2. Unit 9 When was it invented? SectionB(1a-2c) Xiu Yan Junior High School Wang Wenjing

3. Section B Language Goal: 1. 重点单词： sweet ， crispy ， salty ， sour ， chef ， sprinkle 2. 重点短语： by mistake ， sprinkle on, make sb adj, a chef called George 3, 重点句子：

4. 1 ， The potato chips were invented by mistake 2 ， George wanted to make the customer happy. 3 ， he cooked them for a long time until they were crispy. 4 ， And he sprinkled lots of salt on them so they were really salty

5. 一，自主学习：预习课文，翻译： 1. 脆的 2. 咸的 3. 酸的 4. 厨师 5. 撒，洒 6. 错误的 7 薯条的历史 8. 顾客认为这些土豆不够薄. 9. 乔治想使顾客高兴. 10. 最后顾客高兴了. 11. 乔治. 克拉姆把它们炸了很长时间知道它们变脆. 12. 薯条是被意外地发明出来的.

6. Warming up What is your favorite food ， drink ， fruit ？ List them and describe their tastes.

7. sour, sweet lemon

8. ice cream sweet ， cold

9. pleasant smell tea

10. potato chips crispy, salty

11. 1a sweet crispy salty sour Fill in the blanks with words in the box. sour sweet crispysalty sweet

12. salty ________________________ 1b Write the name of a different food after each word. sour ________________________ crispy _______________________ sweet _______________________banana candy apple biscuit potato chips vinegarlemon

13. Before listening: Guess: 1, When and where were potato chips invented ? 2, Who were potato chips invented by? 3, How were potato chips invented?

14. 1. The potato chips were invented by mistake. 2. They were invented in 1863. 3. The customer thought the potatoes weren’t thin enough. 4. The customer said they weren’t salty enough. 5. George wanted to make the customer happy. 6. The customer was happy in the end. 2a,Listen and circle “T” or “F”. TF T T T T T F F F F F While listening:

15. 2b Listen again and complete the sentences. The history of chips _____________ that potato chips were invented by mistakes? Chips _____________ by a chef called George Crum. They were invented in ______.George Crum cooked them for a long time until they ___________. And he sprinkled lots of salt on them so they were ___________. (1) (5) (3) (4) (2) Did you know were invented 1853 were crispy really salty

16. Tapescripts Boy 1 : Hey, did you know that potato chips were invented by mistake? Boy 2 : Really? What do you mean? Boy 1: Well, here on the bag it says that they were invented by a chef called George Crum. Boy 2 : When was that? Boy 1: Oh, it was way back in 1853. Boy 2: So, why was it an accident?

17. Tapescripts Boy 1 : Hey, did you know that potato chips were invented by mistake? Boy 2 : Really? What do you mean? Boy 1: Well, here on the bag it says that they were invented by a chef called George Crum. Boy 2 : When was that? Boy 1: Oh, it was way back in 1853. Boy 2: So, why was it an accident?

18. Boy 1: Well, one day a customer in the restaurant where George worked sent back his plate of fried potatoes because he said they were cut too thick. Boy 2: So what happened? Boy 1 : Well, George was in a bad mood, so he cut the potatoes really, really thin, and he cooked them for a long time until they were crispy. And he sprinkled lots of salt on them so they were really salty. He thought the customer would hate them.

19. 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 sliced, crispy, salty potato chips. Boy 2 : And we're still eating them today. What a cool story! Boy 1: Yeah.

20. After-listening ： listen and fill in the blanks Poato chips were _____(invent)____ （意外地）. they were invented __ a chef ___(call) George Crum. One day a customer ___(think) the fried potatoes weren't ______( 不够薄 ) and weren't ____ （咸的） enough. So George ___ （切） them really thin and weren't salty enough. So George cut them really thin and ____ (cook) them for a long time ___ they were ___ ( 脆的 ). and he___(sprinkle) a lot of salt ___ them so they were salty.

21. 2c PAIRWORK Role play the conversation about the invention of the potato chip. Model A: Did you know potato chips were invented by mistake? B: Wow, I didn’t know that. Who invented them? A: …

22. Explanation: mistake 作名词 “ 错误，误会 ” 。也可以作动词 “ 弄 错，犯错 ” 。常见形式： e.g. （ 2 ） make a mistake 出错 You have made a foolish mistake. 你犯了一个愚蠢的错误。 （ 1 ） by mistake 错误地 e.g. He put salt in her cup of tea by mistake. 他错把盐放进她的茶里。

23. mistake 作动词, 意为 “ 弄错, 误解 ” （ 3 ） mistake…for… 错把 …… 当作 …… They mistook him for his brother. 他们错把他认作他的兄弟。 e.g. You’d better say sorry to her, because you’ve mistook what she said. 你该向他道歉, 因为你误解了她的话。 e.g.

24. 1. All the students in my dormitory enjoy playing football. ( 同义句转换 ) Football ___ _______ by the students in my dormitory. 2. When he was seventy, William decided to go to college. ( 同义句转换） At the ____ of seventy, William made a ________ to go to college. is enjoyed age decision 达标检测： 句型转换

25. 3. Kate took good care of the baby yesterday evening. ( 改为被动句） The baby ____ _____ _____ ____ ___ by Kate yesterday evening. 4. The suspect( 嫌疑人 ) was seen to leave the building in a hurry by him. ( 改为主动句 ) He ____ the suspect ______ the building in a hurry. saw leave was taken good care of

26. 5. Did you turn off the TV last night? ( 改为被动句 ) ____ the TV ______ ___ by you last night? 6. The old woman didn’t leave before the young man came back to take his bike. ( 同义句转换 ) The old woman ____ ___ leave _____ the young man came back for to take his bike. Was turned off did notuntil

27. HOMEWORK Collect information about the inventionof something as much as you can. And then write a letter to a foreign friend about it.