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
78
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
In1932,inthedepthofthedepression,theAmericanpeoplechose______asthe
她英语教得很好。SheisagoodteacherofEnglish.英美人一般不会说SheteachesEnglishwell,这种表达语意
A、TherearemoresenatorsinAmerica.B、ThesenatorsintheUSaremorerational
根据全国老龄工作委员会(theChinaNationalCommitteeOnAging)的数据来看,到2053年,中国60岁及以上的老人数量
根据《金融企业准备金计提管理办法》和《商业银行贷款损失准备金管理办法》相关规定,
抗心律失常药物中仅能用于室性心律失常的药物是A、利多卡因 B、奎尼丁 C、胺
规定“国家培养青年、少年、儿童在品德、智力、体质等方面全面发展”内容的是()
设真空中点电荷+q1和点电荷+q2相距2a,以+q1为中心、a为半径形成封闭球面
依票据法原理,票据具有无因性、设权性、流通性、文义性、要式性等特征。关于票据特征
流动式起重机的( )是选用流动式起重机的依据。A.额定起重量 B.最大起升高
最新回复
(
0
)