Unit4Globalwarming----Doesitmatter预习检测•I.Enjoytranslation•trytosleepinspiteofthenoise.•Don’tgetintothehabitofsmoking.•Ithinkhissuccesswasduetohishealthylife.•HaveyoudecidedongoingtoAmericaforfurthereducation?II.Skimthepassageonpage26-27tofindthebold(黑体字)wordorphrasethatcancompletetheblanks.•1.areopposedto2.subscribedto•3.comparedto4.cameabout•5.states6.evenif•7.quantitiesof8.kepton•9.buildup10.resultinFastreading•Whatismainlydiscussedinthetext?A.CarbondioxideB.WatervapourC.GasesintheatmosphereD.Temperatureincrease•Accordingtothetext,whichofthefollowingstatementisnottrue？A.CarbondioxideisabyproductoftheburningoffossilfuelsB.AllthescientistsagreethattheburningofmoreandmorefossilfuelsleadstotheincreaseofcarbondioxideC.Ifwestopaddingcarbondioxideandothergreenhousegasesfromnowon,thetemperaturewillstopgoingupD.Itisstillnotclearwhattheeffectofglobalwarmingwillbe.•GeorgeHambleythinksthatmorecarbondioxide_________•A.mayleadtoacatastrophe•B.willdogoodratherthanharmtotheearth•C.willcausethespreadofdiseases•D.willencourageagreaterrangeofanimals,thusthreateninghumanbeings.•Byaskingthetwoquestionsattheendofthearticle,thewriterimpliesthat___•A.wecandonothingaboutglobalwarming•B.globalwarmingiscausedbyhumanbeings•C.weshouldnotbetooworriedaboutglobalwarming•D.humanbeingsstillhavemoreworriesabouttheeffectofglobalwarming•Whatwillhappenifwedonothingaboutglobalwarming?•A.Itwouldcausethesealeveltorise,storms,droughts,faminesandsoon•B.Thetemperaturewillbesurelylower•C.Itdoesn’tmatter•D.Ithasnothingtodowithme.Deep--reading1.Howhastheglobalwarmingcomeabout?•成果展示：①__________________________②___________________________③____________________________HumanactivityGreenhouseeffect---greenhousegasesHugequantitiesofextracarbondioxide---from1957to1997---fromaround315partspermilliontoaround370partspermillion.2.Whataretheeffectsofglobalwarming?•成果展示：①_____________________________②______________________________Thesealeveltorise.Severestorms,droughts,famines,thespreadofdiseases,anddestructionofspecies.Makeplantsgrowfaster.Cropswillproducemore.Encourageagreaterrangeofanimals.III.ThedifferentideasbetweenDr.JaniceFoster&GeorgeHambleyDr.JaniceFosterGeorgeHambleyThetrendwouldbea_____________A____ofseveralmetersinthesealevel,orseverstorms,______,droughts,famines,thespreadofdiseasesandthe_____________________Anywarmingwillbe_____withfewbadenvironmental____________.Morecarbondioxideisactuallya_____thing,…..allofwhichwillmakelifeforhumanbeingsbetter.catastropherisefloodDisappearanceofspeciesmildconsequencepositiveIV.dividethepassageinto4partsandmatchthemainideaofeachpart.(1)llustratehowglobalwarmingcomesabout(2)Listtwodifferentattitudesamongscientiststowardsglobalwarming(3)Introduceadebateovertheissueofglobalwarming(4)It’suptoreaderstothinkanddecidewhetherpeopleshoulddosthaboutglobalwarmingornotPart1(para.1)Part2(para.2-5)Part3(para.6)Part4(para.7)Windenergyisusedaspowertoproduceelectricity.Windmillswhereelectricityisproducedbyburningcoals.Thecoalpowerstationsinwhichoilisrefinedandmadepure.TheOilRefineriesafacilitydesignedtoconvertnuclearenergyintoelectricity.Anuclearpowerplantontheroofofahouseonabrightsunnydayareusedtocollectsolarenergy,makingyourhousewarmorheatingyourwater.Solarpanelsareusedtokeepbackwaterandraiseitslevelforirrigationorforproducingelectricity,etc.TheHydro-electricdamsHowdoesitwork?Theglasstrapstheheatfromthesun,makingtheairwarmsothatplantscangrowbetter.StepVSummaryTheearthisbecomingwarmingandallscientists_____________theviewthattheincreaseintheearth’stemperatureisduetotheburningoffossil_______.Some_________ofthisprocessarecalled____________gases,themostimportantoneofwhichis__________________.Weneedthesegases,buttheproblembeginswhenweaddhuge_______________extracarbondioxideintotheatmosphere.Itmeansthatmoreheatenergy________tobetrappedintheatmospherecausingtheglobaltemperatureto___________.AscientistcalledCharlesKeelingfoundthatthecarbondioxideintheatmospherewentupfromaroundsubscribetofuelsgreenhousebyproductscarbondioxidequantitiesoftendsgoup315partstoaround370parts__________millionin40years.Allscientistsacceptthedateandagreetheburningormoreandmorefossilfuelsthathas_____________thisincrease.However,theattitudeofscientiststowardsthisriseiscompletelydifferent.Ontheonehand,Dr.Fosterthinksthatthe__________whichincreasesthetemperatureby5degreeswouldbea_____________.Ontheotherhand,GeorgeHambley,whoare_________________thisview,believethatweshouldnotworryabouthighlevelsofcarbondioxideintheair.Theypredictthatanywarmingwillbe________withfewbadenvironmental_____________.Butnoonereallyknowstheeffectsofglobalwarming.perresultedintrendcatastropheopposedtomildconsequences有效训练•CCBBABCABB
