六、跨科学·无人驾驶汽车阅读理解。
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. Companies are testing these cars—they just need to see if they're valuable to earn money and run final tests to check if they can run alongside human-driven cars on the road.
So how do they work? The cars have sensors(传感器) all around which can detect other cars on the road. Sensors on the wheels also help know how far it is from other cars when parking. Cameras read road signs, and satellite navigation systems(卫星导航系统) help the car know where to go. You only need to type in the address! Finally, a central computer system takes in all information it receives from the sensors and cameras and works out the best route.
People don't need to worry about remembering directions to the places they want to go. They can drive more safely than people. They can follow the traffic rules and have quicker reactions(反应) when they are in danger. No one needs a driving license(驾驶执照) and they can help save money for everyone.
However, many people worry about the driverless cars. They are concerned that computers in driverless cars may have difficulties making ethical(道德的) decisions. If a child runs into the road, will the computer choose to hit the child or make a turn and it may kill people in cars? There are many things that people have to think about. They need to decide whether to allow children or drunk people to be in a driverless car by themselves. Or do we need to have an adult
with a driving license in the car all the time?
I'm not sure I'd want a driverless car because there are still many things that I can't understand.
(
D
)1. What can the sensors on the wheels of a driverless car help people do?
A. Read road signs clearly.
B. Find the best driving way.
C. Connect to the satellite navigation system.
D. Know how far it is from other cars when parking.
(
C
)2. What good point of driverless cars is mentioned in the passage?
A. They don't need any money.
B. They are faster than other cars.
C. They can drive more safely than people.
D. They don't need to follow the traffic rules.
(
A
)3. What do people worry about driverless cars?
A. They may have difficulties making ethical decisions.
B. Little children can be in the driverless cars at any time.
C. Drunk people will drive the driverless cars by themselves.
D. They will hit the child and kill people in cars at the same time.