Unit4-Period4名师系列学案

PAGE1/4Unit4Period4名师系列学案Speaking,Listening&Writing目标聚焦一、知识目标1.Tolearnhowtoexpressagreementanddisagreement.2.Tolearnabouttheglobalwarmingandwhathastobedonetoslowitseffect.3.Tolearntowriteacompositionofgivingsolution.4.Toimprovestudents’abilityoflistening,speakingandwriting.二、技能目标培养学生的质疑意识，提高学生分析问题和解决问题的能力；培养学生组织语言、运用语言的能力。三、策略目标1、设计一张海报，介绍减少空气中二氧化碳含量的方法。2、利用讨论的方法掌握表达同意与不同意某人观点的表达。四、情感态度目标通过本节课的学习,让学生了解能源分为“不可再生能源”和“可再生能源”，帮助学生树立“节约能源，保护环境”的主人翁意识。学习流程Beforeclass(课前自主学习，合作探究)Task1Findtheexpressionsforintensionsandpurposes.AgreementanddisagreementBlameandcomplaint1.________________________________2.________________________________3.________________________________4.________________________________5.________________________________6.________________________________7.________________________________1.________________________________2.________________________________3.________________________________4.________________________________5.________________________________6.________________________________7._______________________________Inclass（课上交流展示、研讨提升）Step1Check-upandleadin（展示预习成果和导入新课）

Discussingroup全球变暖对人类生活与自然会造成各种各样的影响，每人至少举一两个例子。然后，有记录人向全班同学陈述小组讨论情况。Step2Listening（Page31）1.LibinisinterviewingProfessorKeelingaboutusingdifferentsourcesofenergy.Readthestatementsbelowandticktheonesyouagreewith.ThenlistentoPart1,anddecidewhichstatementsProfessorKeelingdoesNOTagreewith.weshouldstopdependingonfossilfuelsforourenergy.90%ofourenergycomesfromfossilfuels.Wecanreplacefossilfuelswithcleanersourcesofenergy.Nuclearpowerisagoodsourceofenergy.2.ListentoPart1againandticktheenergysourcesthatarementioned.Completethenotesonthem.SourcesofenergyNotesFossilfuelsWindpowerEnergyfromthesunNuclearpower3.Listentopart2andthenlistthreethingswecandotosaveenergy.4.Listentopart2againandfillintheblanks.Libin:…whatabout____________?Theydon’tcutdownontheiruseof________.Keeling:No,theydon’t.However,thatisa______wemustworkonasa_______community.Thatmeans_______and______countrieswillhavetoworktogether.Libin:Butit’snotthe_______countriesthatputmostofthecarbon_______intotheair.Thedevelopedcountriesarereallytheonesto________.5.NowreadagainwhatprofessorKeelingandLlibinsay.Theningroupsdiscusswhoyouagreewithandgivereasons.Usesomeofthephraseslistedbeloworanyothersyouknow.Step3写的训练Writeashortpassagetotellothershowtosolvetheproblemofglobalwarmingbasedonthesuggestionsyouhavecollected,youcanaddmoresuggestionsifyoulike.Makeapresentationtotheclass.以Solutionstoslowingclimatechange为题，写一篇短文，下面范文供参考。Globalwarmingdoesnothavetooccur.Itispossibleforthehumanracetoslowdownglobalwarmingandmaybeevenremovealloftheeffectthatpeoplehaveontheclimate.Oneofthesolutionsistoincreasethenumbertreesontheearth.Treescouldtakeinthecarbondioxidethroughitslifeprocesses.Thetreeswouldfixcarbon,changingtheatmosphericcarbonintoorgancarbon.Themoretreesaregrowingonearth,thelesscarbondioxidewillbeintheatmosphere.Thesolutiontoreducingthissourceofcarbondioxidereleasewouldbetochangewhereenergycomesfrom.Lesscarbonwouldbesentoutiffossilfuelswereusedproperly.Thiscouldbedonebyincreasingefficiency.Efficiencycouldbeimprovedinavarietyofdifferentplacesitwouldbepossibleofheightenefficiencyinallareasofenergyproduction,distribution,anduse.Climatechangewouldbemucheasiertocontrolifpeopleunderstand