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
2023-09-05
33
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 29 to 31 are based on the passage you have just heard.
29. What happened to the complete London underground railway in 1969?
30. Who does all the checking and collecting of tickets on the Victoria Line?
31. 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可知,本题可能考查动作的施与者。短文中提到Here a machine checks and collects the tickets(在这里机器进行所有的检票和收票工作),由此可知,答案为[D]。
转载请注明原文地址:https://tihaiku.com/zcyy/2987069.html
相关试题推荐
[originaltext]Amongwesternrichcountries,peopleintheUnitedStateswor
[originaltext]Formostpeople,readinganewspaperhasbecomeahabitpasse
[originaltext]W:Lookwhatamessyou’vemade!I’vetoldyouseveraltimes,but
[originaltext]W:Lookwhatamessyou’vemade!I’vetoldyouseveraltimes,but
[originaltext]W:Lookwhatamessyou’vemade!I’vetoldyouseveraltimes,but
[originaltext]W:Lookwhatamessyou’vemade!I’vetoldyouseveraltimes,but
[originaltext]W:Lookwhatamessyou’vemade!I’vetoldyouseveraltimes,but
[originaltext]W:Lookwhatamessyou’vemade!I’vetoldyouseveraltimes,but
[originaltext]Evenatschooltherehadbeenanunhealthycompetitionbetwee
[originaltext]Evenatschooltherehadbeenanunhealthycompetitionbetwee
随机试题
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butman
Aroundtheworldyoungpeoplearespending【B1】______sumsofmoneytolisten
[audioFiles]2016m4x/audio_ezfj_166_20164[/audioFiles]
手术人员已洗好手,进行手术区域皮肤消毒铺单后穿戴好无菌手术衣及手套,上台准备手术
王某是某基金管理公司信息技术部的开发人员,拥有公司全部信息技术的操作权限,从内部
关于挖孔桩施工的技术要求,错误的是()A、桩孔间距小于3倍间距时必须间隔交错跳
对BP-2B母线保护装置电压闭锁元件叙述正确的是:()。低电压为母线线电
绵马贯众的主产地是A.浙江、广州 B.福建、四川 C.山东、河南 D.黑龙
根据塑料外护套配线要求,下列说法正确的是( )。A.敷设在顶棚内要敷设在金属管或
电梯安装自检试运行结束后,由()负责进行校验和调试。A.电梯安装单位 B.电
最新回复
(
0
)