2014年职称英语教材理工类b阅读理解原文

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1、第十七篇　ASunshadeforthePlanet　　Evenwiththebestwill1intheworld,reducingourcarbonemissionsisnotgoingpreventglobalwarming.Ithasbecomeclearthatevenifwetakethemoststrongmeasurestocontrolemissions,theuncertaintiesinourclimatemodelsstillleaveopenthepossibilityofextre

2、mewarmingandrisesinsealevel.Atthesametime,resistancebygovernmentsandspecialinterestgroupsmakesitquitepossiblethattheactionssuggestedbyclimatescientistsmightnotbeimplementedsoonenough.　　Fortunately,iftheworstcomestotheworse2,scientistsstillhaveafewtricksupth

3、eirsleeves3.Forthemostparttheyhavestronglyresisteddiscussingtheseoptionsforfearofinvitingasenseofcomplacencythatmightthwarteffortstotackletherootoftheproblem.Untilnow,thatis.Agrowingnumberofresearchersaretakingafreshlookatlarge-scale“geoengineering”projects

4、thatmightbeusedtocounteractglobalwarming.“Iusetheanalogyofmethadone4,”saysStephenSchneider,aclimateresearcheratStanfordUniversityinCaliforniawhowasamongthefirsttodrawattentiontoglobalwarming.“Ifyouhaveaheroinaddict,thecorrecttreatmentishospitalization,andal

5、ongrehab.Butiftheyabsolutelyrefuse,methadoneisbetterthanheroin.　　Basicallytheideaistoapply“sunscreen”tothewholeplanet.OneastronomerhascomeupwitharadicalplantocoolEarth:launchtrillionsoffeather-lightdiscsintospace,wheretheywouldformavastcloudthatwouldblockth

6、esun’srays.It’scontroversial,butrecentstudiessuggesttherearewaystodeflectjustenoughofthesunlightreachingtheEarth’ssurfacetocounteractthewarmingproducedbythegreenhouseeffect.Globalclimatemodelsshowthatblockingjust1.8percentoftheincidentenergyinthesun’srayswo

7、uldcanceloutthewarmingeffectsproducedbyadoublingofgreenhousegasesintheatmosphere.Thatcouldbecrucial,becauseeventhemostsevereemissions-controlmeasuresbeingproposedwouldleaveuswithadoublingofcarbondioxidebytheendofthiscentury,andthatwouldlastforatleastacentur

8、ymore.　　词汇：　　emission发射，发射物 heroin海洛因　　complacency满足 hospitalization住院治疗　　thwart反对，阻挠  rehab 接受康复治疗　　geoengineering地质工程 astronomer天文学家　　trillion（英、德）百万兆 counteract抵消；抵制　　controversial有争议的 methadone美沙酮，