2018届高考英语一轮复习 unit 4 living planet课下练 重庆大学版必修5

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1、Unit4LivingPlanet[课下练熟高考]阅读理解提速练——练速度(限时：20分钟)A(2017·江西重点中学盟校第一次联考)Basedonnewanalysis,wearerapidlyapproachingmajorclimatechangeandtheeffectsonsocietyandtheenvironmentcouldbequitesevere.Geographerspredictthatwithinthenexteightyyears,currentworldclimat

2、ezonescouldshiftandsomecouldcompletelydisappear.Polarregionswillgetcolderwhiletropicalregionswillgetevenhotter,forcinganimalstomigrate(迁徙)north.Climatechangeslikethesecouldleadtothespreadofdiseases.Tropicalstormsandhurricaneswillnotonlyincreasebutmay

3、alsobecomemoreintense.Ifthechangescometooquickly,animalandplantspeciesmaynotbeabletoadaptfastenoughandcoulddisappear.AccordingtoScienceDaily,anewstudypredictsthatbytheyear2100,manyoftoday'sfamiliarclimateswillbereplacedbyclimatesunknownintoday'sworld

4、.Itisurgentthatwereducetherisksofthesefarreachingconsequencesforthewholeworld.Theplanetitselfhasbeenshowingsignsofchange.In2004,aserioustsunamicreatedbyamajorearthquakekilledthousandsinSumatraandin2008,thousandsdiedinChinabecauseofanothersevereearthq

5、uake.Egyptwashitin2009withamajorearthquakeandHaitiwasdevastatedin2010byyetanothermassiveearthquake.Withinjustthelastfewmonths,newreportsfromaroundtheworldhavebeencominginandmostagreethatourclimatesituationismuchworsethanpreviouslythought.Atthispoint,

6、itdoesn'tmatterwhatiscausingit,butrather,whatcanbedoneaboutit.What'smore,ourworldisgettingmoreandmoreunstableeveryyear.Thereiswarandthreatofwareverywhere.Naturaldisastersarebecomingmorefrequentandserious.However,otherplanetsareexperiencingglobalwarmi

7、ngaswellasourownandsomescientistsbelievetheremaybesomeconnectionbetweenthis.Nooneknowsanythingforsureatthispointbecausethereissimplynotenoughdata.语篇解读：本文是一篇说明文。文章介绍了未来气候的变化对人和动物的生存环境的影响。1．WhatisthemajorfunctionofParagraph1?A．Toarousethereaders'concer

8、n.B．Tointroducethethemeofthewholepassage.C．Tosummarizethewholepassage.D．Tostatehowclimatechanges.解析：选B　推理判断题。根据第一段第一句可知，最新研究数据表明，即将到来的世界气候的巨大变化将严重影响社会和环境。而接下来的几段则是围绕气候变化对社会和环境具体的影响而展开的，由此可推知，第一段主要是介绍文章的主题。故选B项。2．Whatistheauthor'spurposeinusingtheexam