人教版 选修六 Unit 4 Global warmingReading课件（共23张PPT）.ppt

reading theearthisbecomingwarmer butdoesitmatter fastreading 1 glanceatthetextandanswerthequestion ithasatitle afirstparagraphthatrunsacrossthepageandisinbold themaintextintwocolumns graphs diagrams twoquotes whatisthestructureofamagazinelikethisandhowisthetextorganized fastreading 2 readthetextfastandanswerthequestionsonpage27 sophiearmstrongwrotethemagazinearticle thenameofthemagazineis earthcare 2 whatarethenamesofthethreescientistsmentionedinthearticle theyaredr janicefoster charleskeelingandgeorgehambley 1 whowritethemagazinearticle whatisthenameofthemagazine 3 whatdotheythinkaboutglobalwarming dotheyagreewithoneanother theydon tagreewitheachother somethinktheeffectswillbeterrible whilesomeothersbelievethatweshouldnotworryaboutit dr janicefosterthinkstheeffectsofglobalwarmingcouldbeveryserious georgehambleythinksglobalwarmingwillbemildwithfewbadenvironmentconsequences 4 whatarethetwographsabout graph1showsthetemperatureincreaseofonedegreefahrenheitbetween1860to2000 5 whatisthemaintopicofthearticle globalwarming thewarmingoftheearth graph2isaboutthecarbondioxidecontentintheatmospherefrom1957to1997 2 choices 1 whofoundouttheamountofcarbondioxideintheatmospherefrom1957to1977 a dr janicefoster b charleskeeling c georgehambley d sophiearmstrong 2 buttherearesomeverydifferentattitudesamongscientiststowardsthisissue issue heremeansthesameastheonein a iboughtthenewstampthedayofitsissue b theyaretalkingaboutoneofthekeyissuesintheelectioncampaign c thegovernmentisexpectedtoissueastatementabouttheelection d themagazinehas12issueseachyear 3 theauthorprobablyagreesthat a actuallyglobalwarmingisgoodforman b weshoulddonothingabouttheglobalwarming c catastropheswillhappeniftheglobekeepsonwarming d alotremainstobefoundoutabouttheeffectsofglobalwarming 3 yesorno 1 doessophiearmstrongsupportaclearopinion 2 doesgeorgehambleybelievethatweshouldworrymuchabouttheglobalwarming no hedoesn tstateitclearly no hedoesn t trueorfalse readthearticlecarefullyandfinishpart2onpage27 1 thetemperaturelastcenturydidn tincreasemuch 2 everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans 3 janicefosterbelievesthatglobalwarmingiscausedbyburningfossilfuels 4 naturalgasisagreenhousegas 5 carbondioxideisabyproductofburningfossilfuels f f t f t 6 peopleacceptcharleskeeling sdatabecausehetookaccuratemeasurements 7 floodingcouldbeoneoftheeffectsoffutureglobalwarming 8 georgehambleybelievesscientistsarejustguessingabouttheeffectsofglobalwarming 9 georgehambleyisworriedabouttheeffectsofcarbondioxideonplantgrowth10 itisclearwhattheeffectsofglobalwarmingwillbe t t t f f 1 howhastheglobalwarmingcomeabout 2 whataretheeffectsofglobalwarming carefulreading 1 readthetextagainandanswerthequestions 1 howhastheglobalwarmingcomeabout humanactivity burningoffossilfuels greenhouseeffect greenhousegases weneedthosegases hugequantitiesofextracarbondioxide from1957to1997 fromaround315partspermilliontoaround370partspermillion 2 whataretheeffectsofglobalwarming encourageagreaterrangeofanimals thesealeveltorise severestorms droughts famines thespreadofdiseases anddestructionofspecies makeplantsgrowfaster cropswillproducemore thedifferentideasbetweendr janicefoster georgehambley goup catastrophe veryserious positive produce agreaterrangeofanimals 1 whatisthepurposeoftheparagraphthatisinbold tointroducethetopic toillustrate 阐述 pointsbyprovidingevidence 2 whatarethediagramsfor thirdreading 3 whyaretheretwoquotes becausetheyareimportantorinterestingpoints theiraimistoattractyourattentionandtomakeyoureadthem andthereforetomakeyouinterestedenoughtoreadthewholearticle itfunctionsasaconclusionbyaskingthereadertoreflectonthemajorthemeofthetextandtopredictwhatmighthappeninthefuture 4 whatisthepurposeofthelastparagraphofthearticle mainidea part1 para1 introduceadebateovertheissueofglobalwarming part2 para2 part3 para3 8 part4 para9 illustratehowglobalwarmingcomesabout listtwodifferentattitudesamongscientiststowardsglobalwarming it supto