Unit 6 When was it invented? Section B 1a-1e 课件 2025-2026学年人教版（2012）英语九年级全册

该初中英语课件围绕食物味道词汇与薯片发明史展开，通过“感知—理解—运用—迁移”的学习路径构建知识支架。从日常购物对话引入味觉表达，逐步过渡到听力材料中薯片的意外发明过程，再借助思维导图梳理时间、人物、原因、步骤和结果，最终引导学生用被动语态复述故事，实现语言输入到输出的自然转化。 其亮点在于融合语言能力、思维品质与文化意识三大核心素养，以真实情境激发兴趣，如通过“by mistake”这一短语解析培养逻辑推理能力，借助薯片发明故事渗透创新意识与好奇心的价值观教育。课堂设计包含听力填空、图片匹配、句型操练及小组讨论等多元活动，既强化语言实践，又提升跨文化理解力。学生在任务驱动中发展听说读写技能，教师可借此优化教学结构，增强课堂互动性与育人实效。

Unit 6 When was it invented? Section B (1a-1e) Learning Objectives 学习一些食物名词以及表达味觉的常用词汇：crispy, sour, sweet, salty… 能够理清描述某种食物发明的基本框架（时间、发明者、原因、具体过程、结果等）。（学习理解） 结合图片所给信息，描述食物以及其对应的味觉体验；能够理清听力对话中描述的薯片的发明历史及过程；结合图片，运用被动语态对薯片的发明过程进行复述。（应用实践） 理解每一个现有的发现可能都是一个美好的意外，因此在生活中要多留意，多观察，对事物保持好奇心；并在课后拓展了解一些有趣的意外的发明，将所了解到的信息与大家分享。 （迁移创新） 通过本课时学习，我们能够： 1 2 3 2 Let’s go shopping! Different food has different tastes. 3 We bought pears, watermelons and ice-cream. How does the food taste? Sweet. 4 I bought salted duck eggs, bacon and salt. How does the food taste? Salty. /ˈsɔːlti/ 5 I bought oranges, lemons and vinegar. How does the food taste? Sour. /ˈsaʊə(r)/ 6 I bought potato chips. How does the food taste? Crispy. /ˈkrɪspi/ 7 I bought spicy gluten and chili. How does the food taste? Spicy. /ˈspaɪsi/ 8 What kind of food do you like? Which taste do you like best? 9 酸的 甜的 苦的 辣的 咸的 脆的 新鲜的 软的 硬的 多汁的 健康的 厚的 薄的 好吃的 sour sweet bitter hot/spicy salty crispy fresh soft hard juicy healthy thick thin delicious Words to describe tastes 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 sour salty sweet salty Write the name of a different food after each word. 1b sweet ____________________________ crispy ____________________________ salty ____________________________ sour ____________________________ banana watermelon Beijing Duck fried chicken vinegar cookie salted duck eggs lemon I think bananas and watermelons are sweet. 12 Quick response 13 Prediction They are talking about potato chips. What are they doing? Do you know how potato chips were invented? Read the following sentences, predict the answers. T F T F T F T F T F T F 1c 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. 错误地；无意中 最后，终于 顾客；客户 足够咸 1. Potato chips were invented by mistake. T F 2. They were invented in 1863. T F 3. The customer thought the potatoes were not thin enough. T F 4. The customer said they were not salty enough. T F 5. George wanted to make the customer happy. T F 6. The customer was happy in the end. T F Listen and circle T for true or F for false. 1c Listen again. Complete the sentences. 1d The History of Potato Chips 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 Listen again and fill in the blanks. Boy 1:Hey,did you know that potato chips were invented __________? Boy 2: Really? What do you mean? Boy 1: Well, here on the bag it says that they were invented _______________ George Crum. Boy 2: When was that? Boy 1: Oh, it was____________ . Boy 2: So, why was it ____________? Boy 1: Well, one day a customer came in the restaurant where George worked. He ordered ________________________ . When the potato came, he said they were cut __________ and sent them back to the kitchen. by mistake by a cook called back in 1853 an accident a plate of fried potatoes too thick Boy 2: So what happened? Boy 1: Well, George was angry so he cut the potatoes really, really thin, and he cooked them for a long time_____________________ . And he________________ them so they were really salty . He thought the customer would hate them. Boy 2: And? Boy 1: And the customer loved them and ________________ . He told the other customers about them, and soon everyone was ordering thinly-cut, ____________potato chips. Boy 2: And we're still eating them today. What a cool story! until they were crispy put lots of salt on asked for more crispy, salty Listen again and fill in the blanks. 1 2 The potatoes are cut very thin. 4 3 They are cooked for a long time. Some salt is put on them. They become crispy. Retell the steps. Do you know how to make potato chips? 20 The History of Potato Chips When Who How Result Why 1853 George Crum The customer said the fried potatoes were cut too thick and sent them back to the kitchen. George was angry. 1. Cut the potatoes really, really thin. 2. Cooked them for a long time until they were crispy. 3. Put lots of salt on them. The customer loved them and asked for more. Finish the mind map, then retell. Do you know potato chips were invented ? They were invented by a ______called George Crum in . by mistake cook 1853 1 Retell the story Who When 2 One day a customer _______a plate of fried potatoes. When they came, he said they________ too ______ and sent them back to the kitchen. ordered were cut What happened ? thick 3 George was so angry that he cut the potatoes really ,and cooked them for a long time until they were . Then he put lots of salt on them, so it tasted . He thought the customer would hate them. thin crispy salty What happened ? 25 4 However, the customer them and . And we’re still eating them today. loved asked for more What happened ? How much do you know about potato chips? Potato chips by many people. It that potato chips are more than 150 years old. Even today potato chips still by most people. They by accident in 1853. The inventor George Crum. One day, he to serve fried potatoes by a customer. When the potatoes came, the customer thought they too thick. The potatoes for a long time until they were crispy. some salt ________on potato chips. are loved is said are enjoyed were invented was called was asked were cut were cooked is put Creative inventions Creative invention Creative inventions come from small things in life. 28 by mistake为介词短语，意为“无意中；错误地”, 相当于accidentally 【语境领悟】 I missed the school bus by mistake this morning. 今天早上我无意中错过了校车。 I took your pen by mistake. 我错拿了你的钢笔。 Language points mistake 1. n. 错误。make a mistake/make mistakes 犯错误 eg:I used to make mistakes in spelling．我过去常常犯拼写错误。 2. v. 弄错; 误解 eg:You mistook my meaning entirely. 你完全误解了我的意思。 mistake ... for ... 错把……当成…… eg:Don't mistake me for an American. 不要把我误会成美国人。 in the end 最后，终于 (相当于finally 或 at last) 【拓展】 at the end of 可以指时间，也可指处所，意为“在……尽头，在……结束时”。 by the end 常和of相连，用于指时间，意为“到……底(末)为止” 【学以致用】1.他在花园的尽头的那边。 He is down ______________ the garden. 2.最后，我们找到了答案。 ____________, we found the answer. 3.到比赛结束时, 我们已经精疲力尽。 _____________________, we were exhausted. at the end of In the end By the end of the game 重点词组：1.by mistake 2.thin enough 3.salty enough 4. in the end 重点句型： 1.Potato chips were invented by mistake. 2.The customer thought the potato were not thin enough. 3.The customer said they were not salty enough. 4.The customer was happy in the end. 重点语法：Passive voice： Potato chips were invented by mistake. (　)1. —Sorry, Pam, I took your notebook ______． —It doesn't matter. They look the same as each other. A．by hand B．by mistake C．in trouble D．in danger (　)2. I can't stand these ______ oranges. I like sweet food. A．crispy B．salty C．sour D．delicious (　)3 .The soup isn't ______. Please add some ______ to it. A．salt enough; salty B．salty enough; salt C．salt; salty enough D．enough salty; salt (　)5.In summer, Susan often drinks some _____ water when she comes back from school. A．boiling B．boil C．boiled D．boils B C B C Exercises 一、单项填空 1. The TV ____________ (invent) around 1927. 2. They are used for _______ (see) in the dark. 3. This kite _________ (make) by Jack. 4. Tea ______________ (discover) a long time ago. 5. Our classroom _________________ (should clean) every day. was invented seeing was made was discovered should be cleaned Exercises 二、用所给词的正确形式填空 I don’t like eating chocolate. The taste is too _______ . Mom added salt but it still wasn’t ______ enough. I prefer lemons to oranges. I like the ______ taste. She likes _______ cookies. They are hard, dry and easily broken. sweet salty sour crispy crispy sweet salty sour 三、选词填空 Exercises Excellent Good To be improved 评价项目 自我评价 同伴评价 老师评价 能够学习一些食物名词以及表达味觉的常用词汇 能够理清描述某种食物发明的基本框架（时间、发明者、原因、具体过程、结果等） 能够理清听力对话中描述的薯片的发明历史及过程；结合图片，运用被动语态对薯片的发明过程进行复述 能够理解每一个现有的发现可能都是一个美好的意外，因此在生活中要多留意，多观察，对事物保持好奇心 35 Homework Must do: 1. Memorize the new words and phrases; 2. Finish the exercises; 3. Preview the passage Do You Know When Basketball Was Invented on page 46. Try to do: Search for more inventions that you are interested in. 36 ¡¾¿Î¼þÕ¾www.kjzhan.com¡¿ÊÕ¼¯ÕûÀí,Ãâ·ÑÏÂÔØ, track 6 2014 δ֪ 74370.055 ÇúÄ¿ 11 δ֪ ÎÞ±êÌâ - 14-08-15 (1), track 11 δ֪ 73011.555 eng - Track:Comments $