M6U4 普陀中学张红萍etc舟山M6U4GlobalWarming.ppt

unit4globalwarming brain storm putthestudentsintogroupsoffouranddiscussthefollowingquestions 1 whatdoweuseenergyfor 2 whatarethesourcesofenergy 3 whatsourcesarerenewableandwhatarenon renewable warming up lights heating andallkindsofelectricequipmentuseenergy 1 whatdoweuseenergyfor acoalpowerstation non renewable coal windpower renewable oil non renewable solar energy renewable non renewable renewable renewable renewable renewable non renewable reading whatisglobalwarming howhasthiscomeabout whataretheeffectsofglobalwarming discussthefollowingquestions whatisglobalwarming theearthisbecomingwarmer 2 howhasthiscomeabout humanactivity burningoffossilfuelsgreenhouseeffect greenhousegases weneedgaseshugequantitiesofextracarbondioxide 3 whataretheeffectsofglobalwarming thesealeveltorise severestorms droughts famines thespreadofdiseases andthedestructionofspecies lookatthemagazinetitlequicklyandtrytofindout howisthetextorganized ithasatitle afirstparagraphthatisinbold themaintext diagram twoquotes whowrotethemagazinearticle whatisthenameofthemagazine 2 whatarenamesofthethreescientistsmentionedinthetext 3 whatdotheythinkaboutglobalwarming 4 whatarethetwographsabout 5 whatisthemaintopicofthearticle readthetextandanswerthequestions whowrotethemagazinearticle whatisthenameofthemagazine sophiearmstrong thenameofthemagazineisearthcare 2 whatarenamesofthethreescientistsmentionedinthetext theyaredr janicefoster charleskeelingandgeorgehambley 3 whatdotheythinkaboutglobalwarming dotheyagreewithoneanother theydon tagreewitheachother dr janicefosterthinkstheeffectscouldbeveryserious georgehambleythinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences charleskeelingbelievesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreaseincarbondioxide 4 whatarethetwographsabout graph1showsthetemperatureincreaseofonedegreefahrenheitbetween1860to2000 graph2isaboutthecarbondioxidecontentintheatmosphere 1957 1997 5 whatisthemaintopicofthearticle globalwarming thewarmingoftheearth readthetextcarefullyandsumupthemainideaofeachpart partone para1 introduceadebateovertheissueofglobalwarming parttwo para2 3 illustrate explain howglobalwarmingcomesabout partthree para4 8 listtwodifferentattitudesamongscientiststowardsglobalwarming partfour para9 it suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot whatskillsareusedinthefourparts part1part2part3part4 usingaquestion leavingreaderstothinkovertheissuegivingexamples makingcontrast comparison givingexamples usinggraphs explanationraisingaquestion listentothetape arethefollowingstatementstrueorfalse ifitistrue writea t ifitisfalse writea f andthenexplainwhyitisfalse thetemperaturelastcenturydidn tincreasemuch everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans janicefosterbelievesthatglobalwarmingiscausedbyburningfossilfuels naturalgasisagreenhousegas carbondioxideisabyproductofburningfossilfuels f f t f t 6peopleacceptcharleskeeling sdatabecausehetookaccuratemeasurements 7floodingcouldbeoneoftheeffectsoffutureglobalwarming 8georgehambleybelievesscientistsarejustguessingabouttheeffectsofglobalwarming 9georgehambleyisworriedabouttheeffectsofcarbondioxideonplant