约7980字。

　　Topic 2  I’m not sure if there are UFOs.
　　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 new words and a phrase:
　　robot, scientist, appear, take the place of, situation, repair, machine, truck, mend
　　2. Learn some useful sentences:
　　(1)What can robots do for us?
　　(2)Robots can take the place of humans to do hard or boring work in some situations.
　　(3)They can also do lots of dangerous work instead of humans.
　　3. Learn how to express certainty and uncertainty:
　　(1)I’m sure robots can do some work faster and better than humans.
　　(2)—Are you sure?
　　—Yes, quite sure.
　　(3)—Do you thin will have a robot in 20 years?
　　—Yes, I’m sure. / No, I’m not sure.
　　4. Talt modern science and technology.
　　Ⅱ. Teaching aids 教具
　　录音机/玩具/小黑板/图片
　　Ⅲ. Five-finger Teaching Plan 五指教学方案
　　Step 1  Review 第一步  复习(时间:8分钟)
　　教师将一个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和最高级，引出生词及be sure的用法，导入新课。
　　1. (师生对话，边复习边引出生词。教师出示玩具机器人和小汽车。)
　　T: Boys and girls, look, what are these?
　　Ss: They are toys. En.12999.com
　　T: Which one do you like better, the robot or the car? A robot is a machine that helps people do some work.
　　(板书并要求学生掌握。)
　　robot, machine
　　Ss: The robot.
　　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: Yes, I think so. Scientists invented many useful inventions.
　　(教师板书并要求学生掌握。)
　　scientist
　　T: Newton is a scientist. Edison is a famous scientist, too. Some students in our class want to be scientists. Right?
　　S3: Yes, I’m sure.(引导学生用I’m sure来回答。)
　　2. (教师讲解I’m sure …句型。初步让学生理解be sure是表示肯定的一种说法。)
　　T: Then, when did the first robot appear?
　　(板书并要求学生掌握。)
　　appear
　　S4: I don’t know .
　　T: Oh, it was invented in 1921. Many students are interested in robots. Could you tell me what robots can do for us?
　　(让学生讨论，汇报讨论结果。)