树兰中学.ppt

Unit 4 Astronomy: the science of the stars Test your common knowledge: Who is the first Chinese astronaut to go into space? ___________ What was the date when he circled the earth in space? A) November 15, 2003 B) October 15, 2003 C) September 17, 2004 D) December 17, 2004 Which country first sent people up to the space, the USA or the Soviet Union? So far, how many countries have succeeded in sending people up to space? _______ The Solar system Match the planets 水星 金星 地球 火星 木星 土星 天王星 海王星 Period 1How Life Began on the Earth Fast reading 1.When did the dust settled into a solid globe? 2.Why did animals first appear in the seas? 3.Why were mammals different from other animals? 1.When did the dust settled into a solid globe? 2.Why did life first appear in the seas? 3. Why were mammals different from other animals? What is the passage about? It is about the developing of the earth. Careful reading How did water come into being on the earth? How did water come into being on the earth? The explosion of the earth produced water vapor, which turned into water when the earth cooled down. 3. What problem is caused by human beings ? Put the order of development of life into a timeline 1.Insects and amphibians appeared. 3.The earth became a solid ball. 5.Reptiles appeared. 7.The earth was a cloud of dust. 9.Shellfish and other fish appeared. 11.Clever animals with hands and feet appeared. Why is it wrong in the films and stories to show dinosaurs and people together? Homework 1.Search the Internet for the information of the development of life. 2. According to the timeline, try to write a short passage. * 树兰中学 Zhao Shuhui Yang liwei three eight planets many comets other objects （太阳系） THE SOLAR SYSTEM Can you name each planet correctly? 水星________ 金星 _______ 地球 ______ 火星________ E. 木星________ F. 土星 _______ 天王________ 海王________ Earth Jupiter Mars Mercury Neptune Saturn Uranus Venus 1.Uranus 2.Jupiter 3.Mercury 4.Mars 5.Venus 6.Saturn