Unit6 When was it invented SectionB 1a-1e听说课件＋音频(共18张PPT) 人教版九年级全册

(共18张PPT)
Section B（1a-1e）
sour
[ sa (r)] 酸的
-How do they taste
-They taste…
lemons
What are they called in English
sweet 甜的
-How does it taste
-It tastes…
ice cream
-How does it taste
-It tastes…
bitter 苦的
a bottle of beer 一瓶啤酒
-How do they taste
-They taste…
peppers
hot 辣的
-How do they taste
-They taste…
salty duck eggs
salty
[ s lti] 咸的
crispy and salty
-How do they taste
-They taste…
potato chips
[ kr spi] 酥脆的
Do you like Why or why not
potato chips
Do you know the history of potato chips Let’s listen!
2024/9/30
T F
T F
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
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
invent doubt mention nearly website all of a sudden
It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may __________ things which are __________ the same. It’s hard to tell who came up with the idea first.
invent
nearly
Self CheckSelf Check
1.Complete the passage with the correct form of the words in the box.
Some inventions can also lead to other inventions ______________. So some people _______ whether the inventor came up with the idea himself or herself. They think that the inventor used someone else’s idea to create his or her invention. That is why books or ________ usually _________ more than one inventor when giving information about inventions.
all of a sudden
doubt
websites
mention
1. Someone stole my watch.
2. They used five eggs to make this big cake.
2.Rewrite these sentences using the passive voice.
My watch was stolen (by someone).
Five eggs were used to make this big cake.
3. When did they invent the personal computer
4. They asked us not to run in the hallway.
5. Someone took the video back to the store.
When was the personal computer invented
We were asked not to run in the hallway.
The video was taken back to the store (by someone).
达标练习
用所给动词的适当形式填空。
1. This kind of TV set (make ) in that factory .
2. The Great wall 　(know) to the people all over the word
3.They use knives (cut )things.
4.My clothes (wash ) once a week .
is made
is known
are washed
to cut
5. Wood can be used for______ paper.
A. making B. to make
C. made D. make
6．-Do you think potato chips
were invented _____
–No, I don’t thing so.
A. by mistakes B. by mistake
C. for mistake D. with mistakes
A
B
Please eat more healthy food！
多吃健康食品
Thank you