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  3. Believe it or not, optical illusion (错觉) can cut highway crashes. Japan is a case in? point. It has reduced automobile crashe

Believe it or not, optical illusion (错觉) can cut highway crashes. Japan is a case in? point. It has reduced automobile crashe

admin2011-02-28  33
问题    Believe it or not, optical illusion (错觉) can cut highway crashes.
   Japan is a case in? point. It has reduced automobile crashes on some roads by nearly 75 percent using a simple optical illusion. Bent stripes, called chevrons (人字形) painted on the roads make drivers think that they are driving faster than they really are, and thus drivers slow down.
   Now the American Association Foundation for Traffic Safety in Washington D. C. is planning to repeat Japan’s success. Starting next year, the foundation will paint chevrons and other patterns of stripes on selected roads around the country to test how well the patterns reduce highway crashes.
   Excessive speed plays a major role in as much as one fifth of all fatal traffic accidents, according to the foundation. To help reduce those accidents, the foundation will conduct its tests in are. as where speed-related hazards are the greatest-curves, exit slopes, traffic circles, and bridges. Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half. However, traffic often returns to full speed within months as drivers become used to seeing the painted bar.
   Chevrons, scientists say, not only give drivers the impression that they are driving faster than they really are but also make a lane spear to be narrower. The result is a longer lasting reduction in highway speed and the number of traffic accidents.
The advantage of chevrons over straight, horizontal bars is that the former______ .
选项 A、can keep drivers awake
B、can cut road accidents in half
C、will have a longer effect on drivers
D、will look more attractive
答案C
解析 本题属细节性问题。这个问题出现在文章的最后一段，读完后，对比四个选项。首先，我们可以排除选项A can keep drivers awake和D选项will look more attractive，因为这两个选项的内容文中没有出现。现在只剩下B选项can cut road accidents in half和C选项will have a longer effect on drivers，对比这两个选项时我们发现，B选项的内容说的不是 chevron的优点，而说是的straight，horizontal
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