人教版(新)选择性必修第三册-Unit-3environmental-protection-中英

选择性必修三

U3ENVIRONMENTALPROTECTIONEarthprovidesenoughtosatisfyeverymansneeds,butnoteveryman'sgreed.-MohandasKGandhi地球能满足每个人的需求，但不能满足每个人的贪婪。---莫罕达斯・甘地

CLIMATECHANGEREQUIRESTHEWORLD'SATTENTION气候变化需要全世界的关注Wehaveknownaboutclimatechangefordecades.ThereislittledoubtthatEarthisgettingwarmerandwarmer(seethegraph).Awarmingoceanandatmospherealongwithmeltingiceandrisingsealevelsprovideevidenceofadramaticchangeintheglobalclimate.我们几十年前就知道气候变化了。毫无疑问，地球正在变得越来越暖和(见图表)。海洋和大气的变暖以及冰川融化和海平面上升为全球气候的急剧变化提供了证据。In2013,alotofpeoplewereshockedbyanewsphotoofadeadpolarbearthatwasfoundonNorway'sArcticislandofSvalbard.Accordingtothescientistswhofounditsdeadbody,allthatremainedofthepolarbearwas"skinandbones".

Anexpertwhohasstudiedpolarbearsformanyyearssaidthatfromthepositionofitsdeadbody,thebearappearedtohavestarvedanddied.Expertsclaimedthatlowsea-icelevelscausedbyclimatechangemeantthebearcouldnothuntsealsasbefore,soithadtotravelgreaterdistancesinordertofindfood.ThisalarmingcaseshowedhowtheincreaseintemperaturehadanimpactonEarth'secology.2013年，一张在挪威北极地区的斯瓦尔巴群岛上发现了一只北极熊尸体的新闻照片让很多人震惊。根据发现这只北极熊尸体的科学家的说法，这只北极熊只剩下“皮包骨头”了。一位研究北极熊多年的专家说，从它尸体的位置看，这只熊似乎是饿死的。专家称，由于气候变化造成的海冰水位较低，这只熊无法像以前那样捕猎海豹，所以他为了找到食物不得不去更远的地方。这一令人震惊的案例表明气温升高对地球生态产生了怎样的影响。Thenwhatiscausingtheincreaseintheglobalaveragesurfacetemperature?Climatescientistsoftenmentionakeyclimateprocesscalledthe"greenhouseeffect",whichhastwocommonmeanings:the"natural"greenhouseeffectandthe"man-made"greenhouseeffect.The"natural"greenhouseeffectreferstothefactthatheatfromthesunenterstheatmosphereandwarmsEarth'ssurfaceasshort-waveradiation.Theheatisreleasedbackintospaceatlongerwavelengths.Greenhousegasesintheatmosphere,suchasmethaneandcarbondioxide,trapsomeoftheheat,keepingEarth'sclimatewarmandhabitable.Withoutthisprocess,Earthcouldnotsustainlife.However,the"man-made"greenhouseeffecthasnowbecomeabigproblem.Whenpeopleproducehugeamountsofextragreenhousegasesbyburningfossilfuels,moreheatenergyistrappedintheatmosphereandcausesEarth'ssurfacetemperaturetorisequickly.那么是什么正在导致全球表面平均温度的上升呢？气候科学家经常提到一个被称为“温室效应”的关键气候过程，它有两个普遍的含义：“自然”温室效应和“人为”温室效应。“自然”温室效应指的是来自太阳的热量进入大气层，并以短波辐射的形式使地球表面升温。热量以更长的波长释放回太空。大气中的温室气体，如甲烷和二氧化碳，会吸收一些热量，使地球气候保持温暖和适宜居住。没有这个过程，地球就无法维持生命。然而，“人为”温室效应现在已经成为一个大问题。当人们通过燃烧化石燃料产生大量额外的温室气体时，更多的热量被困在大气中，导致地球表面温度迅速上升。Thereisstrongandcomprehensiveevidencethattheriseintemperaturehasledtoanincreaseinextremeweatherandnaturaldisastersworldwide,notonlycausingseriousdamage,butalsocostinghumanlives.Climatescientistshavewarnedthatifwedonottakeappropriateactions,thiswarmingtrendwillprobablycontinueandtherewillbeahigherpricetopay.Infact,newsreportsarefrequentlybroadcastaboutextremerainstormsandheatwavescausingdeathsandeconomiclosses.有力且全面的证据表明，气温上升已导致世界范围内极端天气和自然灾害的增加，不仅造成严重的破坏，而且还致人丧命。气候科学家警告说，如果我们不采取适当的行动，这种变暖的趋势可能会继续下去，并将使我们付出更高的代价。事实上，新闻报道经常播送造成死亡和经济损失的极端暴雨和热浪。Continuedgreenhousegasemissionswillresultinfurtherwarmingandlong-lastingchangestotheglobalclimate.Thisrequirestheattentionofpeopleallovertheworld.Governmentsneedtoconsidermakingpoliciesandtakingappropriateactionsandmeasurestoreducegreenhousegasemissions.Weasindividualscanalsoreduceour"carbonfootprint"byrestrictingtheamountofcarbondioxideourlifestylesproduce.Itisourresponsibilitytoseizeeveryopportunitytoeducateeveryoneaboutglobalwarming,alongwithitscausesandimpacts,becausethisisthemostseriousissueaffectingallofusonthisplanet.Sowhatwillyoudotohelp?

持续的温室气体排放将导致全球气候进一步变暖和长期的变化。这需要全世界人民的关注。各国政府需要考虑制定政策并采取适当的行动和措施来减少温室气体排放。作为个人，我们也可以通过限制生活方式产生的二氧化碳的量来减少我们的“碳足迹”。我们有责任抓住每一个机会，让每个人了解全球变暖及其原因和影响，因为这是影响我们这个星球上所有人的最严重的问题，那么你会怎么做呢？REDUCINGWATERPOLLUTIONINTHELIRIVER减少漓江水污染

ThebeautifulLiRiveranditsamazingsurroundingsceneryisoneofthemostwell-knowntouristdestinationsinChina'sGuangxiZhuangAutonomousRegion.Itattractsmillionsofdomesticandforeignvisitorseachyear.However,itsreputationasatopdestinationhashadnegativeeffectsontheriver'swaterquality.Thisreportlooksattheproblemofwaterpollutionandsomeactionsthathavebeentakentodealwithit.美丽的漓江及其周边迷人的风景是中国广西壮族自治区最著名的旅游目的地之一，它每年吸引数以百万计的国内外游客。然而，它作为首选旅游目的地的声誉对河流的水质却产生了负面影响。这份报告就着眼于水污染问题以及为解决这一问题而采取的一些行动。Previously,waterqualityintheLiRiverhadsufferedgreatlyfromanincreasingvolumeoftourists,manyofwhomfrequentlythrewgarbageintotheriver.Manytourboatscontributedtotheproblemtoo.Kitchensonboardwereusinglotsofoil,whichwasoftenthrownintothewater.Thegrowthintourismalsomeantthelocalpopulationroserapidly,aswellasthenumberofcommercialandindustrialenterprises.Waterpollutionlevelsincreased.withmorehouseholdandcommercialwasteendingupintheriver.Inordertofeedmorepeople,morechemicalswereusedtoincreasecropproduction.Thesechemicalsledtoseverewaterqualityissues,causingadecreaseinthenumberoffishspecies.Localofficialswereconcernedthatthepollutionwasdamagingthenaturalenvironmentandfeltthaturgentstepsshouldbetakentorestoretheriver'soriginalbeauty.以往，漓江的水质因游客量的增长遭到了严重破坏，很多游客频繁地将垃圾扔进江中。许多游船也造成了这个问题。船上的厨房使用大量的油，这些油经常被倒入水中。旅游业的发展也意味着当地人口迅速增长，以及商业和工业企业的数量增加。水污染等级上升，更多的家庭和商业废弃物最终流入河中。为了养活更多的人，人们使用了更多的化学物质来增加农作物产量，这些化学物质导致了严重的水质问题，导致鱼类物种数量减少。当地官员担心污染正在破坏自然环境，并认为应采取紧急措施来恢复河流的原貌。Acomprehensiveinitiativewasstarted,withanumberofmeasuresthataddressedtheissues.Theconstructionofwastewatertreatmentfacilitiesimprovedthewaterqualityandwaterconservation.Thecollectionandtransportofhouseholdwastewasalsoimproved.Dozensofpollutingenterpriseswereclosedormoved.Thelocalgovernmentsetupstrictregulationsregardingfurtherindustrialdevelopment.Newruleswerealsointroducedregardingtourboatroutesandgarbagedisposalmethods.Furthermore,thelocalauthoritiesbegantousethemediatospreadenvironmentalawarenessandencouragegreateruseofcleanenergy.Atthesametime,theystartedtocarryoutinspectionsregularlyandfinetouristorganisationsforabuses.Withthesemea