2017年职称英语 考试 报名:2017年职称英语理工类B级完形填空及翻译模拟练习（2）

　An Intelligent Car(智能汽车)

　　Driving needs sharp eyes, keen ears, quick brain, and coordination between hands and the brain. Many human drivers have all these and can control a fast-moving car. But how does an intelligent car control itself?

　　There is a virtual driver in the smart car. This virtual driver has “eyes”, “brains”, “hands” and “feet”, too. The minicameras on each side of the car are his “eyes”, which observe the road conditions ahead of it. They watch the traffic to the car’s left and right. There is also a highly automatic driving system in the car. It is the built-in computer, which is the virtual driver’s “brain”. His “brain” calculates the speeds of other moving cars near it and analyzes their positions. Basing on this information, it chooses the right path for the intelligent car, and gives instructions to the “hands” and “feet” to act accordingly. In this way, the virtual driver controls his car.

　　What is the virtual driver’s best advantage? He reacts quickly. The minicameras are sending images continuously to the “brain.” It completes the processing of the images within 100 milliseconds. However, the world’s best driver at least needs one second to react. Besides, when he takes action, he needs one more second.

　　The virtual driver is really wonderful. He can reduce the accident rate considerably on expressways. In this case, can we let him have the wheel at any time and in amy place? Experts warn that we cannot do that just yet. His ability to recognize things is still limited . He can now only drive an intelligent car on expressways.

　　智能汽车

　　开车需要目光锐利、耳朵灵敏、反应敏捷和手脑间的协作。许多人类司机这些条件部具备，并可控制一辆急速行驶的汽车，但一辆智能车如何进行自控?

　　智能车中有一位虚拟驾驶员。这位司机同样有“眼”，有“脑”，有“手”，有“脚”。车两侧的微型摄像头就是他的眼，负责观察车前方的路况。他们注意着车两侧的交通情况，车中也有高度自动化的驾驶系统。这就是内置的电脑，也就是虚拟司机的大脑。这个大脑计算出车近旁正在运动车辆的速度，并分析它们的位置。基于这些信息，它为智能车选择昀佳路径，并给出指示以让手脚做出相应运动。通过这样的方式，虚拟司机就对车辆实行了控制。

　　虚拟司机的昀大优点是什么?他的反应速度很快。微型摄像头不断向“大脑”发送图像数据。他完成图像处理的时间为100毫秒。然而，世界上昀优秀的人类司机也至少需要1秒钟的反应时间。当他作出行动时，又多得一秒。

　　虚拟司机的确很棒。在高速公路上，他可大大减少事故发生率。鉴于此，我们是否可以让他在任何时间任何地点都驾驶汽车呢?专家们警告说，我们现在还不能这样做。智能车辨别事物的能力还很有限。目前，这种车只能在高速公路上行驶。

2017年职称英语理工类B级完形填空及翻译模拟练习（2）.doc

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