八年级英语上册Module3JourneytospaceUnit2Wehaven’tfoundlifeonotherplanetsyet.教学课件外研版.ppt

天津外国语大学附属滨海外国语学校 外研初中二年级上册 Module 3 Journey to space Unit 2 We haven’t found life on other planets yet. 行星 太阳系 也 没有一个 环境 空气 planet solar system also none environment air New words 生长 部分 星系 十亿 宇宙 光线 grow-grew-grown part galaxy billion universe light 在之外 孤独 入口 价钱为；花费 更喜欢 beyond alone entrance cost-cost-cost prefer-preferred-preferred the Earth the sun the moon Mars 火星 Venus 金星 Mercury 水星 Jupiter 木星 Saturn 土星 Uranus 天王星 Neptune 海王星 The solar system Our Galaxy — The Milky Way (银河) There are more than 200 billion stars in our galaxy (星系), and our Sun is only one of them. There are other galaxies in the universe. The stars we see at night are the suns in other solar systems. Other Galaxies Warm Up 1. How many planets are there in our solar system? 2. Is there any life on other planets? The best title of the passage is: ___ Anyone out there? Life on Earth Our solar system The stars at night Read the passage and choose the best title. Put the words and expressions in the box in order: small – large. galaxy, planet, solar system, star, universe 3 2 1 3 4 5 1. planet 2. star 3. solar system 4. galaxy 5. universe Check the true sentences. The Earth is a star. The Sun is a star. 3. There is more than one galaxy. 4. Our galaxy is part of the Milky Way. √ × × √ 7. They’ve received many messages from space. 8. They’ve visited most of the universe. × × 5. The light from stars has taken a long time to reach us. 6. Scientists have found life on other planets. × √ Read Para 2 answer questions: 1. What does the earth go around? 2. How many planets go around the sun? 3. What is in the solar system? It goes around the sun. Eight planets do. The sun and its planets are in it. Read Para 3 fill in the blanks: The stars we see ________ are the suns in other ___________. There are __________ 200 billon stars in our galaxy, called the __________, and our sun is only ___________. at night solar system