Question

    Star scientists have taken the first ever picture of a black hole, which is from a far away galaxy (银河系). It is 40 billion km across-three million times the size of the Earth-and has been described by scientists as "a monster".

The black hole is 500 million trillion km away and was photographed by a network of eight telescopes (望远镜) across the world.

Details have come out today in Astrophysical Journal Letters. Prof Heino Falcke, says "It is one of the heaviest black holes that we think there is. It is a real monster."

The picture shows a quite bright "ring of fire", as Prof Falcke describes it. The bright halo is caused by superheated gas fling into the hole. The light is brighter than all the billions of other stars in the galaxy-which is why it can be seen so far away from Earth.

The dark circle at the centre is the point at which the gas enters the black holes, which is an object that has such a large gravitational (万有引力的) pull, not even light can escape.

1.The black hole is ________ times the size of the Earth.

A.two million B.three million C.six million

2.In which part of the newspaper can we read this passage?

A.Sports B.Lifestyle C.Science

3.The underlined word in paragraph four means ________.

A.光圈 B.球体 C.火团

4.Which of the following is TURE?

A.The black hole is 500 million km away.

B.This black hole is the heaviest so far.

C.The light from the black hole is the brightest of all the stars.

5.From the passage, we can infer that ________.

A.Scientists are all unsatisfied with the result.

B.The black hole is dark.

C.It takes a lot of telescopes to work together to get a picture of the black hole.

Answer

1.B

2.C

3.A

4.A

5.C

【解析】

本文讲述了恒星科学家们拍摄了第一张黑洞的照片，它来自一个遥远的星系，它的直径达400亿公里，是地球的300万倍，被科学家称为“怪物”。黑洞位于5亿万亿公里外，是由全球8个望远镜组成的网络拍摄的。

1.细节理解题。根据“It is 40 billion km across-three million times the size of the Earth-and has been described by scientists as "a monster".”可知它的直径达400亿公里，是地球的300万倍，故选B。

2.细节理解题。根据“Star scientists have taken the first ever picture of a black hole, which is from a far away galaxy”可知恒星科学家们拍摄了第一张黑洞的照片，它来自一个遥远的星系，可推测出是科学板块，故选C。

3.词义猜测题。根据“The picture shows a quite bright "ring of fire"”可知这张照片显示了一个非常明亮的“火环”，可推测出该单词的意思是“光圈”，故选A。

4.推理判断题。根据“The black hole is 500 million trillion km away”可知黑洞是5万亿亿公里，与选项A内容相符；根据“It is one of the heaviest black holes that we think there is.”可知这是我们认为存在的最重的黑洞之一，与选项B内容不符；根据“The bright halo is caused by superheated gas fling into the hole. The light is brighter than all the billions of other stars in the galaxy”可知明亮的光晕是由于过热的气体进入黑洞造成的，它发出的光比银河系中其他数十亿颗恒星发出的光都要亮，与选项C内容不符；故选A。

5.推理判断题。根据“The black hole is 500 million trillion km away and was photographed by a network of eight telescopes (望远镜) across the world.”可知这个黑洞位于5亿万亿公里之外，是由全世界8个望远镜组成的网络拍摄的，可推测出需要很多望远镜一起工作才能拍出黑洞的照片。故选C。