文档介绍：Unit8GlobalWarming*Lesson1ContentsPre-readingQuestionsBackgroundWordStudyAbouttheAuthorAGlobalPicture*Pre-readingQuestionsWhatdoyouknowaboutglobalwarming?Whatisthecauseofglobalwarming?WhatchangescouldthegreenhouseeffectcreateintheEarth’sclimate?Whatelsedoyouknowaboutenvironmentalprotection?*TestYourKnowledgeWheredogreenhousegasestrapenergy??’sclimatebeenchanging??TheIndustrialRevolution.*,howmuchpercenthavediedout?98%.Whyhaveplantsandanimalsbeenabletoadapttochangesinclimateinthepast??Saveenergy;planttrees;recycleetc.*efrom????Topreventtheharmfulultravioletraysfromreachingtheearth.*BackgroundInformationEcologyandEcosystemSymbioticRelationshipTheGreenhouseEffectRainForestsandBiodiversityTheFoodChainAnimalExtinctionPollutionAcidRainOzoneElNino*GlobalWarming&ClimateChangeGLOBALWARMINGistheincreaseoftheEarth’saveragesurfacetemperatureduetoabuild--termchangesinclimate,includingaveragetemperatureandrainfall.*TheGreenhouseEffect*TheSun’senergypassesthroughthecar’(heat)istrappedinsidethecarandcannotpassbackthroughthewindshield,*