PartBDirections:Readthetextsfromanarticleinwhi
问题详情
PartB
Directions:
Readthetextsfromanarticleinwhichfivepeopletalkedaboutenergyandmakinguseofit.Forquestions61to65,
matchthenameofeachspeakertooneofthestatements(AtoG)givenbelow.MarkyouranswersonyourANSWERSHEET1.
Jackson:
Viewedfromascientist"sstandpoint,alloftheenergycontainedinfueleithernoworinthefuturebecomesheat.
Someoftheheatisuseddirectlyorproducesusefulwork.Therestislostorrejected.Thatistosay,itisradiatedintothe
atmospherefromtheengines,motors,furnaces,powerlines,televisionsets,boilersandalltheotherenergy-consumingmachinerythatmakesourwheelsgoaround.
Browning:
Itisnecessarytoimprovetheefficiencywith.whichweuseenergyinordertodomorework.Butimprovementcannot
comeovernight,andtherearelimitsbeyondwhichnotevensciencecanhelp.AccordingtotheCenterfor
StrategicandInternationalstudies,aboutthreequartersoftheenergyweusetomovethings,includingourselves,
accomplishesnousefulwork.
Jeffrey:
Intermsofefficiency,buses,trains,andotherformsofpublictransportationmaybeusingen-ergymoreefficientlythanprivateautomobiles.Unlessprivateautomobilescanoperateatnearcapacity,theirover
allefficiencyispoor.Forexample,anurbanbuscarrying36passengersmayachieveanefficiencyofaround120
passenger-milespergallonofgasoline.Butbusesarenotal-waysfullyloaded,andsometimestheycarrynopassengersatall.
Vandenberg:
Itistruethatbusescansometimesrunwithoutpassengers.Citytrainsseemtobeveryeffi-cient,buttheysufferthesameshortcomingsasbusesandcostmore.Exceptforrushhours,com-mutertrainsseldomrunatfullcapacity.Thiswastesevenmoreenergyandismorethanthemanagementcanafford.
Asaresult,commutertrainsaretrulypracticalonlyinplaceswheretherearealotofpeople.
Nathan:
Forsomepeople,masstransportationmayservetheirneeds.Forothers,acombinationofmasstransportation
andprivatetransportationmaybepreferable.Betterdesignandwiseuseofbothmasstransportationsystems
andprivatevehicleswillplayanimportantpartinhelpingusmakefull-eruseofenergyfortransportation.
Nowmatcheachofthepersons(61to65)totheappropriatestatement.
Note:therearetwoextrastatements.
Statements
[A]Citytrainsandbuseshavedifferentfaultstoovercome.
[B]Theefficiencyofthecitytraindependsonthesizeofpopulation.
[C]Publictransportationisusuallymoreenergy-efficient.
[D]Privatecarsusuallyrunatfullcapacity.
[E]Nofuelenergyisfullyused.
[F]Acombinedmeansoftransportcanhelpincreaseenergyefficiency.
[G]Problemsofenergylosscanneverbecompletelysolved.
61.Jackson请帮忙给出正确答案和分析,谢谢!
参考答案
正确答案:E
参考译文下面五个人在谈论能源及其利用.注意每个人观点有何不同.杰克逊:以科学家的立场来看,不管是现在还是将来,燃料里所含的全部能量都会转变为热量.有些热量会被直接使用或用于有用的生产.其余的不是丢失了就是被遗弃了,也就是说,这些热量从引擎、汽车、熔炉、电线、电视机、锅炉、以及所有其他消耗能量的机器上散发到大气中,正是这些机器使我们生活的齿轮得以运转.布洛林:为了做更多的工作而提高能源使用的效率是很必要的.但是这种提高不是一夜之间能实现的,而且其中有些限制就连科学也无能为力.根据国际研究与战略中心发布的报告,我们用来使用东西,包括我们自己,运转的能量中有四分之三做的是无用功.杰弗里:说到效率,公交车、火车和其他公共交通设施对能源的利用可能比私家车更高效.除非私家车的容量能被最大限度的使用,否则它们的总效率很低.比如说,一辆载有36名乘客的市区公交车,它的效率能达到120乘客.英里/加仑汽油.但是公交车不总是满载,有时车上一名乘客也没有.文登博格:公车上有时确实一个人也没有.城铁看上去效率很高,但是它们也有和公车相同的缺点,而且成本更高.除了交通高峰期,载上下班乘客的列车很少满载运行.这浪费了更多的能源,而且造成出资方负担不起的结果.载上下班乘客的列车只有在人很多的地方才真正实用.南森:对有些人来说,公共交通设施满足了他们的需求,而其他人比较倾向于把公共交通设施和私人交通工具结合起来.更好的设计和更明智的使用两者对我们在交通设施上充分利用能源来说至关重要.61.E【精析】推理题.在第一段第一句话作者说燃料里的能源转化为热量.第二、三句紧接着说一部分能量被使用,其余的丢失或遗弃了,由此可推出燃料里的能量没有被完全利用.故选E.