2000年1月大学英语四级考试试题及答案 |
2006-2-17 1:13:19 点击数： 进入论坛 |
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C) the worry about asteroids can be left to future generations since it is unlikely
to happen in our lifetime
D) workable solutions still have to be found to prevent a collision of asteroids
with Earth.
25. Which of the following best describes the author"s tone in this pass age?
A) Optimistic. B) Critical. C) Objective. D) Arbitrary.
Questions 26 to 30 are based on the following passage:
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 nea rly 75 percent using a simple optical illusion.Bent stripes，called chevrons (人字形)painted on the roads make drivers think that they are d riving 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 rep eat 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 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 areas where speed - related hazards are the greatest - curves，exit slopes，traffic c ircles，and bridges.Some studies suggest that straight，horizontal bars painted across roads can initially cut the average speed of drivers in half.However，t raffic often returns to full speed within months as drivers become used to seeing the painted bar.Chevrons，scientists say，not only give drivers the impress ion that they are driving faster than they really are but also make a lane sppea r to be narrower.The result is a longer lasting reduction in highway speed and the number of traffic accidents.
26. The passage mainly discusses .
A) a new way of highway speed control
B) a new pattern for painting highways
C) a new approach to training drivers
D) a new type of optical illusion
27. On roads painted with chevrons drivers tend to feel that.
A) they should avoid speed - related hazards
B) they are driving in the wrong lane
C) they should slow down their speed
D) they are approaching the speed limit
28. The advantage of chevrons over straight，horizontal bars is that the former .
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
29. The American Association Foundation for Traffic Safety plans to .
A) try out the Japanese method in certain areas
B) change the road signs across the country |
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| 2007年4月大考时间 |
| 2007年4月21日-4月22日 |
| 2007年7月加考时间 |
| 2007年7月7日-7月8日 |
| 2007年10月大考时间 |
| 2007年10月27日-10月28日 |
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