首页
登录
职称英语
The speaker thinks that [br] [originaltext] Ok, good afternoon, ladies and g
The speaker thinks that [br] [originaltext] Ok, good afternoon, ladies and g
游客
2023-12-11
5
管理
问题
The speaker thinks that [br]
Ok, good afternoon, ladies and gentlemen. In previous weeks we talked about different types of pollution and this week I want to focus on air pollution, with air pollution caused by the car. It’s well known that cars are the main cause of air pollution in cities, which comes up to 60% in some cities and in others even as high as 90% of all air pollution caused by the car. Cars contribute a great deal to the air pollution in our cities, and this will get worse as the number of cars increases in the cities.
Firstly, I’d like to talk about how cars cause air pollution. How does a car cause air pollution? Well, you are all familiar with the internal combustion engine. There’s a mixture of petrol which explodes and this explosion helps propel a car forwarD.Unfortunately, in this process there are some poisonous chemicals which remain, and these poisonous chemicals mainly come out of the back of the car through the exhaust.
Now, it’s not just what comes out of the car exhaust that is dangerous, the brakes also cause pollution. The brakes on cars give off asbestos, and as you know asbestos is... is a highly dangerous substance and can kill us.
And thirdly, the tires themselves give off small rubber particles which are not very good for health. We need to find solutions to this problem. I’m going to talk about 4 possible solutions.
Firstly, we should try and discourage the use of cars. We could do this by putting higher taxes on petrol or we could make cars more expensive. We could put the price of cars up.
Secondly, we might encourage alternative methods of transport. For example, recently in Shanghai, you’ve built a subway, which takes some of the pressure off the roads. Some people would use the subway rather than using cars. In addition, we could improve public transport, make it more comfortable, safer, and more regular so that the people will use public transport rather than cars. Next, we could also use cleaner fuels rather than petrol. For example, we might use natural gas in the future or we might experiment with battery group in cars.
And lastly, we could try mechanical means for reducing the amount of chemicals that are
emitted, which come out of cars, which come out of the exhaust pipe. We could fix things called catalytic converters to exhaust pipes. These are something... these are a device which are fixed over to the exhaust, which controls the carbon monoxide, which reduces the amount of dangerous chemicals that cars give off.
Now it’s unlikely that any one of these solutions will work on its own. I’m pretty sure that it would take a combination of all four of these solutions to solve the problem.
选项
A、focus on one method only.
B、explore some other alternatives.
C、improve one of the four methods.
D、integrate all of the four methods.
答案
D
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3265191.html
相关试题推荐
TheDemocrats’TradeTroublesLastweekHousespeakerNancyPelosiandC
TheDemocrats’TradeTroublesLastweekHousespeakerNancyPelosiandC
TheDemocrats’TradeTroublesLastweekHousespeakerNancyPelosiandC
TheDemocrats’TradeTroublesLastweekHousespeakerNancyPelo
TheDemocrats’TradeTroublesLastweekHousespeakerNancyPelo
TheDemocrats’TradeTroublesLastweekHousespeakerNancyPelo
GeneralBanKi-moonisurgingtheBurmesegovernmentto[originaltext][7]Th
Whatisthemainideaofthenewsitem?[originaltext][6]IsraeliJusticeMi
WhichofthefollowingstatementsisINCORRECTaboutMissChan?[originaltext]M:
Iwastakenbyafriendoneafternoontoatheatre.Whenthecurtainwasrai
随机试题
DesigntheProspectivePatientRoomA)There’sverylittlet
[originaltext]W:Ihearyou’refinallyretiringattheendofthisyear,Brant.
IEEE802.3z中的1000BASE-SX标准规定的传输介质是()。
A.金黄色葡萄球菌 B.溶血性链球菌 C.大肠埃希菌 D.变形杆菌 E.
下列关于全生涯模拟仿真的说法错误的是()。A.列出未来不同阶段的各项收入、支出
关于挪用资金罪,下列说法正确的有()。A.犯罪主体是国家机关工作人员 B
下列有关图2中蛋白质的叙述,正确的是( )。 A.含有两条肽链 B.
调查发现,养宠物的人往往身体比较健康,心理比较乐观。从以上的事例中,我们可以得出
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)