1. Unit 6 When was it invented? Period 5 Section B 1a-1e

2. How do they taste? crispy salty They taste crispy. They taste salty.

3. crispy They taste hard and crispy.

4. sour They taste...

5. sweet soft They taste...

6. bitter It tastes...

7.  They taste very hot.

8. New words  crispy /krispi/ adj. 脆的；酥脆的  sour /sauə(r)/ adj. 酸的；有酸味的  by mistake 错误地；无意中  customer /k ʌ stəmə (r)/ n. 顾客； 客户

9. 1a. Fill in the blanks with the words given. sour sweet, crispy, salty, sour salty crispy

10. sweet

11. 1b. Write the name of a different food after each word. sweet: crispy: salty: sour: candy, banana, apple, cake potato chips, salad, biscuit, salt, pizza, french fries, olives, sausage vinegar, grape, lemon, pickle, grapefruit, orange

12. 1c. Listen and circle “T” or “F”.

13. 1. 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. T F T F F T

14. The history of potato chips Did you know that potato chips were invented by mistake? Potato chips _____________ by a cook called George Crum. They were invented in _______. George Crum cut the potato chips really, really thin and cooked them for a long time until they __________. And he put lots of salt on them so they were _____________. were invented 1853 were crispy really salty 1d. Listen again and complete the sentences.

15. 再听录音一次，填空完成对话。  Boy 1: Hey, did you know that potato chips were mistake?  Boy 2: Really? What do you mean?  Boy 1: Well, here on the bag it says that they were invented by a  cook George Crum.  Boy 2: When was that?  Boy 1: Oh, it was back in 1853.  Boy 2: So, why was it an ? by called accident

16.  Boy 1: Well, one day, a customer came into the restaurant where George worked. He a plate of fried potatoes. When the potatoes came, he said they were cut too thick and them back to the kitchen. day,  Boy 2: So what happened? ordered sent

17.  Boy 1: Well, George was angry, so he cut the potatoes really, really thin, and he cooked them for a long time they were crispy. And he put lots of on them so they were really salty. He thought the would them.George  Boy 2: And? until salt hate

18.  Boy 1: And the customer loved them and asked for. He told the other customers about them, and soon everyonecustom  was thinly cut, crispy, salty potato chips.  Boy 2: And we’re still eating them today.  Boy 1: What a cool story! more ordering

19.  Potato chips were invented by mistake. They were invented by a cook called George Crum. One day a customer thought the fried potatoes weren't thin enough and weren't salty enough. So George cut them really thin and cooked them for a long time until they were crispy. And he put a lot of salt on them so they were salty. 归纳听力材料大意，改写成短文

20. 短语归纳  be invented, by mistake,  on the bag, back in 1853,  one day, in the restaurant,  send… back, a plate of fried potatoes, be cut too thick, cut…really, really thin,  cook…a long time, put… on…,  asked for…, tell… about…,  thinly-cut, crispy, salty potato chips,  a cool story

21. 1e. Pair work A: Did you know potato chips were invented by mistake? B: Wow, I didn’t know that. Who invented them? A: it was invented by a cook called Geroge Crum.

22.  B: When was that?  A: It was invented back in 1853.  B: Was it an accident?  A: A customer sent back his plate of fried potatoes  because they were cut too thick.  George cut the potatoes really, really thin.  And he cooked them for a long time until they were crispy.  He put lots of salt on them  so they were really salty.

23.  B: Did the customer loved them?  A: Yes, they asked for more.  Everyone was ordering  thinly-cut, crispy, salty potato chips.  B: We like them, too.  A: So do I.

24. Summaries  by mistake  What do you mean  it was back in 1853  sent them back to  what happened  asked for more  ordering thinly cut, crispy, salty potato chips.  What a cool story!

25. Explanation 1. Potato chips were invented by mistakes. mistake 作名词 “ 错误，误会 ” 。也可以作动词 “ 弄 错，犯错 ” 。常见形式有： make a mistake 出错 e.g. You have made a mistake here. mistake…for… 错把 …… 当作 …… They mistook him for his brother. by mistake 错误地 e.g. They sent the letter to me by mistake.

26. 2. Geroge wanted to make the customer happy. make 表示 “ 使 …… 怎么样 ” ，其后常带复合宾 语。常见结构为：主语 +make+ 宾语 + 名词 / 形容词 ( 做宾补 ) 。例如： The boss can make the young man a rich man.

27. 3 复合名词复数的构成  potato chips 是一个复合名词，其中第一个名词 用作定语修饰后一个名词，这样的例子有很多， 又如 : alarm clock, telephone number 等。  知识拓展  复合名词变复数的规则，你一定要牢记啊！  ◎通常只把主体名词变为复数  school boy—school boys( 男生 )  apple tree—apple trees( 苹果树 )  vegetable sandwich—vegetable sandwiches( 蔬菜三明治 )  girl friend—girl friends （女朋友）

28.  ◎如果没有主体名词，在最后一个名词上用复 数。  good-for-nothing—good-for-nothings （饭桶、无用的人）  three-year-old—three-year-olds （三岁的 孩子）  ◎由 man, woman 和另外一个名词构成的复合 名词，两个部分都要用复数。  man teacher—men teachers( 男教师 )  gentleman farmer—gentlemen farmers （乡绅）

29. Exercise  1. 顾客最后终于高兴了。  The customer was happy.  2. 这个顾客说这个薯条不够脆。  The customer said that the potato chips weren’t.  3. 乔治想让顾客高兴。  George wanted the customer. in the end crispy enough to make happy

30.  4. 薯条是一个名 Crum 的厨师发明的  The potato chips a cook Crum.  5. 昨天这个厨师往鱼上面撒了许多盐。  The lots of salt the fish yesterday. were invented called cook put on

31. 用所给词的正确形式填空。 1. The TV ____________ (invent) around 1927. 2. They are used for _______ (see) in the park. 3. This kite _________ (make) by Uncle Wang. 4. Tea ______________ (discover) a long time ago. 5. Our classroom _________________ (should clean) every day. was invented seeing was made was discovered should be cleaned