人教版 選修六 Unit 4 Global warmingReading課件（共40張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 沼氣 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是不及物短語 意為 發(fā)生 comeacrosscomearoundcomeintobeingcomeintoeffectcomeoutcomedowntoearth 偶爾遇到來訪 蘇醒出現(xiàn) 產(chǎn)生開始生效出版 長(zhǎng)出 顯出回到現(xiàn)實(shí)中來 1 it salready10o clock iwonderhowit thatshewastwohourslateonsuchashorttrip 湖北2006 a cameoverb cameoutc cameaboutd cameup c 來訪 出現(xiàn) 到來 2 pleasetellmehowtheaccident iamstillinthedark 2005江西 a camebyb cameoutc cametod cameabout d 得到 獲得 蘇醒 涉及 談到 3 thereisnodoubtthattheearthisbecomingwarmer thereisnodoubtthat thereissomedoubtwhether thereissomedoubtwhetherjohnwillcomeontime someresearchersbelievethatthereisnodoubtthatacureforaidswillbefound 4 resultin導(dǎo)致 造成 leadto resultfrom由 引起 產(chǎn)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結(jié)果asaconsequenceof由于 inconsequenceof由于 因?yàn)?的緣故taketheconsequenceof承擔(dān) 后果 ioverslept and 因此 iwaslateforwork 由于 yourbadwork iamforcedtodismissyou youmust 承擔(dān)后果 yourcarelessness inconsequence asaconsequenceof inconsequenceof taketheconsequenceof 6 buildup 1 hewantedtobuildupalargecompany 2 promotephysicalcultureandbuildupthepeople shealth 3 don tbuildupastory 4 thesingerhasbeenbuiltupintoagreatsuccess 建立 增強(qiáng) 編造 吹捧 贊揚(yáng) 建立 增強(qiáng) 編造 吹捧 贊揚(yáng) buildupfromnothing白手起家buildupapowerfulphysique鍛煉出強(qiáng)健的體格 典型例題分析 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 對(duì) 漫不經(jīng)心 你的貢獻(xiàn)很重要 引起全球溫度上升 依賴礦物原料 有影響 有作用 一種自然現(xiàn)象 忍受污染 讓一種電器設(shè)備開著 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 有很大差別 有很大不同 2 有很大的關(guān)系 影響makesome nodifferenceto對(duì) 有些 沒有關(guān)系 thatmakesnodifferencetome exercisecanmakeagreatdifferencetoyourhealth 2 putupwith putup thatwoman asahousewife hasalottoputupwith 忍受 忍耐 受苦