首页
登录
职称英语
[originaltext] The economic costs of noise to society are several. Airports
[originaltext] The economic costs of noise to society are several. Airports
游客
2023-08-19
42
管理
问题
The economic costs of noise to society are several. Airports are currently operating at less capacity because of noise regulations which restrict their hours of operation. For instance, at Washington’s National Airport jet traffic is not allowed from 11 pm to 7 am. Other airports restrict the use of certain runways. One estimate is that noise restrictions reduce possible airport use by 20 percent. The profitable cargo trade is especially affected by night restrictions.
In the case of airports, jet engines may be modified to reduce their noise level. One estimate is that $5.7 billion would be required to equip all existing jet engines with noise control devices. However, even taking this step will not reduce noise levels at all points to acceptable values. Some combination of methods is probably necessary.
If all aircraft were made quieter by existing methods, there would be a number of economic benefits. [20]An increase in airport capacity would occur. Property values near airports might rise. Transportation costs to and from airports could be reduced since the airports now could be located closer to population centers.
[21]Much research still needs to be done on the economic aspects of noise reduction and noise effects. Although some of the effects of noise pollution are known, more must be discovered about its effects on health, productivity, property values and the quality of life. Furthermore, the cost of noise pollution to the economy as a whole needs to be investigated. The public must be alerted to the dangers and economic costs of noise pollution so that people may make intelligent choices and exert appropriate pressures.
19. Why is there no jet traffic at Washington’s National Airport from 11 pm to 7 am?
20. What result might noise reduction cause according to the speaker?
21. What is the passage mainly about?
选项
A、It is extremely dangerous to fly in the dark.
B、Noise regulations restrict the hours of airport operation.
C、Some of its runways are not in good condition.
D、Cargo planes produce more disturbing noises at night.
答案
B
解析
细节题。短文开头提到,由于噪音控制条例限制飞机运作时间,现今机场在以较低的容纳量运作,比如,华盛顿国家机场就规定从晚上11点到次日凌晨7点禁止飞机起降。由此可知,B为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/2940069.html
相关试题推荐
AfricanEconomicGrowthA)GoodnewsforAfrica,saythe
AfricanEconomicGrowthA)GoodnewsforAfrica,saythe
AfricanEconomicGrowthA)GoodnewsforAfrica,saythe
AfricanEconomicGrowthA)GoodnewsforAfrica,saythe
AfricanEconomicGrowthA)GoodnewsforAfrica,saythe
Itisgenerallyacknowledgedthatyoungpeoplefrompoorersocioeconomicbac
Itisgenerallyacknowledgedthatyoungpeoplefrompoorersocioeconomicbac
Itisgenerallyacknowledgedthatyoungpeoplefrompoorersocioeconomicbac
Livingnearairportsmightnotonlyleadtoresidentssufferingsleeplessni
Livingnearairportsmightnotonlyleadtoresidentssufferingsleeplessni
随机试题
Thereenactorsarebusloadsoftourists—usuallyTurkish,sometimesEuropea
Weshouldunderstandthenecessitythat______(我们为这个项目贡献出力量).we(should)dedicate
以下哪项网络由连接到控制网络的中间站点的节点组成,并且所有通信都通过该中心站点?
指导合作型的医患关系模式的特点是A."帮助病人做什么" B."告诉病人自己做什
反映胆道梗阻的酶学标志是A.ALT B.AST C.MAO D.AFP
房地产项目定位的核心内容是( )。A.对产品提出一种主题推广概念,使产品在潜在
关于代理的说法中,正确的是()。 A.代理行为是直接或间接对被代理人发
法院对下列哪些调解协议内容应当予以准许:()A.原告起诉请求被告赔偿损失7
兼有抑菌作用的鼻用减充血剂是()A.呋麻滴鼻液 B.赛洛唑啉滴鼻液 C
A.革兰阴性细菌败血症 B.革兰阳性细菌败血症 C.脓血症 D.真菌性败血
最新回复
(
0
)