2. 外语
  3. Believe it or not, optical illusion (错觉)can cut highway crashes. Japan is a case in【S1】______It has reduced automobile crash

Believe it or not, optical illusion (错觉)can cut highway crashes. Japan is a case in【S1】______It has reduced automobile crash

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问题     Believe it or not, optical illusion (错觉)can cut highway crashes.
    Japan is a case in【S1】______It has reduced automobile crashes on some roads by nearly 75 percent using a simple optical illusion. Bent stripes, called chevrons (人字形),【S2】______on the roads make drivers think that they are driving faster than they really are, and thus drivers【S3】______down.
    Now the American Automobile Association Foundation for Traffic Safety in Washington D. C. is planning to【S4】______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【S5】______highway crashes.
    Excessive speed plays a major role in as much as one fifth of all【S6】______traffic accidents,  according to the foundation. To help reduce those accidents, the foundation will conduct its tests in areas where speed-【S7】______hazards are the greatest--curves, exit slopes, traffic circles, and bridges.
     Some studies【S8】______that straight, horizontal bars painted across roads Can initially  cut the【S9】______speed of drivers in half. However, traffic often returns to full speed within months as drivers become used to seeing the painted bars.
    Chevrons, scientists say, not only give drivers the impression that they are driving faster than they really are but also make a lane appear to be narrower. The result is a longer【S10】______reduction in highway speed and the number of traffic accidents.

A) reduce          B) slow             C) fatal           D) point
E) take            F) to               G) average         H) existing
I) suggest         J) related          K) painted         L) lasting
M) repeat          N) common           O) view
【S9】
选项
答案G
解析 average平均的，句中意思为“降低司机的平均速度”。
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