仁爱英语八年级上册U4T2SA教学.ppt

Unit 4 Our WorldUnit 4 Our World Topic Topic 2 2 Im not sure Im not sure if if there are there are UFOs.UFOs. Section ASection A 福州市第四十中学 林锌 Whats this? Its a _. robot What did he do? He was a _.scientist A: What can robots do for us? B: They can save people in dangerrepair machineslift parts of trucks carry heavy thingsmend roadscatch fishes Robots can take the place of humans to do hard or boring work in some situations. Are you sure? Where did Kangkang go last weekend? When did scientists invent the first robot? (when did the first robot appear?) What can robots do for us? 1a Look, listen and say When did scientists invent the first robot? (when did the first robot appear?) Scientists invented the first robot in 1921. Where did Kangkang go last weekend? He went to the Science Center last week. Key points But before that, something like a robot appeared. 类似某物的 东西 e.g. 这吃起来有点象甜瓜。 It tastes something like melon. “take the place of” VS “instead of” Robots can take the place of humans to do hard or boring work in some situations. = They can also do lots of dangerous work instead of humans. = Key points They can also take the place of humans to do lots of dangerous work. Robots can do hard or boring work in some situations instead of humans. Im sure robots can do some work faster and better than humans. Are you sure? Yes, Im sure. / Yes, quite sure. No, Im not sure. Key points The advantages of robots: 1. 2. 3.Robots can do some work faster and better than humans. Robots can take the place of humans to do hard or boring work in some situations. Robots can also do lots of dangerous work instead of humans. Read 1a again and write down the advantages of robots. 2 Work alone(录音1) 16 325 lift parts of trucks 4 Discuss the advantages and disadvantages of robots. Then complete the table. You can add your own opinions. Group work 1. Robots will make humans lose their jobs. 2. Robots can do some work faster and better than humans. 3. Robots can do many kinds of jobs. 4. Robots can do more difficult work than humans. 5. Robots will make humans lazy. 6. Robots can do dangerous work. 7. Robots can work without pay. AdvantageDisadvantage 2. Robots can do some work faster and better than humans. 3. Robots can do many kinds of jobs. 4. Robots can do more difficult work than humans. 6. Robots can do dangerous work. 7. Robots can work without pay. 1.Robots will make humans lose their jobs. 5. Robots will make humans lazy. Make a similar conversation after the example, using the information above. Example: A: Are you sure? B: Yes, Im sure. / No, Im not sure. A: Is it good or bad for us? B: A: Do you think you will have a robot in 20 years? B: Yes, Im sure. / No, Im not sure. A: What will it do if you have one? B: It will Group work “in + 一段时间”表示“之后”，用于一般将来时。 Discuss in groups. Imagine the robots in the future. Discuss what kind of functions and shapes we need the robots to have except those we already have nowadays. Translate the sentences: 1.机器人能为我们做什么? 2.你确定吗? Make sentences with the following phrases: be sure of/about; be sure that; be sure to do sth. Do some exercises. What can robots do for us? Are you sure? 1. There must be UFOs. We are sure of/about that. 2. We are sure that we can win the game next time. 3. We are sure to win the game next time. “take the place of” VS “instead of” Robots can take the place of humans to do hard or boring work in some situations. Im sure robots can do some work faster and better than humans. Are you sure?