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(共35张PPT)
Section B 1a~1e
Unit 6 When was it invented
Unit 6 When was it invented
01
Learning
goals
03
Listening&
Speaking
05
Homework
02
Warming
up
04
Exercise
A
Pre-listening
B
While-listening
C
Post-listening
Learning goals
Functions: Talk about the history of potato chips.
Grammar: passive voice (past tense)
Curriculum words: crispy, salty, sour, customer
Useful expressions: by mistake, in the end
Sentences:
①Potato chips were invented by mistake.
②The customer said they were not salty enough.
Warming up
Ice-cream.
How does it taste
Sweet, cool and delicious!
What is it
How do the bread and snacks taste
Sweet and delicious.
What are they
Bread and snacks.
Warming up
Can you think of any other flavor (味道)
Salty, hot, bitter, sour, fresh…
Warming up
Sweet food
Warming up
Salty food
adj. 咸的
Warming up
Sour food
adj. 酸的；有酸味的
Warming up
Crispy food
adj. 脆的；酥脆的
Warming up
Pre-listening
1a
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
______ ______ ______ ______
______ ______ ______ ______
crispy
sour
salty
sweet
salty
sweet crispy salty sour
Pre-listening
1a
Write the name of a different food after each word.
sweet __________________________________
crispy __________________________________
salty __________________________________
sour __________________________________
banana
apple
Beijing duck
potato chips
grape
candy
cookie
cheese
salted fish
lemon
Pre-listening
1b
Listen and circle T for true or F for false.
While-listening
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
放音频1c
1c
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
really salty
While-listening
放音频1c
1d
Listen again and answer the questions.
1. Who invented potato chips
They were invented by a cook called George Crum.
2. When were they invented
In 1853.
3. What did the customer order at the restaurant
He ordered a plate of fried potatoes.
While-listening
放音频1c
1d
Listen again and answer the questions.
5. How did George cook the potatoes then
He cut the potatoes really, really thin, and he cooked them for a long time until they were crispy. And he put lots of salt on them so they were really salty.
4. What did the customer think of the potato chips George cooked at
first
He thought they were cut too thick.
While-listening
1d
While-listening
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 cook 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 into the restaurant where George worked. He
ordered a plate of fried potatoes. When the potatoes came, he said they were cut
too thick and sent them back to the kitchen.
Tapescript
1c
1d
While-listening
Boy 2: So what happened
Boy 1: Well, George was angry, so he cut thepotatoes really, really thin, and he cooked
them for a long time until they were crispy. And he put lots of salt on them so
they were really salty. 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!
Did you know potato chips were invented by mistake
Wow, I didn’t know that. Who invented them
Post-listening
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
...
1e
Retell the story.
It’s said that they were invented by a cook called George Crum.
Post-listening
Retell the story.
One day, a customer ordered a plate of fried potatoes. George cooked them for him. When the potatoes came, he said they were cut too thick and sent them back to the kitchen.
Post-listening
Retell the story.
George was angry, so he cut the potatoes really, really thin, and he cooked them for a long time until they were crispy. And he put lots of salt on them so they were really salty. He thought the customer would hate them.
Post-listening
Retell the story.
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.
Post-listening
拓展阅读
How sandwich was invented
It is said that the sandwich was invented in England in the 18th century by John Montagu, 4th Earl of Sandwich.
He asked his servants to prepare a chunk (大块) of meat between two slices of bread, so that he could carry on gambling without stopping to eat.
Post-listening
Language points
1. Potato chips were invented by mistake.（教材P45 1c）
by mistake 错误地；无意中
Point
eg: I took his backpack by mistake. 我错拿了他的书包。
Tom put salt in his cup of tea by mistake.
汤姆错把盐放进了他的茶杯里。
Post-listening
Language points
1. Potato chips were invented by mistake.（教材P45 1c）
mistake n. 错误；失误 v.弄错;误解
Point
mistake在此处作名词，意为“错误；失误”。
eg: I used to make mistakes in spelling. 我过去常常犯拼写方面的错误。
mistake还可作动词，意为“弄错；误解 ”。
eg: You mistook my meaning completely. 你完全误解了我的意思。
mistake... for... 错把……当成……
eg: Don’t mistake me for an American. 不要错把我当成美国人。
Post-listening
Language points
2. The customer thought the potatoes were not thin enough. (教材P45 1c)
enough adj. 充足的；足够的 adv. 充足地；足够地
Point
enough修饰名词时，不需要倒装。
eg: I have enough money. 我有足够的钱。
There isn’t enough food in the dinning hall. 餐厅里没有足够的食物。
其修饰形容词、副词时，需要倒装。
eg: He wrote carefully enough to get the award of the competition.
他写得很仔细，赢得了比赛的奖项。
Post-listening
Language points
3.The customer was happy in the end. （教材P45 1c）
in the end 后来，最后，终于
Point
in the end = finally = at last 后来，最后，终于
at the end of... 在……末
by the end of... 到……末为止
eg: At the end of this month we’ll have a meeting.
在这个月月末我们将会开个会。
By the end of last year,we had learned 2,000 words.
到去年年末为止我们已经学了两千个单词。
Post-listening
Exercise
一、用方框中所给单词或短语的适当形式填空。
1.The good news us happy yesterday.
2. , they crossed the mountains and got to the village.
3.I took your textbook at school.
4.Do you know the of potato chips
5.John’s parents always think he doesn’t study hard .
in the end, enough, by mistake, make, history
made
In the end
by mistake
history
enough
二、翻译句子。
1. 我们终于在天黑之前到达了。
We arrived there _____ _____ _____ before it was dark.
2. 这个顾客说这些薯条不够脆。
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
happy
to make
crispy enough
Exercise
二、翻译句子。
4.薯条是一个名字叫Crum的厨师发明的。
The potato chips_____ _________ by 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.
called
cook put
were invented
on
Exercise
finally
making mistakes
Exercise
1.（2020云南）My father (final) stopped smoking.
2.（2021湖北随州）好的学习者不害怕犯错。
Good learners are not afraid of __________ _________.
3. (2021广西百色)Paper, one of the four greatest inventions in
ancient China, ________by Cai Lun about 2, 000 years ago.
A. was invented B. is invented
C. were invented D. are invented
Homework
Memorize the new words and phrases.
Do the exercises in students’ book.
Unit 6 When was it invented
Thank You

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