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
44
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 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
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:https://tihaiku.com/zcyy/2905716.html
相关试题推荐
AfricanEconomicGrowthA)GoodnewsforAfrica,saythe
AfricanEconomicGrowthA)GoodnewsforAfrica,saythe
AfricanEconomicGrowthA)GoodnewsforAfrica,saythe
AfricanEconomicGrowthA)GoodnewsforAfrica,saythe
AfricanEconomicGrowthA)GoodnewsforAfrica,saythe
AfricanEconomicGrowthA)GoodnewsforAfrica,saythe
AfricanEconomicGrowthA)GoodnewsforAfrica,saythe
[originaltext]StudentsinAmericanschoolslearnfromanearlyagetogivep
[originaltext]Thefirstyearofcollegeisoneofthebestandthemostinte
[originaltext]Thefirstyearofcollegeisoneofthebestandthemostinte
随机试题
Whatisthemaintopicofthepassage?[originaltext]Rapidpopulationgrowth
AGenomeMilestoneItwasthebiggestscientificgru
WhatwastheboxofficeofTheFifthElemento-nitsfirstweekend?[originaltex
Ifyouaskedmetodescribetherisingphilosophyoftheday,I’dsayitis
人民解放军转入战略反攻,其主攻方向是( )A.山东地区 B.陕甘宁地区
患者,男,40岁。头痛连及项背,遇风则痛甚,恶风寒,喜裹头戴帽,口不渴,苔薄白,
治疗:患者:医院( )。A.付款:顾客:商场 B.观看:观众:影院 C.判
下列关于蝶式套利描述中,正确的是()。A.它是一种跨期套利 B.它是无风
(2011年)某厂现有工程SO2排放量为300t/a,扩建工程SO2产生量为
下列符合电缆安装技术要求的有()。A.电缆安装前,1KV以上的电缆要做直流耐
最新回复
(
0
)