Unit 3 Environmental Protection Reading and Thinking 逐句讲解选择性必修第三册

XB3U3EnvironmentalProtection

Readingandthinking

ClimateChangeRequirestheWorld’sAttention

ClimateChangeRequirestheWorld’sAttentionPara.1Wehaveknownaboutclimatechangefordecades.现在完成时的标志

气候变化ThereislittledoubtthatEarthisgettingwarmerandwarmer(seethegraph图表).毫无疑问系表结构getwarmerAwarmingoceanandatmosphere(大气)alongwithmeltingiceandrisingsealevelsprovideevidenceofadramatic(引人注目的)changeintheglobalclimate.谓语动词是哪个？Healongwithhisfriendsisfondofmusic.Para.2-1In2013,alotofpeoplewereshockedbyanewsphotoofadeadpolarbearthatwasfoundonNorway’sArctic(北极的)islandofSvalbard.被...震惊that引导定语从句Accordingtothescientistswhofounditsdeadbody,allthatremained(剩余)ofthepolarbearwas“skinandbones”.句子主干部分who引导定从Anexpertwhohasstudiedpolarbearsformanyyearssaidthatfromthepositionofitsdeadbody,thebearappearedtohavestarvedanddied.sbsaidthatwho引导定语从句Para.2-2Expertsclaimed(断言)thatlowsea­icelevelscausedbyclimatechangemeant(意味着)thebearcouldnothuntseals(海豹)asbefore,soithadtotravelgreaterdistancesinordertofindfood.主干部分sbclaimedthatlevelsmeant(that)causedbysth过去分词做后置定语Thisalarming(令人警觉的)caseshowedhowtheincreaseintemperaturehadanimpactonEarth‘secology(生态).主干部分sthshowedhow......对.....有影响Para.3-1Thenwhatiscausingtheincreaseintheglobalaverage(平均的)surface(表面)temperature?全球平均表面温度Climatescientistsoftenmention(提到)akeyclimateprocess(过程)calledthe“greenhouseeffect(温室效应)”,whichhastwocommonmeanings:the“natural”greenhouseeffectandthe“man­made”greenhouseeffect.sbmentionsth过去分词做后置定语温室效应Para.3-2The“natural”greenhouseeffectrefersto(指的是)thefactthatheatfromthesunenterstheatmosphereandwarmsEarth’ssurfaceasshort­waveradiation(短波辐射).温室效应refertothefactthatTheheatisreleased(释放)backintospaceatlongerwavelengths.以....更长的波长atahighspeedatahighpriceGreenhousegasesintheatmosphere,suchasmethane(甲烷)andcarbondioxide(二氧化碳),trap(困住)someoftheheat,keepingEarth’sclimatewarmandhabitable(可居住的).主干部分是哪些单词？gasestrapsomeoftheheatkeeping动词现在分词表示结果Withoutthisprocess,Earthcouldnotsustain(维持)life.Para.3-3However,the“man­made”greenhouseeffecthasnowbecomeabigproblem.Whenpeopleproducehugeamountsofextragreenhousegasesbyburningfossilfuels(化石燃料),moreheatenergyistrapped(被困住)intheatmosphereandcausesEarth'ssurfacetemperaturetorisequickly.主从句的标点符号：从句，主句。从句部分：sbproducesthbydoingsth主句部分：energyistrapped.....andcausescausesbtodosthPara.4-1Thereisstrongandcomprehensive(全面的)evidencethattheriseintemperaturehasledtoanincreaseinextremeweatherandnaturaldisastersworldwide,notonlycausingseriousdamage,butalsocostinghumanlives.句型“证据表明”导致不但而且doing现在分词表示结果Para.4-2Climatescientistshavewarnedthatifwedonottakeappropriateactions,thiswarmingtrend(趋势)willprobablycontinueandtherewillbeahigherpricetopay.sbwarnthatIf从句，主句takeactionsInfact,newsreportsarefrequently(频繁地)broadcast(播放)aboutextremerainstormsandheatwavescausingdeathsandeconomiclosses.causing做什么成分？Para.5-1Continuedgreenhousegasemissionswillresultinfurther(进一步的)warmingandlong­lastingchangestotheglobalclimate.Thisrequires(要求)theattentionofpeopleallovertheworld.导致分词做定语Continuedgreenhousegasemissions，long­lastingchangesGovernmentsneedtoconsidermakingpolicies(政策),andtakingappropriateactionsandmeasurestoreducegreenhousegasemissions.需要做某事考虑做某事采取行动采取措施Para.5-2Weasindividuals(个人)canalsoreduceour“carbonfootprint”byrestricting(限制)theamountofcarbondioxideourlifestylesproduce.Hegoestoschoolbybus.theamountofItisourresponsibilitytoseize(抓住)everyopportunitytoeducateeveryoneaboutglobalwarming,alongwithitscausesandimpacts,becausethisisthemostseriousissue(议题)affectingallofusonthisplanet.Sowhatwillyoudotohelp?做某事的责任

做某事的机会全球变暖知识点复习climatechange气候变化thereislittledoubtthat毫无疑问getwarmer变暖risingsealevels不断上升的海平面adramaticchange剧烈变化给某人提供某物providesbwithsthpolarbear北极熊accordingto根据travelgreatdistance行走长距离为了做某事inordertodosthhaveimpacton对....有影响climatescientist气候科学家greenhouseeffect温室效应refertothefactthat指的是carbondioxide二氧化碳hugeamountsofgases大量的气体burnfossilfuels燃烧化石燃料surfacetemperature表面温度leadto导致extremeweather极端天气naturaldisaster自然灾害采取行动takeactiontodosth采取措施takemeasurestodosthextremerainstorms极端暴雨causeeconomicloss