A. Others worry about hackers (黑客). B. It was a really wonderful experience. C. But a human driver is usually still in control. D. It knows when to stop, where to turn, and how to avoid accidents. E. It could also communicate with other self-driving cars to avoid traffic. |
Ready to go to soccer practice? Tap (轻击) an app on your smart phone and get into the car that drives up—all by itself. Unlike human drivers, it never falls asleep, texts its friends, or eats a hamburger while driving.
Self-driving cars already exist (存在). And these days many car companies are trying their best to make cars smarter—some cars can already avoid accidents or park themselves.
Luckily, Google has started building 100 self-driving cars without any human controls. Instead, computer programs drive the cars. They use sensor's (传感器) that "see" 600 feet in all directions to detect obstacles (探测障碍物). One woman who took a ride in one of Google's cars said, ""
Self-driving cars could make the world a better place by cutting down the number of cars people need and the amount of oil those cars use. The car that takes you to soccer practice could know to pick up two or three of your teammates on the way.
But not everyone looks forward to a future with self-driving cars. Taxi drivers and truck drivers would lose their jobs. What if dangerous people get into the cars' brains? They could cause accidents on purpose or stop the cars from going anywhere. Finally, many people love the experience of driving.
What do you think? Will self-driving cars make the world a better place?
