首页
登录
职称英语
[originaltext] [19]Within the next few weeks a twin-engined Jetstream will t
[originaltext] [19]Within the next few weeks a twin-engined Jetstream will t
游客
2023-08-15
67
管理
问题
[19]Within the next few weeks a twin-engined Jetstream will take off from Warton Aerodrome in Lancashire, England, and head north towards Scotland. Like any other flight, the small commuter airliner will respond to instructions from air-traffic controllers, navigate a path and take care to avoid other aircraft. [19]But the pilot flying the aircraft will not be in the front of it: he will have his feet firmly on the ground in a control room back at Warton.
Pilotless aircraft are now widely used by the armed forces, but they fly only in restricted airspace and conflict zones. The Jetstream mission is part of a project to develop the technologies and procedures that will allow large commercial aircraft to operate routinely and safely without pilots in the same skies as manned civilian flights.
[20]To reassure those of a nervous disposition, the test flights do not carry passengers and pilots remain in the plane just in case things go wrong. In that way they are similar to Google’s trials of driverless cars, which have drivers inside them to take over if necessary while on public roads. Yet unmanned commercial aircraft are likely to enter service before people can buy autonomous cars. Modern aircraft are already perfectly capable of automatically taking off, flying to a destination and landing. These tests are trying to establish whether they can do those things safely without a pilot and at the same time comply with the rules of the air.
Progress is being made, a conference in London heard this week. It was organized by the Autonomous Systems Technology Related Airborne Evaluation and Assessment, the group staging the British test flights. This 62 million programme, backed by the British government, involves seven European aerospace companies: AOS, BAE Systems, Cassidian, Cobham, QinetiQ, Rolls-Royce and Thales.
It is potentially a huge new market. America’s aviation regulators have been asked by Congress to integrate unmanned aircraft into the air-traffic control system. [21]Some small aircraft are already used in commercial applications, such as aerial photography, but in most countries they are confined to flying within sight of their ground pilot, much like radio-controlled model aircraft. Bigger aircraft would be capable of flying farther and doing a lot more things.
[22]Pilotless aircraft could carry out many jobs at a lower cost than manned aircraft and helicopters— tasks such as traffic monitoring, border patrols, police monitoring and checking power lines. They could also operate in conditions that are dangerous for pilots, including monitoring forest fires or nuclear-power accidents.
19. What do we learn about the commuter airliner Jetstream?
20. What does the speaker say about the test flights?
21. What do we learn about the small aircrafts?
22. What advantage do the pilotless planes have?
选项
A、They are only in restricted use by army.
B、They carry passengers but no pilots.
C、They drive automatically with pilots in them.
D、They themselves can handle anything wrong.
答案
C
解析
演讲者提到为了保证用于测试的商用无人机能应对紧急情况,飞行员仍旧留在飞机上。故C“虽有飞行员在机上,但测试机自动飞行”正确。
转载请注明原文地址:http://tihaiku.com/zcyy/2928134.html
相关试题推荐
[originaltext]Manyareasaroundtheworldsufferfromfrequentlossofelec
[originaltext]Manyareasaroundtheworldsufferfromfrequentlossofelec
[originaltext]W:Asinglecigarettesoldonastreetcornermaynotcostalot;
[originaltext]W:Asinglecigarettesoldonastreetcornermaynotcostalot;
[originaltext]IfyouareinterestedinstudyingatanAmericanuniversity,
[originaltext]IfyouareinterestedinstudyingatanAmericanuniversity,
[originaltext]Cleanairisimportanttogoodhealth.Iftheaircontainsim
[originaltext][9]VisitorstoBritainaresometimessurprisedtolearnthat
[originaltext][9]VisitorstoBritainaresometimessurprisedtolearnthat
[originaltext]W:[5]ProfessorSmith,Iwonderifyoucanfillmeinonyourlec
随机试题
我总觉得,凡是为了非倾吐不可而写的作品,都是充满了真情实感的。反之,只是为写作而写作,如上之为应付编辑朋友,下之为多拿稿费,这类文章大都是尽量地往长里写
Wearelookingforwardto(meet)______ournewteacher.meeting我们希望见到新老师.本题考查介词用法
U.S.EducationSecretaryArneDuncanappealedFridayforanewgenerationof
运输市场是指在一定时空条件下对运输产品的需求的总和。这里的需求主要包括( )。
病例对照研究设计阶段控制混杂偏倚常用A.匹配 B.分层分析 C.叉生分析
下列不属于期权的分类中按合约上的标的划分的期权()A.股票期权 B.股指
如果美元对于人民币的汇率持续走高,对我国外贸可能产生的影响有()。A.增加出口
男性,70岁,进食后饱胀不适伴反酸5年余,黑便1天。胃镜检查提示:胃多发性溃疡(
构建有效协调的宏观调控新机制,要健全以国家()为主要手段的宏观调控制度体系。A
慢性肺心病导致心力衰竭的原因中,以下最重要的是A.心肌缺氧 B.肺动脉压升高超
最新回复
(
0
)