Question

                            (B)

    Is there intelligent (有智力的) life on other planets? For years,scientists said “no”，or “we don't know”. But today this is changing. Seth Shostak and Alexandra Barnett are astronomers (天文学家). They believe intelligent life exists (存在) somewhere in the universe.They also think we will soon contact these beings (人;生物) .

   Why do Shostak and Barnett think intelligent life exists on other planets? "Fhe first reason is time.Scientists believe the universe is about 12 billion years old.uThis is long enough for other planets to have intelligent life,say Shostak and Barnett.The second reason is size—the universe is huge. “ Tools like the Hubble Telescope (哈勃望远镜) have shown that there are at least 100 billion galaxies,says Shostak.wAnd our galaxy,the Milky Way,has at least 100 billion stars.Some planets going a-round these stars might be similar to Earth.?，

   In the past,it was hard to look for signs of intelligent life in the universe.But now,powerful telescopes (高倍望远镜) allow scientists to discover smaller planets—the size of Mars or Earth—in other solar systems. These planets might have intelligent life.

   Have beings from space already visited Earth? Probably not” says Shostak. “ It's a long way away. However,intelligent beings may contact us in other ways,such as radio signals (信号) .In fact,they may be trying to communicate with us now,but we don't have the right tools to receive their messages. However,this is changing. By 2025,we could make contact with other life forms in our universe and we might help each other."

6. Seth Shostak and Alexandra Barnett are  .

   A. astronomers   B. farmers

   C. singers   D. drivers

7. What is the best title for Paragraph 2 ?

   A. The Age and Size of Earth

   B. Our Galaxy：The Milky Way

   C. Why Intelligent Life Might Exist

   D. Earth;The Only Planet with Intelligent Life

8. Why was it hard to look for signs of intelligent life in the universe in the past?

   A. There were not any smaller planets.

   B. There were not any powerful telescopes.

   C. The astronomers were not interested in them.

   D. The Milky Way didn't exist at that time.

9. Why haven’t beings from space visited us yet according to Shostak?

   A. They’re afraid of us.

   B. It's a long way away.

   C. They don't want to see us.

   D. They don't know how to use radio signals.

10. What does the underlined phrase “life forms” in the last paragraph mean?

   A. Messages.           B. Tools.

   C. Intelligent beings.    D. Radio signals.

Answer 1

6. A 7. C 8. B 9. B 10. C

(B)

[语篇解读]这是一篇说明文。文章告诉我们按照两名天文学家的推断，在其他行星上可能存在着有智力的生命，并且将来可能和宇宙中的其他生命取得联系并互相帮助。

6. A细节理解题。由第一段第四句可知，他们都是天文学家。

7. C推理判断题。第二段主要回答了“为什么科学家认为在 其他行星上存在有智力的生命”这个问题，故选C.

8. B推理判断题。由第三段第二句可知，现在有高倍望远镜 的帮助，使得科学家们可以发现其他较小的行星。而过去，是因为没有高倍望远镜，所以无法发规。

9. B细节理解题。由文章最后一段中It's a long way away.可知选1

10. C词义猜测题。由句意“到2025年，我们可能和我们宇宙 中的其他生命形式取得联系并且互相帮助”，可知选C.