约8930字。

      湘教版北京仁爱英语八年级上学期　　
      Unit 4 Our world.
　　Topic 2 I am sure there are no UFOs.
　　同步教案
　　Section  A
　　The main activities are 1a and 3. 本课重点活动是1a 和 3。
　　Ⅰ. Teaching aims and demands教学目标
　　1. Learn some useful words and expressions:
　　robot, scientist, appear, take the place of, situation, in danger,  repair, machine, mend, lazy
　　2. Learn Object Clauses: be sure
　　(1)I’m sure robots can do some work faster and better than humans.
　　(2)Are you sure?
　　(3)Yes, I’m sure/quite sure. / No，I’m not sure.
　　(4)I’m sure robots will mamans lose their jobs.
　　(5)I’m sure robots can do dangerous work.
　　(6)Do you thin will have a robot in 20 years?
　　3. Talking about popular science and modern technology.
　　4. Expressing certainty and uncertainty.
　　Ⅱ. Teaching aids教具
　　录音机/图片/多媒体
　　Ⅲ. Five-finger Teaching Plan 五指教学方案
　　Step 1 Review 第一步 复 习（时间：10分钟）
　　(教师拿一个带音乐、会跳舞的玩具机器人，和一个玩具汽车进行比较，复习形容词的比较级并逐渐导入新课。)
　　T: Boys and girls, look, what are these?
　　Ss: They are toys.
　　T: Which one do you like better, the robot or the car?
　　(教师说时拿着机器人演示，让他们理解robot的意思同时在黑板上写robot，并领学生读。)
　　(板书)
　　Ss: The robot.
　　T: Very good. OK, read after me.
　　(领读后继续提问。)
　　T: Why do you think so?
　　S1: Because I think the robot is more interesting than the car.
　　S2: Yes. I agree. I think it is the most interesting of all the toys.
　　T: I’m quite sure. In fact robots are machines. （教师边说边在黑板上写machine，注意在此处用be sure,初步让学生理解be sure是表示肯定的一种说法。）
　　There are many more machines like robots. Are you sure?
　　(板书)
　　S3: Yes, I’m sure.
　　(引导学生用I’m sure来回答。)
　　T: Then, where did the first robot appear?
　　(教师边说边写appear在黑板上，用invent提示它的含意。并举例让学生领会该词意思。)
　　(板书)
　　That is to say when the scientists invented the first robot.
　　T: In the past, we don’t have a computer. But now, we have. So we say computer appeared.
　　While I was walking down the stairs, I saw a mouse. We can also say a mouse appeared while I
　　was walking down the stairs. Do you understand the meaning of this word?
　　(教师指appear。)
　　Ss: Yes, “出现”.
　　T: Where did the first robot appear?
　　S4: I don’t know.
　　S5: Me, either.
　　T: It doesn’t matter, you can go to the Science Center to find out the answer.