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1、2022四级考试细致阅读练习题(2)Part II Reading Comprehension(35 minutes)Directions: There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the correspon
2、ding letter on the Answer Sheet with a single line through the center.来源：考试大的美女编辑们Passage OneQuestions 21 to 25 are based on the following passage.Unless we spend money to spot and prevent asteroids (小行星) now, one might crash into Earth and destroy life as we know it, say some scientists.Asteroids a
3、re bigger versions of the meteoroids (流星) that race across the night sky. Most orbit the sun far from Earth and dont threaten us. But there are also thousands of asteroids whose orbits put them on a collision course with Earth.Buy $50 million worth of new telescopes right now. Then spend $10 million
4、 a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one, the scientists say, well have a way to change its course.Some scientists favor pushing asteroids off course with nuclear weapons. But the cost wouldnt be cheap.Is it worth it? Two things experts conside
5、r when judging any risk re: 1) How likely the event is; and 2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500,000 years. Sounds pretty rarebut if one did fall, it would be the end of the world. “If we dont
6、take care of these big asteroids, theyll take care of us,” says one scientist. “Its that simple.”The cure, though, might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth? “The world has less to fear from doomsday (毁灭性的) rocks than from a great nuclear fl
7、eet set against them,” said a New York Times article.21. What does the passage say about asteroids and meteoroids?A) They are heavenly bodies different in composition.B) They are heavenly bodies similar in nature.C) There are more asteroids than meteoroids.D) Asteroids are more mysterious than meteo
8、roids.22. What do scientists say about the collision of an asteroid with Earth?A) It is very unlikely but the danger exists.B) Such a collision might occur once every 25 years.C) Collisions of smaller asteroids with Earth occur more often than expected.D) Its still too early to say whether such a co
9、llision might occur.23. What do people think of the suggestion of using nuclear weapons to alter the courses of asteroids?A) It sounds practical but it may not solve the problem.B) It may create more problems than it might solve.C) It is a waste of money because a collision of asteroids with Earth i
10、s very unlikely.D) Further research should be done before it is proved applicable.24. We can conclude from the passage that _.A) while pushing asteroids off course nuclear weapons would destroy the worldB) asteroids racing across the night sky are likely to hit Earth in the near futureC) the worry a
11、bout asteroids can be left to future generations since it is unlikely to happen in our lifetimeD) workable solutions still have to be found to prevent a collision of asteroids with Earth25. Which of the following best describes the authors tone in this passage?A) Optimistic. B) Critical. C) Objectiv
12、e. D) Arbitrary.Passage TwoQuestions 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 nearly 75 percent using a simple optical illusion. Bent stripes, called chevr
13、ons (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 Automobile Association Foundation for Traffic Safety in Washington D.C. is planning to repeat Japans success. Starting next year, the foundation will pain
14、t 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 wi
15、ll conduct its tests in areas where speed-related hazards are the greatestcurves, 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 wi
16、thin 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 lasting reduction in highway sped and the number of traffic accidents.26. The passage mainly discusses _.A) a new way of highway speed control
