人教版高中英语必修三 Unit4 Astronomy the science of the stars Warming up reading 课件 （共33张PPT）

课件33张PPT。Module III Unit 4AstronomyWhat’s the meaning of the word “Astronomy”?I. Warming up the science of stars; the scientific study of stars and planets.2. What words will you think of when we talk about this topic? star, planet, the sun / moon / earth, solar system 恒星 行星 太阳 月球 地球 太阳系 3. How many planets are in the solar system? 8PlutoScientists now think Pluto is too small to be called a planet.4. Do you know the correct order of their distance to the sun? nearest to the sun? farthest to the sun?5. The names of eight planets.Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune1) 水星 2) 金星 3) 地球 4) 火星 5) 木星 6) 土星 7) 天王星 8) 海王星Mercury Venus Earth Mars Jupiter Uranus Saturn Neptune6. Put them in correct order on P25.Do you know their origin?II. Pre-readingHave you ever asked your mother, “Mom, where do I come from”?2. Nearly everybody has this or that puzzles: How do human beings come into being? How does the earth come into being?3. In China, there are two legends about these puzzles. Do you know the names?盘古开天辟地 女娲补天造人 4. In the western culture, who creates everything in the world?The GodIII. Fast-readingDo you believe in such stories? Are they based on science?2. In this unit, we’ll learn something more scientific. 3. What’s the title of the text?4. From the title, we can predict that the text may tell us the origin of life on the earth.How life began on the earth5. Which question are you interested in in this text?1) How old is the earth? 2) How does the universe begin? 3) Is there any water in the Mars? 4) When did dinosaurs disappear? 5) Which animal is the most important one on the earth?6. Do you know which paragraph you can find out the answer?Para.4Para.2Para.3Para.5Para.17. Conclude the main idea of each paragraph. 1) A widely _____ about the _____ of the universe. 2) The formation of the _____. 3) The _____ of water for life. 4) The development of _____ and _____ on the earth. 5) The arrival of _____ and their _____ on the earth. The text mainly tells us the _____ of the earth and the _____ of life on it. 8. The main idea of Reading1.Ex.1 on P27 theoryoriginearthimportanceplantsanimalshumansinfluence / effectformationdevelopment Detailed reading This text can mainly divided into two stages Stage 1 : The development of the earth Stage 2 : The development of life (para 1—3)(para 4—5)Stage 1: The development of the earth(1) After the Big Bang, what was the earth like? a cloud of dust a solid globe exploded with fire and rock produced water vapour and gases(2) What happened next?(3) What did the water vapour and gases form?the earth’s atmosphere Water appeared(4) What appeared as the earth cooled down?water is important for the beginning of life on the earth. Why is water so important for the beginning of life? Because water allowed the earth to dissolve harmful gases into oceans and seas.？Stage2 The development of life small plants appears in water 1.What life developed after wa ... ...