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
63
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, properly 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:https://tihaiku.com/zcyy/2938683.html
相关试题推荐
[originaltext]WhenMidoriwastwoyearsold,sheoftenclimbedontothepia
[originaltext]WhenMidoriwastwoyearsold,sheoftenclimbedontothepia
[originaltext]WhenMidoriwastwoyearsold,sheoftenclimbedontothepia
[originaltext]Theprivatemotorvehiclehasgivenusafreedomourancestor
[originaltext]ForaverylongtimeAmericahasledtheworldinhighereduc
[originaltext]W:2millionhighschoolseniorsaregearingupthisfalltoappl
[originaltext]W:2millionhighschoolseniorsaregearingupthisfalltoappl
[originaltext]W:Goodmorning,class.TodayIthoughtwewouldtalkaboutsomet
[originaltext]W:Whatareyouscratchingyourheadfor?M:I’vebeenrackingmy
[originaltext]W:Whatareyouscratchingyourheadfor?M:I’vebeenrackingmy
随机试题
[originaltext]Thehumanbrainprocessesmaleandfemalevoicesdifferently,
一些条件较好的地区,作物一年可以收获三次。Insomefavoredareas,threecropsayeararepossible.“条件较
[originaltext]OwnershipofunderseagoldtreasurediscoverednearaSpanishshi
《汉语拼音方案》是( )等的罗马字母拼写法的统一规范。A.中国组织机构名 B
不平衡性首先是指机体某一方面的机能受损甚至缺失后,可通过其他方面的超常发展得到部
下列()不属于混凝土结构工程中的质量通病。A.填充墙与梁板接合处开裂 B.混
能治疗风湿痹痛的风热解表药是A.葛根 B.桑叶 C.蔓荆子 D.蝉
再贴现政策的优点是()。A:有利于中央银行发挥最后贷款人的作用 B:有利于中
我国执业药师在接受患者的咨询中,最应当遵循的是A.清廉正派 B.团结协作 C
()受理仲裁申请后,应对调解协议进行审查,调解协议合法有效且不损害公共利益或者第
最新回复
(
0
)