题目

阅读理解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. Tech companies around the world have been designing and testing driverless vehicles and the technology is available already.So, how do they work? The cars are covered in sensors that can detect other cars and obstacles on the road. Sensors on the wheels also help when parking. Road signs are read by cameras, and satellite navigation systems are used. Finally, a central computer system takes in all the information and processes this to work out when to accelerate, brake and steer. All you have to do is type in the destination.Sounds like your idea of heaven? Sitting back, looking out of the windows and even watching a film while "driving" will all be possible with this new technology. In addition, computers are generally more efficient drivers than humans, meaning emissions can be reduced. They also drive more safely than people—they don't get distracted by music or friends, they obey the speed limit and they have quicker reaction times in case of an emergency.However, there are still many drawbacks of driverless cars. Computers will have difficulties making ethical (道德上的) decisions. If a child ran out into the road, would the computer choose to hit the child or turn aside sharply and potentially hurt the car's passengers instead? Moreover, I personally find driving fun. I'd miss never being behind the wheel myself. There would also be legal questions. 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 license, many people would be put out of a job by the popularization of driverless cars. Bus, taxi and train drivers would be made unwanted.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 do you need to do when using a driverless car? A . Control the sensors. B . Read the road signs carefully. C . Check the satellite navigation systems. D . Put the address into the computer. （2） What does the third paragraph mainly tell us about driverless cars? A . Their emissions. B . Their advantages. C . Their testing process. D . Their reaction to an emergency. （3） How does the author analyze the shortcomings of driverless cars? A . By making a comparison. B . By analyzing their harmful effects. C . By raising some questions. D . By sharing personal experiences. （4） What does the author think of future driverless cars? A . They will be less expensive. B . They will consume less energy. C . They will do more harm than good. D . They will be more strictly controlled. 答案： B D C A

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