学位英语

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 car’s left and right. There is also a highly 4 driving system in the car. It is the built-in computer, which is the virtual driver’s “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 to the “hands” and “feet” to act accordingly. In this way, the virtual driver controls his car.

What is the virtual driver’s 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 world’s 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

accordingly adj. 相应地 virtual adj. 虚拟的

millisecond n. 毫秒 minicamera n. 微型相机 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：昀大的优点

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 location C instructions D time

8. A quickly B cleverly C virtually sending 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

答案：1. A第一句提到的是 eyes，ears，brain等，指示代词应该用复数形式的 these，不能选 this或 that。选 them也不对，因为 all them不符合习惯用法，正确的说法是 all of them。

2. D side前面要求用介词 on。

3. B选项 B：traffic意思是“流动的车辆”，是本题的答案。 police (警察)、trucks（重型卡车）和 buses（公共汽车）表达的意思都是路况的一部分，显然与现实不符。

4. C 从上下文判断，本句的意思应该是高度自动化的驾驶系统，所以答案是 automatic。其余三个选项（mechanical机械的， movable可移动的， electronic电子的）表达的意思与上下文配不上。

5. B 从上下文判断，本句说的是“其他流动的车辆”，所以要选用 other。Another意为“另一个”， each other和 one another都是“互相”的意思，与上下文表达的意思相去甚远。

6. D 上下文的意思要求选 path（路径）。 line（线路）lane（车道）和 track（车辙），意思虽与 path接近，显然讲不通。

7. C 本句的前半句说的是电脑选定了路径，接下来自然是“……给‘手’发出指令（ instructions），‘手’就做出相应的动作”。所以 C是答案。 space，locations，time的词义与上下文的意思衔接不上。

8. A 通段讲的是虚拟驾驶员的反应速度，所以只能选 quickly。

9. C bring是“带来”， take是“带走，接受（命令）”， send是“发送（命令）”， carry是“携带”。从上下文判断，应该是“… sending images continuously to the ‘brain’”。

10. B前一句说的是微型摄像机将图像送入电脑，接下来的意思应该是电脑处理图像，完成处理图像所需的时间为 100毫秒。根据上下文表达的意思，应该选 B。

11. A 本句的起始词是 However，表示本句的意思与上一句的意思形成对比。上一句说电脑完成图像处理只需 100毫秒，第二句说，昀好的驾驶员处理的时间要长得多，应该是 at least need one second。

12. C上一句说，昀好的驾驶员至少需要 1秒的时间才能完成图像处理。本句进一步说，他做出动作还需 1秒的时间，这两句的意思是层层深入，所以要选 Besides。

13. D 根据上下文判断 ,“accident + ？”要表达的应该是“事故率”。 Rate是“比率”，所以，答案是 D。count（计数）， amount（数量）、 digit(0到 9中任何一个阿拉伯数字 )都不对。

14. C “can we let him have the wheel at any time and in any place?”涉及交通安全、人命关天的问题，能就是能，不能就是不能：什么“邀请（ invite）”、“建议（ suggest）、“检查（ check）”。都谈不上。所以，答案只能是 warn（警告）。

15. D 本句是给出目前不能 let smart car have the wheel at any time and in any place的原因。原因是它的能力 limited (有限)。对 smart car的能力一无所知（ unknown）或是没有测试过（ untested），显然与前文的意思不符。few只能与可数名词搭配， ability在本句中是不可数名词，所以， few也不是答案。

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