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视频课题：Unit 6 When was it invented （5）Section B 1a-1e
教学设计、课堂实录及教案：Unit 6 When was it invented （5）Section B 1a-1e
Unit 6 When was it invented （5）Section B 1a-1e
【学习目标】
掌握本课单词、短语、句型
继续学习使用一般过去时态的被动语态进行听力训练
【新单词】
crispy /krispi/ adj. 脆的；酥脆的
sour /sauə(r)/ adj. 酸的；有酸味的
salty /sɔ:ti/ adj. 咸的
by mistake 错误地；无意中
customer /kʌstəmə (r)/ n. 顾客；客户
soybean [‘sɒɪbiːn] n.大豆
soy milk n. 豆浆
gypsum [‘dʒipsəm] n.石膏
immortal [i‘mɔːt(ə)l] adj.永生的
alchemy [‘ælkimi] n. 炼金术；魔力
addicted [ə‘diktid]adj.沉迷于
【文化要点】George /dʒɔ:(r)dʒ/ Crum /krʌm/ 乔治 • 克拉姆
【教学过程】
Step1:Lead-in
Step2: Learning Procedures
Level 1：New words
Level 2: Listen and answer the questions.
1. When was the potato chips invented?
______________________________________________
2．Who invented the potato chips ?
______________________________________________
Level 3: Activity 1c.
Listen and circle T or F.
Level 4: Activity 1d.
Listen again and then complete the sentences.
Level 5:Role-play
Voiceover(旁白)：Potato chips were invented by mistake. It’s said that they were invented by a cook called George Crum. One day, a customer came into the restaurant where George worked.
Waiter: May I take you order now, sir?
Customer: Yes, I’d like a plate of fried potatoes.
Customer: Waiter/Waitress, the potatoes were cut too thick. I’d like to change another dish.
Waiter: I am really sorry for that. I will change it for you.
Voiceover(旁白):The cook was very angry.
Cook: What? Too thick? Now I will cut it really really thin. And cook it for a long time. Then put more and more salt on them.
Customer: Yummy, It is crispy and salty.
Voiceover(旁白)：Then potato chips have been loved by everyone since then.
Level 6: exercises
1.Potatoe chips ________ ________by George Grum in1893.（invent）
2. A plate of fried potatoes ________ _________by a customer.(order)
3. Potatoes ___________ __________too thick.(cut)
4. Potatoes were cut really thin.
5. Potatoes ________ ________for a long time until they were crispy.(cook)
6. Crispy and salty potato chips _______ _________by everyone.（love）
Level 7: Retell the story
Level 8: Listen and fill the blanks
1.___________________, Liu An, the king of Huainan was addicted to alchemy(炼金术)
2.He was making an immortal pill in_________.
3.He ___________add some gypsum in it.
4.Many people believe that's how tofu________ __________.
5.The invention of tofu however ___________changes the fate(命运) of soybeans.
Step3: Homework:
Huainan Toufu
• 2000多年前刘安发明豆腐；
• 沉迷炼金术，( was addicted to alchemy)
• 制长生(immortal)不老药；
• 意外加入石膏(gypsum)；
• 把豆浆做成豆腐；
• 美味的豆腐被大家所喜爱。
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
Step4:Summary:
Of Studies 《论读书》
——Francis Bacon 弗朗西斯·培根
Histories make men wise. 读史使人明智
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