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
56
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
Thecouplehadnosoonergottothestation______thecoachleft.A、whenB、asC、un
[originaltext]ItwasagloriousdaywhenSteveDobsonrealizedthemountain
如果存款准备金率是0.3,通货存款比率是0.4,中央银行发行了1000亿的央票
下列各种膳食不是平衡膳食的为A.半流 B.清流 C.要素膳 D.普食 E
根据中国证券投资基金业协会的有关规定,下列属于会员权利的是()。A.按规定缴纳
按照国家现行规定,建设项目根据资金性质、环境影响、社会影响等因素的不同,其审批程
(2012年)根据我国《电信条例》,电信业务经营者在经营活动中的不正当竞争行为包
A公司与B公司签订协议,由B公司独立按照协议相关内容完成某项技术的研发,A公司按
收入是指企业在非日常活动中形成的、会导致所有者权益增加的、与所有者投入资本有关的
施工企业的主要负责人,对于本单位生产安全工作的主要职责包括()。A.编制专
最新回复
(
0
)