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An Intelligent Car Driving needs sharp eyes, keen ears, quick brain, and coordination between hands and the brain. Many human drivers have all ____1____ and can control a fast-moving car. But how does an intelligent car control itself? There is a virtual drive1 in the smart car. This virtual driver1 has eyes, brains, hands and feet, too. The minicameras ____2____ each side of the car are his eyes, which observe the road conditions ahead of it. They watch the ____3____ to the cars left and right. There is also a highly ____4____ driving system in the car. It is the built-in computer, which is the virtual drivers brain. His brain calculates the speeds of ____5____ moving cars near it and analyzes their positions. Basing on this information2, it chooses the right ____6____ for the intelligent car, and gives ____7____ to the hands and feet to act accordingly. In this way, the virtual driver controls his car. What is the virtual drivers best advantage3? He reacts ____8____. The minicameras are ____9____ images continuously to the brain. It ____10____ the processing of the images within 100 milliseconds. However, the worlds best driver ____11____ needs one second to react. ____12____, when he takes action, he needs one more second. The virtual driver is really wonderful. He can reduce the accident ____13____ considerably on expressways. In this case, can we let him have the wheel4 at any time and in any place? Experts ____14____ what we cannot do that5 just yet6. His ability to recognize things is still ____15____. He can now only drive an intelligent car on expressways. | 
