Whatarethey.pptVIP

What are they？ Fast reading:Put the words in the box in order from small to large（从小到大排列） galaxy, planet, solar system, star, universe Read paragraph（段落） 1and paragraph2 ,then answer the questions 1,Have we found life on other planets? 2,There has been life on Earth for ______ years. 3,The Earth is a _____and it goes around the sun 4,what is called the solar system? 5,why people and things cannot grow in other plants? Read paragraph 3and 4,and choose the correct answer. Read paragraph 5and 6, then check the sentences 1,The Earth is a star . 2,The Sun is a star. 3,There is more than one galaxy. 4,Our galaxy is part of the Milky way. 5,The light from stars has taken a long time to reach us. 6 Scientists have found life on other planets 7,They’ve received many messages from space. 8,They’ve visited most of the universe. Put the sentences into English. 1 很难弄清楚宇宙到底有多大． It is ______ _______ understand how _________ _______ ________ _______. 2. 科学家认为地球上的生命已有数百万年． Scientists think that _______ ______ ______ life on Earth for _______ _____ years. 3. 来自星星上的光花了很长时间才到我们这儿来． The light from stars _____ _____ a long time _____ _____ us . 4. 我们还没有在其他星球上发现生命． We ______ ______ life on other planets ______. (Group work) Translation 1,我们在其他星球上没发现生命。 2，这些行星上没有空气的环境，所以人类和其他生物无法生存 3，他们的光线要经过很多年才能到达地球。 4，很难知道宇宙有多大 Homework Retell （复述 ）the passage. * Module 3Unit 2 We haven’t found life on the other planets yet. Galaxy Planet Universe Star Solar system Planet Solar system Galaxy Universe Star planet star ----- ----- ----- ----- solar system galaxy universe No, we haven’t Millions of planet Because none of them has an environment with air. The sun and its planets 1.There are more than 200 billion stars in our ____,called the _______ A, planet, galaxy B. galaxy , universe C, galaxy , Milky way 2,Many other galaxies in the universe are _____________. A. A long way away B. a short way away c. a heavy way away 1,Scientists have found li