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
2021-07-14
105
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://kaotiyun.com/show/FMJ7777K
0
大学英语六级
相关试题推荐
Forthispart,youareallowed30minutestowriteashortessayentitledSinologyforUniversityStudentsbycommentingonmore
Forthispart,youareallowed30minutestowriteashortessayentitledStudyHomeorAbroad?Youshouldwriteatleast150wo
A、Theinjuryofsomestudents.B、Aschoolbuscrashontheway.C、Thecollapseofaschoolbuilding.D、Afirethatbrokeouton
A、Trytotakegoodcareofthemselves.B、Trytoincreasetheirresilienceandoptimism.C、Trytoexercisemoreandeathealthyf
A、Bygreetingeachotherverypolitely.B、Byexchangingtheirviewsonpublicaffairs.C、Bydisplayingtheirfeelingsandemotio
A、Meethisanthropologyteacher.B、Lendhimhermagazinewhenshefinishesit.C、Comeovertohishouseafterclass.D、Speakslo
A、Itslowpurchaseprice.B、Itswideavailability.C、Itsgoodnutritionalvalue.D、Itshighwatercontent.C①选项都是表示积极信息的名词短语,推测题
A、Acab.B、AnAirportShuttleService.C、AGreyhoundbus.D、Asubway.C细节题。根据Ithinkforthatkindofdistanceacabwouldbewa
A、Tocombatcompetitionandraiseproductivity.B、Toprovidethemwithmorejobopportunities.C、Tohelpthemmaintaintheirliv
随机试题
已知在x=0处连续,则a=_________.
中年女性,下腹部受到剧烈撞击后出现轻压痛,导尿有少量血尿,6小时后,尿量仅100ml,呈血性,病人腹痛加重,并蔓延至全腹,移动性浊音阳性。为进一步确定病人的损伤类型,可做
静脉注射过程中,如发现病人局部肿胀、疼痛、试抽有回血,可能原因是
港口与航道工程安全生产要求中,施工用电应严格执行国家、地方、企业的有关标准和规定,确保施工现场用电的安全、可靠、有效的运行,(),明确各级用电安全负责人和管理人员。
下列关于混凝土细骨料的质量要求说法正确的是()。
甲公司获得一宗工业用地的土地使用权,土地使用期限为法定最高出让年限,经5年开发建设后,将其转让给乙工厂,则乙工厂获得的土地使用权最长期限为()年。
下列国家汇率采用间接标价法的是()。
根据消费税法律制度的规定,下列各项中,应当缴纳消费税的有( )。
教育是治安管理的基本手段,处罚是教育的辅助手段。()
根据下面材料回答问题。我国人口自然增长率保持目前状态,2012年我国大陆总人口将达到()。
最新回复
(
0
)