【创新设计】2016-2017学年高中英语 Unit 4 Astronomy the science of the stars Period One Warming Up Reading课时作业 新人教版必修3.doc

Unit 4 Astronomy the science of the stars 话题导入 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 the 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 field 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) had 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)appeared，man did not know what kind of gases is in the sun or other stars.Without the radio telescope(电望远镜) 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. 根据上文完成下列各题 1．The oldest science known to man is astronomy. 2．What does the underlined word “it”(Line 5，Paragraph 3) probably refer to？(1 word) Saturn. 3．What does the passage mainly tell us? Science can’t grow fast without modern technology. Period One　Warming Up Reading Ⅰ.单词 1．v.multiply乘；增加 exist存在；生存 puzzle(使)迷惑；(使)为难 2．n.astronomy天文学 system系统 religion宗教 theory理论；学说 atom原子 billion万亿；十亿 globe球体；地球仪 carbon碳 atmosphere大气层；气氛 chain链子；连锁 oxygen氧 3．adj.violent猛烈的，激烈的 fundamental基本的；基础的 harmful有害的 Ⅱ.短语 1．及时；终于in time 2．下蛋lay eggs 3．产生；分娩give birth to 4．轮到某人；接着in one’s turn 5．阻止，制止prevent...from 1．No one knows exactly how the earth began，as it happened so long ago. 没有人确切知道地球是怎样形成的，因为在很早以前它就形成了。 2．The earth became so violent that it was not clear whether the shape would last or not. 地球变得激烈动荡，不知道这个固体形状是否会继续存在下去。 3．It was not