高中英语 unit 4 warming up and reading课件 新人教版选修6 课件VIP免费

Unit4GlobalwarmingenergysourcesWedependonenergytodomanythingsinourdailylives.Forexample,energylightsourcitiesandheatsourbuildings.Makealistofthingsthatuseenergyinyourhome,inyourschool,oranyotherplacesyoucanthinkof.stovelightthingsthatuseenergyinyourhomemicro-waveovencassetteplayerheatingtelevisionhairdryervideoplayerfridgecomputerwashingmachinestoveWindenergyisusedaspowertoproduceelectricity.Windmillswhereelectricityisproducedbyburningcoals.Thecoalpowerstationsinwhichoilisrefinedandmadepure.TheOilRefineriesafacilitydesignedtoconvertnuclearenergyintoelectricity.Anuclearpowerplantontheroofofahouseonabrightsunnydayareusedtocollectsolarenergy,makingyourhousewarmorheatingyourwater.Solarpanelsareusedtokeepbackwaterandraiseitslevelforirrigationorforproducingelectricity,etc.TheHydro-electricdamsGuessit!UraniumOre(铀矿石)Theelementuraniumdoesnotoccurinpureforminnaturebutisfoundinmineralssuchascarnotite（钒钾铀矿）,picturedhere.Whatsourceofenergy?Geysers(间歇泉)Geothermal(地热的)EnergyPlantAnenergysourceis“renewable”whensuppliesofitneverrunoutand“non-renewable”whenonedaytheywillrunout.Whichenergysourcesonyourlistarerenewableandwhicharenon-renewable?DiscussThingsthatuseenergyinyourhomeSourcesofenergyRenewable/non-renewablelightheatingtelevisioncassetteplayervideoplayercomputerfridgestovewashingmachinehairdryercoaloilnaturalgaswind(windpower)sun(solarenergy)uranium(nuclearenergy)water(hydro-electricpower)plantwaste(biomassenergy)hotspringorgeysers(geothermalenergy)thesea(tidalenergy)non-renewablenon-renewablenon-renewablerenewablerenewablenon-renewablerenewablerenewablerenewablerenewableWhatarethesebuildingsmadeofandwhatistheirpurpose?Theyaremadeofglassandplantscangrowinitwhenitiscoldoutside.Howdoesitwork?Theglasstrapstheheatfromthesun,makingtheairwarmsothatplantscangrowbetter.Greenhousegases!What’sgreenhousegaseseffect?Greenhousegasesperformthesamefunctionastheglassinagreenhouse---Theytraptheheatofthesunandkeeptheairsurroundingtheearthwarm.Itiscalledthegreenhouseeffect.TheEarthIsBecomingWarmer–ButDoesItMatter?FastReadingGlanceatthearticleandanswerthequestion.Ithasatitle,afirstparagraphthatrunsacrossthepageandisinbold,themaintextintwocolumns,graphs/diagrams,twoquotes.Whatisthestructureofamagazinelikethisandhowisthetextorganized?ReadingcomprehensionReadthearticleagainandfinishcomprehendingonpage27SophieArmstrongwrotethemagazinearticle.Thenameofthemagazineis“Earthcare”.2.Whatarethenamesofthethreescientistsmentionedinthearticle?TheyareDr.JaniceFoster,CharlesKeelingandGeorgeHambley.1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?3.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?Therearesomeverydifferentattitudesamongscientiststowardsthisissue.Somethinktheeffectswillbeterrible,whilesomeothersbelievethatweshouldnotworryaboutit.4.Whatarethetwographsabout?Graph1showsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.Graph2showsthecarbondioxidecontentintheatmospherefrom1957to1997.Graph1:Graph2:5.Whatisthemaintopicofthearticle?Globalwarming/Thewarmingoftheearth.1.Thetemperaturelastcenturydidn’tincreasemuch.2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.3.JaniceFosterbelievesthatglobalwarmingiscausedbyburningfossilfuels.4.Naturalgasisagreenhousegas.5.Carbondioxideisabyproductofburningfossilfuels.6.PeopleacceptCharlesKeeling’sdatabeca...