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

1、 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 u

2、p: 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 o

3、wn 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

4、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

5、 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 devel

6、opment of humans The development of life Task 3 Careful reading 1.Stage 1: The development of the earth(para13) The Big Bang a cloud of_ a violent_exploded with_produced water vapour and gases_（cool down）_ appearedlife begin 2. Stage 2: The development of life in water First: extremely small plantse

7、arly_ and all sorts of_ 3.Stage 3: The development of life on land Next: _ on landsfollowed by _ (some insects and other amphibians) later green plants grew into _ appeared for the first timesome huge animals called_developedWhen dinosaurs disappeared, _ became more important 4. Stage 4: The develop

8、ment of humans Finally: small clever animals_came into being and spread all over the world. Task 4 Summary How did life begin on the earth? Big Bang stars _other bodies a cloud of _ a solid _ carbon nitrogen water vapour other_ the earths_ Water: _ to the development of life extremely small _ on the

9、 surface of the water early _ and all sorts of fish Green plants on land amphibiansinsects _ _ huge animals(dinosaurs) the rise of_ human beings Period 3 Discussion: As a student, what little things can we do for the earth? to prevent the earth from getting hotter and hotter to slow down the problem getting worse Period 4 Assignment (homework) :