高中英语-THE EARTH IS BECOMING WARMER教学课件设计

Learningitems:1.Learntomasterthefeatureofascientificexposition.2.Learntosortoutmajordetailsquicklyandmakealist.

3.Learntoshowagreement/disagreement.4.Haveasenseofprotectingtheearth.Pre-classactivities1.Marktheparagraphs.2.Getthroughthevocabularybarrierfossilfuels化石燃料Carbondioxide二氧化碳Celsius摄氏；摄氏的methane甲烷，沼气vapour水蒸汽catastrophe大灾难，浩劫drought旱灾；干旱shave剃；刮editiontypeface版面字体Theearthisbecomingwarmer-Butdoesitmatter?ReadforthestructureDifferenteditionsandtypefaces.

Amagazinearticle.Section1Section2AbriefintroductionThemainbody(1min.)Section1(Para1)Howhasglobalwarmingcomeaboutanddoesitmatter?Whatquestionswillbemainlyexplored?(3min.)Section2(Para2-7)Findthemainideaofeachparagraph.Para.1Theearthisbecomingwarmerbecauseofhumanactivity.Para.2Para.4Para.3Para.5Para.6Para.7ThelevelsofCO2haveincreasedgreatly….Theincreaseintheearth’stemperatureisdueto….Allscientistsacceptthisdata.Theattitudesofscientistsarecompletelydifferent....Globalwarmingiscontinuingandnooneknowsitseffect.Readingmethod:Topicsentencesandkeywordshelpalot.Section2Ascientificexposition科普说明文ThecontentandthefeatureoflanguageThefactThecauseAttitudesConclusionPara.2Para.3-5Para.6Para.7Data,examplesThestructureofascientificexpositionThecauseSection1AbriefintroductionSection2ThemainbodyConclusionAttitudesThefactRead

Para2&Graph1:Whatisthefact?Theearthisbecomingwarmerandhumanactivityhascausedit.1min.Section2：How？Section2：ReadPara3:Howhumanactivityhascausedthesharpincreaseintheearth’stemperature?The_________intheearth’stemperatureHumanactivity:____________Anaturalphenomenonnamed_________Byproductscalled_____________burningoffossilfuelsgreenhousegasesgreenhouseeffectincreaseAregreenhousegasesreallyharmfulandtotallyuseless?Why?Theproblembeginswhenweaddhugequantitiesofextracarbondioxideintotheatmosphere.Section2：ReadPara3:ThecauseHumanactivityofburningoffossilfuelsHugequantitiesofextracarbondioxideThesharpincreaseintheearth’stemperatureSection2：ReadPara4-5:Supportingdata.3153701-1.55DrJaniceFosterexplains:”…”Hambleystates,”…”…thecarbondioxide…around315partsto370partsSection2：Howdoestheauthormakehiswordsmoreconvincing?UsinggraphsUsingquotesListingnumbersThefunctionofwritingskills:MakingthewordsmoreconvincingReadPara6:Thedifferentattitudesandpredictions.causethesealeveltoriseseverestormsdroughtsfaminesthespreadofdiseasesdestructionofspeciesmakeplantsgrowfastercropswillproducemoreagreaterrangeofanimalsmakelifebetterNegativePositiveSection2:On

theonehand….Ontheotherhand….Readingmethods:1.Payattentiontothelinkwords.2.Makingalisthelps.Showyouragreement/disagreementonthefollowingstatement:Weshoulddonothingaboutglobalwarming.Remembertomakeyourwordsconvincing.Twosidesvoicetheirviewsinturn.GroupworkUsefulexpressions:Ican’tagreemore.Iamexactlyinfavorof….Isidewith….Iamfor….I’mafraidIamopposedto….Ireallydoubt….It’sapitythatIobjectto…Ihavetoexpressmydisag