人教版 选修六 Unit 4 Global warmingReading课件（共40张PPT）.ppt

reading theearthisbecomingwarmer butdoesitmatter what swrongwithourearth pre reading greenhouse 1 whatisagreenhousemadeofandusedfor 2 howdoesitwork 3 whatarethe greenhousegases 4 whatdoyouthinkgreenhousegasesdo agreenhouseismadeofglassandisusedforgrowingplants especiallyduringcoldweather 1 whatisagreenhousemadeofandusedfor 2 howdoesitwork theairinsideiswarmbecausetheglasstrapstheheatfromthesunandkeepsitfromescaping thismakesthegreenhouseheatupandsotheplantscangrowthroughoutthecoldperiod 3 whatarethe greenhousegases 4 whatdoyouthinkgreenhousegasesdo intheatmospheresurroundingtheearththerearegases whicharecalled greenhousegases includingcarbondioxide methane 甲烷 沼气 andwatervapor theytrapheatfromthesunandthereforewarmtheearth what swrongwithourearth methane carbondioxide watervapour greenhouseeffect thegreenhouseeffectisanaturallyoccurringprocessthataidsinheatingtheearth ssurfaceandatmosphere itresultsfromthefactthatcertainatmosphericgases suchascarbondioxide watervapor andmethane areabletochangetheenergybalanceoftheplanetbyabsorbinglongwaveradiationemittedfromtheearth ssurface withoutthegreenhouseeffectlifeonthisplanetwouldprobablynotexist so theearthisbecomingwarmerandwarmer butdoesitmatter yes no maybe thesealevelwillrise maybe therewillhavesomedisasters suchas flood drought famine forestfire readthetextasfastaspossibleandanswerthequestions whowrotethemagazinearticle whatisthenameofthemagazine 2 whatarenamesofthethreescientistsmentionedinthetext 3 whataretheythinkaboutglobalwarming 4 whatarethetwographsabout 5 whatisthemaintopicofthearticle skimming whowrotethemagazinearticle whatisthenameofthemagazine sophiearmstrong thenameofthemagazineisearthcare 2 whatarenamesofthethreescientistsmentionedinthetext theyaredr janicefoster charleskeelingandgeorgehambley 3 whatdotheythinkaboutglobalwarming dotheyagreewithoneanother theydon tagreewitheachother dr janicefosterthinkstheeffectscouldbeveryserious georgehambleythinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences charleskeelingbelievesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreaseincarbondioxide itshowsthatthetemperatureincreasedonedegreefahrenheitfrom1860to2000 4 whatarethetwographsabout thisgraphshowsthecarbondioxidecontentintheatmosphereincreasedsteadilyfrom1957to1997 4 whatisthemaintopicofthearticle globalwarming thewarmingoftheearth thetemperatureinthelastcenturydidn tincreasemuch everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans janicefosterbelievesthatglobalwarmingiscausedbyburningfossilfuels naturalgasisagreenhousegas carbondioxideisabyproductofburningfossilfuels t t f t t scanning or 6peopleacceptcharleskeeling sdatabecausehetookaccuratemeasurements 7floodingcouldbeoneoftheeffectsoffutureglobalwarming 8georgehambleybelievesscientistsarejustguessingabouttheeffectsofglobalwarming 9georgehambleyisworriedabouttheeffectsofcarbondioxideonplantgrowth 10itisclearwhattheeffectsofglobalwarmingwillbe t t t f f carefulreading 1 readthetextcarefullyandsumupthemainideaofeachpart 2 thedifferentideasbetweendr janicefoster georgehambley part1 para1 part2 para2 3 part3 para4 6 part4 para7 partone para1 introduceadebateovertheissueofglobalwarming parttwo para2 3 illustrate explain howglobalwarmingcomesabout listtwodifferentattitudesamongscientiststowardsglobalwarming it suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot partthree para4 6 partfour para7 1 readthetextcarefullyandsumupthemainideaofeachpart 2 thedifferentideasbetweendr janicefoster georgehambley goup catastrophe veryserious positive produce agreaterrangeofanimals languagepoints difficultandimportantsentences itishumanactivitythathascausedthisglobalwarmingratherthanarandombutnaturalphenomenon allscientistssubscribetotheviewthattheincreaseintheearth stemperatureisduetotheburningoffossilfuelslikecoal somebyproductsofthisprocessarecalled greenhouse gases themostimportantoneofwhichiscarbondioxide 4 thereisanaturalphenomenonthatscientistscallthe greenhouseeffect 5 itmeansthatmoreheatenergytendstobetrappedintheatmospherecausingtheglobaltemperaturetogoup 6 itwasascientistcalledcharleskeeling whomadeaccuratemeasurementsoftheamountofcarbondioxideintheatmospherefrom1957to1997 7 theyalsoagreethatitistheburningofmoreandmorefossilfuelsthathasresultedinthisincreaseincarbondioxide 9 ontheotherhand therearethose likegeorgehambley whoareopposedtothisview believethatweshouldnotworryabouthighlevelsofcarbondioxideintheair 8 hesaysthatoverthenext100yearstheamountofwarmingcouldbeaslowas1to1 5degreescelsius butitcouldbeashighas5degrees 1 ratherthan而不是 sheisacareerwomanratherthanahousewife itoughttobeyouratherthanmethatsigntheletter 2 sohowhasthiscomeaboutanddoesitmatter comeabout是不及物短语 意为 发生 comeacrosscomearoundcomeintobeingcomeintoeffectcomeoutcomedowntoearth 偶尔遇到来访 苏醒出现 产生开始生效出版 长出 显出回到现实中来 1 it salready10o clock iwonderhowit thatshewastwohourslateonsuchashorttrip 湖北2006 a cameoverb cameoutc cameaboutd cameup c 来访 出现 到来 2 pleasetellmehowtheaccident iamstillinthedark 2005江西 a camebyb cameoutc cametod cameabout d 得到 获得 苏醒 涉及 谈到 3 thereisnodoubtthattheearthisbecomingwarmer thereisnodoubtthat thereissomedoubtwhether thereissomedoubtwhetherjohnwillcomeontime someresearchersbelievethatthereisnodoubtthatacureforaidswillbefound 4 resultin导致 造成 leadto resultfrom由 引起 产生 theaccidentresulted thedriver scarelessness whichresulted thedeathoftwopassengers from in itisanillnessthatcanresult totaldeafifleftuntreated aofbfromcindto c theexperiment thediscoveryofacureforcancer a resultedinb leadtoc resultedfromd wascausedby2 heslippedandbrokehisleg hewillhavetobeawayfromschoolfortwoorthreemonths a resultinginb withtheresultthatc asaresultd theresultisthat a c 5 consequence inconsequence因此asaconsequence结果asaconsequenceof由于 inconsequenceof由于 因为 的缘故taketheconsequenceof承担 后果 ioverslept and 因此 iwaslateforwork 由于 yourbadwork iamforcedtodismissyou youmust 承担后果 yourcarelessness inconsequence asaconsequenceof inconsequenceof taketheconsequenceof 6 buildup 1 hewantedtobuildupalargecompany 2 promotephysicalcultureandbuildupthepeople shealth 3 don tbuildupastory 4 thesingerhasbeenbuiltupintoagreatsuccess 建立 增强 编造 吹捧 赞扬 建立 增强 编造 吹捧 赞扬 buildupfromnothing白手起家buildupapowerfulphysique锻炼出强健的体格 典型例题分析 1 itwaslastnight isawthefilmstarwars a whob whenc thatd which c 2 itistenyears missgreenreturnedtocanada a thatb whenc sinced as 3 itwasthisvillage iwasbroughtup a whereb thatc onwhichd which 4 itwasinthisvillage iwasbroughtup a whereb thatc onwhichd which c a b usinglanguage whatcanwedoaboutglobalwarming phrases renewableresources onbehalfofmyschool becasualabout yourcontributioncounts causetheglobaltemperaturetogoupdependfossilfuelsmakeadifferenceanaturalphenomenonputupwithpollutionleaveanelectricalapplianceon 可再生能源 代表我校 对 漫不经心 你的贡献很重要 引起全球温度上升 依赖矿物原料 有影响 有作用 一种自然现象 忍受污染 让一种电器设备开着 whoisthewriter 2 whatisthepurposeofthee mail 3 doesearthcareagreewithouyangguang sopinionthatindividualscanhavenoeffect skimming astudentnamedouyangguang hisopinionisthat asanindividual hecanhavenoeffectonenvironmentalproblems no earthcaredoesnotagree scanthesecondletterandlistearthcare ssuggestions scanning earthcare ssuggestions turnelectricalappliancesoffwhennotusingthem don tturnuptheheat putonmoreclothes walkorrideabike don tdrive recyclecans bottles plasticbagsandnewspapers buythingsmadefromrecycledmaterials buyproductsthatuselessenergy planttrees talkwithfamilyandfriendsaboutglobalwarming languagepoints 1 makeadifference makeadifference 1 有很大差别 有很大不同 2 有很大的关系 影响makesome nodifferenceto对 有些 没有关系 thatmakesnodifferencetome exercisecanmakeagreatdifferencetoyourhealth 2 putupwith putup thatwoman asahousewife hasalottoputupwith 忍受 忍耐 受苦