考研英语阅读理解-(六).pdf

考研英语阅读理解-六（）

总（分：100.00,做题时间：90分钟）

一、{{B}}SectionIReadingComprehension{{/B}}总（题数：4,分数：100.00）

Telecommuting,Internetshoppingandonlinemeetingsmasaveenerg

ascomparedwithin-personalternatives,butasthedigitalagemoves

on,itsgreenreputationisturningalotbrowner.Lastear,E-

mailingconsumedasmuchas1.5percentofthenationselectricit­

halfofwhichcomesfromcoal.

In2005thecomputersoftheworldateup123billionkilo-watthours

ofenerg.Asaresult,thepowerbilltorunacomputeroverits

lifetimewillsurpassthecostofbuingthemachineinthefirst

place-givingInternetandcomputercompaniesabusinessreasontocut

energcosts,aswellasanenvironmentalone.Oneofthebiggest

energsinkscomesnotfromthecomputersthemselvesbutfromthe

air-conditioningneededtokeepthemfromoverheating.Forever

kilowatt-hourofenergusedforcomputinginadatacenter,another

kilowatt-hourisrequiredtocoolthefurnacelikeracksofservers.

ForInternetgiantGoogle,thisrealithasdriveneffortssuchas

theinstallationofasolararrathatcanprovide30percentofthe

peakpowerneedsofitsheadquartersaswellasincreasingpurchases

ofrenewableenerg.ButtodeliverWebpageswithinseconds,the

firmmustmaintainhundredsofthousandsofcomputerserversin

cavernousbuildings.〃Weareactivelworkingtomaximizethe

efficiencofourdatacenters,whichaccountformostoftheenerg

，

Googleconsumesworldwide.remarksGooglesgreenenergczarBill

Weihl.Googlewillfunnelsomeofitsprofitsintoaneweffort,

dubbedRECf（orrenewableenergcheaperthancoal,asGoogle

translatesit）tomakesourcessuchassolar-thermal,highaltitude

windandgeothermalcheaperthancoalwithinears,notd