Question

    Astronomy is the oldest science known to man.Thousands of years ago man looked at the stars and wondered about the heavens.But man was limited by what he could see with his eyes alone.

The Greeks studied astronomy over 2,000 years ago.They could see the size，color，and brightness of stars.They could see their places in the sky.They watched the stars move as the seasons changed.But the Greeks had no tools to help them study the starry heavens.

Each new tool added to the files of astronomy；it helped man reach out into space.Until there were telescopes(望远镜)，man knew little about the moon.They did not know that the planet called Saturn(土星) has rings around it.Their sight was so limited that they could not see all the planets.In the early 1700s，people thought there were only six planets.

Before the spectroscope(分光镜)，man did not know what kind of gases are in the sun or other stars.Without the radio telescope(电波望远镜)we did not know that radio noises come from far out in space.

Today，astronomy is a growing science.We have learned more in the last fifty years than in the whole history of astronomy.

1.The passage mainly tells us ________.

A.the spectroscope helps man know what kind of gases are in  the sun and other stars

B.there are eight planets in space

C.there was much noise in space

D.science can’t grow fast without modern technology

2.Thousands of years ago，________.

A.man watched the stars with their eyes

B.telescopes helped man to study the stars

C.man knew nothing about the sky

D.man knew Saturn has rings around it

3.When the Greeks watched the stars，they knew all of the following except ________.

A.the color of the stars

B.the size of the stars

C.the movement of the stars

D.what the stars were made of

4.Man now knows ________.

A.the moon has rings around it

B.there are six planets

C.Saturn’s rings can be seen by human eyes

D.radio noises come from far out in space

Answer

1.D

2.A

3.D

4.D

【解析】

本文是一篇说明文。文章介绍了随着高新技术的发展，天文学得到迅速的发展。

1.

主旨大意题。根据文章最后一段“Today，astronomy is a growing science. We have learned more in the last fifty years than in the whole history of astronomy.”及全文内容可知，文章介绍了随着高新技术的发展，天文学得到迅速的发展。故选D。

2.

细节理解题。由第一段第三句话“But man was limited by what he could see with his eyes alone.”可知，在古代人们主要通过肉眼来观察恒星。故选A。

3.

细节理解题。由第二段“They could see the size，color，and brightness of stars. They could see their places in the sky. They watched the stars move as the seasons changed.”可知，希腊人观察星星，了解星星的大小、颜色和亮度，以及星星随着季节的变化而移动。只有D项的内容＂恒星是由什么组成的＂没有提到。故选D。

4.

细节理解题。由第四段最后一句Without the radio telescope(电望远镜) we did not know that radio noises come from far out in space.可知，现在，人们已经知道无线电的噪音来自遥远的太空。故选D。