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
2023-09-04
55
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/2984010.html
相关试题推荐
[originaltext]Accordingtoaweatherexpert’sprediction,theatmospherew
[originaltext]W:Thisfoodisterrible!ICan’tevenfinishmydinner.M:Ikno
[originaltext]W:Thisfoodisterrible!ICan’tevenfinishmydinner.M:Ikno
[originaltext]M:Ireallydon’tknowwhattodothissummer.Ican’taffordto
[originaltext]M:Ireallydon’tknowwhattodothissummer.Ican’taffordto
[originaltext]M:I’vebeencallingDavidforthepasthalfhour.butIkeepgett
[originaltext]M:I’vebeencallingDavidforthepasthalfhour.butIkeepgett
[originaltext]M:I’vebeencallingDavidforthepasthalfhour.butIkeepgett
[originaltext]M:I’vebeencallingDavidforthepasthalfhour.butIkeepgett
【B1】[br]【B10】[originaltext]Rightnow£4millionhasbeenspenttargeting
随机试题
[originaltext]Oneday,apoorboywhowastryingtopayhiswaythroughsch
箱梁体需分二次浇筑时,第一次和第二次浇筑的时间应间隔至少()小时。A.12 B
飞达健身器材制造有限公司专业生产各种健身器材,几年来,公司业务迅猛发展,逐渐成为
《伤寒论》原著中,半夏泻心汤证的成因是A、桂枝汤证过汗 B、桂枝汤证误下 C
。关于扁桃体肿大,叙述正确的是A.Ⅰ度肿大为刚超过咽腭弓 B.Ⅱ度肿大为达到中
关于要约,下列说法正确的有()。A:要约到达重要约人时生效B:要约可以撤回C
一位中风患者的右侧肢体瘫痪,其大脑皮层左半球的病变区域位于A.额叶 B.顶叶
贷款银行应根据贷款种类,在()个工作日内,告诉借款单位流动资金贷款审批结果.A
2014年1月个体工商户小王与小赵在民政局领取结婚证,约定在婚姻关系存续期间所得
男装卸工,40岁。腰扭伤,经治疗腰痛缓解,但仍有左下肢麻痛并放射,查体:腰背肌痉
最新回复
(
0
)