必修5 Unit 1 Using Language(16)

人教版必修5 Unit 1 Using Language

3. What had the astronomers noticed in the sky? (Para 2)They had noticed that some planets in the sky seemed to stop, move backward and then go forward in a loop. Others appeared b

righter at times and less bright at others. 4. When did Copernicus complete his theory? (Para 3) Between 1510 and 1514 he worked on it, gradually improving his theory until he felt it was complete.

百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说综合文库必修5 Unit 1 Using Language(16)在线全文阅读。