(共35张PPT)
Unit 6
When was it invented？
人教新目标版 九年级上
SectionB 1a-1e公开课
Learning objectives
1.Functions: Talk about the history of potato chips.
2.Grammar: passive voice (past tense)
3.Curriculum words: crispy, salty, sour, customer
4.Useful expressions: by mistake, in the end
5.Sentences:
①Potato chips were invented by mistake.
②The customer said they were not salty enough.
Warming up
Do you like potato chips
How do they taste
They taste crispy and salty.
[ krispi]
[ s lti]
Presentation
How do they taste
They taste sour.
[ sau ]
How do they taste
They taste sweet.
How do they taste
They taste hot/spicy.
How do they taste
It tastes salty.
How does it taste
It tastes bitter.
[ bit ]
Different food has different taste.
They taste…
sour
sweet
bitter
spicy
salty
crispy
Words to describe the food
酸的
甜的
苦的
辣的
咸的
脆的
新鲜的
软的
硬的
多汁的
健康的
厚的
薄的
好吃的
sour
sweet
bitter
hot/spicy
salty
crispy
fresh
soft
hard
juicy
healthy
thick
thin
delicious
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
1a
sweet crispy salty sour
________ __________ ______ ________
crispy
salty
sour
sweet
salty
Write the name of a different food after each word.
1b
sweet crispy salty sour
apple;
orange;
cake;
honey;
candy;
biscuit
......
French fries;
lettuce;
popcorn;
potato chips;
......
pizza;
potato chips;
salt;
salty fish
pickle腌菜
......
grape;
vinegar醋;
orange;
lemon;
pickle腌菜;
strawberry
......
Using adjectives to make conversations.
salty 咸的,含盐的 sweet 甜的 crispy 易碎的,脆的
sour 酸的,酸味的 bitter 苦的 hot 辣的
awful 可怕的 nice 好的 delicious 美味的
A: What food is sour
B: I think pineapples are sour. What food is crispy
A: … …
Pairwork
Pre-listening
What are they doing
They are talking about potato chips.
Do you know how potato chips were invented
Listen and circle T for true or F or false.
1c
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 custom was happy in the end.
T F
T F
T F
T F
T F
T F
n. 顾客
无意中
最后，终于
Language points
by mistake为介词短语，意为“无意中；错误地”,相当于accidentally。
【语境领悟】I missed the school bus by mistake this morning.
今天早上我无意中错过了校车。
I took your pen by mistake. 我错拿了你的钢笔。
mistake 1. n. 错误。make a mistake/make mistakes犯错误
I used to make mistakes in spelling．我过去常常犯拼写错误。
2. v. 弄错; 误解
You mistook my meaning entirely.你完全误解了我的意思。
mistake ... for ... 错把……当成……
Don't mistake me for an American.不要把我误会成美国人。
单词enough修饰名词时，不需要倒装。
如：我有足够的钱。I have enough money.
【拓展】
enough其修饰形容词、副词要倒装。
如：He wrote carefully enough to get the award of the competition.
enough常可以和词组so-that，too-to转换。
他跑得不够快，赶不上其他人了。
He didn’t run fast enough to catch up with the others.
=He ran so slowly that he couldn’t catch up with the others.
=He ran too slowly to catch up with the others.
in the end 最后，终于 (相当于finally 或 at last)
【拓展】
at the end of可以指时间，也可指处所，意为“在……尽头，在……结束时”。
by the end常和of相连，用于指时间，意为“到……底(末)为止”
【学以致用】1.他在花园的尽头的那边。
He is down _______________ the garden.
2.最后，我们找到了这座房屋。
______________ we found the house.
3.到战争结束时, 这个小铺子已经变成有728个工人的大厂了。
_____________________, the small work-shop had become a large factory with 728 workers.
at the end of
In the end
By the end of the war
Listen again Complete the sentences.
1d
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
Listen again and fill in the card.
Who invented:__________
When invented :__________
How invented :__________
Process:_______________________________________________________________________________________________________________________
George Crum
1853
by mistake
cut the potatoes really, really thin
cooked them for a long time until they were crispy
put lots of salt on them so they were really salty
Listen again and complete.
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
_______________ George Crum.
Boy 2: When was that
Boy 1: Oh, it was____________ .
Boy 2: So, why was it ____________
Boy 1: Well, one day a customer came in the restaurant where George worked.He ordered __________________ .When the potato came, he said they were cut __________ and sent them back to the kitchen.
by mistake
by a cook called
back in 1853
an accident
a plate of fried potatoes
too thick
追溯到1853年
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___________________ . And he________________ them so they were really salty . He thought the customer would hate them.
Boy 2: And
Boy 1: And the customer loved them and ________________ . He told the other customers about them, and soon everyone was ordering thinly-cut, ____________potato chips.
Boy 2: And we're still eating them today. What a cool story!
Boy 1: Yeah.
until they were crispy
put lots of salt on
asked for more
crispy, salty
1. Who invented potato chips
2. When were they invented
3. What did the custom order at the restaurant
They were invented by a cook called George Crum.
In 1853.
He ordered a plate of fried potatoes.
Answer the questions.
5. How did George cook the potatoes then
4. What did the custom think of the potato chips George cooked at first
He cut the potatoes really, really thin and 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 they were cut too thick.
Let's read and check your answers.
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 in the restaurant where George worked.He ordered a plate of fried potatoes.When the potato came, he said they were cut 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 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!
Boy 1: Yeah.
(被)切得很薄的
Who
When
Do you know potato chips
were invented
They were invented by a
______called George Crum
in .
by mistake
cook
1853
1
Retell the story
2
One day a customer _______a plate of fried potatoes. When they came ,he said they________ too thick and sent them back to the kitchen.
ordered
were cut
What happened
3
What happened
George was so angry that he cut the potatoes really really ,and cooked them for a long time until they were . Then he put lots of salt on them, so it tasted . He thought the customer would hate them.
thin
crispy
salty
4
However, the customer them and . And we’re still
eating them today.
loved
asked for more
What happened
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
1e
A: Did you know potato chips were invented by mistake
B: Wow, I didn’t know that. Who invented them
A: George Crum did. It was invented by the cook.
B: How did he invent them A: …
B: Why did he do it like that A: …
B: What’s the result A: …
If we are good at observing and thinking,everyone can be inventors in our lives.
如果我们善于观察，勤于思考，
每个人都能成为生活中的发明家。
https://www.21cnjy.com/help/help_extract.php
