高考阅读分类专练及详解-地理类

《高考阅读分类专练及详解-地理类》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、地理类(1)MoveEarth—it’snosciencefictionLONDON-Scientistshavefoundanunusualwaytopreventourplanetfromoverheating:moveittoacoolerspot.Allyouhavetodoissendafewcomets（彗星）inthedirectionofEarth,anditsorbitwillbechanged.Ourworldwillthenbesentspinningintoasafer,colderpartofthesolarsyste

2、m.ThisideaforimprovingourclimatecomesfromagroupofUSNationalAeronauticsandSpaceAdministration（NASA）engineersandAmericanastronomers.Theysaytheirplancouldaddanothersixbillionyearstotheusefullifetimeofourplanet—effectivelydoublingitsworkinglife.TheplanputforwardbyDrLaughlin,andh

3、iscolleaguesDonKorycanskyandFredAdams,needscarefullydirectingacometorasteroidsothatitpassesclosebyourplanetandsendssomeofitsgravitationalenergytoEarth.“Earth’sorbitalspeedwouldincreaseasaresultandwewouldmovetoahigherorbitawayfromtheSun,”Laughlinsaid.Engineerswouldthendirectt

4、heircometsothatitpassedclosetoJupiterorSaturn.Thecometwouldpickupenergyfromoneofthesegiantplanets.LateritsorbitwouldbringitbacktoEarth,andtheprocesswouldberepeated.Intheshortterm,theplanprovidesanidealwaytoglobalwarming,althoughtheteamwasactuallyconcernedwithamuchgreaterdang

5、er.Thesuniscertaintoheatupinaboutabillionyearsandso“seriouslycompromise”ourbiosphere（生物圈）—bycookingus.That’swhythegroupdecidedtotrytosaveEarth.Theplanhasoneortwoworryingaspects,however.Forastart,spaceengineerswouldhavetobeverycarefulabouthowtheydirectedtheirasteroidorcometto

6、wardsEarth.Thesmallestmiscalculation（误算）inorbitcouldfireitstraightatEarth—withdeadlyconsequences.ThereisalsothequestionoftheMoon.AsthecurrentissueofScientificAmericanmagazinepointsout,ifEarthwaspushedoutofitscurrentpositionitis“mostlikelytheMoonwouldbestrippedawayfromEarth,”

7、itstates.Thiswouldgreatlychangeourplanet’sclimate.1.WhatmakesthescientistsplantomoveEarth?A.AfewcometsaremovingtothedirectionofEarth.B.Earth’sworkinglifeiscomingtoanendsoon.C.Earthwillbecometoohotformankindtokeepalive.D.ThemoonismovingfartherandfartherawayfromEarth.2.Ifthepl

8、anissuccessful,Earthwillhaveaworkinglifeof______years.A.12billionB.6billion