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
2024-05-16
40
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.
Questions 29 to 31 are based on the conversation you just heard.
29. Why is there no jet traffic at Washington’s National Airport from 11 pm to 7 am?
30. What result might noise reduction cause according to the speaker?
31. 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
转载请注明原文地址:http://tihaiku.com/zcyy/3600276.html
相关试题推荐
[originaltext]Musicwhichisoriginalisindividualandpersonal.Thatist
[originaltext]Theeconomiccostsofnoisetosocietyareseveral.Airports
[originaltext]Theeconomiccostsofnoisetosocietyareseveral.Airports
[originaltext]Theeconomiccostsofnoisetosocietyareseveral.Airports
[originaltext]M:Didyoufeellikeyouneedmorehoursfromtheday?Well,Good
[originaltext]Ienteredhighschoolhavingreadhundredsofbooks.ButIwa
[originaltext]Studiesshowthattelevisionplaysabigpartintheliveso
[originaltext]Studiesshowthattelevisionplaysabigpartintheliveso
[originaltext]Studiesshowthattelevisionplaysabigpartintheliveso
[originaltext]M:Hi,Sarah,what’sup?W:Oh,hi.Ijustgotoutofahistoryc
随机试题
Youaretowriteinnolessthan120wordsonthetopicMyFavoriteFormofEnte
[originaltext]M:Hello,B&BCompany.Jane’sspeaking.HowcanIhelpyou?W:Hell
—Itlookslikerain,doesn’tit?—______.AndIforgotmyraincoat.A、No,itisn
[originaltext]Mrs.Joneswasveryfondofsinging.Shehadaverygoodvoic
Mostpeoplethinksuccessisagoal.Idonot.Iseesuccessasaprocess.M
下列属于合法药品广告的是()A.药品广告内容超出国家食品药品监督管理局批准的
下述哪一点不符合神经内分泌细胞特征A、属于一些特化的神经细胞 B、通过胞突接
医学人道主义的含义包括A.认为人的生命是宝贵的 B.人的生命和尊严具有最高的价
指出下列药物的适宜灭菌方法 维生素C注射液A.滤过灭菌法 B.干热灭菌法
以下哪项中的书法家不属于“楷书四大家”?()A.赵孟頫 B.欧阳询 C.颜真
最新回复
(
0
)