(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. 学习并掌握词汇crispy, salty, sour, customer,by mistake等；
2.能听懂并正确运用新单词和被动语态复述薯片的发明。
3.了解薯片的发明历史，意识到身边处处有发明，小发明也能创造大大的价值；
4.知晓本地美食，树立文化自信。
Let’s go shopping!
We bought pears, watermelons and ice-cream. How does the food taste
Sweet.
I bought salted duck
eggs, bacon and salt. How does the food taste
Salty.
/ s lti/
I bought oranges,
lemons and vinegar. How does the food taste
Sour.
/ sa (r)/
I bought potato chips.
How does the food taste
Crispy.
/ kr spi/
I bought spicy gluten
and chili. How does the
food taste
Spicy.
/ spa si/
Different food has different taste. Which taste do you like best
sour
crispy
spicy
salty
bitter
sweet
Game time!
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
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
Words to describe the food
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
......
Do you like potato chips
Do you know how potato chips were invented
Before listening, let’s enjoy the video.
Look at the picture and read the sentences in 1c.
Then think about:
1. What are the two boys talking about
2. Where does this story take place
May be restaurant.
Potato chips
Pre-listening
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。
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 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
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
1
2
The potatoes are cut very thin.
4
3
They are cooked for a long time.
Some salt is put on them.
They become
crispy.
Retell the steps.
Do you know how to make potato chips
The History of Potato Chips
When
Who
How
Result
Why
1853
George Crum
The customer said the fried potatoes were cut too thick and sent them back to the kitchen. George was angry.
1. Cut the potatoes really, really thin.
2. Cooked them for a long time until they were crispy.
3. Put lots of salt on them.
The customer loved them and asked for more.
Fill in the mind map, then retell.
Do you know potato chips
were invented
They were invented by a
______called George Crum
in .
by mistake
cook
1853
1
Retell the story
Who
When
2
One day a customer _______a plate of fried potatoes. When they came, he said they________ too ______ and sent them back to the kitchen.
ordered
were cut
What
happened
thick
3
George was so angry that he cut the potatoes 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
What
happened
4
However, the customer them and . And we’re still eating them today.
loved
asked for more
What
happened
How much do you know about potato chips
Potato chips by many people.
It that potato chips are more than 150 years old.
Even today potato chips still by most people.
They by accident in 1853.
The inventor George Crum.
One day, he to serve fried potatoes by a customer.
When the potatoes came, the customer thought they too thick.
The potatoes for a long time until they were crispy.
some salt ________on potato chips.
are loved
is said
are
enjoyed
were invented
was called
was asked
were cut
were cooked
is put
Who invented potato chips
How to make potato chips
When were they invited
They were invented by….
They were invented in…
First, …
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
1e
Creative inventions
Creative invention
Creative inventions come from small things in life.
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