学位英语

第5部分：补全短文(第46—50题，每题2分，共10分)

阅读下面的短文，文章中有5处空白，文章后面有6组文字，请根据文章的内容选择5组文字，将其分别放回文章原有位置，以恢复文章原貌。请将答案涂在答题卡相应的位置上。

Virtual Driver

Driving involves sharp eyes and keen ears, analyzing with a brain, and coordination between hands, feet and brain. A man has sharp eyes and keen ears, analyzes through his brain, and maintains coordination (协调) between his hands and brains. He can control a fast-moving car with different parts of his body. ___46____ Apparently there isn't anyone in the driver's cab ( 驾驶室), but there is in fact a virtual driver. This virtual driver has eyes, brains, hands and feet too. The minicameras on each side of the car are its eyes and are responsible for observing the road conditions ahead of it as well as the traffic to its left and fight. If you open the boot (行李箱), you can see the most important part of the automatic driving system: a built-in computer. ____47____The brain of the car is responsible for calculating the speeds objects surrounding the car are moving at, analyzing their position on the road, choosing the right path, and giving orders to the wheel and the control system.

In comparison with the human brain, the virtual driver's best advantage is that it reacts quickly. ____48____However, it takes the world's best racecar driver at least one second to react, and this doesn't include the time he needs to take action.

With its rapid reaction and accurate control, the virtual driver can reduce the accident rate on expressways considerably. In this case, is it possible for us to let it dirve at any time and in any place? ____49____With its limited ability to recognize things, the car can now only travel on expressways.

The intelligent car determines its direction by the clear lines that mark the lanes clearly and recognizes vehicles according to their regular shapes. ____50____ This being the case, people still have high hopes about driverless cars, and think highly intelligent cars are what the cars of the future should be like.

A. Experts say that we cannot do that just yet.

B. In the near future, intelligent cars will be put into commercial operation.

C. This is the brain of the car.

D. But how does an intelligent car control itself?

E. It completes the processing of the images sent by the cameras within 100 milliseconds.

F. However, it cannot recognize moving people and bicycles on ordinary roads that have no clear markings on them.

参考答案：

A.专家说我们还不能那样做。

B.在不远的将来，智能汽车将被投入商业运作。

C.这是汽车的大脑。

D.但是智能汽车如何进行自我控制呢?

E.它能在100毫秒内完成照相机发来的图像加工。

F.但是，它不能识别平时路上那些没有标志的移动的人或自行车。

46.【答 案】D

【解析】从原文来看，空白处前面一句讲的是“司机用身体的不同部位来控制快速行驶的汽车”，空白处的后一句说的是“明显的司机的驾驶室里没有人，只有一个虚拟的司机。这个虚拟司机也有眼、大脑、手和脚”，由此空白处的内容应该是从平常的汽车过渡到智能汽车的内容，从话题上看，依然是在讲汽车的控制，因而正确答案为D(但是智能汽车如何进行自我控制呢?)。

【考点延伸】空白处前后的句子在语义上保持一定的连贯性。

47.【答 案】C

【解析】从原文来看，空白处的前面一句讲的是“你打开行李箱，就会看见自动驾驶系统的重要部分：一个嵌入的电脑”，空白处后面一句讲“汽车的大脑负责计算汽车周围物体的速度，分析这些物体在道路的位置……”。由此可知，空白处填入的应该与电脑和汽车的大脑有关，选项C(这是汽车的大脑)就起到了连接前后句子的作用，其中this就是指代computer，即行李箱内的控制自动驾驶的电脑就如同汽车的大脑。

48.【答 案】E

【解析】空白处的前面一句讲“与人脑相比，虚拟司机的最大优势就是其反应快”。空白处后一句说的是“世界上最好的赛车司机至少要花1秒钟来做出反应，这还不包括他采取行动的时间”，可见前后的句子是在比较虚拟司机和普通司机的反应时间，所以空白处应填入与反应时间有关的内容，因此答案为E(它能在100毫秒内完成照相机发来的图像加工)为正确答案。

49.【答 案】A

【解 析】空白处的前面一句讲到“让虚拟司机在任何时间和任何地点驾驶是不是可能呢?”，空白处后一句提到“由于其辨认东西的能力有限，智能汽车现在只能在高速路上行驶”，所以空白应该填入的是否定随时随地驾驶的内容。因而答案为A(专家说我们还不能那样做)为正确答案。

50.【答 案】F

【解析】空白处前面的句子讲“智能汽车按清晰标出的车道线决定自己的行车方向，靠车辆的常规形状识别其他车辆”，空白处后面句子讲“如果是这种情况，人们对无人驾驶的汽车还有更高的期待”。“这种情况”指代的就是前面的句子，因而空白处填入的应当是有关汽车辨识的问题，而选项F(但是，它不能识别平时路上那些没有标志的移动的人或自行车)中recognize和markin9等则与前面的句子表现出一致性。

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