1、1Unit 4 Astronomy the science of the stars Reading学案【要达成的目标】1.The students will be able to understand the passage better.2.The students will be able to have a preliminary understanding of the new words.3.The students will be able to develop their macro-skills.【“教”与“学”过程】本堂课使用的电教手段 Task 1 Individual
2、Work Before Class (10 minutes)Activity (1) Read the passage again and finish Ex2 on page 27.Task 2 Pair Work In Class (15 minutes)Activity (1) Discuss the following questions in pairs. What was there on the earth before life could begin? Why do scientists think there has never been life on the moon?
3、 Why did the plants grow before the animals came? Why did animals, for example, shellfish and all sorts of fish, first appear in the oceans and seas? What helped animals to move from the water to the land? So what were needed before animals could develop? Why is it wrong to show films with dinosaurs
4、 and people together? What problem is caused by human beings?Task 3 Group Work In Class (15 minutes)Activity (1) Fill in the blanks according to the passage.water + atmosphere + acids _in the oceans and seas+oxygen _ in the oceans and seas 2【课后反思】（教师写成败得失和改进措施，学生写学习体会和存在的问题）_ on land insects and amp
5、hibians_ reptiles+ dinosaursoxygen mammalshuman beings?Activity (2) Report your answer to ? and your reasons.Activity(3) Retell the passage in your own words according to the diagram above.Task 4 Individual Work In Class (10 minutes )Activity (1) Fill in the blanks with a proper word in this passage
6、. How life began on earth is one of the biggest p_ that scientists found hard to solve. Everyone took part in the discussion. There was a lively a_ in the classroom. There was a v_ quarrel going on outside. Nobody could fall asleep. Lily was quite mean. U_ Lily, Lucy was quite generous. An unbalance
7、d diet is h_ to our health. We should combine t_ with practice. The population of the world is m_ all the time. Dinosaurs once e_ on the earth. Now, they have died out. Grammar and vocabulary are quite f _ to English study. Do you think the education s_ in China is good enough?Homework Activity (1) Practice reading the passage aloud by yourself.Activity (2) Finish the task before class in the next learning guide【课后反思】（教师写成败得失和改进措施，学生写学习体会和存在的问题）
