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
76
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 might increase airport capacity.
B、It might lower property values.
C、It might lead to effective modification of existing jet engines.
D、It might cause more transportation costs to and from airports.
答案
A
解析
细节题。短文提到,如果现存方法可以降低飞机噪音的话,将会带来许多经济利益:机场容纳量将会提升……。由此可知,A为正确答案。B、D与原文相悖;C是noise reduction的原因,而不是结果。题目中多个选项在录音中都有提及时,要注意适当地做记录。
转载请注明原文地址:http://tihaiku.com/zcyy/2940070.html
相关试题推荐
[originaltext]Domesticdogscanperceiveimagesontelevisionsimilarlyto
[originaltext](19)AnthropologysophomoreVanTruongrecentlycombinedart
[originaltext](19)AnthropologysophomoreVanTruongrecentlycombinedart
[originaltext](19)AnthropologysophomoreVanTruongrecentlycombinedart
[originaltext]Teenagershavefewerfriendsthan20yearsago,researchhas
[originaltext]Teenagershavefewerfriendsthan20yearsago,researchhas
[originaltext]Teenagershavefewerfriendsthan20yearsago,researchhas
[originaltext]W:HowistheArgentinianeconomynow?Therewasacrashafewye
[originaltext]W:Hi,Mark,nicetoseeyouhere.Iheardaboutyourhorsebackj
[originaltext]W:Hi,Mark,nicetoseeyouhere.Iheardaboutyourhorsebackj
随机试题
Ironically,intheUnitedStates,acountryofimmigrants,prejudiceanddiscr
Protestsattheuseofanimalsinresearchhavetakenanewandfearfulchar
游离木脂素能溶于()A.水 B.乙醇 C.氯仿 D.乙醚 E.苯
患儿,9岁。水肿、少尿3天,头痛、呕吐1日,因突然抽搐急来就诊,体检:意识不清,
下图是南宋李嵩的《货郎图》,此图反映的是()。 A.娱乐业的兴起 B.农业
以下属于尿量不增加的情况是()。A.尿崩症 B.糖尿病 C.利用利尿剂
A. B. C. D.
以下不是牙周手术适应证的是A.基础治疗不能彻底清除根面刺激物 B.牙槽骨吸收外
根据《中华人民共和国邮政法(修订草案)》,实行政府定价,资费标准由国务院价格主管
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
)