八年级英语上册 Module 3 Unit 2精品课件 外研版(小学起点)VIP专享VIP免费

Module 3Unit 2We haven’t found life on other planets yet.Discussing1.How many planets are there in the universe?2. Is there any life on other planets ?Activity 2: Read the passage and choose the best title.1. Anyone out there?2. Life on Earth3. Our solar system4. The stars at nightActivity 3: Put the words in the box in order: small--- largegalaxy, planet, solar system, star, universe planetstar --------------------solar systemgalaxyuniverseActivity 4: Check the true 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 starts has taken a long time to reach us.6.Scientists have found life on other planets.7.They have received many message from space.8.They’ve visited most of the universe.×√√√√×××Activity 5 : pair work1.There has been life on Earth for millions of years. 2.We haven’t found life on other planets yet. 3. None of them has an environment with air, so people and things cannot grow. 4. No one has discovered any life in space yet. 5. Why has no one from other planet sent us a message? 6. How much have you grown in the last three years? Language points: Scientists thinks that there has been life on Earth for millions of years. 科学家认为地球上存在生命已经数万年了。 精讲 : 这是一个含有 that 引导的宾语从句的复合句 , 从句中 there has been 是there be 结构的现在完成时态。Language points:millions of 是一个常用短语，表示 “数百万计的…” , 指不确切数字 , 而确切数字是 :one, two, three 等基数词 + hundred, thousand, million 或 billion + 可数名词复数 . e.g. 我们学校有四百名学生。There are four hundred students in our school.Language points:e.g. The old man was alone in the house, he felt very lonely . 这位老人一个人...