阅读理解: Some people don’t believe that driving more slowly can save lives．But the truth is that driving more slowly can help a person to avoid serious accidents． The following chart shows the distan 题目和参考答案——青夏教育精英家教网—

阅读理解：

　　Some people don’t believe that driving more slowly can save lives．But the truth is that driving more slowly can help a person to avoid serious accidents．

　　The following chart shows the distance that it takes to stop a car at a given speed．The distance is measured in feet．The shaded area shows the driver's thinking distance．That's the distance it takes for the driver to react to a danger that he sees．The white area shows the car's braking distance．That's the distance it takes for the car to stop once the brakes are used．The number at the top of each bar shows the total number of feet that it takes to stop the car．

(1)

According to the chart, what is the total number of feet needed to stop a car that is traveling at 50 miles per hour?
[　　]
A．	55
B．	73
C．	128
D．	183

(2)

What is the braking distance for a car that is traveling at 60 miles per hoar?
[　　]
A．	66 feel．
B．	119 feet．
C．	185 feet．
D．	251 feet．

(3)

Which of the following statements about braking and speed is true?
[　　]
A．	The braking distance is what it takes for the driver to react to a danger that he sees．
B．	The speed of a car has a direct influence on the distance needed to stop the car．
C．	The braking distance increases only when a driver drives faster than 50 miles per hour,
D．	Driving slowly can help a person to avoid all accidents．

答案：1．D;2．C;3．B;
解析：

(1)	解题关键是图表上方的文字解释。The number at the top of each bar shows the total number of feet that it takes to stop the car．(柱形条上方的数据表明将车刹住所需英尺的总数。)因此，该题选择D。
(2)	The white area shows the car’s braking distance。That’s the distance takes for the car to stop once the breaks are used．(白色区域表示汽车刹车的距离。即当刹车时，汽车停下来所需要的距离。)因此，该题选择C。
(3)	根据文章第一段以及图标所示，汽车的速度直接影响到了刹车距离的长短，因此B项为正确答案。A项中the braking distance的定义下错了，参照上一题解析；C项从图标中就可看出，司机在以每小时30－70英里的时速行驶时，刹车距离都要增加，only一词用错了；D项可根据第－段的第二句话排除，行驶较慢可使司机避免，serious accidents(重大事故)，而不是all accidents(所有事故)。

提示：

本文通过数字调查论证了慢速行驶可有助于避免重大交通事故。

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