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 driver1 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 virsual 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____ that we cannot do that5 just yet6. His ability to recognize things is still ____15____. He can now only drive an intelligent car on expressways.
词汇:
coordination / / n.协调,协同
virtual /adj.虚拟的
minicamera n.微型相机
accordingly / adv.相应地
millisecond // n.毫秒
expressway / / n.高速公路
注释:
1.virtual driver:虚拟驾驶员
2.Basing on this information:基于这些信息。Basing on this information是现在分词短语,用作状语。
3.best advantage:最大的优点
4.have the wheel:掌握方向盘,也就是驾驶汽车的意思。
5.that:that替代上一句的let him have the wheel at any time and in any place。
6.just yet:迄今还。yet意为迄今还,常用于否定句中。just修饰yet,起强调的作用。
练习:
1. A these B them C this D that
2.A within B above C to D on
3.A police B traffic C trucks D buses
4.A mechanical B movable C automatic D electronic
5.A another B other C each other D one another
6.A line B lane C track D path
7.A space B locations C instructions D time
8.A quickly B cleverly C virtually D safely
9.A bringing B taking C sending D carrying
10.A selects B completes C uses D tests
11.A at least B at most C at last D at best
12.A So B However C Besides D Therefore
13.A count B amount C digit D rate
14.A warn B suggest C invite D check
15.A unknown B few C untested D limited
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