高中英语 unit 4 warming up and reading课件 新人教选修6.ppt

Unit4energysourcesstoveWindenergyisusedaspowertoproduceelectricity.whereelectricityisproducedbyburningcoals.inwhichoilisrefinedandmadepure.afacilitydesignedtoconvertnuclearenergyintoelectricity.ontheroofofahouseonabrightsunnydayareusedtocollectsolarenergymakingyourhousewarmorheatingyourwater.areusedtokeepbackwaterandraiseitslevelforirrigationorforproducingelectricityetc.Guessit!Whatsourceofenergy?Geothermal(地热的)EnergyPlantAnenergysourceis“renewable”whensuppliesofitneverrunoutand“non-renewable”whenonedaytheywillrunout.Whichenergysourcesonyourlistarerenewableandwhicharenon-renewable?ThingsthatuseenergyinyourhomeWhatarethesebuildingsmadeofandwhatistheirpurpose?Howdoesitwork?Greenhousegases!TheEarthIsBecomingWarmer–ButDoesItMatter?FastReadingIthasatitleafirstparagraphthatrunsacrossthepageandisinboldthemaintextintwocolumnsgraphs/diagramstwoquotes.ReadingcomprehensionSophieArmstrongwrotethemagazinearticle.Thenameofthemagazineis“Earthcare”.3.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?4.Whatarethetwographsabout?5.Whatisthemaintopicofthearticle?1.Thetemperaturelastcenturydidn’tincreasemuch.2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.3.JaniceFosterbelievesthatglobalwarmingiscausedbyburningfossilfuels.4.Naturalgasisagreenhousegas.5.Carbondioxideisabyproductofburningfossilfuels.6.PeopleacceptCharlesKeeling’sdatabecausehetookaccuratemeasurements.Detailed-Readinglistening2."Buttherearesomeverydifferentattitudesamongscientiststowardsthisissue.”“issue"heremeansthesameastheonein___.A.Iboughtthenewstampthedayofitsissue.B.Theyaretalkingaboutoneofthekeyissuesintheelectioncampaign.C.Thegovernmentisexpectedtoissueasta