高中英语unit4astronomythescienceofthestars公开课课件新人教版必修

人教版高一英语必修3 Unit 4 Astronomy: the science of the stars 1. plants 2.Insects 3.Reptiles 4.shellfish 5.Fish 6. amphibians 7.Mammals Human beings 八大行星 你知道吗？ (水星） （金星） （火星）(木星) (天王星） (土星) (海王星） （地球） SunVenus Mercury Mars Jupiter Saturn Earth Pluto Neptune Uranus My Very Excellent Mother Just Sent Us Nine Pizzas How to remember the order(顺序) of the eight planets . Earth Jupiter MarsMercury Neptune SaturnUranus Venus 你记住了吗？ Do you know how our life began on the earth? Do you know any ancient idea about the beginning of the earth? Pangu separates the sky from the earth Nvwa makes human beings Religious God created the world in seven days. Day 1: God created Day and Night. Day 2: God created sky. Day 3: God created dry land the earth, and seas. Day 4:God created the sun, the moon and stars. Day 5: God created living things in the air and sea. Day 6: God created the land animals and the first man. Day 7: God rested and called this day Holy(圣日). Day 1: God created Day and Night. Day 2: God created sky. Day 3: God created dry landthe earth, and seas. Day 4:God created tow great lights(the sun, the moon) and stars. Day 5: God created living things in the air and sea. Day 6: God created the land animals and the first man. Day 7: God rested and called this day Holy. Unit 4 How Life Began on the Earth Skim the passage and match the main idea with each paragraph. Para. 1 A.The formation(形成) of the earth. Para. 2 B.The importance of water for life. Para. 3 C.A widely accepted theory the Big Bang Para. 4 D. The arrival of humans and their impact(影响) on the earth. Para. 5 E.The development of plants and animals on the earth. Detailed Reading 1.The development of the earth The Big BangThe Big Bang (1) After the Big Bang, what happened? a cloud of dust a violent solid globe exploded with fire and rock produced carbon, nitrogen ,water vapour& gases Made the earths atmosphere Water appeared (4) What appeared on the earth then? (5) What did the water form? oceans and seas appeared 1. Big Bang 2. a cloud of dust 3. A solid globe 4. exploded with fire and rock 5. produce the water vapour, carbon dioxide-atmosphere How did the earth come into being? 6. cooled down 7. water appeared 8. Dissolved harmful gases &acid 水 Water is fundamental to the development of life. 2.The development of life small plants First early shellfish Stage 1: The development of life in water all sorts of fish green plants on land insects on land Next amphibians on land and in the water Green plants grew into forests Later reptiles on land dinosaurs on land (1) What life developed after forests appeared? After that mammals on land (2) What life developed after dinosaurs? small clever animals (3) What life developed after mammals? Finally The Big Bang water Small plants insects and amphibians land on Reptiles on landmammals advanced mammals dinosaurs 1. Small plants in water2 ._ and all sorts of fish 3. Green _ on land 4. _ (on land) 5. Amphibians (on land and in _) 6. Plants grew into _. 8. _ (on land) 9. _ (on land) Have a try: Talking about the development of life 7. _ (on land) 10. _ (small clever animals on land) Shellfish Insects water plants forests Reptiles Dinosaurs Mammals Human beings After the “Big Bang”, the earth was just a cloud of dust. It _ loudly with fire and rock, which were _to produce the water vapour, _ and other gases. Then small plants grew. They _and filled the oceans and seas with oxygen. Many millions of years later， the first green plants began to _on land. When the plants grew into forests, reptiles appeared for the first time. They produced young generally by _eggs. exploded in time carbon dioxide multiplied appear laying When dinosaurs disappeared, mammals became more i_. Now small clever animals with_ appeared and _ all over the world. As time went by, they covered the earth and they are putting too much carbon dioxide into the_, which _heat_ the earth into space. Whether life will continue on earth for millions of years to come will _whether this problem can be solved. mportant hands and feet spread atmosphere prevents from depend on