首页
登录
职称英语
Electric cars are dirty. In fact, not only are they dirty, they might even be
Electric cars are dirty. In fact, not only are they dirty, they might even be
游客
2023-09-18
10
管理
问题
Electric cars are dirty. In fact, not only are they dirty, they might even be dirtier than the gasoline-powered cars.
We get electricity mainly by burning something. Those "zero-emissions" cars are likely coal-burning cars. Because the coal is burned somewhere else, it looks clean. It is not true. It’s as if the California Greens are covering their eyes—"If I can’t see it, it’s not happening. " Gasoline is an incredibly efficient way to power a vehicle: a gallon of gas has a lot of energy in it. But when you take that gas(or another fuel) and first use it to make electricity, you waste a nice part of that energy, mostly in the form of wasted heat—at the generator, through the transmission lines, etc.
A gallon of gas may drive your car 25 miles. But the electricity you get from that gallon of gas won’t get you nearly as far—so electric cars burn more fuel than gasoline-powered ones. If our electricity came mostly from wind or geothermal, or solar, then an electric car truly would be clean. But for political, technical, and economic reasons, we don’t use much of those energy sources.
In addition, electric cars’ batteries which are poisonous for a long time will eventually end up in a landfill. And finally, when cars are the polluters, the pollution is spread across all the roads. When it’s a power plant, though, all the junk is in one place. Nature is very good at cleaning up when things are not too concentrated, but it takes a lot longer when all the garbage is in one spot. [br] In the author’s opinion, compared with cars using gas, electric cars are more______.
选项
A、environmentally-friendly
B、harmful
C、expensive
D、efficient
答案
B
解析
此题需要结合全文来推断,特别是从第三段第二句的electric cars burn more fuel than gasoline-powered ones不难发现选项B与文章的大意相符,故选B。
转载请注明原文地址:https://tihaiku.com/zcyy/3025525.html
相关试题推荐
A—EngineFuelSystemG—contactpointB—LightsandWiresH—theelectricsystemC—
A—EngineFuelSystemG—contactpointB—LightsandWiresH—theelectricsystemC—
A—EngineFuelSystemG—contactpointB—LightsandWiresH—theelectricsystemC—
A—groceryJ—furnitureshopB—roastmeatshopK—electricalapplianceshopC—food
A—groceryJ—furnitureshopB—roastmeatshopK—electricalapplianceshopC—food
Iftherentisasmuchas$750amonth,water,gasandelectricityshould(includ
A—EngineFuelSystemH—theelectricsystemB—LightsandWiresI—powertrainC—St
A—EngineFuelSystemH—theelectricsystemB—LightsandWiresI—powertrainC—St
A—EngineFuelSystemH—theelectricsystemB—LightsandWiresI—powertrainC—St
(electric)______intheareahasbeencutoffforthreehoursbecauseofthunders
随机试题
浙江钱塘江河口的涌潮,自古蔚为天下奇观。它是大自然赋予的神奇景象。由于天体引力和地球离心作用,每逢农历初一至初五,十五至三十,天体引潮力特别强,易形成大
通读下面的短文,掌握其大意。然后每小题的四个选项中选出可填入相应空白处的最佳选项
A.高阶 B.同阶不等价 C.等价 D.低阶
基因表达的时间特异性指的是多细胞生物个体在某一特定生长发育阶段,同一基因在不同的
2002年全国固定资产投资、房地产投资月度统计图 已知2002年7月份
沿着卢瓦尔河,法国的历史被书写进河谷里______的城堡群中。想要探寻几百年间法
投资债券所获现金流量再投资的利息收入,受市场收益率变化的影响。()
(2020年真题)根据合伙企业法律制度的规定,下列关于有限合伙企业合伙事务执行人
根据《环境影响评价技术导则地表水环境》(HJ2.3-2018),地表水环境影响因
某网络计划中,工作A的紧后工作是B和C,工作B的最迟开始时间是14,最早开始时间
最新回复
(
0
)