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
2024-04-28
3
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.
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
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/3575409.html
相关试题推荐
[originaltext]Theeconomiccostsofnoisetosocietyareseveral.Airports
[originaltext]Theeconomiccostsofnoisetosocietyareseveral.Airports
[originaltext]Theaveragepersonlearnsmostofthe30,000-40,000wordswho
[originaltext]Theaveragepersonlearnsmostofthe30,000-40,000wordswho
[originaltext]W:Withusnow,isMalcolmBricklin,CEOofVisionaryVehicles.M
[originaltext]W:Withusnow,isMalcolmBricklin,CEOofVisionaryVehicles.M
[originaltext]W:Withusnow,isMalcolmBricklin,CEOofVisionaryVehicles.M
[originaltext]M:Idon’tenjoydatinganymore.[19]Ican’tseemtofindanyone
[originaltext]M:Idon’tenjoydatinganymore.[19]Ican’tseemtofindanyone
[originaltext]W:Thankheavens!You’rebacksafeandsound.Everyonewasworrie
随机试题
ThechildrenwenthomefromtheEnglishschool,theirlessons______fortheday.A
IsHeadphoneGoodforWork?A)MarissaYuworksinabusyoff
【T1】______areactually【T2】______.Whiletheyare,perhaps,【T3】______tome
材料与混凝土检测内容包括()。A.原材料及构配件试验检(试)验(水泥、钢筋、骨
全陪与地陪核对行程,错误的做法是( )。A.坚持活动计划以旅游合同为准 B.
病理性的持续睡眠状态,可被唤醒,并能正确问答问题称为A.嗜睡 B.意识模糊
发电机转子穿装工艺要求有()。A、转子穿装前进行单独气密性试验 B、经漏气量试
(共用题干)患者女,45岁。腰椎压缩性骨折对症处理40天无好转,腰部疼痛加剧,活
2020年1—12月,我国稀土及其制品出口量环比上升的月份有几个?A.5
国际收支失衡时,一国当局可采取的人为调节机制包括()。A.产业政策 B.收入
最新回复
(
0
)