Unit 6 When was it invented教案（5课时）人教版九年级全册

Unit 6 When was it invented 单元教材分析：本单元主要谈论一些发明的历史，会描述某项发明的时间、地点、发明者、用途等，话题比较有趣，学生比较感兴趣。本单元主要让学生掌握一般过去时被动语态的句型，以及其他几种时态的被动语态结构。 Period 1 Section A 1 (1a-2d) Step1. Warming up 1.展示一些近代发明图片与近代发明的发明者，让学生们将图片与发明者相连。 T: Do you know what these inventions are S1: It’s a car. S2: It’s a telephone. S3: It’s a television. T: Do you know who these inventors are S1: Karl Benz S2: Alexander Bell S3: J. L. Baird Let Ss match the inventions and the inventors. Step2. Presentation 引导学生们学习一般过去时态的被动语态结构。 让学生们看大屏幕的如果爱和发明者的图片,并将句子改为被动语态。 如：T: Karl Benz invented the first car in 1885. The first car was invented (by Karl Benz) in 1885. Step3. Talking 1. Look at the pictur 出卷网es in 1a. Discuss with your group, in what order do you think they were invented Try to number them [1-4]. 2. Ss discuss with their partners and number the pictures. 3. Talking about the inventions: A: I think the TV was invented before the car. B: Well, I think the TV was invented after the TV. Step4. Listening (1b) 1. T: Tell Ss look at the pictures and years on the left. 2. Play the recording for the Ss to listen. 3. Ss listen 出卷网to the conversation and try to match the invention with the proper year. 4. Play the recording again. 5. Check the answers. Step5. Pair work (1c) 1. Ss try to remember the invention and the year. 2. Student B, cover 出卷网 the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again. 3. Let some pairs ask and answer in pairs. e.g. A: When was the telephone invented B: I think it was invented in 1876.… Step6. Learning the new words & Listening Look at the pictures then learn the new words. Work on 2a: T: Tell Ss they will hear some interesting inventions. 1. Look at the pi 出卷网ctures in 2a. Discuss the things what they are used for. 2. Play the recording for the Ss to listen and number the pictures. 3. Play the recording again to check the answers. Work on 2b: 1. Let Ss read th 出卷网e chart below. Explain some main sentences for the Ss. Make sure they know what to do. 2. Play the recording for the Ss to fill in the blanks. 21教育名师原创作品 3. Play the recording again to check the answers. 4. Listen again and fill in the blanks. Step7. Pair work (2c) 1. Tell Ss to make con 出卷网versations using the information in 2b. Make a model for the Ss. A: What are the shoes with special heels used for B: They are used for changing the style of the shoes. 2. Let some Ss make conversations using the information in 2b. 3. See which group does the best. Step8. Role-play(2d) 1. Read the conversations and Let Ss read after the teacher. 21*cnjy*com 2. Explain some new words and main points in the conversation. 3. Ask Ss to role-play the conversation in groups. Step9. Language points 1. Well, you do seem to have a point… have a p ... ...