阅读理解第一节(建议用时:30分钟)A体裁科普文题材地球变暖词数381MoveEarth—It’sNotScienceFictionLONDON—Scientistshavefoundanunusualwaytopreventourplanetfromoverheating:moveittoacoolerspot
Allyouhavetodoissendafewcomets(彗星)inthedirectionofEarth,anditsorbitwillbechanged
Ourworldwillthenbesentspinningintoasafer,colderpartofthesolarsystem
ThisideaforimprovingourclimatecomesfromagroupofUSNationalAeronauticsandSpaceAdministration(NASA)engineersandAmericanastronomers
Theysaytheirplancouldaddanothersixbillionyearstotheusefullifetimeofourplanet—effectivelydoublingitsworkinglife
TheplanputforwardbyDr
Laughlin,andhiscolleaguesDonKorycanskyandFredAdams,needscarefullydirectingacometorasteroidsothatitpassesclosebyourplanetandsendssomeofitsgravitationalenergytoEarth
“Earth’sorbitalspeedwouldincreaseasaresultandwewouldmovetoahigherorb