约1970字。

　　仁爱版九年级上Unit 4
　　Topic 2  When was it invented?
　　Section C
　　The main activity is 1a. 本课重点活动是1a。
　　Ⅰ. Teaching aims and demands 教学目标
　　1. Learn some new words and phrases:
　　servant, for certain, housework, make a contribution to
　　2. 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.
　　Ⅱ. Teaching aids 教具
　　录音机/图片/幻灯片
　　Ⅲ. Five-finger Teaching Plan
　　Step 1  Review
　　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 I’ll 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。)
　　Invention Inventor Year
　　car Karl Benz 1885
　　radio Guglielmo Marconi 1895
　　light bulb Thomas Edison 1879
　　T: 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! I’ll ask two students to ask and answer questions about the radio.
　　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, let’s talt more inventions.
　　Step 2  Presentation