Unit 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 1Task 1 Individual 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.① What was there on the earth before life could begin?② Why do scientists think there has never been life on the moon?③ Why did the plants grow before the animals came?④ Why did animals, for example, shellfish and all sorts of fish, first appear in the oceans and seas?⑤ What helped animals to move from the water to the land?⑥ So what were needed before animals could develop?⑦ Why is it wrong to show films with dinosaurs and people together?⑧ 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 【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）2___________ on land insects and amphibians _____________ reptiles + dinosaurs oxygen mammals human 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.① How life began on earth is one of the biggest p______ that scientists found hard to solve.② Everyone took part in the discussion. There was a lively a_________ in the classroom.③ There was a v______ quarrel going on outside. Nobody could fall asleep.④ Lily was quite mean. U_____ Lily, Lucy was quite generous.⑤ An unbalanced diet is h_______ to our health.⑥ We should combine t______ with practice.⑦ The population of the world is m________ all the time.⑧ Dinosaurs once e______ on the earth. Now, they have died out.⑨ Grammar and vocabulary are quite f ________ to English study.⑩ 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）
