陕西省西安交大阳光中学高中英语 Unit 4 Astronomy the science of the stars Words and reading 导学案（教师版）新人教版必修 3第 课时课题名称时间第 周 星期课型Words and reading主备课人 目标1. Develop our reading ability and learn to use some reading strategies such as guessing, key words, skimming, scanning and so on.2. learn about the development of the astronomy in China.重点Develop students’ reading skills by reading.二次备课难点Learn different reading skills for different reading purposes.自主学习Task 1：Looking and discussing1. Look at the pictures and name the eight planets in our solar system。 2. The origin of life on earth is a question that interests astronomers. What do you know about it?3. Read the titles and look at the pictures. Predict what the reading will be about.Task 2：Asking and answering1. Predict what is going to be about by looking at the pictures and the title.Do Ex2 on Page 25问题生成记录： 精讲互动Task 1: Skimming to get general ideas 1 The passage is about ______ 2 Ask Ss to wor k in pairs and discuss the questions of Ex1 on P27. And then let them check the answers in pairs.Task 2: Careful reading (1) Answer the questions:1.When did the “Big Bang” happen? 2.What form was the earth the “Big Bang”? 3.What made up the earth’s atmosphere after the earth exploded? 4.How did water come into being on the earth? 5.What was important to the development of fish? 6.What made possible the rise of mammals on the earth? 1 7.Why are mammals different from all life forms in the past? （2）Fill in the chart about the order of development of life. 达标训练作业反思板书设计21 small plants in water23 green plants on land4insects(on land)56 forests7 8 93
