1、Unit 6When was it invented? Section B 1a1e Teaching aims（教学目标）（教学目标） 一、通过学习，掌握下列词汇：sour, customer，website, list, mention, pioneer 了 解以下词汇：crispy, by mistake，electricity, zipper 二、口、笔头掌握以下句型： 1. The zipper was invented by Whitcomb Judson in 1893. 2. Potato chips were invented by mistake. 3. The custo
2、mer was happy in the end. 4. They were invented in 1863. 5. George wanted to make the customer happy. 三、能用过去的被动语态（肯定、否定、及疑问句形式）熟练的谈论某些发明。 四、学会表达由于这些创造和发明对你的生活的帮助和对生活质量提高认识 Difficulties（难点（难点） ：用过去的被动语态（肯定、否定、及疑问句形式）熟练的 谈论某些发明。 Teaching steps（教学步骤）（教学步骤） 1. Warm-up and revision（课堂热身和复习）（课堂热身和复习） Show
3、 Ss the pictures on the screen and get them to answer the question. 教学设计说明：创设情景，导入新课。教学设计说明：创设情景，导入新课。 2. Work on Section B 1a. The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word. 3. Work on 1b. Write the name of a different
4、 food after each word. 4. Work on 1c. Task 1: Show the picture of potato chips and answer the questions: How do the potato chips taste? Do you like them? Do you know how they were invented? Task 2: Listen and circle T for true or F for false. 1.Potato chips were invented by mistake. 2.They were inve
5、nted in 1863. 3.The customer thought the potatoes were not thin enough. 4.The customer said they were not salty enough. 5.George wanted to make the customer happy. 6.The customer was happy in the end. 5. Work on 1d. Listen again. Complete the sentences. Do you know how potato chips were invented? Po
6、tato chips _ by a cook called George Crum. They were invented in _. George Crum cut the potatoes really, really _ and then cooked them for a long time until they were _. Finally he put lots of salt on them so they were _. 6.再听录音，再听录音，回答回答问题。问题。 1.How and when were potato chips invented? 2. What was
7、the name of the inventor? What was his job? 3. Why was it a mistake? What did the cook do with the potato then? 4. How can you make food crispy/salty? 5. What can we learn from the story? 教学设计说明教学设计说明：跟读模仿语音和语调。跟读模仿语音和语调。 完成学习目标一、二、三完成学习目标一、二、三 。 7. 观察与思考：观察与思考： 通过听力训练思考下列几个词组的使用 （1）in the end 意为“_”
8、与_ _相当。 They came up with a good idea _ _ _. 他们终于想出了好办法。 (2) mistaken. “错误，过失”。by mistake 意为_ He put salt into his coffee_ _. 他错把盐放入了咖啡中。 8. Work on 1e Make a conversation about the invention of potato chips. Use the information in 1c and 1d. A: Did you know potato chips were invented by mistake? B: Wow, I didnt know that. Who invented them? A: 完成学习目标四完成学习目标四 。 9. 小结。检测本课学习情况。小结。检测本课学习情况。 10. Homework 利用本课所学 ，向你周围的人用英语介绍薯条或其他发明物的的来历吧！ 教学设计说明：进一步巩固本课重点功能句。教学设计说明：进一步巩固本课重点功能句。
