(共23张PPT)
人教九上英语同步精品课件
人教版九年级上册
Grammar Focus
2024秋人教九全英语精彩课堂精品课件
Unit 6 When was it invented
Section B 1a-1e
Key words & phrases:
sour, salty, crispy, customer, by mistake, in the end
Key sentences:
Potato chips were invented by mistake.
The customer was happy in the end.
Functions:
To give students listening and speaking practice.
Learning Objectives
Revision
一般过去时的被动语态
主语+ wasn’t/ weren’t及物
动词的过去分词(+by）
肯定句:
Was/Were +主语+及物动词
的过去分词（+by）
主语+ was/were +及物动词的
过去分词（+by）
否定句:
一般
疑问句：
结构：
主动语态 被动语态
特殊
疑问句：
特殊疑问词+ was/were+
主语+过去分词
It’s an electric machine that looks like a box.
Guessing game
It’s used for storing (存放) food.
It’s used for keeping the food fresh .
fridge
The fridge is a helpful invention that keeps the
food fresh. If there’s no fridge, the taste (n.味道)
of the food will go bad easily, and the food will taste (v.尝起来) ter rible.
Presentation
sour
sweet
bitter
spicy
salty
crispy
Presentation
--How do they taste --They taste…
expensive, convenient, safe
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
salty
sour
________________
________________
________________
________________
sweet
salty
1b
Write the name of a different food after each word.
sweet ____________________________
crispy ____________________________
salty ____________________________
sour ____________________________
banana
apple
chicken soup
potato chips
grape
candy
biscuit
cookie
salt
salted fish
lemon
Prediction
What are they doing
They are talking about potato chips.
Do you know how potato chips were invented
What do we know about potato chips according to the video
1c
Listen and circle T for true or F for false.
While-listening
1. Potato chips were invented by mistake. T F
2. They were invented in 1863. T F
3. The customer thought the potatoes were not thin enough. T F
4. The customer said they were not salty enough. T F
5. George wanted to make the customer happy. T F
6. The customer was happy in the end. T F
错误的；无意中
n. 顾客；客户
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
A: Did you know potato chips were invented by mistake
B: Wow, I didn’t know that. Who invented them
A: It says that they were invented by a cook called George Crum.
B: When were they invented
A: …
B: How were they invented
A: …
Post-listening
1e
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
Ready
Go!
Set
Role play
Junk food isn’t good for our health, although it tastes good. Try to eat less this kind of food, or you will get fatter.
[观察1] The customer was happy in the end.
[探究] in the end 意为 ______________
in the end 表示经过许多困难、变化、挫折、或捉摸
不定的情况之后，某事才发生，意为“最后；终于”
相当于 __________ 和___________.
在老师的帮助下，他终于通过了考试。
With the teacher’s help, he passed the exam ___________.
最后；终于
at last
finally
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”
【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
Exercises
1. 抱歉，我误拿了你的雨伞。
Sorry, I took your umbrella______ _________ .
2. 我认为这汤不够咸。
I think the soup_____ _____ _______ .
3. 他最终同意了我的计划。
She agreed on my plan____ _____ _____.
by mistake
isn’t salty enough
in the end
1.Required：
1. Write something about foods with “be invented by / be
invented in”.
2. Make a conversation about potato chips.
2.Optional：
1.Look for the information about other famous foods.
2. Make a mini writing about your favorite food.
Homework
谢谢
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