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
47
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://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
PASSAGEONEWhat’sthepercentageoftheblackmakinguptheAmerica’spopulatio
Hisevilintentionswere______.andyetwehadnosuitablemeasuretostophim.A
[originaltext]Let’ssayyoustarttobrainstormalistofalltheemotions
Societieschangeovertimewhiletheirreputations【C1】______behind.Manythi
Acommonassumptionabouttheprivatesectorofeducationisthatitcaters
时间研究是在一定的标准测定条件下,确定人们完成作业活动所需时间总量的一套()。
现金流量表中“支付给职工以及为职工支付的现金”项目应反映的内容有( )。A.企业
以美国学制为蓝本,一直沿用到全国解放初期的现代学制是()。A.壬寅学制
商用房贷款信用风险的主要内容不包括()。A.借款人还款能力发生变化
选择性的β受体激动剂是A.乙胺嘧啶 B.苄青霉素 C.特布他林 D.红霉素
最新回复
(
0
)