九年级全册Unit 6 When was it invented?课时4SectionB(1a-1e)课件(共18张PPT，内嵌视频)

(共18张PPT)
Section B (1a-1e)
Unit 6
When was it invented
课时教学目标
语言能力:
1.能够正确运用课时词汇和一般过去时的被动语态结构；
2.能够完成听说活动，了解薯片的发明史。
思维品质:
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；了解薯片的发明历史，认识小发明创造的大价值，提升批判性思维。
文化意识：
了解薯片的发明历史，认识小发明创造的大价值。
学习能力:
能够通过听前预测、抓关键词等方式获取主旨大意，通过小组合作、角色扮演等方式强化对目标语言的理解。
Enjoy a video.
Lead-in
How many kinds of food are mentioned
Four.
sweet
How do they taste
salty
sour
spicy
Different tastes
Lead-in
sweet
salty
sour
spicy
crispy
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
sweet ____________________________
crispy ____________________________
salty ____________________________
sour ____________________________
Write the names of different foods after each word.
banana
watermelon
potato chips
candy
cookie
biscuit
grape
cheese
salted fish
lemon
vinegar
Prediction
1c
What may the listening material be about
A. How potato chips were invented.
B. How to make potato chips.
C. How potato chips taste.
1c, 1d
1c
Listen and circle T for true or F for false.
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
错误地；无意中
n. 顾客；客户
adj./adv. enough 足够……
make sb. +adj. 使某人……
最终
Key points
I picked up your bag ________ ________(错误地).
The boy thinks the ice cream is not______ _______ (足
够甜).
3. With the teacher’s help, he passed the exam ___ ___ ____
(最终).
4. Jim tried his best to ______ his little sister ______(使……开
心).
活学活用
by mistake
sweet enough
make happy
in the end
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
Complete the mind map.
When: in 1853
Where: in a _________
Who: a _____called George Crum
How: A customer came into a restaurant. He _______ fried
potatoes.When the potatoes came, they were_____
back to the kitchen because they were too______. But
this made the cook ______, so he cut the potatoes
really thin and cooked them for a long time until they were
crispy, and he ______ lots of salt on them, so the
potatoes tasted really salty. He thought the customer
would _____ them.
Result:The customer______ them so much that he _______
for more and told others.
The
history
of
potato
chips
restaurant
cook
sent
thick
angry
ordered
put
hate
loved
asked
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:
It’s said that they were invented by a cook
called George Crum.
When were they invented
They were invented in 1853.
1e
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
Why was it an accident
Well, one day, a customer ordered a plate of fried potatoes. But when the potatoes came, he said they were cut too thick
and sent them back to
the kitchen.
1e
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
Then what happened
George cut the potatoes really, really thin and then cooked them for a long time until they were crispy. He put lots of salt on them so they were
really salty.
1e
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
Summary
Listening
and
speaking
Words and phrases
Key sentences
Listening tips
crispy, salty, sour, by mistake, customer
Potato chips were invented by mistake.
Predict what the listening material may be about according to the illustration and the context before listening.
They were invented in 1853.
Potato chips were invented by a cook called George Crum.
Homework
实践性作业
What kind of food is there in your hometown Please do some research on it and sort out the history of its invention.
1
2