高一下学期英语人教必修3Unit4—Warming—up—and—Reading课件

How life began on the earth Unit 4 Warming up In Chinese culture… ____________ separates the sky 　　　　　　　　　 from the earth. Pangu 盘古 sky earth Three different ideas _______ made human.Nvwa Bible 圣经 _________ created the world in 7 days.God Read the passage quickly and analysis its structure.write down the main idea of each paragraph. Fast reading Paragraph 1: M a i n b o d y Paragraph 2: Paragraph 3: Paragraph 4: Paragraph 5: The formation of the earth The importance of water The development of plants and animals on the earth The arrival of humans and their impact on the earth Put the order of development of life into a timeline. Use the reading passage to help you. 1 Insects and amphibians appeared. 2 Dinosaurs appeared. 3 The earth became a solid ball. 4 Small plants grew on the water. 5 Reptiles appeared. 6 Plants began to grow on dry land. Answer: 10 7 3 8 4 9 6 1 5 2 12 11 What is the widely accepted theory about how life began? The universe began with a “Big Bang” that threw matter in all directions. Careful reading: Bing Bang atoms Stars and other bodies fo rm • At first, after the “Big Bang”, the earth was a _________________; then between 4.5 and 3.8 million years ago, its shape became ________________. Next, the earth began to ________ violently. At last, the ____________ began to form and _________ began to _______. cloud of dust a solid globe explode atmosphere water appear Paragraph 3 • Which of the following is true? A There is also water on Mars today. B At first the importance of water was very obvious C Water is based on the development of life D The water in the oceans and seas can break down harmful things Paragraph 4 1. Reptiles were animals live on land as well as in the water. 2. Fish appeared before small water plants. 3. Both dinosaurs and reptiles feed young on milk. 4. The reason for the disappearance of dinosaurs is unknown to us. 5. Mammals became more and more after dinosaurs appears. Paragraph 5 1.What does “some small, clever animals” mean? 2.What problem is caused by them? 3.Will life will continue developing on the earth for millions of years to come? [ _________ ] summary: the formation of the earth how life begin on the earth Big Bang stars [ ___________ ] explode with fire and rock atmosphere a solid globe a cloud of dust produce: carbon dioxide,nitrogen, water vapour.... water small plants in water shellfish and fish plants grown on land insects and amphibians mammals reptiles dinosaurs Man had evolved from apes（猿猴）. We are making the world better. We are making the world worse. It prevents heat from escaping from the earth into space. The earth is becoming hotter and hotter! solar energy plant trees recycle rubbish prevent polution save water purify air Whether life will continue on the earth depends on human beings. Thank you