Question

Star scientists have taken the first ever picture of a black hole, which is from a far away galaxy (銀河系). 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 (望遠(yuǎn)鏡) 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 (萬有引力的) 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.球體 C.火團(tuán)

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