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
43
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
【B1】[br]【B10】A、SinceB、AsC、BecauseCJimmy回答某人的问题“Whydoyou...”。
Onions(洋葱)Ilikeonionsverymuch.Inotonlyliketoeatonionsraw(生的天然的),
BecauseAtlascoursesstarteveryMondayoftheyear,there’sboundtobeon
TheeightchipmunkspeciesoftheSierraNevadarepresentbutafewofthe1
生态系统的氮循环属于______型循环。
控制器和手动按钮的维护保养:与火灾自动报警系统联动的防火卷帘控制器要定期进行远程
患儿,男,5岁。反复眼睑水肿2个月,尿常规:尿蛋白(++),红细胞满视野,血清中
A.肾B.肝C.脾D.肺E.心调节血量的是
如果表格中涉及到的数据均为年末数据,则2010年—2019年,全国职业高中人
案例五: 下面是某求助者16PF的测验结果: 关于HAMA,正确
最新回复
(
0
)