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
2024-02-03
27
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.[23]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 rela-tive 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龟能而言,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/3418580.html
相关试题推荐
[originaltext]Alllanguagesareequalfromalinguisticpointofview.Iti
[originaltext]Alllanguagesareequalfromalinguisticpointofview.Iti
[originaltext]Iamnotonlyapainter,butastudentofart.Sometimes,[20]
[originaltext]Iamnotonlyapainter,butastudentofart.Sometimes,[20]
[originaltext]Culturecanandshouldplayaroleinbringingpeopletogethe
[originaltext]Culturecanandshouldplayaroleinbringingpeopletogethe
[originaltext]W:Goodafternoon,Mr.Burke.Didyouhaveagoodlunch?M:Yes,
[originaltext]M:Hello.Ineedtotalkwithsomeoneaboutmydriver’slicense.
[originaltext]W:DoyouknowwhatJulia’shobbiesare?M:Idon’tknow.Butshe
[originaltext]W:DoyouknowwhatJulia’shobbiesare?M:Idon’tknow.Butshe
随机试题
Thosewho______armedinterventionintheinternalaffairsofothercountriesa
FrenchDefenseMinisterMicheleAlliot-Mariesayshergovernmentis【B1】_____
阅读以下应用说明以及VisualBasic程序代码,将应填入(n)处的字句
30岁女性,初产妇,孕39周临产15小时,宫口开全1小时15分钟,估计胎儿350
下列选项中,属于证券承销业务种类的有()。 Ⅰ.自销Ⅱ.包销Ⅲ.经销Ⅳ.代销
A.大定风珠 B.十全大补汤 C.缓肝理脾汤 D.固真汤 E.逐寒荡惊汤
拥有亿万家财的王先生有三个孩子,如今王先生已经90多岁了,为了他的遗产,三个孩子
在委托买卖证券交易中,证券经纪商作为受托人,可以代替客户进行决策。()
Thefilm___________forhalfanhourwhe
流通巾的现金和各单位在银行的活期存款之和被称作()。A:狭义货币供应量M1
最新回复
(
0
)