Question

【题目】

A. necessary B. driven C. efficient D. unnecessary E. quicker

You wouldn’t have to worry about remembering directions to where you’re going. In addition, computers are generally more 【1】 drivers than humans. They would also drive more safely than people -- they are not influenced by music or friends, they would obey the speed limit and they have 【2】 reaction times in case of an emergency.

Although being 【3】 around by a machine would perhaps mean that no one needs a driving licence, saving money for everyone, many people would be put out of a job when driver-less cars appear. Bus, taxi and train drivers as well as driving instructors would be made 【4】.

Answer 1

【答案】

【1】C

【2】E

【3】B

【4】D

【解析】

本文属于说明文，主要介绍了无人驾驶汽车的工作原理，优点以及存在的问题。

【1】句意：此外，计算机通常比人类更高效。

根据“You wouldn’t have to worry about remembering directions to where you’re going.”你不必担心记住你要去哪里的方向。可知，下文应该是说计算机通常比人类更高效。故选C。

【2】句意：他们也会比人们更安全地驾驶——他们不受音乐或朋友的影响，他们会遵守限速，在紧急情况下反应更快。

根据“They would also drive more safely than people.”他们也会比人们更安全地驾驶。可知，在紧急情况下反应更快。结合所给的词语可知，应该选择quicker；是指：只有在紧急情况下反应更快，才会更安全。故选E。

【3】句意：尽管被机器驱动可能意味着没人需要驾照，为每个人节省开支，但当出现无司机汽车时，许多人会失业。

由后面的by a machine可知，前面应该是被动语态；结合所给的选项可知，只有driven是过去分词；being driven around by a machine：被机器驱动。故选B。

【4】句意：公共汽车、出租车和火车司机以及驾驶教练将变得不必要。

根据“Although being 3 around by a machine”被机器驱动。可知，一旦出现了无人驾驶的汽车，那么公共汽车、出租车和火车司机以及驾驶教练将会变得不必要了。故选D。