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1、Welcome Unit4 Warmingupandreading Globalwarming 阿来 Warmingup Wedependonenergytodomanythingsinourdailylives Forexample energylightsourcitiesandheatsourbuildings Makealistofthingsthatuseenergyinyourhome inyourschool oranyotherplacesyoucanthinkof thingsthatuseenergyinourlife heating hairdryer fridge te
2、levision thingsthatuseenergyinourlife washingmachine electromagneticoven electricfan Doyouknowhowenergyisproduced Howmanysourcesofenergycanyoulist Windenergyisusedaspowertoproduceelectricity windmills Electricityisproducedbyburningcoals coalpowerstations Oilisrefinedandmadepure oilrefineries Nuclear
3、energyisconvertedintoelectricity nuclearpowerplant piecesofequipmentonaroofthatcollectsenergyfromsunlightinordertoheatwaterandproduceelectricity solarpanels Waterarekeptbackandraiseditslevelforirrigationorforproducingelectricity hydro electricdams geothermal 地热的 energyplant Electricityisgeneratedfro
4、mhotdryrocks Aretheyrenewableornon renewable windenergy renewable solarenergy renewable hydroelectricpower renewable geothermalenergy renewable tidalenergy renewable biomassenergy renewable nuclearpowerplant non renewable anoilrefinery 精炼厂 non renewable coalpowerstation non renewable naturalgas non
5、renewable uraniumOre 铀矿石 non renewable Whatisthebuildingmadeofandwhatisitusedfor Itismadeofglassandplantscangrowinitwhentheweatheriscoldoutside Pre reading Haveyoueverseenagreenhouse Howdoesitwork Theairinsideiswarmbecausetheglasstraptheheatfromthesunandkeepsitfromescaping Thismakesthegreenhouseheat
6、upandsotheplantscangrowthroughoutthecoldperiod Whatarethe greenhousegases Whatdoyouthinkgreenhousegasesdo What sgreenhouseeffect Greenhousegasesperformthesamefunctionastheglassinagreenhouse theytraptheheatofthesunandkeeptheairsurroundingtheearthwarm greenhouseeffect Globalwarming Thewarmingoftheeart
7、h Skimthetextandfindoutthemaintopicofthearticle CarefulReading Readthetextandanswerthequestions Whowrotethemagazinearticle Whatisthenameofthemagazine Whatarethenamesofthethreescientistsmentionedinthearticle Whatdotheythinkaboutglobalwarming Dotheyagreewithoneanother Whatarethetwographsabout Whatisth
8、emaintopicofthearticle SophieArmstrongwrotethemagazinearticle Thenameofthemagazineis Earthcare 2 Whatarethenamesofthethreescientistsmentionedinthearticle TheyareDr JaniceFoster CharlesKeelingandGeorgeHambley Whowrotethemagazinearticle Whatisthenameofthemagazine 3 Whatdotheythinkaboutglobalwarming Do
9、theyagreewithoneanother Therearesomeverydifferentattitudesamongscientiststowardsthisissue Somethinktheeffectswillbeterrible whilesomeothersbelievethatweshouldnotworryaboutit 4 Whatarethetwographsabout Graph1showsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000 Graph2showsthecarbondioxide
10、contentintheatmospherefrom1957to1997 Choosethebestanswers Whofoundouttheamountofcarbondioxideintheatmospherefrom1957to1997 A Dr JaniceFoster B CharlesKeeling C GeorgeHambley D SophieArmstrong 2 Theauthorprobablyagreesthat A actuallyglobalwarmingisgoodformanB weshoulddonothingabouttheglobalwarmingC c
11、atastropheswillhappeniftheglobekeepsonwarmingD alotremainstobefoundoutabouttheeffectsofglobalwarming Thetemperaturelastcenturydidn tincreasemuch 2 Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans 3 JaniceFosterbelievesthatshecanmeasurethefutureglobalriseintemperature Trueorfalse 4 Th
12、eriseincarbondioxideiscausingasteadyincreaseinglobalwarming 5 GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth 6 Itisclearwhattheeffectsofglobalwarmingwillbe Construction Part1 1 Introduceadebateovertheissueofglobalwarming Mainideaofeachpart A Weshalldosomethingaboutglobalwar
13、ming B Weshalldonothingaboutglobalwarming Debate Ithasatitle afirstparagraphthatrunsacrossthepageandisinbold themaintextintwocolumns graphs diagrams twoquotes Whatisthestructureofamagazinelikethisandhowisthetextorganized ThankYou Whatisthepurposeofthefirstparagraph Tointroducethetopic Whatarethediag
14、ramsfor Toillustratepointsbyprovidingevidence Globalwarming Unit4 OuyangGuangandtheeditorofEarthCare Whoarethewritersoftheletters What sthepurposeofOuyangGuang sletter TogetsomesuggestionsfromEarthCareaboutglobalwarming Readthefirstletterandanswerthequestions WhatareOuyangGuang stwoconcerns Thesecon
15、disthatheisnotsurewheretostartwithhisproject Thefirstisthathefeelsthatindividualcannothaveeffectonhugeenvironmentalproblems WhichisnotthereasonwhyOuyangGuangwritestheletter Heisdoingaprojectonglobalwarming B Hefeelsindividualscanaffecthugeenvironmentalproblems C Heisn tsurewheretostartwithhisproject
16、 D HewantstogetsomesuggestionsfromEarthCare DoesEarthCareagreewithOuyangGuang sopinionthatindividualscanhavenoeffect Why Readthesecondletterandanswerthequestions Whichisnottrueaccordingtotheeditor sletter Together individualscanmakeadifferencetoenvironmentalproblems B Individualsmustputupwithpollution C Manyactivitiesindividualsdocanproducecarbondioxide D Individualscansaveenergytoslowdownglobalwarming Discussion Inpairsmakeaposterforyourschoolthattellsstudentsvariouswaystheycanreducetheamountof
