九年级519299987185090560-李欣公开课教案

1、公开课教案Unit 6 When was it invented?Section A 1a1c箭竹中学 李欣Teaching aimsKnowledge objects:通过学习，熟练掌握以下词汇：style, project, pleasure, mention 通过问答，掌握以下句型：1. A: When was the telephone invented? B: I think it was invented in 1876.2. A: What is it used for? B: It is used for calling.Ability objects:1.正确运用被动语态谈论

2、重要的发明的历史和用途。2.掌握一般过去时态的被动语态, 由 was/were +过去分词构成。学会单词invent, 以及be used for 的用法Emotion and value:通过熟悉我们周围经常使用发明物的历史来开阔眼界，丰富自己的阅历，使自己养成勤于思考，善于总结的好习惯。 （本节课的生词较少，而且单词的拼写比较简单，所以学生学起来不会感到困难，如果班级学生的水平较高，可以鼓励学生当堂掌握。）Importance: 1.正确运用被动语态谈论重要的发明的历史和用途。2.掌握一般过去时态的被动语态, 由 was/were +过去分词构成。学会单词invent, 以及be used

3、 for 的用法Difficulty：被动语态/be used for 的用法。Teaching steps（教学步骤）三、教学过程I. Warming up1. 展示一些近代发明的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: Its a car. S2: Its a telephone. S3: Its a television. T: Do you know who these inventors are? S1: Karl BenzS2: Alexander BellS3: J. L. Bai

4、rd Let Ss match the inventions and the inventors. . 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. . Talking1. Look at the pictures in 1a. Discuss with your group, in what order do you

5、 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: I dont agree with you. I think the TV was invented after the car. . Listening (1b)1. T: Tell Ss look at the

6、 pictures and years on the left. Finish 1b.2. Listen again and complete the conversation.Alice: Was your life very _ when you were a kid?Grandma: Oh, _. Why?Alice: Well, you didnt have modern inventions like a _, right?Grandma: Of course we did! How old do you think I am? The telephone _ in _. You n

7、eed to take a _ class, Alice!Alice: Haha! How about _? They _ yet, were they?Grandma: Yes, they were. Cars _ in _. My family had a car.Alice: Well, did you _?Grandma: No, we couldnt _ one. They were _ in those days. The TV _ around _, I think.Alice: Well, I know that you didnt have a _, because we l

8、earned in school that personal computers _ in _.Grandma: Youre right. But I have one now!. Pair work (1c)1. Ss try to remember the invention and the year. 2. Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again.

9、 3. Let some pairs ask and answer in pairs. . A: When was the telephone invented? B: I think it was invented in 1876.VI. Exercise1. Sweaters are used for _ warm.A. to give B. to keep C. giving D. keeping2. _ do you think the computer was invented by? A. When B. What C. Who D. Why3. Shed like to have

10、 a mobile phone _ she could communicate with her friends. A. though B. until C. unless D. because4. Does the boy enjoy _ music with his MP4 all day? A. to hear B. hearing to C. to listen D. listening to5. What is a telephone used _ , class? A. to B. in C. for D. about6. Was a car invented _ March 4,

11、 1876? A. on B. in C. at D. of7. Can you tell me _ the train was invented?A. what B. who C. when D. which8. I think the _ invention is a mobile phone. What about you? A. Helpful B. most helpful C. Helpfully D. most helpfully9. The bridge _ by the workers in 2023. A. built B. build C. was build D. was built10. Rice is grown in South China _ farmers. A. by B. in C. with D for VII .Summary Whats the most useful invention?Who invented it?When was it invented?What is i