人教版九年级Unit 6 When was it invented -Section B 1a—1e-ppt课件-(含教案)-市级公开课-(编号：10921).zip

When was it invented? Unit 6 ( Section B 1a-1e ) Whats this? How does it taste? lemon sour What are the four basic kinds of tastes? soursweet bitter salty potato chips salty sweet ice cream salted duck egg salty lemons sour Can you name some food that are associated with the four tastes? objectives 1. To learn some words to describe how food can taste crispy, sour, sweet, salty 2. To listen for specific information 3. To talk about the history of potato chips, using passive voice Did you know potato chips were invented by mistake? The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word. 1a sweet crispy salty sour crispy, salty sour sweetsalty Write the name of a different food after each word. sweet crispy salty sour banana, water melon fried chicken, potato chips cheese, salted eggs vinegar, lemon 1b Look and guess: 1.What are they talking about? 2. Where does the story happen? T T F F Listen and circle T for true or F for false. 1. Potato chips were invented by mistake. 2. They were invented in 1863. T T F F 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. T T F F T T F F T T F F T T F F 1c back in 1853. thin didnt want Listen again. Complete the sentences. TheThe HistoryHistory ofof PotatoPotato ChipsChips Do you know how potato chips were invented? Potato 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 _. were invented 1853 thin crispy really salty 1d 1.How and when were potato chips invented? 2. What was 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? Read the conversation and answer the questions. wordword 文档文档 链接链接 1. Potato chips were invented by mistake in 1853. 2. George Crum. He is a cook. 3. George Crum didnt mean to make it. He then cut the potatoes really, really thin, and cooked them for a long time until they were crispy. 4. To make food crispy, we can cut it really, really thin and them cook it for a long time. To make food salty, we can put lots of salt on it. 5. We may invent something by accident. Just keep an eye on our daily life. Maybe one day we will be inventors. Check your answers: Ehit is really a long story. Never mind, I am not busy. Oh, it was in 1853. Wow, cool. Why was it an accident? They were invented by a cook called George Crum. When was that? Did you know potato chips were invented by mistake? Wow, I didnt know that. Who invented them? For example: Make a conversation about the invention of potato chips. Use the information in 1c and 1d. 1e Role-play 1. Read the dialogue aloud for a few minutes by yourself; 2. Role play in groups; 3. Role play in front of the class. Well see which group does the best. 1e 1. Potato chips were invented by mistake. 薯片是无意中被发明出来的。薯片是无意中被发明出来的。 by mistake 错误地错误地;无意中无意中,常置于句末。常置于句末。 I brought other baggage by mistake. 我拿错了别人的行李。我拿错了别人的行李。 Im sorry that I took your schoolbag by mistake . 很抱歉我错拿了你的书包。很抱歉我错拿了你的书包。 拓展延伸拓展延伸 mistake为名词时，还可构成短语：为名词时，还可构成短语： make a mistake （犯错误）（犯错误） mistake为动词时，常用于为动词时，常用于 mistakefor （把（把误认为误认为） I mistook Kate for her sister when I met her yesterday. Now 2 minutes to test your spelling. English-Chinese crispy salty sour 客户客户 错误地错误地 When finishing, exchange your papers to see who does the best. Chinese-English 根据句意和首字母提示补全单词。根据句意和首字母提示补全单词。 1. I dont like lemons, because they are s_. 2. Lucy and Lily are twins. I usually call their names by m_. 3. For a restaurant, c_ are the most important. our istake ustomers 注注: 另附另附word文档。文档。 点击此处链接点击此处链接 1. Write a short passage about the history of your favorite food. 2. Finish the exercises in Learning English. 3. Preview the new words and expressions. 4. Preview the passage Do You Know When Basketball Was Invented on page 46? Homework Unit 6 When 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 customer 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 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 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 invented 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? Potato 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，回答问题。再听录音，回答问题。 1.How and when were potato chips invented? 2. What was 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“_”与_ _相当。 They came up with a good idea _ _ _. 他们终于想出了好办法。 (2) mistake n. “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。