Unit 6When was it invented Section B 1a-1e课件（共34张ppt,含内嵌视频)人教版英语九年级全一册

Unit 6
When was it invented?
Section B (1a~1e)
新课导入
Let's enjoy a video
2
1
能熟悉并能正确运用本课时的重点单词和短语
能学习描述食物味道的形容词
3
能用一般过去时的被动语态讲述薯片的历史
预习检测
1. The potato chips have been in the paper bag for half an hour. They are not ______ any more.?
A.crispy B.sweet C.salty D.sour
2. Miss Green often has a light supper because she wants to be _________.?
A.heavy B.thin C.full D.empty
3. Billy has all kinds of different ideas. He is _________ to be a famous writer.?
A.enough creative B.creative enough
C.energetic enough D.enough energetic
A
B
B
4. —Mr. King _________ by the reporters yesterday.?
—He’s great! He helped so many disabled people.
A.was interviewed B.is interviewed
C.is interviewing D.interviewed
5. Light music after supper can make you _________.?
A.well B.happily
C.pleased D.sadly
C
A
知识梳理
New words
1. sour /?sa??(r)/ adj.酸的；有酸味的
This pear tastes a bit sour.
这梨带点酸味。
2. salty /?s??lti/ adj. 咸的
The dish is too salty.
菜太咸了。
3. crispy /?kr?spi/ adj.脆的；酥脆的
I ate a packet of chips, because it was very crispy.
我吃了一袋薯条，因为它非常的酥脆。
4. customer /?k?st?m?(r)/ n. 顾客;客户
Customer is God.
顾客就是上帝。
重点探究
能学习描述食物味道的形容词
Describe how the food tastes.
What are they called in English?
How do they taste?
They taste crispy(脆的).
They are called potato chips.
What are they called in English?
How do they taste?
They taste salty(咸的).
They are called salted duck eggs.
They taste hot(辣的).
They are called peppers.
What are they called in English?
How do they taste?
What is it called in English?
How does it taste?
It tastes sweet (甜的).
It is called ice cream.
What is it called in English?
How does it taste?
It tastes bitter (苦的).
It is called coffee.
The different tastes of food
sour
sweet
bitter
hot
salty
crispy
soft
...
酸的
甜的
苦的
辣的
咸的
脆的
软的
Pair work
两人一组，根据以下内容编对话。
A: What is it called in English?
B: How does it taste?
A: ...
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
salty
sour
sweet
salty
Group work
小组讨论，分别列举出脆的、酸的、咸的、甜的食物。
讨论后小组派一名代表写在黑板上，看哪一组写的最多。
小组展示
1 组
2 组
3 组
4 组
Can you name any crispy food?
fried peanuts
cookies?
biscuits
Can you name any sour food?
hawthorn fruit ?
dried?plum ?
strawberry
Can you name any salty food?
pickled vegetable
(泡菜)
pizza
Can you name any sweet food?
cake
candies
bread
1b. Write the name of a different food after each word.
sweet crispy salty sour
cookies?
biscuits
popcorn
potato chips
......
pizza
potato chips
French fries
pickle腌菜
......
grape
vinegar醋
orange
lemon
pickle腌菜
strawberry
......
apple
orange
cake
honey
candy
bread
......
活动小结
通过以上活动，我们学习了一些描述食物味道的形容词：
甜的_________ 脆的_________ 苦的_________
咸的_________ 酸的__________ 软的_________
辣的_________
sweet
crispy
salty
sour
bitter
soft
hot
用一般过去时的被动语态讲述薯片的历史
Do you like eating potato chips?
Do you know how to make potato chips?
重点探究
The two boys are talking about the history of potato chips.
Do you know how they were invented?
When were potato chips invented?
Who were potato chips invented by?
1c. Listen and circle T for true or F for false.
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 customer was happy in the end.
T F
T F
T F
T F
T F
T F
1. Potato chips were invented by mistake.
by mistake为介词短语，意为“无意中；错误地”,相当于accidentally。
e.g. 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。
2. v. 弄错; 误解
e.g. You mistook my meaning entirely.你完全误解了我的意思。
mistake ... for ... 错把……当成……
e.g. Don't mistake me for an American.
不要把我误会成美国人。
【拓展】mistake
1. n. 错误。make a mistake/make mistakes犯错误
e.g. I used to make mistakes in spelling．
我过去常常犯拼写错误。
2. The customer was happy in the end.
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”。
e.g. He is down at the end of the garden. 他在花园的尽头那边。
In the end we found the house. 最后，我们找到了这座房屋。
By the end of the war, the small work-shop had become a large factory
with 728 workers.
到战争结束时, 这个小铺子已经变成有728个工人的大厂了。
1d. 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
Pair work
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: 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: …
Let's retell the story.
Potato chips were invented by …
Once a customer was not… and…
George was in…and cut…
Then he cooked…
After that he put…on…
To his surprise, the customer… and told…about…
As a result, everyone was ordering…
In this way, one of the world’s favorite foods was invented. What a cool story!
活动小结
通过以上活动，我们学习了薯片的历史：
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
当堂检测
选词填空（每空仅限一词）。
1. Eating too much _______ food is bad for your teeth.
2. Why do so many __________ come to this supermarket to buy things?
3. If you aren’t careful enough, you’ll make some _______ in your homework.
4. Don’t add salt any more, it’s so _______ that we can’t eat.
5. The ice is too _______.It’s dangerous to skate on it.
sweet
customers
mistakes
salty
thin
salty , sweet, mistakes, thin, customer
课堂总结
Unit 6
Section B (1a~1e)
一些描述食物味道的形容词：
甜的_________ 脆的_________ 苦的_________
咸的_________ 酸的__________ 软的_________
辣的_________
薯片的历史：
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
sweet
crispy
salty
sour
bitter
soft
hot