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
2023-06-30
24
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、Improve the batteries of electric cars.
B、Increase the number of electric cars.
C、Design a new device for electric cars.
D、Look for new ways to improve safety.
答案
A
解析
短文结尾处说,汽车工程师们正试图开发更强大的电池以提升汽车的行驶里程,从而使电动汽车更受消费者欢迎,故A正确。
转载请注明原文地址:https://www.tihaiku.com/zcyy/2796794.html
相关试题推荐
[originaltext]Alllanguagesareequalfromalinguisticpointofview.Iti
[originaltext]M:[9]TheRepublicanPartyinAmericaisopposingstemcellresear
[originaltext]M:[9]TheRepublicanPartyinAmericaisopposingstemcellresear
[originaltext]M:I’msorryI’mlate,Rose.W:That’sallright,Vic.Myhousei
[originaltext]M:I’msorryI’mlate,Rose.W:That’sallright,Vic.Myhousei
[originaltext]W:Excuseme,wherecanIfindtheseriesHairyPotter?Ihavebe
[originaltext]W:Excuseme,wherecanIfindtheseriesHairyPotter?Ihavebe
[originaltext]W:Excuseme,wherecanIfindtheseriesHairyPotter?Ihavebe
[originaltext]W:Excuseme,wherecanIfindtheseriesHairyPotter?Ihavebe
[originaltext]W:Excuseme,wherecanIfindtheseriesHairyPotter?Ihavebe
随机试题
Thepolicefortunatelygainedthekeyclewaccordingtothefootmarkinthe___
Aroundtheworldmoreandmorepeoplearetakingpartindangeroussportsan
群体规范的功能主要有()。A.群体行为导向的功能 B.群体行为的评价功能
下列财产不得抵押的有()。A.土地所有权 B.耕地、宅基地、自留地、自留山等
对临终患者的饮食安排不妥的是A.少量多餐B.营养均衡C.流质为主D.高蛋白E.高
根据下表,则下列说法正确的是()。 I.来自东亚的游客数量小于来自东欧、
假设某总体服从正态分布N(12,4),现从中随机抽取一容量为5的样本X1,X2
民警甲、乙在出警过程中遭到围攻,甲被王某用手机击中头部,乙警服被李某撕破。下列选
A.有效期至2013年11月01日 B.有效期至2013年11月 C.有效期
火灾自动报警及联动控制系统施工程序中,线缆敷设的紧后程序是( )。A.绝缘测试
最新回复
(
0
)