Unit4_Astronomy_the_science_of_the_stars-reading.ppt

Do you know each religion or culture has its own ideas about the beginning of the 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 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. What was there on the earth before life could begin? Water vapour, carbon dioxide, oxygen, nitrogen and other gases. 2. Why do scientists think there has never been life on the moon? Because there is no water on the moon. 3. Why did animals first appear in the seas? Because water allowed the earth to dissolve harmful gases into the oceans and seas. 4. Why did green plants help life to develop? Because green plants can take carbon dioxide from the atmosphere and fill the air with oxygen. 5. Why were mammals different from other animals? They were different because they produced their young from within their bodies. 3 Why was it necessary for plants to grow before animals?A Animals needed plants to protect them from the sun B Plants provided oxygen for animals to breatheC Animals could hide from hunters in forests.D It was easier for plants to grow.4 What problem is caused by human being?A They exist everywhere on the earthB They cause global warming C They find new methods of growing cropsD They enjoy hunting and fishing * * 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 o