2007年真题讲解。
下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。
An Intelligent Car
Driving needs sharp eyes, keen ears, quick brain, and coordination(协调)between hands and the brain. Many human drivers have all（51）and can control a fast-moving car. But how does an intelligent car control itself?
There is a virtual(虚拟的)driver in the smart car. This virtual driver has“eyes,”“brains,”“hands”and“feet,”too. The minicameras（52）each side of the car are his“eyes,”which（53）the road conditions ahead of it. They watch the（54）to the car’s left and right. There is also a highly automatic driving（55）in the car. It is the built-in computer, which is the virtual driver’s“brain.”His“brain”（56）the speeds of other moving cars near it and analyzes their positions. Basing on this information, it chooses the（57）path for the intelligent car, and gives instructions to the “hands”and“feet”to act accordingly. In this way, the virtual driver（58）his car.
What is the virtual driver’s best advantage? He reacts（59）.The mincemeats are bringing（60）continuously to the “brain.”It completes the processing of the images within 100 milliseconds.（61）,the world’s best driver needs at least one second to react. Besides, when he takes（62）,he needs one more second.
The virtual driver is really wonderful. He can reduce the accident（63）considerably on expressways(高速公路).In this（64）,can we let him have the wheel at any time and in any place? Experts（65）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.
51.A.these B. them C. this D. that
52.A.in B. above C. to D. on
53.A.change B. observe C. improve D. meet
54.A.police B. traffic C. pets D. trees
55.A.button B. door C. system D. activity
56.A.calculates B. reaches C. gathers D. reduces
57.A.different B. narrow C. same D. right
58.A.stops B. finds C. controls D. selects
59.A.quickly B. cleverly C. virtually D. safely
60.A.ideas B. news C. memory D. images
61.A.so B. However C. Besides D. Therefore
62.A.action B. role C. decision D. notice
63.A.investigation B. prevention C. rate D. report
64.A.case B. method C. manner D. file
65.A.expose B. warn C. hope D. wish
文章详解：
1. 标题An(冠词，表数量，一个，一种) Intelligent（聪明的、有头脑的、智能的） Car（汽车。这是理工类常涉及考题的！）
来源：中国职称英语考试网 2. Driving（动名词做主语，是开车的意思） needs（谓语动词，需要） sharp（灵敏的） eyes, keen（敏锐的） ears, quick（快的） brain（大脑、头脑）, and coordination(协调)between hands and the brain.
3. Many（许多的，修饰复数可数名词） human（人的、人类的） drivers have all（所有的，相当于形容词，与前面一句联系，后面应该跟复数概念的名词或代词。）（51）and can control（控制） a fast-moving（复合形容词，快速移动的） car. (51).A.these（指代eyes, ears, brain, hands） B. them（不符合英文
