首页
登录
职称英语
[originaltext] The world’s first completely automatic railway has been built
[originaltext] The world’s first completely automatic railway has been built
游客
2024-04-27
7
管理
问题
The world’s first completely automatic railway has been built under the busy streets of London. The railway is called the Victoria Line, and it is part of the complete London underground railway.
The new Victoria Line was opened in 1969. This new line was very different from the others. The stations on the other lines need a lot of workers to sell tickets, and to check and to collect them when people leave the trains. This is all different on the Victoria Line. Here a machine checks and collects the tickets, and there are no workers on the platforms.
On the train, there is only one worker. If necessary, this man can drive the train. But usually he just starts it: it runs and stops by itself. The trains are controlled by electrical signals which are sent by the so-called "command spots". The command spots are the same distance apart. Each sends a certain signal. The train always moves at the speed that the command spots allow. If the command spot sends no signals, the train will stop.
Most of the control work is done by computers. The computers also fix the train’s speeds, and send the signals to the command spots.
Other machines make sure that the trains are always a safe distance apart. One train may stay too long at a station: the other trains will then automatically move slower. So there is no danger of accidents on the line.
Questions 19 to 21 are based on the passage you have just heard.
19. What happened to the complete London underground railway in 1969?
20. Who does all the checking and collecting of tickets on the Victoria Line?
21. What is the task of the only worker on the Victoria Line train?
选项
A、A platform worker.
B、A computer.
C、The command spot.
D、A machine.
答案
D
解析
选项均为表人或物的名词词组表明,本题可能考查动作的施予者。短文中提到Here a machinechecks and collects the tickets(在这里机器进行所有的捡票和收票工作),由此可知,答案为D)。
转载请注明原文地址:https://tihaiku.com/zcyy/3573307.html
相关试题推荐
[originaltext]M:DidyouhearabouttheaircrashthatoccurredinSouthAmeric
[originaltext]W:Hello,Patrick.Isthatyou?M:Yeah,Jane.WhatcanIdofor
[originaltext]W:Hello,Patrick.Isthatyou?M:Yeah,Jane.WhatcanIdofor
[originaltext]M:Ineedtofindadentist.YousaidyouknowDr.Smithwell.Do
[originaltext]M:Ineedtofindadentist.YousaidyouknowDr.Smithwell.Do
[originaltext]M:Ineedtofindadentist.YousaidyouknowDr.Smithwell.Do
[originaltext]Wedonotknowwhenmenfirstbegantousesalt,butwedokn
[originaltext]Wedonotknowwhenmenfirstbegantousesalt,butwedokn
[originaltext]Wedonotknowwhenmenfirstbegantousesalt,butwedokn
[originaltext]Theworld’sfirstcompletelyautomaticrailwayhasbeenbuilt
随机试题
Ifyouweretobeginanewjobtomorrow,youwouldbringwithyousomebasic
Bullying(欺凌弱小者)atSchool:TacklingtheProblemA.A
工业管道系统泄漏性试验的正确实施要点有()。A.输送极度和高度危害介质的管道必
患者,男性,19岁。突然动作显著缓慢,整天卧床,不起来吃饭,也不上厕所,叫他推他
下列关于货币政策对证券市场影响的说法中,错误的是()。A.如果中央银行大量购进
关于卫生健康创新发展的高峰论坛围绕“创新驱动,健康中国”主题,_________
我国《公司法》关于发起人资格的规定,包括()。A:发起人可以是法人 B:发起
贝克提出的认知治疗技术包括()。多选A.去中心化 B.识别认知性错误
治疗急性呼吸窘迫综合征最有效的措施是( )。A.应用呼气末正压通气 B.持续
患者,第一胎孕36周,发现血压升高3周,今晨突然腹痛,诉为持续性,阵发加重,血压
最新回复
(
0
)