人教版高中英语必修三Unit 4 Astronomythe science of the stars教学设计.doc

Astronomy: the science of the stars Unit 4 Learning aims: Enable Ss to talk about the science of the stars, the development of life; 1. Enable Ss to learn how to talk about the beginning of life on the earth; 2.science and lead the Ss to study scientifically. Foster the Ss interests of 3. Warming up: Period 1 1. Lets appreciate some beautiful pictures and videos of the solar system.2.Talk about universe and solar system. What are the names of the eight planets that circle our sun? _____________________________________________________________________ 3.The beginning of the universe the beginning of ideas about the culture Do you know each religion or has its own universe? Please give an example if you know. a. Chinese Legends: _____________creates the world ; _______makes human beings b. In Bible, the world and the whole universe was created by the_________ c. Science: ______________, a widely accepted theory. Reading Period 2 Listen and match Task 1 Listen to the tape of the reading passage and match the main idea of each paragraph. Para 1 a. The importance of water for life Para 2 b. The development of plants and animals on the earth Para 3 c. The formation of the earth Para 4 d. The arrival of humans and their impact on the earth e. A widely accepted theory about the formation of the universe Para 5 Task 2 Scanning Work in pairs. Get familiar with the order of development of life according to the passage. The evolution of life on the earth. Stage 1: The development of the earth Stage 2: The development of life in water ↓ Stage 3: The development of life on land ↓ Stage 4: The development of humans ↓ The development of life Task 3 Careful reading 1.Stage 1: The development of the earth(para1—3) The Big Bang→ a cloud of_________→ a violent_______________→exploded with___________________→produced water vapour and gases→__