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一、导入环节（2分钟）
（一）导入新课，板书课题
导入语:Good morning, class. How are you? Today, we will learn Module 3 Unit 2. And write the title on the blackboard.
（二）出示学习目标
过渡语:Let’s read the learning goals together.
1.我能掌握本模块的13个重点单词、9个短语及句子。
2.我能够读懂以太空为主题的简单文章并能识别细节，做出正误判断。
3.培养对天文知识的兴趣和对未知事物的探索精神。
过渡语:Are you clear? Let’s go on.
二、先学环节（15分钟）
（一）出示自学指导
过渡语:First look at the guides carefully and then finish the tasks step by step.
1. Scan the passage and finish Activity 2.
2. Read the passage carefully and finish Activity 3.
3. Read the passage carefully and answer the questions.
4. Read the passage again and find out the important phrases.
（二）自学检测反馈
1. Read the passage and choose the best title for it. (Activity 2)
2. Read the passage carefully and check the true sentences. (Activity 3)
3. Read the passage carefully and answer the questions.
(1) Read P1- 2 loudly, and chooses the best answers.
①How long has life been on the earth? ( )
A. Hundreds of years. B. Millions of years. C. Hundreds of millions of years.
②How many planets does the sun have? ( )
a. Seven b. Eight c. Nine
(2) Read P2-3 loudly, and compare.
solar system sun universe galaxy
(3) Read P4-5 loudly, and check the true sentences.
① Scientist haven’t sent spaceships to travel outside the solar system . ( )
② To the universe, scientists have many questions without answers. ( )