1. Unit 6 When was it invented? Section A 2d / Section B 1a–1e

2. 一、创设情境，呈现目标 invention 1885 Ford

3. 一、通过学习，掌握下列词汇： project,pleasure,zipper,daily, website, list, mention, pioneer, customer, sour,salty, crispy, 了解以下词汇： have a point,by mistake,in the end, 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．

4. What do these things have in common?

5. 1) 拉链是在 1893 年被惠特科姆. 贾德森发明的。 The zipper________ __________ ________ Whitcomb Judson ____ 1893. 2) 但是在那个时候， 它没有被广泛使用。 But ___ ______, it _______ ________ widely. 3)You can see zippers_____(in/on/at)dresses shoes… 4)Can you help me think of an_________(invent)? 5.The zipper ________(invent) ___(in/on/by)Whitcomb. was inventedby in at that time wasn’t used 二、自主学习，交流展示 朗读 P42 2d 中的对话，完成下列句子。 on invention was invented by

6. Role-play the conversation: Paul: Hey Roy, the subject for my school project is “Small inventions that changed the world”. Can you help me think of an invention? Roy: My pleasure ! Let me think … hmm … I know! The zipper! Paul: The zipper? Is it really such a great invention? Roy: Think about how often it’s used in our daily lives. You can see zippers on dresses, trousers, shoes, bags … almost everywhere ！ Paul: Well, you do seem to have a point … Roy: Of course! I thought about it because I saw a website last week. The pioneers of different inventions were listed there. For example, it mentioned that the zipper was invented by Whitcomb Judson in 1893. But at that time, it wasn’t used widely. Paul: Really? So when did it become popular? Roy: Around 1917. Why does Roy think the zippers are small inventions that changed the world?

7. For example, it mentioned that the zipper was invented by Whitcomb Judson in 1893. Make a conversation with the following information. A:______________________________? B: In 1893. A:______________________________? B: By Whitcomb Judson. When was the zipper invented Who was the zipper invented by

8. crispy and salty Describe how the food tastes. sour crispy food:

9. sweet food: sweet

10. sour food:salty food:

11. The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word. sweet crispy salty sour

12. Write the name of a different food after each word. sweet ________ crispy ________ salty ________ sour ________ 1a

13. How do the potato chips taste? Do you like them? Do you know how they were invented? Potato chips

14. 1c 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. T F 三、难点释疑，拓展延伸

15. 1d Listen again. Complete the sentences. 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 salty

16. 再听录音，补全对话。 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 by _______________ called George Crum. Boy 2:When was that? Boy 1:Oh, it was back in 1853. Boy 2:So, why was it an accident? Boy 1: Well, one day, a customer came in to the restaurant where George worked. He ordered a plate of fried potatoes. When the potatoes came, he said they __________ too thick and sent them back to the kitchen. 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 until they were _________. And he put lots of salt on them so they were really ___________. He thought the customer would hate them. Boy 2:And? Boy 1:And the customer loved them and asked for more. He told the other customers about them, and soon everyone was ordering thinly cut, crispy, salty potato chips. Boy 2:And we’re still eating them today. What a cool story! by mistake a cook were cut crispy salty

17. 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。 最终 at last in the end 错误地，无意中 by mistake

18. 我的收获 Words ： ( 词 ) Listening skill: ( 听力技巧 ) Sentences: ( 句 ) 根据问题预测听力关注点。 sour, customer, website, list, mention, pioneer 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.

19. 根据汉语意思, 完成下列各句, 每空一词。 1. 你认为明天谁会来？ _____ ______ _____ _____ will come tomorrow? 2. 太阳镜能用来保护你的眼睛不受阳光的伤害。 Sun glasses can _____ ______ _____ protecting your eyes from bright sunlight. 3. 这种新的教学方法是谁发明的？ _____ was this new teaching method _______ ___? 4. 炸薯片是无意中被发明的。 Patato chips were invented _________________. 5. 最后顾客高兴了。 The customer was happy _______________. 6. 炸薯片不够咸。 The patato chips ____________________________. Who do you think be used for Who invented by 四、反思小结，当堂测评 by mistake in the end were not salty enough

20. 3. These trees should __________ (water) often. This way, they can grow better. 4. 1,000 English words ________________ (learn) by me since I started to learn English. 5. An old man was seen _______ (get) on a bus just now. be watered have been learned to get 根据句意, 用括号中所给单词的正确形式填空。 1.— Where is my desk? — It ____________ (carry) away by me just now. 2. A speech on Chinese history _____________ (give) in the school hall next week. 6. —Could I borrow your dictionary? —Sorry, it _____________ (use) by me now. 7. Our headmaster said a new library _______________ (build) in our school the next year. was carried will be given is being used would be built 预习：课本 P 43 3a 完成同步练习册 P60 语块积累。