Isthereintelligent(有智力的)lifeonotherplanets?Foryears,sci...

問題詳情：

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 sill soon contact these beings(人；生物).

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. “This 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,” 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.”

In the past, it was hard to look for signs of intelligent life in the universe. But now, powerful telescopes(高倍望遠鏡) 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 way, such as radio signals(信號). 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.”

(  ) 1. Seth Shostak and Alexandra Barnett are _____.

       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?

 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,

(  ) 4. 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.

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

       A. Messages               B. Tools         C. Intelligent beings           D. Radio signals

【回答】

1，關鍵詞爲Seth Shostak and Alexandra Barnett兩個名字，文章第一段第四句話Seth Shostak and Alexandra Barnett are astronomers，因此本題*爲A

2，根據第二段第一句話Why do Shostak and Barnett think intelligent life exists on other planets?判斷本段的核心爲闡述爲何這兩名天文學家相信其他星球上存在智力物種，因此本題選擇C

3，關鍵詞爲hard to look for signs in the past，根據第三段第二句話But now, powerful telescopes(高倍望遠鏡) allow scientists to discover smaller planets，因此判斷出主要原因是過去沒有高倍望遠鏡，因此*選擇B

4，關鍵詞beings from space visited us，根據文章最後一段第三句話It’s a long way away.因此本題選擇B

5，劃線詞life forms出現在最後一段，根據we could make contact with other life forms in our universe中life forms前的contact以及other這兩個詞，對比本段第四句話intelligent beings may contact us in other way，因此判斷life forms就是指intelligent beings，因此本題選擇C

知識點：人物傳記 故事閱讀類

題型：閱讀理解