首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、It might increase airport capacity. B、It might lower property values. C、It might lead to effective modification of existing je
A、It might increase airport capacity. B、It might lower property values. C、It might lead to effective modification of existing je
admin
2015-06-07
73
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.
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://kaotiyun.com/show/nIQ7777K
0
大学英语六级
相关试题推荐
Youmightthinkyoulefttheworldofcliques(小团体)andin-crowdsbehindwhenyoulefthighschool.You’dbewrong.Thebenefi
A、Theopeningupofnewmarkets.B、Theprintingofhigh-qualitycopies.C、TheincreaseduseoftheInternet.D、Therapiddevelop
Ingeneral,oursocietyisbecomingoneofgiantenterprisesdirectedbyabureaucraticmanagementinwhichmanbecomesasmall,
A、Therehasbeenalotofcontroversyovertheuseofflag.B、Thebestathletescanwearuniformswiththedesignoftheflag.C
A、SheiseagertobeacceptedintotheUniversity.B、SheiswaitingtoseeifshecouldgetthejobfromIBM.C、Sheisexpecting
Ourbodiesexperienceanebbandflowofenergythroughouttheday.Thisiscalledacircadianrhythm,andithasbeenstudied【C
Americansusuallyconsiderthemselvesafriendlypeople.Theirfriendships,however,tendtobeshorterandmore【B1】______thanf
AstheworldexcitedlygreetedSnuppy,thefirstcloned(克隆)dog,commentatorscelebratedourcleverness.Manyfeelproudthatour
A、Hedoubtsthewomanwilllikethebook.B、Hehasn’tstartedreadingthebookyet.C、Heenjoyedreadingthestories.D、Hewante
A、Withathesisstatement.B、Withalistofreferences.C、Withasummaryoftheconference.D、Withaconclusionofthepaper.A这
随机试题
调拨价格
“水火既济”是指哪两脏的关系
患者男,55岁。进行床一轮椅转移评定,患者能自己站起,需要较小的帮助转移到轮椅,可以独立完成由坐到站的转换,站立时推、拉患者不能保持平衡。患者此项的Bathel评分为
计算机病毒是一种程序,通常它隐藏在()中。
根据《证券公司为期货公司提供中间介绍业务试行办法》的规定,证券公司不得()。
甲公司属于建筑防水材料行业,是一家集研发、生产、销售、技术咨询和施工服务为一体的专业化建筑防水系统供应商。建筑防水材料是建筑功能材料的重要组成部分,随着国家基础设施建设力度的加大和城镇化速度的加快,其应用领域和市场容量将持续扩大。产业政策方面,国
王老师严厉责罚了小明后发现错不在小明,但因为小明是后进生,王老师就不打算道歉。对此。你怎么看?
制定教学计划首先考虑的问题是()。
公共领域的问题从来都不是科学的问题、统计数字的问题,而是主观认识的问题、意见的问题、想象的问题。在社会领域,民众的主观感觉才是最主要的客观事实。因此,在讨论公共政策问题的时候,看似准确的数字,其实并不像官员、专家们想象的那样重要。相反,如果一个国家的民众感
老王对老李说:“除非你在今天之内按照合同要求支付货款,否则我们法庭上见。”以下哪项判断的含义与上述判断不同?()
最新回复
(
0
)