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
92
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、To drive the train after it is started automatically.
B、To start the train and to drive it when necessary.
C、To take care of the passengers on the train.
D、To send commanding signals to the command spot.
答案
B
解析
选项均以不定式开头表明,本题考查做某事的目的或行为活动。文中提到On the train,there is only one worker.If necessary,this man can drive the train.But usually he just starts it(列车上仅有的一名工人通常只需启动火车,必要的时候才亲自驾驶),由此可知,答案为[B]。
转载请注明原文地址:https://tihaiku.com/zcyy/2987070.html
相关试题推荐
[originaltext]"Ifyouaskmetelevisionisunhealthy,"Isaidtomyroommat
[originaltext]ThereareroughlythreeNewYorks.Thereis,first,theNewY
[originaltext]ThereareroughlythreeNewYorks.Thereis,first,theNewY
[originaltext]W:Now,couldyoutellmewheretheideaforthebusinessfirstc
[originaltext]M:Idon’tknowwhattodo.IhavetodrivetoChicagonextFrida
[originaltext]M:Idon’tknowwhattodo.IhavetodrivetoChicagonextFrida
[originaltext]M:Idon’tknowwhattodo.IhavetodrivetoChicagonextFrida
[originaltext]M:Idon’tknowwhattodo.IhavetodrivetoChicagonextFrida
[originaltext]M:Idon’tknowwhattodo.IhavetodrivetoChicagonextFrida
[originaltext](32)Familiesfacebeingrationedto80bagsofrubbishayear
随机试题
Telecommuting—substitutingthecomputerforthetriptothejob—hasbeen
喷射混凝土的喷射工艺有()。A.干喷 B.湿喷 C.潮喷 D.水喷
女性,50岁,发现血糖高10年,血糖控制欠佳1个月。入院时空腹血糖17.8mmo
李某以前在银行工作,现在上海期货交易所工作,张某、赵某、王某、罗某想要投资上海期
艾宾浩斯通过对无意义音节的学习来研究遗忘,他的研究结果被画成曲线,得出遗忘的规律
求助者一般资料:男性,33岁,公司经理,未婚。 临床表现:求助者几个月前,因
肾功能不全患者给药方案调整方法有A.减小剂量 B.延长给药间隔时间 C.减少
ABC公司研制成功一种新产品,现在需要决定是否大规模投产,有关资料如下: (1
股票的价值是指其实际股利所得和资本利得所形成的现金流入量的现值。()
急性化脓性腹膜炎的手术指征中,下列哪项是错误的A.弥漫性腹膜炎无局限趋势 B.
最新回复
(
0
)