首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Jackson: Viewed from a scientist’s standpoint, all of the energy contained in fuel either now or in the future becomes heat. Som
Jackson: Viewed from a scientist’s standpoint, all of the energy contained in fuel either now or in the future becomes heat. Som
admin
2008-08-02
65
问题
Jackson: Viewed from a scientist’s standpoint, all of the energy contained in fuel either now or in the future becomes heat. Some of the heat is used directly or produces useful work. The rest is lost or rejected. That is to say, it is radiated into the atmosphere from the engines, motors, furnaces, power lines, television sets, boilers and all the other energy-consuming machinery that makes our wheels go around.
Browning: It is necessary to improve the efficiency with which we use energy in order to do more work. But improvement cannot come overnight, and there are limits beyond which not even science can help. According to the Center for Strategic and International studies, about three quarters of the energy we use to move things, including ourselves, accomplishes no useful work.
Jeffrey: In terms of efficiency, buses, trains, and other forms of public transportation may be using energy more efficiently than private automobiles. Unless private automobiles can operate at near capacity, their overall efficiency is poor. For example, an urban bus carrying 36 passengers may achieve an efficiency of around 120 passenger-miles per gallon of gasoline. But buses are not always fully loaded, and sometimes they carry no passengers at all.
Vandenberg: It is true that buses can sometimes run without passengers. City trains seem to be very efficient, but they suffer the same shortcomings as buses and cost more. Except for rush hours, commuter trains seldom run at full capacity. This wastes even more energy and is more than the management can afford. As a result, commuter trains are truly practical only in places where there are a lot of people.
Nathan: For some people, mass transportation may serve their needs. For others, a combination of mass transportation and private transportation may be preferable. Better design and wise use of both mass transportation systems and private vehicles will play an important part in helping us make fuller use of energy for transportation.
Note: there are two extra statements.Statements
A. City trains and buses have different faults to overcome.
B. The efficiency of the city train depends on the size of population.
C. Public transportation is usually more energy-efficient.
D. Private cars usually run at full capacity.
E. No fuel energy is fully used.
F. A combined means of transport can help increase energy efficiency.
G. Problems of energy loss can never be completely solved.
Nathan
选项
答案
F
解析
Nathan明确提出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,主张把公共交通设施和私人交通工具结合起来。故选F。
转载请注明原文地址:https://kaotiyun.com/show/OVCd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
WhyisAmericanmusicsopopularinallcountries?
Duringtheadolescence,thedevelopmentofpoliticalideologybecomesapparentintheindividual:ideologyhereisdefinedasth
What’stherelationshipbetweenTomandSteve?
Eachcompanyhasmany"public"whowouldbeablenotonlytorecognizeitsname【21】______tocorrectlyidentifyitsindustry
Standardusageincludesthosewordsandexpressionsunderstood,used,andacceptedbyamajorityofthespeakersofalanguagei
TheUnitedStateshashistoricallyhadhigherratesofmarriagethanthoseofotherindustrializedcountries.Thecurrentannual
TheUnitedStateshashistoricallyhadhigherratesofmarriagethanthoseofotherindustrializedcountries.Thecurrentannual
Althoughtherehadbeenvarioussmallcamerasdeveloped,itwasnotuntilGeorgeEastmanintroducedtheKodakin1888thatthem
Educationisprimarilytheresponsibilityofthestates.Stateconstitutionssetupcertainstandardsandrulesfortheestablis
随机试题
HaveyoueverhadtodecidewhethertogoshoppingorstayhomeandwatchTVonaweekend?Nowyou【C1】_______dobothatthesa
肢体软组织内非金属异物有鉴别意义的超声表现是
A.新生儿白内障B.死胎、先天性甲状腺功能低下或胎儿甲状腺肿大,甚至压迫呼吸道引起窒息C.新生儿循环障碍和灰婴综合征D.视神经损害、智力障碍和惊厥E.死胎、胎儿电解质紊乱、血小板减少症妊娠期妇女应用丙硫氧嘧啶可导致()
D公司总部在北京,目前生产的产品主要在北方地区销售,虽然市场稳定,但销售规模多年徘徊不前。为了扩大生产经营,寻求新的市场增长点,D公司准备重点开拓长三角市场,并在上海浦东新区设立分支机构,负责公司产品在长三角地区的销售工作,相关部门提出了三个分支机构设置方
下列属于公文表态词的是()。
下列选项中,属于南京临时政府社会改革的内容的有()
()气质包含“两格”,即人格与性格,强调人社会层面和价值观的成分较多。
AccordingtoBT’sfuturologist,IanPearson,theseareamongthedevelopmentsscheduledforthefirstfewdecadesofthenewmil
Accordingtothepassage,ifadriverfallsasleepinoneofthetestcars,______.Thesecondparagraphtalksmostclearlyabo
Onedayapoliceofficermanagedtogetsomefreshmushrooms.Hewassopleased【C1】______whathehadboughtthathe【C2】______
最新回复
(
0
)