仁爱版九年级Unit 4 Amazing Science Topic 3 What do you know about Mars？Section B 教学设计.doc

仁爱版九年级Unit 4 Amazing Science Topic 3 What do you know about Mars？Section B 教学设计The main activity is 1a. 本课重点活动是1a。. Teaching aims and demands 教学目标1. Learn a new words:storm2. Learn some useful sentences: (1) Its diameter is 53% as wide as that of the earth.(2) It has been two days since we landed on Mars.(3) It is six weeks since we had a proper shower.3. Learn something more about Mars. Teaching aids 教具火星和罗马战神的图片/录音机/幻灯片/小黑板. Five-finger Teaching Plan 五指教学方案Step 1 Review 第一步 复习(时间:3分钟)师生共同谈论理想，并探讨火星等太空知识，导入新课。T: Morning, boys and girls!Ss: Good morning, sir/madam!T: What are you going to be when you grow up, S1?S1: Id like to be a teacher.T: Good job! What about you, S2?S2: I want to be an astronaut. I can travel to space by spaceship and discover something new about space.T: What a great dream! Our country has launched three manned spaceships. In 2007, we sent up our countrys first lunar probe. In the future, the astronauts from China will fly to Mars to explore it. They will discover something new about it. Do you know anything about Mars?Ss: No.T: OK, lets learn it from Section C.Step 2 Presentation 第二步 呈现(时间:15分钟)利用图片，导入生词学习，然后设置听力问题，提高学生的听力，最后，让学生研读1a，引导学生发现文中疑难点并互相讨论解决，教师做补充讲解。1. (出示火星及罗马战神的图片，简单介绍火星，呈现部分生词。)T: (指着火星图片。) This is a picture of Mars. It is the fourth planet from the sun in thesolarsystem. It is named after Mars, theRomangod of war. It is much smaller than the earth. Itsdiameteris 53% of the earths.(板书并要求学生理解solar，了解Roman, diameter。)solarRomandiameterT: During spring and summer, strongstormscan cover the whole surface of Mars. Thegravityon its surface is about 40% as strong as it is on earth.(板书并要求学生掌握storm，了解gravity。)stormgravityT: Do you want to know something more about Mars?Ss: Yes.T: OK, please listen to 1a to grasp the main idea of the text.2. (设置听力任务，让学生带着问题听1a录音，提高学生的听力。)(用幻灯片出示听力任务。)(1) What does Mars look like?(2) How far is Mars from the sun?(3) Whats the temperature on Mars?(核对答案。)3. (让学生精读1a，找出文中的疑难点，提高学生的阅读能力。)T: Boys and girls, please read 1a carefully. Find out the difficulties and important expressions.(板书学生提出的疑难点，先让学生互相讨论解决，之后教师分析并讲解。)Its reported that.At a distance ofStep 3 Consolidation 第三步 巩固(时间:10分钟)通过复述及完成短文填空的方式，巩固1a。1. (让学生再读1a，完成1b。) T: Read 1a again and finish 1b。 (核对答案。)2. (让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 words. You say sentences together, OK?Ss: OK.(板书关键词及短语。)Mars, fourth, named, diameter, a distance of, tell, because, bright red, ball, storms, gravity, temperature, oxygen, eight months, closest, searching forT: Mars and fourth.Ss: Mars is the fourth planet from the sun in our solar system.T: Named.Ss: It is named after Mars, the Roman god of war.3. (出示幻灯片，完成对火星的介绍，巩固1a内容。最后核对答案。)Mars, theplanet of the solar system, goes around the sun at aof about 228 million kilometers. Itsis 53% as wide as that of the earth. It looks like aandball. Its very beautiful. But duringand, strongcan cover the wholeof Mars. The gravity on the surface of it is aboutasas it is on earth.Step 4 Practice 第四步 练习(时间:12分钟)小组活动。根据1c的问题，展开讨论，组成对话，然后导入并学习2。1. (两人一组讨论1c中的问题，并安排两三组学生汇报。培养学生自主学习和创新能力。)T: We learned a lot from 1a about Mars just now. Please discuss the following questions with your partner. Then make conversations in pairs. After that Ill ask two or three pairs to report in front of the class.(三分钟后，让部分学生进行对话。)T: Boys and girls, have you finished your discussion? S1and S2, please!S1: Does Mars have a good climate for plants?S2: Of course not. Thats impossible.S1: Why?S2: Because the temperature on Mars is between -138and 28.S1: Oh, I see. Is Mars a useful place to dry fruit?S2: No, I dont think so.S1: Is Mars a good place for human beings to live?S2: No, because it is too cold for people to live on.S1: The last question. Is Mars a comfortable place for heavy people?S2: I dont think so. Although the heavy people will be lighter on Mars, its still not a comfortable place for them to live. Do you agree with me?S1: Yes, I think so.(再让一组同学讨论，教师点评这两组同学的表现，并予以鼓励。)T: OK. Both of the two pairs are excellent.2. (让学生听2的录音，然后回答问题。)T: In dialog 1a, Kangkang wants to be an astronaut when he grows up. He wants to do some research in space. Here is an e-mail from Mars. Lets listen to the tape, then answer the following questions on the small blackboard:(出示小黑板。)(1) Who is this e-mail from and to?(2) How long did it take them to get there?(3) Did everything go well during the journey?(学生听完后，师生一起核对答案。)3. (再听2录音，完成2。)T: Boys and girls, lets listen again and fill in the blanks in 2.(学生做完后，核对答案。)(让学生大声朗读课文2，加深对文章的理解。)T: Please read the completed e-mail loudly. In addition, pick out the difficult points.(板书并要求学生理解。)limit(板书并解释。)It has been two days since we landed on Mars.It is six weeks since we had a proper shower.(教师讲解这两种句型的用法，要求学生理解并模仿造句。)T: Now please make sentences according to the sentences on the blackboard. Who would like to make it first?S3: It has been two years since we learned English.S4: It has been six months since we planted the trees around our school.S5: It is ten years since I came here.S6: It is three years since my uncle went to America.Step 5 Project 第五步 综合探究活动(时间:5分钟)通过设计火星上的生活区，对1a的内容进行拓展应用，写一篇作文。完成3。1. (设计火星上的生活区。以图画的形式展示出来。)T: Boys and girls, if we can live on Mars, can you design a place where we live? Dont forget to add schools, shops, gardens, etc.You can discuss with your partner and arrange everything well, then you can exchange the pictures.2. Homework:Suppose you are an astronaut and have just come back from Mars. Please write a report about the living conditions in the spaceship and the