【培优课堂】U6-Period 4 SectionB & Writing (课件)人教九年级Unit6 When was it invented

(共11张PPT)
Unit 6
When was it invented
(Section B & Writing)
Language goal: Talk about history of inventions;
Lead in
How do the cakes taste
Can you think of any other word to describe the taste
Interaction
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
1a
sweet crispy salty sour
crispy
sour
yummy
sweet
cold
delicious
salty
fresh
Do you like chips
Do you know how they were invented
Interaction
Listen and circle T for true or F or false.
1c
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 custom was happy in the end.
T F
T F
T F
T F
T F
T F
1853.
thin
unhappy/angry.
Interaction
Listen again. Complete the sentences.
1d
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
really salty
crispy
P140
Writing
3a. Think of something that you do not like to do. Then think of an
invention that could help you. Make notes.
Problem: ___________________________
New invention: _______________________
What it is used for:____________________
quickly makes notes in class
a special pen
3b. Imagine you are a business person. Write a description of your
new invention. Try to sell the invention to the class.
This special pen was invented by Liu Jie. It has three colors and is used for ...
Writing
Introduce a new invention.
Name
Time
Inventor
Use
What it looks like
How it works
Price
It is a ...
It was invented in.../last.../ ..weeks/months/years ago
It was invented by...
It is used for doing... / It can be used as...
It is made of... / It looks like.../ It has....
It is ...meters tall and weighs... kilos.
It can help... to do...
It’s easy/convenient for... to do...
It is... yuan/ dollars.
It costs you ... yuan/ dollars.
文体：说明文
人称：第三人称
时态：一般现在时为主
Writing
Introduce a new invention.
假如你是林睿。近期你的一项发明在你校科技竞赛中获得了一等奖。你的英国笔友得知这个消息后对你的发明很感兴趣，发来电子邮件询问你的发明。请根据以下提示，给他回一封电子邮件。
100词左右；
开头不计入 总词数
Dear Peter,
I am glad that you are interested in my invention. Let me introduce it to you....
Review
It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may ______ things which are nearly the same. It’s hard to tell who came up with the idea first. 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.
invent, doubt, mention, nearly, website, all of sudden
1. Complete the passage with the correct forms of the words in the box.
invent
all of a sudden
doubt
websites
mention
Review
2. Rewrite these sentences using the passive voice.
1. Someone stole my watch.
_________________________________
2. They used five eggs 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.
__________________________________
My watch was stolen (by someone).
When was the personal computer invented
Five eggs were used to make this big cake.
We were asked not to run in the hallway (by them).
The video was taken back to the store (by someone).