What are they？ Module 3Unit 2We havent found life on the other planets yet. GalaxyPlanetUniverseStarSolar systemPlanetSolar system GalaxyUniverse Star Fast reading:Put the words in the box in order from small to large（從小到大排列）galaxy, planet, solar system, star, universe planet star - - -solar system galaxy universe R e a d p a r a g r a p h（段落） 1 a n d 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?No, we havent Millions ofplanet Because none of them has an environment with air. The sun and its planets Read paragraph 3and 4,and choose the correct answer.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 Read paragraph 5and 6, then check the sentences 1,Scientists have found life on other planets2,They havent received many messages from space 3,They have visited most of the universe 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,Theyve received many messages from space. 8,Theyve visited most of the universe . Put the sentences into English.1 很難弄清楚宇宙到底有多大 It is _ _ understand how _ _ _ _.2. 科學(xué)家認為地球上的生命已有數(shù)百萬年 Scientists think that _ _ _ life on Earth for _ _ years.3. 來自星星上的光花了很長時間才到我們這兒來 The light from stars _ _ a long time _ _ us .4. 我們還沒有在其他星球上發(fā)現(xiàn)生命 We _ _ life on other planets _.hard to large theuniverse is there has beenmillions of has taken toreach havent found yet (Group work) Translation 1,我們在其他星球上沒發(fā)現(xiàn)生命。 2，這些行星上沒有空氣的環(huán)境，所以人類和其他生物無法生存 3，他們的光線要經(jīng)過很多年才能到達地球。 4，很難知道宇宙有多大We havent found life on other planets yet.None of them has an environment with air, so people and things cannot grow.Their light has travelled for many years to reach the Earth Its very difficult to know how large the universe is. HomeworkRetell （復(fù)述 ）the passage.Thank you for your listening