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() 9. A number of tourists Yangzhou many times because it's such a beautiful city.

   A. have been to   B. has been to   C. has gone to   D. have gone to

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四、完成句子(15分)

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六、閱讀理解(20分)

                  (A) 

     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 (天文學家) .They believe intelligent life exists (存在) somewhere in the universe. They also think we will soon contact these beings.

     Why do Shostak and Barnett think intelligent life exists on other planets? The 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 (哈勃望遠鏡) have shown that there are at least 100 billion galaxies (銀河) ,” says Shostak. “And our galaxy,the Milky Way,has at least 100 billion stars. Some planets going around these stars might be similar to Earth."

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   A. astronomers   B. farmers

   C. singers       D. drivers

() 2. 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

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

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   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.

() 4. Why haven't beings from space visited us yet according to Shostak?

   A. 亇hey’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.

() 5. What does the underlined phrase “l(fā)ife forms” in the last paragraph mean?

   A. Messages   B. Tools

   C. Intelligent beings   D. Radio signals

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