UNIT 4 TOPIC 2 Section C 教案.doc

Unit 4 Amazing ScienceTopic 2 Section C教案Teaching aims and demands 1. Learn the new word and phrase: storm, base on2. Review the passive voice. 3. Learn something more about Mars. Teaching aids录音机/音乐磁带/地理课堂教学挂图之八大行星/听力任务幻灯片/多媒体Teaching Plan Step 1 Review 利用八大行星图,复习上节课内容。T: Boys and girls, look at the picture. Lets say something about it. Can the moon be visited?Ss: Yes, it can. T: Yes, men have already been there. Can the earth be visited?Ss: Yes. (全体笑)We live on the earth. T: Boys and girls ask and answer questions in pairs like this. OK?Ss: Yes. T: Now Im going to choose pairs to ask and answer. T: There is going to be an international journey to explore Mars one day. (指着挂图上的火星说。)T: Mars is at a distance of about 228 million kilometers. Step 2 Presentation 1.让学生听录音1a，并设置听力任务，幻灯片出示听力任务。T: Boys and girls, lets listen to the tape. And answer the questions on the screen.A. What does it look like?B. Can people live there easily? 听完后，让学生回答问题，教师核对答案，有必要可再放一遍。A. It looks like a red and orange ball. B. No, they cant. 2.让学生读1a, 找出文中的疑难和关键词，并画出来。培养学生自主学习的能力。T: Boys and girls, please read 1a. Find out the difficulties and important words and expressions.3.教师讲解所画出的疑难点，学生找出关键词。T: Have you finished already? S1, please. S1: It is reported that , take part in, look like S2: Go around, as big as T: OK. You did very well. Step 3 Consolidation 学生根据关键词复述1a，加深理解，提高表达能力。T: Please retell the passage according to the key words on the blackboard. I will say the key word, you make sentences together, OK?Ss: OK. T: ReportedSs: It was reported that China plans to take part in an international flight to explore Mars. T: Good. Look like.Ss: What does Mars look like?T: Goes around. Ss: Mars goes around the sun at a distance of about 228 million kilometers. T: As big as.Ss: It is a quarter as big as the earth. T: A red and orange ball.Ss: Mars looks like a red and orange ball. T: Great, next. The gravity. Ss: The gravity on the surface of Mars is about one third as strong as it is on the earth. T: The temperature. Ss: The temperature on Mars is between -140 and 20. T: Eight months. Ss: It takes a spaceship from earth about eight months to reach Mars when the two planets are closest to each other. T: Search for. Ss: Scientists are searching for more information about Mars each year. T: Excellent. You did a good job. Step 4 Homework1. 写出下列动词的过去式、过去分词。take land fly become build make send stay control interview feel2.翻译下列句子。Fruits can be pla