高中英语 Unit 4 Global warming warming up and reading 2课件 新人教版选修6.ppt

unit4globalwarming unit4globalwarming savetheearth period1 2warmingupandreadingi energysources internationalrelations money technology whichisthemostimportanttoacountry manpower 2 sourcesofenergy ie coal wedependonenergytodomanythingsinourdailylives forexample energylightsourcitiesandheatsourbuildings makealistof 1 thingsthatuseenergyaroundusoratanyotherplaces ie light thingsthatuseenergyaroundusoratanyotherplaces inahouse mobilepentium4 hairdryer inductioncooker windmills renewable what renewable what renewable acoalpowerstation non renewable what renewable anoilrefinery 精炼厂 non renewable what renewable anuclearpowerplant non renewable what renewable ahydro electricdam renewable geothermal 地热的 energyplant coaloilnaturalgasuranium 化 铀 wind windpower sun solarenergy water hydro electricpower plantwaste植物性废物 biomassenergy生物团能量 hotspringsorgeysers间歇泉 geothermalenergy thesea tidalenergy潮汐能 fossilfuels non renewable renewable whatarefossilfuels fossilfuelsareancientanimalandplantmaterialbelowthesurfaceoftheearthwithahighcarboncontent suchascoal oilandnaturalgas whichcanbeburnttoproduceenergy theyarealsoknownasnon renewableenergybecauseoncetheyarerunoutof runout theycannotberenewed whatarethesebuildingsmadeofandwhataretheycalled glass agreenhouseisusedforgrowingplants especiallyduringcoldweather greenhouse what stheuse theglasstrapstheheatfromthesun makingtheairwarmsothatplantscangrowbetter howdoesitwork whataregreenhousegases intheatmospheresurroundingtheearththerearegases whicharecalled greenhousegases mainlyincluding andwatervapor 水蒸气 carbondioxide carbondioxidemethanewatervapor whatdoyouthinkgreenhousegasesdo greenhousegasesperformthesamefunctionasthe inagreenhouse they theheatfromthesunandtherefore theearth itisknownas nowadaysourearthisbecoming greenhouseeffect trap warm warmerandwarmer glass p26theearthisbecomingwarmer butdoesitmatter fastreading thisarticleisfrom a anenviromentalmagazine b adiaryc anoveld astory ithasatitle afirstparagraphthatisinbold themaintextintwocolumns 2graphs twoquotes引用 引号 whatisthestructureofamagazinelikethisandhowisthetextorganized 2 whatisthepurposeoftheparagraphthatisinbold tointroducethetopic seethenextpage 3 whatarethegraphsfor questionnaires i 1 whatisthepurposeofthetitle totellusthetopicofglobalwarming 4 whyaretheretwoquotes becausetheyareimportantorinterestingpoints theiraimistoattractyourattentionandtomakeyoureadthem andthereforetomakeyouinterestedenoughtoreadthewholearticle let slearnthemaintext howmanyparagraphsdoesthemaintextconsistof anditcanbedevidedinto4parts pleaselineoutthecorrectnumbersinthefollowingtable introducetheissueofglobalwarming raisingaquestion提出问题 illustrate举例说明 图解howglobalwarmingcomesabout para givingexamples举例子 usinggraphs列图表 explanation作诠释 listtwodifferentattitudestoglobalwarming para givingexamples举例子makingcontrast作比较 whetherpeopleshoulddosomethingaboutglobalwarmingornot para 1 2 4 5 6 leavingaquestion thestructureofthetext para 1 para 2 4 i ii para 5 iii para 6 iv introduction body conclusion learning theorganizationofanexpositoryessay introduction atitle body conclusion detailed reading readthearticleindetailsandfinishthefollowingtask readthepassageagaintofindouttheanswerstothequestionsinex 1onp27 task1 1 whowrotethemagazinearticle whatisthenameofthemagazine 2 whatarethetwographsabout sophiearmstrong earthcare task2 readsomethingmoreaboutthe2graphs let scheckit the1stgraphshowstheglobalt between1860and thetemperaturei anddecreasedoverthisperiodbutonthewholeiti byaroundonedegreefahrenheit duringthistime theearthreacheditsl temperatureinabout1910anditshighestin therewasasteadyi inthetemperatureduringthe20yearsafter1980 wecanseefromthegraphthattheearthhasbecomew sinceearlylastcentury emperature 2000 ncreased ncreased owest 2000 ncrease armer the2ndgraph the2ndgraphshowstheamountofcdintheatmospherefromto1997 theco2csteadilyioverthisforty yearperiod itwentupfrom315topartspmillion arbon ioxide 1957 ontent ncreased 370 er tip whilereadingagraph you dbetterpayattentiontothenumbers evidence evidenceorphenomenon question whatarethe2graphsfor 4 whatdotheythinkaboutglobalwarming dotheyagreewithoneanother 3 whatarethenamesofthethreescientistsmentionedinthearticle drjanicefoster charleskeeling georgehambley someverydifferentattitudesamongscientiststowardsthisissue task3 thedifferentideasbetweendr janicefoster georgehambley goup catastrophe veryserious positive produce agreaterrangeofanimals risebyseveralmetres severestorms droughts famines thespreadofdiseases thedisppearanceofspecies otherpeople sidea floods discussion whateffectsmaybedoesglobalwarminghaveontheearth badeffects maybe 1 thesealevelwillrise maybe 2 therewillbesomedisasters suchas flood drought famine forestfire goodeffects 1 makeplantsgrowfaster 2 cropswillproducemore 3 encourageagreaterrangeofanimals debate a b a weshalldosomethingaboutglobalwarming b weshalldonothingaboutglobalwarming pk agreement disagreement exactly allright that sright that sagoodidea ithinkso icouldn tagreemore that sexactlymyopinion idon tthinkso i mafraidnot i mafraididisagreewithyou i mafraidihaveadifferentopinion ithinkyouareabsolutelywrong summary skimoverthepassage andtellwhatyouhavelearntinclass trytotalkingeneralterms概括地 一般地说rathert