(共33张PPT)
Unit6 When was it invented ？
人教新目标版 九年级上
Section B3a-Selfcheck
写作优质公开课课件
Learning objectives
正确使用有关词汇和被动语态结构，
介绍发明物品的背景和用途。
通过头脑风暴，收集写作素材；能够利用思维导图，提纲挈领塑造作文框架来进行英语写作，提升写作能力。
通过讨论，小组合作积极探究，发散思维，大胆想象，保持对科学发明探索的热爱。
Warming up
Revision
What inventions have been mentioned in this unit
When was it invented
Who was it invented by
It was invented in…
It was invented by…
Revision
What are they used for
They are used for…
Revision
Where can we see it
We can see it everywhere.
Revision
How was it invented
What are the influences of it
One day, …
It was brought to…
The popularity of it …
Many people like it…
Revision
How does it work
What about its development and the influences
Presentation
How do we introduce an invention
invention
What invention is it
Who was it invented by
When and where was it invented
Why was it invented
What is it used for
......
Summary
In fact, inventions are everywhere in our life. They are
useful and helpful .
What problems do you meet in the life Can you invent something to solve
I am not able to take notes quickly in class.
It’s very hard for me to get up early.
Can you invent something new to solve those difficulties
I can’t do
homework correctly.
Problem: quickly taking notes in class
New invention: a special pen
What it is used for:
taking notes quickly
List something you don't like to do in your daily life or some problems you have in your daily life.
3a
2. Problem: ___________________________
New invention: ______________________
What it is used for: __________________
3. Problem: ___________________________
New invention: ______________________
What it is used for:
____________________________________
____________________________________
a special clock
getting up early
waking me up
doing homework
a robot
doing homework with me
It can be my favorite homework partner.
Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class.
3b
Try to tell us the following information:
What is it made of
What is it used for
What does it look like
Where or when can it be used
How much will it cost
This special pen was invented by Liu Jie. It has three colors and is used for
________________________________________________________________________________________________
_________________________________________________
__________________________________________________________________________________________________.
Write it like this:
What is it made of
What special thing does it have
What does it look like
How can it help you
…
Look at my answer!
It is made of metal. It looks like a carrot. It has a microchip(芯片). The microchip can store a list of common words. These words are used very often. When we are writing, we just need to write the short forms of those words and press a button. The short forms will change into actual words. Besides, it can also turn our voice into actual words. I invent it because I want to take notes quickly in class.
It is made of a special material that is friendly to the environment. It looks like a yellow carrot. It has a special microchip(芯片). The microchip can store a list of common words. These words are used very often. When we are writing, we just need to write the short forms of those words and press a button. The short forms will change into actual words. Besides, it can also turn our voice into actual words. I invent it because I want to take notes quickly in class.
If I want to write a passage to introduce the new invention, what else do I need to add
beginning
end
Tips: 添加连词让句子连贯：
and,or,so,but,first,
then,finaly,what's more,
not only...but also...
...so...that...
How to descript an invention
引出话题
介绍发明
产品的发展
In our daily life，the problems are….
I think it is going to ...
原材料:it is made of…
外形：it was like…..
用途:we can use it to ….
Para .1
Para .2
Para .3
Who invented it
When was it invented
What was it used for
Beginning
…is invented by…
It is believed that the first…is invented by…in…
It is invented when sb was…
Sb.al always have difficulty in doing sth., so he invented this.
It is used for…
What is made of
What does it look like
What special things does it have
Body
It is made of…
It looks like…
It has…
Not only can it help you…, but also it can help you…
How can it help you
Writing
What is your feeling
The popularity of this product
How does it make a difference to the world
End
I have never worried about my…, since I had this….
Nowadays, it has become so popular in the world and a lot of people like to used it.
It has made great contribution to the progress of the society.
Writing
确立篇章
话题引出
（Beginning）
↓
↓
↓
介绍发明
（Main Body）
↓
↓
表达想法
（Ending）
The Greatest Invention
There have been many great inventions that have changed our lives. But the light bulb is the greatest invention in my mind.
It was invented in 1854.It was invented by Thomas Edison. And it is used for seeing in the dark. It's made of glass and looks like a ball.It has brought bright to the world since it was invented. With light bulb, people can do more things than before.
I think it’s a great /useful/invention. I believe that it is a small invention that changed the world. What's more,Thomas Edison was a great inventor. I also want to be an inventor like him.
【参考范文】
Key points Check
Good Structure 3’
Good sentences 3’
Correct grammar/spelling 5’
Good logic 2’
Tidy writing 2’
互评
Check List
1 Complete the passage with the correct forms of the
words in the box.
invent doubt mention 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 nearly the same. It’s hard to tell who came up with the idea first. Some inventions can also lead to other inventions
invent
Self Check
nearly adv.几乎；差不多；将近
______________. 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.
__________________________________
3. When did they invent the personal computer
__________________________________
__________________________________
My watch was stolen (by someone).
When was the personal computer invented
Five eggs were used to make this big cake.
2 Rewrite these sentences using the passive voice.
4. They asked us not to run in the hallway.
__________________________________
__________________________________
5. Someone took the video back to the store.
__________________________________
__________________________________
The video was taken back to the store (by someone).
We were asked not to run in the hallway (by them).
Invention: _________________________
When: _________________________
Who: _________________________
Purpose: _________________________
3. Find out information about an invention you would like to know more about and write sentences below.
假如你发明的“飞行单车”在学校科技节中获奖，被推荐参加一个国际青少年科技展览。请用英语介绍你的发明， 内容包括下图1-4项。
Homework
注意：
（1）参考词汇：轮子：wheel 太阳能：solar power
（2）词数80左右（文章的开头已给出，不计入词数）。
（3）不得透露学校、姓名等任何个人信息。
My invention is a flying bike. ____________________________________________
________________________________________________________________________________________________________________________________________________________________________________________________________
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