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

unit4 globalwarming energysources wedependonenergytodomanythingsinourdailylives forexample energylightsourcitiesandheatsourbuildings makealistofthingsthatuseenergyinyourhome inyourschool oranyotherplacesyoucanthinkof stove light thingsthatuseenergyinyourhome micro waveoven cassetteplayer heating television hairdryer videoplayer fridge computer washingmachine stove windenergyisusedaspowertoproduceelectricity windmills whereelectricityisproducedbyburningcoals thecoalpowerstations inwhichoilisrefinedandmadepure theoilrefineries afacilitydesignedtoconvertnuclearenergyintoelectricity anuclearpowerplant ontheroofofahouseonabrightsunnydayareusedtocollectsolarenergy makingyourhousewarmorheatingyourwater solarpanels areusedtokeepbackwaterandraiseitslevelforirrigationorforproducingelectricity etc thehydro electricdams guessit uraniumore 铀矿石 theelementuraniumdoesnotoccurinpureforminnaturebutisfoundinmineralssuchascarnotite 钒钾铀矿 picturedhere whatsourceofenergy geysers 间歇泉 geothermal 地热的 energyplant anenergysourceis renewable whensuppliesofitneverrunoutand non renewable whenonedaytheywillrunout whichenergysourcesonyourlistarerenewableandwhicharenon renewable discuss light heating television cassetteplayer videoplayer computer fridge stove washingmachine hairdryer coal oil naturalgas wind windpower sun solarenergy uranium nuclearenergy water hydro electricpower plantwaste biomassenergy hotspringorgeysers geothermalenergy thesea tidalenergy non renewable non renewable non renewable renewable renewable non renewable renewable renewable renewable renewable whatarethesebuildingsmadeofandwhatistheirpurpose theyaremadeofglassandplantscangrowinitwhenitiscoldoutside howdoesitwork theglasstrapstheheatfromthesun makingtheairwarmsothatplantscangrowbetter greenhousegases what sgreenhousegaseseffect greenhousegasesperformthesamefunctionastheglassinagreenhouse theytraptheheatofthesunandkeeptheairsurroundingtheearthwarm itiscalledthegreenhouseeffect theearthisbecomingwarmer butdoesitmatter fastreading glanceatthearticleandanswerthequestion ithasatitle afirstparagraphthatrunsacrossthepageandisinbold themaintextintwocolumns graphs diagrams twoquotes whatisthestructureofamagazinelikethisandhowisthetextorganized readingcomprehension readthearticleagainandfinishcomprehendingonpage27 sophiearmstrongwrotethemagazinearticle 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 sdatabecausehetookaccuratemeasurements readthearticlecarefully telltrueorfalse t t f t t f detailed reading readthearticleindetailsandfinishthefollowingtask listening 1 whofoundouttheamountofcarbondioxideintheatmospherefrom1957to1977 a dr janicefoster b charleskeeling c georgehambley d sophiearmstrong listentothereadingpassageanddosomechoices 2 buttherearesomeverydifferentattitudesamongscientiststowardsthisissue issue heremeansthesameastheonein a iboughtthenewstampthedayofitsissue b theyaretalkingaboutoneofthekeyissuesintheelectioncampaign c thegovernmentisexpectedtoissueastatementabouttheelection d themagazinehas12issueseachyear 3 theauthorprobablyagreesthat a actuallyglobalwarmingisgoodforman b weshoulddonothingabouttheglobalwarming c catastropheswillhappeniftheglobekeepsonwarming d alotremainstobefoundoutabouttheeffectsofglobalwarming questionnaires i 1 doessophiearmstrongsupportaclearopinion 2 doesgeorgehambleybelievethatweshouldworrymuchabouttheglobalwarming no hedoesn tstateitclearly no hedoesn t 3 howhastheglobalwarmingcomeabout humanactivity burningoffossilfuels greenhouseeffect greenhousegases weneedthosegases hugequantitiesofextracarbondioxide from1957to1997 fromaround315partspermilliontoaround370partspermillion 4 whataretheeffectsofglobalwarming encourageagreaterrangeofanimals thesealeveltorise severestorms droughts famines thespreadofdiseases anddestructionofspecies makeplantsgrowfaster cropswillproducemore mainidea part1 para1 introduceadebateovertheissueofglobalwarming part2 para2 part3 para3 8 part4 para9 illustratehowglobalwarmingcomesabout listtwodifferentattitudesamongscientiststowardsglobalwarming it suptoreaderstothinkanddecidewhetherpeopleshoulddosthaboutglobalwarmingornot 4parts 1 whatisthepurposeoftheparagraphthatisinbold tointroducethetopic toillustrate 阐述 pointsbyprovidingevidence 2 whatarethediagramsfor questionnaires ii 3 whyaretheretwoquotes becausetheyareimportantorinterestingpoints theiraimistoattractyourattentionandtomakeyoureadthem andthereforetomakeyouinterestedenoughtoreadthewholearticle itfun