Question

【题目】

Have you ever seen a car without a driver? It sounds crazy, but these computer-driven driverless cars will soon be filling roads near you. Companies like Google and Tesla have been designing and testing these cars, and the technology is there-they just need to see if they're value for money ,work out insurance（保险）issues, and run final tests to check they can run alongside human-driven cars on the road.

So how do they work? The cars have sensors all around which can detect other cars and obstacles in the road. Sensors on the wheels also help when parking, so the car knows how far it is from the outside of the road or other parked cars. Road signs are read by cameras and satellite navigation systems are used so the car knows how to get to your destination. All you have to do is type in the address! Finally, a central computer system takes in all the information it receives from the sensors and cameras and processes this to work out when to speed up, brake and go.

Sound like your idea of heaven? Sitting back, looking out of the windows and even watching a film or reading a book while 'driving' would be possible with this new technology. You wouldn't have to worry about remembering directions to where you're going. In addition, computers are generally more efficient 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 quicker reaction times in case of an emergency.

However, there are many disadvantages of driverless cars. Computers would have difficulties making ethical（伦理学的）decisions ; if a child ran into the road , would the computer choose to hit the child or change the direction immediately and potentially kill the car's passengers? Moreover, I personally find driving fun-I'd miss never being behind the wheel myself. There would also be many legal decisions to be made-should children, or drunk people, be allowed in a driverless car by themselves? Or would there need to be a responsible adult with a driving licence in the car at all times?

Although being driven 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 driverless cars appear. Bus, taxi and train drivers as well as driving instructors would be made unnecessary.

I'm not convinced I'd want a driverless car-but it's only a matter of time before they'll become more affordable and commonplace on our roads.

【1】What does the second paragraph mainly tell us?

A.How driverless cars work.B.How a central computer system runs.

C.Ways in which the sensors help driverless cars.D.The helpful system that driverless cars have.

【2】What can we know from the passage?

A.The writer is eager to have a driverless car.

B.Some problems won't be solved in the future.

C.Engineers are active in improving driverless cars.

D.More factors should be considered before driverless cars go on roads.

【3】The underlined word "potentially" in Paragraph 4 means “___”

A.possiblyB.successfullyC.especiallyD.naturally

【4】Which of the following would be the best title for the passage?

A.Driverless Cars: Are You Ready for Them?B.Driverless Cars: Are They Your Favorite?

C.Driverless Cars: A Model of New TechnologyD.Driverless Cars: Just Enjoy Them

Answer 1

【答案】

【1】A

【2】D

【3】A

【4】A

【解析】

文章大意：文章介绍的无人驾驶汽车的工作原理及优缺点。

【1】主旨大意题。通读第二段，此段围绕着第二段第一行So how do they work?无人驾驶是怎么工作的。故选A。

【2】推理判断题。根据最后一段第一、二行I'm not convinced I'd want a driverless car-but it's only a matter of time before they'll become more affordable and commonplace on our roads.“我不相信我会想要一辆无人驾驶的汽车，但在我们的道路上，它们变得更加便宜和普通只是时间问题。”可知A、B项错误，C项文章没有提及，根据第四段第一、二行However, there are many disadvantages of driverless cars. Computers would have difficulties making ethical（伦理学的）decisions 可知无人驾驶汽车有一定的弊端，所以无人驾驶汽车上路之前，许多因素都应该被考虑，故答案选D。

【3】词义推断题。根据文章第四段第二行if a child ran into the road，would the computer choose to hit the child or turn suddenly and potentially kill the car's passengers？“如果一个孩子跑到马路上，电脑会选择撞到孩子还是突然转向，____会杀死车上的乘客？”并结合选项可知，这里应说电脑会选择撞到孩子还是突然转向，可能会杀死车上的乘客？所以potentially意为可能。故选A。

【4】主旨大意题。短文介绍了无人驾驶车只需要人们输入要去的地址，具体的介绍了它的优点和缺点。故最佳标题为“无人驾驶：你准备好它们了吗？”故选A。