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Astronomy: the science of the stars,Where do we come from? Or we can say: Who are our ancestors?,Pre-reading,Big Bang,A solid ball,Atmosphere,The earth,It was full of water.,Original cells.,The cells in the water began to separate.,water,Plants in the water,Shellfish and fish,Plants on land,Insects and amphibians,Reptiles,Dinosaurs,Mammals,Man had evolved from apes.,Do you know each religion or culture has its own ideas about the beginning of the universe?,Pangu separates the sky from the earth,Other legends about the beginning of universe,Day 1: God spoke and separated light from darkness creating Day and Night Day 2: God spoke and separated the water creating sky and ocean Day 3: God spoke and created dry land,上帝创世说：,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,India Brahma(婆罗门) is the god first represented in the Hindu Triad. He is the creator of the universe and all living beings are said to have evolved from him.,1.How did water come into being on the earth ? 2. Why water is important for the beginning of life? 3. Why were mammals different from other animals?,Fast reading,How did water come into being on the earth ? The earth exploded loudly with fire and rock. After the earth cooled down, water vapour turned into water.,2. Why water is important for the beginning of life? Because water allowed the earth to dissolve harmful gases into oceans and seas.,3. Why were mammals different from other animals? They were different because they produced their young from within their bodies.,Read paragraph 2 to 4 carefully and finish the following form.,How life began on the earth,1. small plants in water,2. shellfish and all sorts of fish,3. green plants on land,4. insects(on land) 5. amphibians (on land and in water),6. forests,7. reptiles(on land) 8. dinosaurs(on land) 9. mammals(on land),10. small clever animals with hands and feet,11. human,1 Why is it wrong in films and stories to show dinosaurs and people together?,2 Why do you think that humans are the cleverest animals on the earth?,Because dinosaurs died out long before human beings developed on the earth.,We are the cleverest animals because we have large brains than any other creatures on the earth so far.,Check the answers on P26-27,B,C,B,B,1.,3.,Group work,What problems have been caused by humans to the earth? How to protect the earth and make it a better place to live on?,Homework 听写astronomy-dioxide 2. 书上P28 第、大题 1. solid; violent; astronomy; generally speaking; preventfrom; planet; development; explode; surface, method,同学们,来学校和回家的路上要注意安全,同学们,来学校和回家的路上要注意安全,
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