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
56
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’re similar to a radio-controlled model aircraft
B、They fly throughout the world freely just like eagles.
C、They can autonomously comply with the air rules.
D、They are more flexible and faster than bigger aircraft.
答案
A
解析
①从选项看,此题可能跟某种飞机的飞行情况有关。②演讲者提到一些小的无人机已经应用于商业用途,但是在大部分国家他们的飞行受控于地面飞行员,所以它们的飞行方式与无线电控制的模型飞机如出一辙。故A正确。
转载请注明原文地址:https://tihaiku.com/zcyy/2928135.html
相关试题推荐
[originaltext]TodayI’dliketotalkaboutthesculptorHenryMoore,inpa
[originaltext]Let’sbegintodaybydiscussingenzymes.Enzymesarewhatma
[originaltext]Let’sbegintodaybydiscussingenzymes.Enzymesarewhatma
[originaltext]Inthe18thcenturyFrencheconomistsprotestedtheexcessive
[originaltext]TheEducationSelectCommitteehasbeenexaminingtheunderac
[originaltext]TheEducationSelectCommitteehasbeenexaminingtheunderac
[originaltext]TheeconomiccrisisinEuropeandNorthAmericaledtomoret
[originaltext]TheeconomiccrisisinEuropeandNorthAmericaledtomoret
[originaltext]TheeconomiccrisisinEuropeandNorthAmericaledtomoret
[originaltext]M:Goodmorning.Doctor.W:Goodmorning,Mr.White.WhatcanId
随机试题
FilmisamediumthatmighthavebeenespeciallymadeforAmerica,avastco
Heworksincrediblyhardandyetneedsverylittlesleep—hemusthaveastrong__
[originaltext]M:Hello!ThisisJackSmithfromABCcompany.MayIspeaktoMr.
安管人员涂改、倒卖、出租、出借或者以其他形式非法转让安全生产考核合格证书的,由县
《建设工程安全生产管理条例》规定,发生生产安全事故后,施工单位应当采取措施防止事
将未患某病而有或无暴露因素的人群作为研究对象,其研究是()A.队列研究 B
下列关于城市工程管线综合布置原则的表述,哪些是错误的?()(2013年真题
某整体筏板大底盘建筑物,2栋高层塔楼之间为纯地下车库。基础埋深10m,地下车库顶
垃圾填埋场泥质防水层在拌合土摊铺碾压后应检验的项目是()A.压实度试验和渗水试
下列分析取源部件安装位置的要求,正确的是()。A.应安装在压力变化的位置 B
最新回复
(
0
)