astronomythe science of the stars課件2

1、成才之路 · 英語,路漫漫其修遠(yuǎn)兮 吾將上下而求索,人教版 · 必修3,Astronomy：the science of the stars,Unit 4,The Greeks studied astronomy over 2,000 years ago. They could see the size, color, and brightness of stars. They could see their pla

2、ces 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. Un

3、til there were telescopes(望遠(yuǎn)鏡), 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 170

4、0s, people thought there were only six planets.,Before the spectroscope(分光鏡), man did not know what kind of gases are in the sun or other stars. Without the radio telescope(電波望遠(yuǎn)鏡) we did not know that radio noises come f

5、rom 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

6、 what kind of gases are in the sun and other starsB．there are eight planets in spaceC．there was much noise in spaceD．science can't grow fast without modern technology2．Thousands of years ago，________.A．man watch

7、ed the stars with their eyes　　　　　　B．telescopes helped man to study the starsC．man knew nothing about the skyD．man knew Saturn has rings around it,3．When the Greeks watched the stars, they knew all of the following ex

8、cept________.A．the color of the stars B．the size of the starsC．the movement of the starsD．what the stars were made of4．Man now knows ________.A．the moon has rings around it B．there are six planetsC．Saturn's

9、rings can be seen by human eyesD．radio noises come from far out in space,文章大意：天文學(xué)是最古老的科學(xué)。隨著科技進(jìn)步，我們對(duì)它的認(rèn)識(shí)也越來越多。1．D　主旨大意題。文章第一段為主題段，此段的最后一句話為主題句，其他段都是圍繞這一主題展開，故答案選D。2．A　細(xì)節(jié)理解題。由第一段第二、三句話可知，在幾千年前人們主要通過肉眼來觀察星球。3．D　細(xì)節(jié)理解題。由