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
2023-08-07
27
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. 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.
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.
9. Why is there no jet traffic at Washington’s National Airport from 11 pm to 7 am?
10. What result might noise reduction cause according to the speaker?
11. 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
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/2905712.html
相关试题推荐
经济领域economicfield;economicsphere
老龄化社会agingsociety
经济腾飞economictake-off
当代社会contemporarysociety
“一带一路”(theBeltandRoad)指的是“丝绸之路经济带”(theSilkRoadEconomicBelt)和“21世纪海上丝绸之
[originaltext]Objectsthatarevibratingmakesounds.Rhythmicsoundvibrations
[originaltext]Objectsthatarevibratingmakesounds.Rhythmicsoundvibrations
[originaltext]Inorderforachemicaltobeconsideredadrug,itmusthavethe
[originaltext]Inorderforachemicaltobeconsideredadrug,itmusthavethe
[originaltext]IntheUnitedStates,manypeopleoncelivedinlarge,two-and-th
随机试题
Clearlyifwearetoparticipateinthesocietyinwhichwelivemustcommu
A—toholdameetingF—formalsittingB—workingpartyG—plenarymeetingC—meeting
男,3个月,昨日突然寒战、高热、哭闹、呕吐2次,并发现面部、眶下区红肿。检查见:
使用GoldWave软件对音频文件“我爱你中国.wav”进行处理,原音频文件的参
根据《房产税暂行条例》的规定,从价计征方式下,房产税依照房产原值一次减除()后的
宏观调控的目标主要有()。A:完善体制 B:充分就业 C:价格稳定 D:
2017年5月,某市食品药品监督管理部门对该市串串香食品有限公司进行突击检查,将
声屏障对于声影区内的敏感建筑物有降噪作用。在高速公路一侧20m处建有20层、高6
某施工企业编制抹灰人工定额,该企业有6年同类工程的施工工时消耗资料,则编制人工定
在建设工程施工的合同分析中,承包人的主要任务是()。A.明确总任务,即合同标的
最新回复
(
0
)