首页
登录
职称英语
[originaltext] Are electric cars the way of the future? Automobile manufactu
[originaltext] Are electric cars the way of the future? Automobile manufactu
游客
2023-06-27
60
管理
问题
Are electric cars the way of the future? Automobile manufactures are under pressure to develop cars that do not pollute. One powerful motive is a California law requiring that by the year 2020 ten percent of new car sells in the state be so called zero-emission vehicles. These cars must put no pollutants whatsoever into the atmosphere.
California is a huge market for the automobile companies, so they are working hard to meet these standards. So far the electric car seems to be the best alternative. So the big advantage of electric cars is that they don’t pollute. However they will be in competition with gas-powered cars and that’s where the weaknesses come out. [24]The big problem is that the batteries that power electric cars weigh a lot relative to the amount of power they deliver. For instance, in one prototype electric car, the batteries weighed 400 kilograms. And they provide enough energy to go 250 kilometers before recharging, which takes eight hours. Compare that to a moderately fuel-efficient conventional car, it can go 600 to 700 kilometers on a tank of gas and refilling takes just minutes. If there are other drains on an electric car’s batteries besides the motor, headlights, air-conditioning or a heater, its already limited range will be significantly reduced. [25] So automobile engineers are trying to make more powerful batteries that would increase the cars’ range and make them more attractive to buyers.
23 Why does the electric car seem to be the best alternative so far?
24 What is the big problem with an electric car?
25 What are the automobile engineers trying to do?
选项
A、Its battery is not powerful enough.
B、Its battery is of enormous size.
C、It costs too much money.
D、It breaks down easily.
答案
A
解析
短文提到,电动汽车一个大问题在于,相对于其所能供应的电能而言,电池的重量偏高。言外之意是,电池的供电能力不够强大,故A正确。
转载请注明原文地址:https://tihaiku.com/zcyy/2787015.html
相关试题推荐
[originaltext]CrimeisaseriousprobleminBritain.Onesortofcrimewhic
[originaltext]Howmuchlivingspacedoesapersonneed?Whathappenswhenh
[originaltext]Howmuchlivingspacedoesapersonneed?Whathappenswhenh
[originaltext]BarbaraSandersisawifeandthemotheroftwochildren,age
[originaltext]Thewaytocomplainistoactbusiness-likeandimportant.If
[originaltext]Thewaytocomplainistoactbusiness-likeandimportant.If
[originaltext]Asthenewsalesdirectorforanationalcomputerfirm,Alex
[originaltext]Asthenewsalesdirectorforanationalcomputerfirm,Alex
[originaltext]W:Whatkindoftrainingdoesoneneedtogointothistypeofjo
[originaltext]W:Whatkindoftrainingdoesoneneedtogointothistypeofjo
随机试题
Othernon-dominantmaleswerehyperactive;theyweremuchmoreactivethanisno
Whilethenewsseemstohighlightthemountingexternalandinternalpressu
[originaltext]M:Didyouliketheplay?W:Notparticularly.Iwasratherdisap
Thepainofchangeisallaroundus.Corporationsarerushingtocutcostsandu
振动式压路机按传动形式不同,可分为()。A.机械式 B.拖式 C.机械液力
分部(子分部)工程应按( )确定。A.专业性质 B.施工工艺 C.建筑部位
法国作家儒勒凡尔纳的科幻小说,把现实与幻想巧妙结合起来,在科学知识基础上大胆的设
《中华人民共和国商业银行法》第六十四条规定:“商业银行已经或者可能发生信用危机,
《公民道德建设实施纲要》提出的从业人员应该遵循的职业道德要求包括()。 (A)
企业获得的捐赠利得应该记入营业外收入中,影响利润总额。()
最新回复
(
0
)