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
70
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://www.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
Duringtheadolescence,thedevelopmentofpoliticalideologybecomesapparentintheindividual:ideologyhereisdefinedasth
ProperstreetbehaviorintheUnitedStatesrequiresanicebalanceofattentionandinattention.Youaresupposedtolookata
Inwhatkindofcountriesareearthquakeslikelytooccur?
Howdoestherisingpopulationnegativelyinfluencesomecountries?
Agrantedpatentistheresultofabargainstruckbetweenaninventorandthestate,bywhichtheinventorgetsalimitedperio
Standardusageincludesthosewordsandexpressionsunderstood,used,andacceptedbyamajorityofthespeakersofalanguagei
Althoughtherehadbeenvarioussmallcamerasdeveloped,itwasnotuntilGeorgeEastmanintroducedtheKodakin1888thatthem
Educationisprimarilytheresponsibilityofthestates.Stateconstitutionssetupcertainstandardsandrulesfortheestablis
gettingmarried
gettingmarried
随机试题
防腐保温管的补口处涂刷底漆,只需给管表面涂漆。
东亚飞蝗的大发生在种群数量变动中属于
A.1~2天B.2~3天C.7~10天D.2~3周E.4~8周败血症患者需在体温正常几天后停止使用抗生素
生活垃圾填埋场应设在()。
政府对建设工程施工质量监督的职能主要有()。
惠达公司采用科目汇总表账务处理程序,并采取全月一次汇总的方法编制科目汇总表。2010年7月,惠达公司根据所有记账凭证编制的科目汇总表如下(金额单位:元):要求:根据上述材料,回答以下问题:下列表述中正确的有()。
下列关于让渡企业资产使用权的说法中,不正确的是()。
在Word97编辑状态下,利用“格式刷”按钮
Itislogicalthatadetailedlearningofplantsandtheirpropertiesmustbeextremelyancient.Ourdirectcontactwithplants
Areyoualwayssureyouknowwhatpeoplemeanwhentheytrytodescribetheirfeelingstoyou?Weusebothwordsandgesturesto
最新回复
(
0
)