unit 4《global warming》warming up and reading i

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1、Unit4GlobalWarmingenergysourcesWedependonenergytodomanythingsinourdailylives.Forexample,energylightsourcitiesandheatsourbuildings.Makealistofthingsthatuseenergyinyourhome,inyourschool,oranyotherplacesyoucanthinkof.stovelightthingsthatuseenergyinyourhomemicro-waveovencassetteplayerheatingtelevisionh

2、airdryervideoplayerfridgecomputerwashingmachinestoveWindenergyisusedaspowertoproduceelectricity.Windmillswhereelectricityisproducedbyburningcoals.Thecoalpowerstationsinwhichoilisrefinedandmadepure.TheOilRefineriesafacilitydesignedtoconvertnuclearenergyintoelectricity.Anuclearpowerplantontheroofofah

3、ouseonabrightsunnydayareusedtocollectsolarenergy,makingyourhousewarmorheatingyourwater.Solarpanelsareusedtokeepbackwaterandraiseitslevelforirrigationorforproducingelectricity,etc.TheHydro-electricdamsAnenergysourceis“renewable”whensuppliesofitneverrunoutand“non-renewable”whenonedaytheywillrunout.Wh

4、ichenergysourcesonyourlistarerenewableandwhicharenon-renewable?DiscussThingsthatuseenergyinyourhomeSourcesofenergyRenewable/non-renewablelightheatingtelevisioncassetteplayervideoplayercomputerfridgestovewashingmachinehairdryercoaloilnaturalgaswind(windpower)sun(solarenergy)uranium(nuclearenergy)wat

5、er(hydro-electricpower)plantwaste(biomassenergy)hotspringorgeysers(geothermalenergy)thesea(tidalenergy)non-renewablenon-renewablenon-renewablerenewablerenewablenon-renewablerenewablerenewablerenewablerenewableWhatarethesebuildingsmadeofandwhatistheirpurpose?Theyaremadeofglassandplantscangrowinitwhe

6、nitiscoldoutside.Howdoesitwork?Theglasstrapstheheatfromthesun,makingtheairwarmsothatplantscangrowbetter.Greenhousegases!What’sgreenhousegaseseffect?Greenhousegasesperformthesamefunctionastheglassinagreenhouse---Theytraptheheatofthesunandkeeptheairsurroundingtheearthwarm.Itiscalledthegreenhouseeffec

7、t.TheEarthIsBecomingWarmer–ButDoesItMatter?FastReadingGlanceatthearticleandanswerthequestion.Ithasatitle,afirstparagraphthatrunsacrossthepageandisinbold,themaintextintwocolumns,graphs/diagrams,twoquotes.Wha