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ID:36268309
大小:1.76 MB
页数:36页
时间:2019-05-07
《unit 4《global warming》warming up and reading i》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
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
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