仁爱版英语级Unit 4Amazing ScienceTopic 2When was it inventedSection C教案(8页).doc

-仁爱版英语级Unit 4 Amazing ScienceTopic 2 When was it inventedSection C教案-第 8 页仁爱版英语级Unit 4  Amazing ScienceTopic 2  When was it invented?Section C 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 some new words and phrases:servant, for certain, housework, make a contribution to2. Learn some useful sentences:  (1) No one knows for certain, but most people think that robots will be part of our lives.  (2) In short, this robot is very useful to us.3. Discuss the advantages and disadvantages of robots. Teaching aids 教具录音机/图片/幻灯片. Five-finger Teaching Plan 五指教学方案Step 1  Review 第一步  复习(时间:8分钟)检查作业，然后以师生互动形式，复习一般过去时的被动语态。培养学生热爱科学的精神。1. (检查上节课的作业，让学生汇报自己的发明成果。)T: Now Ill check up the homework of Section B and choose some students to report their results.2. (出示幻灯片，让学生根据幻灯片上的图表，用过去时的被动语态做对话练习。)InventionInventorYearcarKarl Benz1885radioGuglielmo Marconi1895light bulbThomas Edison1879T:  Boys and girls, we have learned many inventions during the last period. Look at the table and make dialogs like this:A:  When was the car invented?B:  It was invented in 1885.A:  Who was the car invented by?B:  It was invented by Karl Benz.T:  OK! Who can work in pairs? You two, please!S1: When was the radio invented?S2: It was invented in 1895.S1: Who was the radio invented by?S2: It was invented by Guglielmo Marconi.(再找两组学生做类似对话。)T: Well done. You learned a lot. Now, lets talk about more inventions.Step 2  Presentation 第二步  呈现(时间:10分钟)以师生互动等形式，呈现本课新知识。通过让学生听录音并找出关键词，培养学生的听力及阅读理解能力。1. (师生互动，导入新课。)T:  We have learned many inventions such as computers, digital cameras, TV sets and light bulbs. Which invention do you like best? Can you tell me?S1: Computers.S2: Cars.S3: T:  Why do you like computers best, S1?S1: Because I can learn a lot on the computers. Playing computer games is very exciting.T:  But you shouldnt spend too much time on them. It is bad for your study. Which invention would you like to own, S3?S3: Id like to own a cellphone. It can help me communicate easily.T:  Very good. Anyone else?S4: Id like to own a car. Its very convenient.T:  But Id like to own a robot. Because I always feel very tired after work and I dont feel like doing any housework.(教师板书，并要求学生掌握。)houseworkT:  So Id like a robot to help me do a lot of housework. It can cook for me. It can clean the house for me. In cold winter, it can wash clothes for me. Its dangerous for me to clean the outside of the windows. OK, let the robot do it. Ha! It behaves just like a servant.(板书，要求学生理解behave；掌握servant。)behaveservantT:  With the robots help, doctors can examine the insides of their patients bodies. It has made a contribution to humans health.(板书并要求学生理解contribution；掌握词组make a contribution to。)contributionmake a contribution toSs: Thats very interesting.T:  Yes. Study hard, and Im sure you can make a contribution to our country.(教师展示机器人图片。)T: Look! This is a robot. Will it be friendly or unfriendly to people? No one knows for certain.(板书，并要求学生掌握。)for certainT: With the development of technology, maybe robots will think and act for themselves. They will no longer want to be our servants, but our masters. Do you think it is very dangerous? Maybe there will be a war between robots and human beings.2. (播放1a录音，让学生在文中画出关键词和短语。)T: Boys and girls, weve learned something about robots. And today well learn a passage about robots. First listen to the tape carefully and find out the key words and expressions.(板书关键词和短语。)no one, most people, our lives, robots, caused, work for us, help, dangerous and difficult work, people, surprised, think and act, one scientist, warns, want to be our servants, treat, war, human beingsStep 3  Consolidation 第三步  巩固(时间:13分钟)让学生讨论1c中的问题，探讨机器人将给人类带来的利和弊，培养学生的科学探究精神。让学生根据关键词复述1a，培养学生综合运用语言的能力。1. (让学生再读1a, 分小组讨论1c中的问题。)T: Read the passage by yourselves and discuss the questions in 1c in groups.(把整个班级分成四个小组，每个小组选择并讨论其中一个问题。教师提问检查讨论结果。)T:   Group 1, which question did you talk about?G1: Question 1.T:   Do you think that robots will be part of our lives in the future?G1: Yes, we think so. They can help us do some dangerous and hard work. They work fast and they are never tired.T:   Group 2, what did you talk about?G2: We talked about Question 3. We dont think robots can think or act for themselves. Human beings created robots. So we can control them. Robots can work for human beings, and they dont complain. They cant think for themselves.T:   Maybe you are right. Now its your turn, Group 3. Which question did you choose to discuss?G3: Question 2. We dont think robots are meant to be our servants. They are important. They can do a lot of work for us. But we mustnt treat them as our servants. They should be our friends. We can talk with them.T:   Yes, I agree with you. And what do you think of the title, Group 4? Why does the title have a question mark?G4: Because the writer is not sure whether robots will be our servants in the future. (or the writer doesnt think that robots will be our servants. )2. (学生两人一组，利用黑板上的关键词，复述课文。教师鼓励并动员全员参与活动，然后请几名学生向全班复述。)T: After the discussion, you can try to retell the text in 1a according to the key words on the blackboard. Ill ask some of you to retell it in the front. Be brave and have a try, please!3. (出示幻灯片，让学生完成下面对机器人的介绍，进一步巩固对文中出现的关键词和短语的掌握。)T: Please fill in the blanks according to 1a.    So far, robots havent      us any problems. They work for us like      all the time. They help us do      and      work. People are      at the      development of robots. In a few years, perhaps robots will think and      for themselves. However,      robots can think for themselves, problems may     . Perhaps there will be a      between human beings and robots.T: Read 1a again. Check the answers.Step 4  Practice 第四步  练习(时间:8分钟)通过单词释义、听力训练等活动帮助学生更好地掌握本课所学的内容。1. (教师简单介绍解题方法，学生完成1b，师生一起核对答案。)  T: OK. Please find out and circle the words in 1a according to the meanings in 1b. Then write    them down. You can work in pairs if necessary. Then well check the answers together.2. (播放2录音，让学生完成2。)T: Lets listen to the tape, and finish 2 by yourselves. Well listen to the passage twice.(听完后，核对答案。)答案：1. greatly    2. medical             3. health4. inside     5. discovering     6. effects(为了使学生加深对所听内容的理解，可以创设一些问题让别学生回答。)Example:T: What is the X-ray machine used for?S1: It is used for examining the inside of patients bodies.T: Why should it be used properly?S2: Because it has some bad effects on our health.Step 5  Project 第五步  综合探究活动(时间:6分钟)学生通过小组合作，设计一个机器人，并写一篇有关该机器人的文章。1. (学生四人一组，设计一个机器人。并讨论3中的五个问题，然后写一篇短文。)T: Boys and girls, work in groups of four. Design a robot. Then discuss the questions in 3 together. Write a short passage about it.2. (教师提问一些学生做口头描述，对写短文可能遇到的问题进行提示，完成3。)T: Now, I will ask some of you to make a report. After that, write it down in your exercise books.3. Homework:Think it over and make a similar card for your robot.Name:_Inventor:_Year:_Use:_板书设计：When was it invented?Section Cservant        1)It has made a great contribution to humans health.houseworkfor certain    2)In short, this robot is very useful to us.