现代大学英语精读At War with the Planet.ppt

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1、LessonThreeAtWarwiththePlanet-----BarryCommonerClass：1106Group：2Names：Date：4.11.2014Para1：Thisparttellsustwoworldspeopleliveinandpeopleholddifferentattitudestowardsthem.notforwhatoccursinthenaturalworldweacceptresponsibilityforeventsofourownworldactsofGodPara2：Now，onaplanetarysc

2、ale,thisdivisionhasbeenbreached.Naturalphenomena①.acontinent-sizedholeintheEarth'sprotectiveozonelayer.②.globalwarming③.droughts④.floods⑤.heatwavesreason:becomeunwittingactsofmanpara3:TheprotendingglobaleventschangetherelationshipbetweentheplanetEarthandit'sstar,thesun.TwoForces

3、Gravity(anearlysteadyforce)Solarradiation(avaststreamofenergy)fixestheplanet'spatharoundthesun.bathestheEarth'ssurfacefluctuatingfromdaytonightandseasontoseason.expressionSolarenergyfuelstheenergy-requiringprocessesoflife.creatstheplanet'sclimategovernsthegradualevolutionandthec

4、urrentbehavior.Para3SolarRadiationEarthFiveThankYou！