浙江省杭州市塘栖中学高中英语必修三：unit4astronomywarmingupreading教学课件.ppt

Unit 4 Astronomy: the science of the stars;The Solar system ;土星Saturn [s?t?(:)n] ;Each religion and culture has its own ideas about how life began on earth. What do you know?; ; Pangu separated the earth and sky with an ax. After he died, his breath became wind and cloud; his voice became thunder and his left eye sun and right one moon; arms and legs became edges and mountains; blood became rivers and tendon (筋脉) became roads; muscles became fields and hair became forests; teeth and bones became metals, pearls and jade; sweat became rain. ;Other legends about the beginning of universe;The Biblical Account;Day 4: God spoke and created the sun, moon and stars. Day 5: God spoke and created living creatures in the air and sea. Day 6: God spoke and created the land animals and man. Day 7: God rested and blessed this day calling it Holy. ;Earth;Useful expressions: according to a widely accepted theory begin with in all direction a cloud of dust settle into a solid globe in time cool down encourage the later development of… live on land as well as in the water;for the first time lay eggs the age of give birth to; Who knows how life began on the earth exactly? A. Scientists. B. Astronomers. C. No one. D. Aliens (外星人). 2. What does “small clever animals” refer to? A. Insects. B. Reptiles. C. Dinosaurs. D. Humans. 3. How many stages are there during the evolution of life on the earth? A. three B. four C. five D. six;The Big Bang ;Detailed Reading;Stage 1: The development of the earth;exploded with fire and rock;(3) What did the water vapour and gases form?;Water appeared which was to be fundamental to the development of life.;(5) What did the water form?;1. Big Bang (several billion years ago);;The development of life;extremely small plants in water; green plants on land;(3) What life developed next?; reptiles on land;mammals on land;small clever animals with h