(共28张PPT)
人教新目标版 九年级全册
Unit 6 When was it invented
Section B 1a-1e
Learning objectives
Knowledge objectives:
1. 熟练掌握以下词汇和短语
crispy, salty, sour, by mistake, customer, in the end, for a long time.
2. 熟练掌握以下句型
1. Hey, did you know that potato chips were invented by mistake .
2. he put lots of salt on them so they were really salty.
3. The customer was happy in the end.
Skill objectives:
1. 能掌握本课时出现的新词汇,观看短视频,了解不同种类的食物味道。
2. 能够在谈论美食发明的情境中正确运用新单词和被动语态的一般过去式结构,学习听力策略快速完成听力;通过小组合作来锻炼英语口语的能力。
3. 能以角色扮演的形式，用正确的语音语调运用所学句型进行对话。
Emotional objectives:
了解薯片的发明历史，意识到小发明也能创造大大的价值，同时养成健康饮食的好习惯。
Thinking quality objectives:
通过听力活动练习，能精准提取关键信息，锻炼思维的逻辑性。
Warm up
Let’s watch a video and see how many flavours/tastes do you know
Free talk
How many flavours/tastes do you know
flavours/tastes
Sweet
Salty
Sour
Crisp
Bitter
Spicy
Sour[ sa (r)]
adj. 酸的
Bitter[ b t (r)]
adj. 苦的
Spicy[ spa si]
adj. 辣的
Salty[ s lti]
adj. 咸的
Crisp[kr sp]
adj. 脆的
Sweet [swi t]
adj. 甜的
How do they taste
Presentation
sour酸的
crispy脆的 salty咸的
What food would you prefer to eat
sweet甜的
spicy/hot辣的
sweet甜的
bitter苦的
salty咸的
spicy/hot辣的
crunchy脆的
crunchy[ kr nt i]
adj. 硬脆的
sour酸的
How do they taste
What food would you prefer to eat
sweet甜的
sweet甜的sour酸的
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.
sweet crispy salty sour
__________ ____________ __________ ____________
__________ ____________ __________ ____________
crispy
sour
salty
sweet
salty
1b
Write the name of a different food after each word.
sweet ____________________________
crispy ____________________________
salty ____________________________
sour ____________________________
banana
apple
Beijing Duck
potato chips
grape
candy…
cracker
cookie…
salt
salted fish…
lemon
vinegar…
Talk about the food with your partner.
I think pineapples are sour. What food is crispy
What food is sour
…
Do you know how potato chips were invented
Let’s watch a video.
1c
Listen and circle T for true or F for false.
顾客；客户
错误地；无意中
最终；最后
Who were potato chips invented by
George Crum
[d d kr m]
乔治·克鲁姆
chef(厨师)
potato chips
When were potato chips invented
In 1853.
1、What are needed
How to make potato chips
2、The potatoes are cut into slices.
3、The slices are cooked in the pan.
4、The pepper and tomatoes are sprinkled(撒).
1d
Listen again. Complete the sentences.
were invented
1853
thin
crispy
really salty
Listen again, answer the following 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 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.
Tapescripts
Listen and read abloud on P140.
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.
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!
Fill in the mind map, then retell.
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.
Post-listening
1e
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
A: Did you know potato chips were invented by
mistake
B: Wow, I didn’t know that. Who invented them
A: ...
Pair work
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.
Language points
1. Potato chips were invented by mistake.（教材P45 1c）
by mistake为介词短语，意为“无意中；错误地”,相当于accidentally。
例如：今天早上我无意中错过了校车。
I missed the school bus by mistake this morning.
我错拿了你的钢笔。
I took your pen by mistake.
【拓展】mistake还可以构成短语：make a mistake/make mistakes犯错误； mistake…for… 把……错认成……。
例如：别再出错了。
Don’t make mistakes any more.
我把她错认成我们的英语老师了。
I mistook her for our English teacher.
2. The customer was happy in the end.（教材P45 1c）
(1) in the end 意为“后来，最后，终于”；at the end of ... 意为“在……末” ；by the end of ... 意为“到……末为止”。
如：这个月月末我们将会开个会。
At the end of this month we’ll have a meeting.
到去年末为止我们已经做了十架飞机了。
By the end of last year we’ve made ten planes.
(2) in the end 用一个单词表达可以是finally，用一个短语表达可以用at last 。
如：最后他赢了。
He won in the end.
He won finally.
He won at last.
Homework
1. Do the exercises in students’ book.
2. Practice the conversation on Page 45, 1e.
3. Preview the passage in 2b.
谢谢
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