2017中考英語(yǔ)閱讀理解專項(xiàng)練習(xí)—Some scientists say(2)

　　2. 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. It‘s still too early to say whether such a collision might occur.

　　3. What do people think of the suggestion of using nuclear weapons to alter the course 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 is very unlikely.

　　D. Further research should be done before it is proved applicable.

　　4. We can conclude from the passage that __

　　A. While pushing asteroids off course nuclear weapons would destroy the world.

　　B. Asteroids racing across the night sky are likely to hit Earth in the near future.

　　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.

　　5.Which of the following best describes the author‘s tone in this passage？

　　A. Optimistic（樂(lè)觀的） B.Critical（批評(píng)的） C. Objective（客觀的） D. Arbitrary（武斷的）

　　參考答案：BABDC

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