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 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(哈勃望远镜) 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 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.”

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

Singing songs is fun, but is it also useful? For learning English pronunciation(发音), Mr. Joe thinks songs are the most useful way to learn. At the same time, you can learn some new words and phrases while singing songs. Mr. Joe has used songs to help himself learn French, Spanish, Japanese and Chinese. You should do the same.

Some words used in songs are not everyday English, so you have to be careful how you use song lyrics(歌词)when you speak. Most words and sentences are very useful. You don't have to sing songs aloud if you are shy, but after learning a song you should be able to follow the words without looking at the lyrics. When you can do that, you have learned something that you will never forget!

Some good songs to listen to are from the Beatles, John Denver and the Carpenters. Their songs are not too fast and the lyrics are close to normal spoken English. Just for fun, you can try Mr. Joe's favorite singer, B.B. King. His songs are not easy at all! If you can understand even 80% of "Why I Sing the Blues", you are a very advanced student.

If you become good at singing English songs, you can try to go to karaoke and sing with your friends. When you are able to sing a song in another language, even if you don't sing so beautifully, you will really impress(给......深刻印象) other people!

1.Which is Mr. Joe’s mother language?

A. French. B. English.

C. Chinese. D. Japanese.

2.Singing English songs can help us, EXCEPT______.

A. pronounce correctly B. remember new words

C. learn English D. sing songs better

3.The underlined word "advanced" in Paragraph 3 can be replaced by______.

A. careful B. excellent

C. kind-hearted D. lazy

4.Which of the following would be the best title for the passage?

A. English Songs.

B. The Famous Band-The Beatles.

C. English Songs helps English Learning.

D. How to Learn English.

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网