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ID:6117507
大小:81.00 KB
页数:13页
时间:2018-01-03
《高级英语1 lesson 3课后练习答案及补充练习》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Lesson3ShipsintheDesert课后练习答案及补充练习习题全解I. 1)ThewriterwenttotheAralSeatosearchfortheunderlyingcausesoftheenvironmentalcrisis.Whathesawtherewashotdrysand. 2)Itwastheannuallayersoficeinacoresampledugfromtheglacier. 3)Scientistsweremonitoringtheairseveraltimesadayto
2、chartthecourseoftheclimatechange. 4)Becausethepolarcapplaysacrucialroleintheworld'sweathersystem,thethinningofthepolarcapmightcausefloodinmanyplacesoftheworld. 5)TherearemoredifferentspeciesofbirdsineachsquaremileoftheAmazonthanexistinallofNorthAmerica.Thedestr
3、uctionoftheAmazonrainforestwillmeansilencingthousandsofsongswehaveneverevenheard. 6)Thewritercallsnoctilucentclouds"ghostsinthesky".Asaresultofpollution,thecloudsoccasionallyappearwhentheearthisfirstcloakedintheeveningdarkness.Andtheyappearmoreoftenbecauseofahu
4、gebuildupofmethanegasintheatmosphere. 7)Becausewearenotyetawakenedtotakeeffectivemeasurestodealwiththeclimatechange. 8)Carbondioxide'sabilitytotrapheatintheatmospherecausesglobalwarming.Becauseglobalwarmingseriouslythreatenstheglobalclimateequilibriumthatdeterm
5、inesthepat-ternofwinds,rainfall,surfacetemperatures,oceancur-rents,andsealevel.Theseinturndeterminethedistributionofvegetativeandanimallifeonlandandseaandhaveagreateffectonthelocationandpatternofhumansocieties. 9)Thetwokeyfactorsarehumanpopulationandthescientif
6、icandtechnologicaldevelopment.Thedramaticchangesthathaveoccurredinthesetwofactorsareasuddenandstartlingsurgeinhumanpopulationandasuddenaccelerationofthescientificandtechnologicalrevolution. 10)Thewriter'ssolutiontoourecologicalproblemsistoreinventandfinallyheal
7、therelationshipbetweenhumanbeingsandtheearthbycarryingoutacarefulreassessmentofallthe{actorsthatledtotherelativelyrecentdramaticchangeintherelationship.Ⅱ. 1)Itwasnotatallpossibletocatchalargeamountoffish. 2)Followingthelayersoficeinthecoresample,hisfingercameto
8、theplacewherethelayer13oficewasformed2050yearsago. 3)keepsitsenginesrunningforfearthatifhestopsthem,themetalpartswouldbefrozensolidandtheengineswouldnotbeabletostartagain 4)
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