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2021-2022学年度第37期总第867期 (6版)

Welcome space guest (P6)

 

 

I. Answer the following questions.

1. Why have comets fascinated humans?

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2. How big is Bernardinelli-Bernstein comet?

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3. When will the Bernardinelli-Bernstein comet  reach its closest distance to our planet?

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4. What is Oort Cloud?

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II. Critical thinking

Why is the Bernardinelli-Bernstein comet called the new record-breaking object?

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III. Translate the following sentences into English.

1. 难怪孩子们喜欢科幻小说。（It’s no wonder that …）     

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2. 这孩子对神秘的星空很着迷。（be fascinated by）

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3. 一般认为左撇子更加聪明。（be thought to do sth）

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参考答案：

I. 1. Because the comets, with their long, bright tails, streak across the sky and then disappear, some of which even return in the future.

2. Its core measures 128 kilometers across and it is a pretty snowball with a nucleus 50 times larger than those of other comets. Its mass is estimated at 500 trillion tons, which is 100,000 times greater than average.

3. In 2031.

4. It is a “bubble” of orbiting debris that encircles our solar system, where there are trillions of comets. BB has traveled at least 300 trillion kilometers from the Oort Cloud.

 

II. It’s 4 billion years old.
It is one of the largest comets and travels at 35,000 km/h.
Its core measures 128 km across, 50 times larger than other comets’ nucleus.
It has been falling toward the Sun for more than 1 million years.
It has traveled at least 300 trillion kms.
It could help us better understand Oort Cloud.
It experiences a 3-million-year-long, oval-shaped orbit.
It visited the Earth 3.5 million years ago and will return in 2031.

 

III. 1. It is no wonder that the children love science fictions.

2. The child was so fascinated by the mysterious star sky.   

3. Left-handed people are thought to be much smarter.

 

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