Self﹣driving cars
Do you like cars?will the car be like in the future? Maybe we can sit in a car that can drive(it).
About 40 years ago, scientists from the United States(start) to develop self-driving cars. The most famous one(make) by Google in 2012. There are cameras and radars(雷达)on the top of the car. They allow the computer in the car(draw) a 3D map of the environment. Chinese scientists have also(successful) developed a self﹣driving car. The car made a tripChangsha to Wuhan.
Is a self﹣driving car safe? A recent study shows that robots make(safe) drives than humans. If 10% of cars on the street are self﹣driving ones, 1, 000 lives will be saved every year. If 90% of vehicles（交通工具） are self﹣driving ones, 21, 7000 lives will be saved a year. , a self-driving car is expensive and each costs about ＄100, 000. So it is (possible) to be very popular in the near future.
