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
Collision between an aircraft and one or more birds is termed a bird-strike. Pilots sometimes record a birdstrike while at cruis
Collision between an aircraft and one or more birds is termed a bird-strike. Pilots sometimes record a birdstrike while at cruis
admin
2018-10-19
58
问题
Collision between an aircraft and one or more birds is termed a bird-strike. Pilots sometimes record a birdstrike while at cruising altitudes, but most of them happen when an aircraft is relatively close to the ground, usually in proximity to an airport and during the circling, descent to land or take-off phases of a flight.
Birdstrikes may cause significant damage to an aircraft and/or, if the birds are ingested into a jet engine, a significant and sudden loss of power. If this were to happen during take-off or initial climb of a fully loaded passenger aircraft the results could be catastrophic-loss of the aircraft and the lives of those on board. Any bird is a potential hazard to aircraft and this is especially true as bird numbers and bird size increase.
Unfortunately airports themselves can be attractive to birds -rodents, insects and other small animals are a food source often found in flat grassed areas such as the runway strips. Even so, this problem can be reduced by careful habitat management or bird harassment techniques practised by airport maintenance and safety personnel.
Further problems may arise because the airport is located on bird migration routes. These may have existed prior to the airport site selection-but may not have been taken into account because the problem was not understood at the time—or have only been recently established because the birds have found an attractive new food source. Care needs to be taken by local authorities in deciding the location of rubbish tips, or when permitting other land uses that may be attractive to birds in this way. Of course these effects cannot always be anticipated with certainty since birds such as gulls have been recorded as travelling 50 kilometres or more from their roosting area to an attractive food source.
Agricultural uses may be thought desirable because they are compatible with high levels of noise exposure, but they can have an adverse effect on air-craft operations if birds are attracted during seeding or crop cultivation. Birds may also be attracted to pig farms where garbage is used as fodder. Even tree plantings can present a hazard if the species provides an attractive food source or nesting habitat.
Local authority planning schemes often apply strict controls on developments such as abattoirs, cattle feed lots, grain handling, piggeries, canals and marina developments, fish farms, and suchlike. In most cases these uses will not be permitted without a full environmental study. That study should be required to deal with the question of likely bird hazards if the proposed location is in proximity to an airport.
In some instances it may be necessary to consider ways of managing a particular land use in order to reduce its attractiveness to birds, for example the adoption of land-fill measures at garbage tips, or enclosed rather than open-air activity. Specialist ornithological opinion may be necessary. In such cases it may not be possible to implement immediate changes in land use, but this should not inhibit the adoption of long-term measures which are designed to achieve this. Question 71 to 75
Complete the summary below with information from the passage, using three words or fewer for each blank.
A collision between an aircraft and one or more birds is known as a bird strike. It usually happens when an aircraft is close【R1】______, and may result in significant damage of the aircraft or loss of the aircraft and【R2】______of passengers and crew if they occur during take-off or initial climb. Because birds can find plenty food in flat grassed areas, airports are especially attractive to birds. However, the danger can be minimized by【R3】______Local authorities need to take care when deciding on【R4】______It is suggested that a full environmental study should be made before making plans of developments on the land in proximity to an airport. Local authorities should get advice from specialists and take【R5】______in order to bring about changes in land use.
【R2】
选项
答案
the lives
解析
(文章第二段提到If this were to happen…the aircraft and the lives of those on board.“当所有这些发生的时候,就会造成飞机失事,乘客失去生命。”)
转载请注明原文地址:https://kaotiyun.com/show/I98K777K
本试题收录于:
B类竞赛(英语专业本科专科)题库大学生英语竞赛(NECCS)分类
0
B类竞赛(英语专业本科专科)
大学生英语竞赛(NECCS)
相关试题推荐
Whatistheprobablerelationshipbetweenthetwospeakers?
Auctionsarepublicsalesofgoods,conductedbyanofficiallyapprovedauctioneer.Heasksthecrowdassembledintheauction-r
Althoughfewwoulddenythatit’sbettertoberichthanpoor,forsomepeoplethequestformoneyissoall-consumingthatite
DespiteoutcriesoverthelackofforeignlanguageskillsintheU.S.workforce,multinationalcorporationsaren’tworriedabou
Theboard______oftheopinionthatthenewsshouldn’tbecarriedinthenewspaper.
Acollisionbetweenanaircraftandoneormorebirdsistermedabird-strike.Pilotssometimesrecordabirdstrikewhileatcru
Acollisionbetweenanaircraftandoneormorebirdsistermedabird-strike.Pilotssometimesrecordabirdstrikewhileatcru
Ontheleftaretwoshapeswithanarrowbetweenthem.Decidedhowthesecondisrelatedtothefirst.Afterthisthereisathi
Ontheleftaretwoshapeswithanarrowbetweenthem.Decidedhowthesecondisrelatedtothefirst.Afterthisthereisathi
Acollisionbetweenanaircraftandoneormorebirdsistermedabird-strike.Pilotssometimesrecordabirdstrikewhileatcru
随机试题
简述军队政治工作涉及内容。
碳弧气刨枪的作用之一是控制压缩空气的()。
中国某省国际经济技术合作公司的张总经理在北京举行的一次国际经济技术合作洽谈会上结识了科威特胡塔(东方)有限公司驻北京办事处的代表劳尔特,经过几次接触,双方有意进行合作。1991年8月,张总经理及其随行人员应邀访问科威特,并在科威特同胡塔(东方)有限公司草签
A.丹参B.紫草C.太子参D.秦艽E.北沙参来源于唇形科的药材是
A.胰岛素B.格列苯脲C.那格列奈D.米格列醇E.二甲双胍以原形的形式排出体外,肾功能不全者禁用的是()。
表征可燃气体、蒸气和可燃粉尘危险性的主要示性数为()。
客户现金流量表在投资规划中的作用有()。I.有助于发现个人消费方式上的潜在问题Ⅱ.有助于找到解决潜在问题的方法Ⅲ.有助于了解某一时点上客户资产负债状况Ⅳ.有助于更有效地利用财务资源
专注于防御型股票投资的基金经理期望股票能进入周期性反弹或其收益能有较大的改善。( )
下列对理财产品特点的描述,属于货币型理财产品特点的有()。
按年龄层把个人生命周期比照家庭生命周期分为()阶段。
最新回复
(
0
)