexpressagreementanddisagreement. 教学过程 StepRevision T:Goodmorning,everyone. Ss:Goodmorning,teacher. T:Sitdown,please.Beforeclass,Illcheckyourhomeworkfirst.Mary,wouldyoureadyourhomeworktous? CheckthestudentshomeworkandhaveadiscussionwiththestudentsaboutthemistakesMarymade.Letthestudentshaveaclearunderstandingaboutthemistakesandthencorrectthem. StepWarmingup T:Asweallknow,wedependonenergytodomanythingsinourdailylife.Somepeopleevensaywecoulddonothingwithoutenergy.Canyoutellmewhatweuseenergyfor? Sa:Energylightsourcities. Sb:Energyheatsourbuildings. Sc:Energyentertainsus.Withthehelpofelectricity,peoplehavegotalotoffunfromwatchingTV,playingputersandsoon. Sd:Therearemanyotherelectricalappliancesthatmakeourlifemoreconvenientandfortablesuchaswashingmachines,microwaves,airconditionersandsoon. Se:Todayenergyalsohelpspeoplerealizemanyso-calleddreamsinthepast.Forexample,peoplecan“fly”fromoneplacetoanotherbyplanewhichrunsonenergy. Sf:Itstrue.Infact,notonlyplanesbutalsocars,shipsandtrainsrunonenergy. T:Welldone.Allthatyouvejustsaidisright.Soitseemsthatenergyplaysaveryimportantroleinthemodernworld.Thenwheredoesalltheenergyefrom?Openyourbooksandturntopage25.Lookatthepicturesonthispage.Theymayhelpyoufindouttheanswers. Afterawhile. T:Whodliketotellusyouranswers? Sg:Windpower. Sh:Coalpower. T:Right.Isthereanydifferencebetweenthem? Si:Yes.Windwillneverrunoutwhilecoalisalimitedsource. T:Itstrue.Asweknow,anenergysourceisrenewablewhensuppliesofitneverrunoutwhilesomesupplies，suchascoal,willdefinitelyrunoutoneday.Energyofthiskindiscallednon-renewablesources.Pleasethinkofasmanysourcesasyoucananddecidewhichenergysourcesonyourlistarerenewableandwhicharenon-renewable. Ifnecessary,givesomewordsrelatedtothepictureswhichmightbedifficultforthestudentssuchasoilrefinery,hydroelectricpowerandsoon. Theteachershouldalsocollectasmuchinformationaboutdifferentsourcesofenergyaspossibleandshowittothestudentsinclassthroughaputer.Inthisway,thestudentswillbeemoreinterestedinthistopicandtheirknowledgeonthisaspectwillbeenlarged. Sampleanswers: StepListeningandDiscussing T:Fromwhatwevejusttalkedabout,itisclearthatenergydoesalotofgoodtous.Buteverycoinhastwosides.Isthereanynegativeeffectofusingenergy? Sa:Yes.Peopleusetoomuchenergywhichisresultinginanincreaseincarbondioxide.Thatishowtheglobalwarmingesabout. Sb:Andmeanwhileitpollutestheenvironment. T:Itstrue.Manypeoplehaverealizedtheproblem.Nextwelldosomelisteningpracticeonthistopic.Letsseewhatotherpeoplethinkofthisissue. Thestudentsareaskedtoreadthequestionsquicklytofindouttheli