Unit 6 When was it invented? SectionB-1 课件（共25张PPT）

(共28张PPT)
Unit 6
When was it invented
Section B (1a-1e)
学习目标
Key words & phrases:
crispy, salty, sour, by mistake, customer
Key sentences:
1.—Did you know potato chips were
invented by mistake
—Wow, I didn’t know that.
Who invented them
What did they eat
Ice-cream.
What did the big dog think of the ice-cream
Sweet, cool, and delicious!
Lead in
How will the bread and snack taste
Sweet and delicious.
Can you think of any other flavor
Salty, hot, bitter, sour, fresh …
sweet甜的
crispy脆的
salty咸的
How do they taste
hot辣的
bitter苦的
red bayberries
peppers
sour酸的
Presentation
cookies
crispy
lemons
sour
sweet
candy
salty
ice cream
tea
delicious
nice
awful
prune
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
1a
______ ______ ______ ______
______ ______ ______ ______
crispy
sour
salty
sweet
cold
delicious
sweet crispy salty sour
salty
adj. 脆的；酥脆的
adj. 酸的
adj. 咸的
fresh
sweet ____________________________
crispy ____________________________
salty ____________________________
sour ____________________________
Write the name of a different food after each word.
banana
apple
Beijing Duck
potato chips
grape
candy
cracker
cookie
salt
salted fish
lemon
1b
1. Potato chips were invented by mistake.
2. They were invented in 1863.
3. The customer thought the potatoes were not thin enough.
Listen and circle T for true or F or false.
T F
T F
T F
1c
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
n. 顾客
What are needed
The potatoes are cut into slices.
The slices are cooked in the pan.
The pepper and tomatoes are sprinkled.
potato chips
Who were potato chips invented by
When were potato chips invented
George Crum
chef
1. Who invented potato chips
They were invented by a cook called George Crum.
2. When were they invented
In 1853.
Listen and answer the questions.
3. What did the custom order at the restaurant
He ordered a plate of fried potatoes.
5. How did George cook the potatoes then
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.
4. What did the custom think of the potato chips George cooked at first
He thought they were cut too thick.
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 ____.
Listen again. Complete the sentences.
were invented
1853
1d
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 __________.
thin
really salty
crispy
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
1e
Did you know potato chips were invented by mistake
Wow, I didn’t know that. Who invented them
It’s said that they were invented by a cook called George Crum.
When was that
Oh, it was back in 1853.
Why was it an accident
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.
So what happened
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.
And then
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.
Summary
Learned the history of potato chips.
Learned how to describe the taste of food.
Homework
Memorize the new words.
Do the exercises in students’ book.
Preview the passage in 2b.