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(共22张PPT)
Unit 6 When was it invented？
Section B 3a-selfcheck
写作课
一、语言能力
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等。
二、学习能力
1.学会使用被动语态介绍某项发明。
2.掌握写作的谋篇布局，要点抓取等写作技能。提纲挈领，塑造作文框架来进行英语
写作，提升写作能力。
三、文化意识
鼓励学生热爱科学、勇于探索，发散思维，大胆想象，保持对科学发明探索的热爱。
四、思维品质
通过总结归纳本单元所学发明物以及拓展趣味小发明，开阔学生的眼界，培养学生
的创造精神。
What inventions have we learned
computer
Shoes with special heels
What inventions have we learned
car
television
telephone
zipper
Tea
Shoes with lights
Hot ice cream scoop
Potato chips
basketball
Lead in
How to introduce them 如何介绍这些发明
When was it invented
Who was it invented by
It was invented in/by…
Lead in
How to introduce them
What is it/are they used for
Why are they invented by
They are used for…
Lead in
How to introduce them
Who was it invented by
How was it invented
What are the influences
It was invented by ...
One day,...
·Problem: __________________________
·New invention: _____________________
·What it is used for: ___________________
a special pen
quickly taking notes in class
taking notes in class
3a
Think of something that you do not like to do. Then think of an invention that could help you. Make notes.
Can you think of more details about this pen
What does it look like
What is it made of？
How can it help you
What special things does it have
Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class.
3b
This special pen was invented by Liu Jie. It has three colors and is used for …
01
02
03
04
1
2
3
beginning
body
ending
who
when
why
what
appearance&
material&usage
how
feelings&
influence
object&person&
time&problem
what
This special pen was invented by me last year .
Students often have difficulty in taking notes.
That’s why I invented it.
It has three colors and looks like a common pen.It’s made of plastic and steel.It is used for taking notes quickly.It is very useful if you have a lot to write down. The pen can store(储存) a list of common words that you often use. When you are writing, you just need to write the short forms with the pen.If you press a button(按下按钮) on the pen, the related words will be written down. Besides, it makes it possible for me to record what the teacher say in class.
Without doubt,it makes a big difference to me, because I am not worried about taking notes . Don’t you think it’s cool Don’t miss it !
You can have it for only 20 dollars.
What invention is it
Who/When was it
invented(by)
Why was it invented
What does it look like
How can it work
What is it used for
Questions
What is it made of
What’s its influence
How much is it
This special pen was invented by me last year. Students often have difficulty in taking notes.That’s why I invented it.
It has three colors and looks like a common pen.It’s made of plastic and steel.It is used for taking notes quickly.It is very useful if you have a lot to write down. The pen can store(储存) a list of common words that you often use. When you are writing, you just need to write the short forms with the pen.If you press a button(按下按钮) on the pen, the related words will be written down. Besides, it makes it possible for me to record what the teacher say in class.
Without doubt,it makes a big difference to me,because I am not worried about taking notes. Don’t you think it’s cool Don’t miss it !
You can have it for only 20 dollars.
描述商品的外观，功能，
材料,影响用现在时。
描述商品何时，由谁发明要用过去时。
总写:某种发明重要性
分写：
被谁发明/特点
用途（至少三个）
好的用途与不好的
总写：合理利用
用到句型和词汇：
2.发明 has a great influence in our life.影响
1.发明 is the most important/useful invention in our life.(发明重要性和有用性）
用到句型和词汇：
4.用途：It is used for...
We can use 发明 to do sth.
1.It was invented by发明者.
2.It was invented in+时间.
3.It has...(特点）
5.However/But,不利的影响
用到句型和词汇：
we should use the great invention in a good way.
项目 标准 自我评价 同伴评价 教师评价
结构 （1-3分） 段落合理(3段)，结构完整
衔接自然
内容 （6-7分） 要点：1.发明物;发明人；时间；发明原因 2.外观；材料；用途；如何使用 3.你的使用感受&它对人们的影响
语言 （3-4分）
句法正确，语言优美,内容丰富
卷面 （1分） 书写工整
时态：
语态：
文体：
人称：
一般过去/现在时为主
说明文
第三人称为主，第一人称为辅
被动语态/主动语态
Post-writing
Complete the passage with the correct forms of the words in the box.
1
invent, doubt, mention, nearly, website, all of 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. 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
nearly
all of a sudden
doubt
websites
mention
Post-writing
Rewrite these sentences using the passive voice.
2
1. Someone stole my watch.
My watch was stolen (by someone)
2. They used five eggs to make this big cake.
Five eggs were used (by them) to make this big cake
3. When did they invent the personal computer
When was the personal computer invented
4. They asked us not to run in the hallway.
We were asked not to run in the hallway (by them)
5. Someone took the video back to the store.
The video was taken back to the store (by someone)
Post-writing
Find out information about an invention you would like to know more about and write sentences below.
3
Invention:___________
When: ______________
Who: _______________
Purpose:_____________
switch plug
(断路插头)
2012，
富超穎 (中国)
scooter carriage
(滑板婴儿车)
2007年
Valentin Vodev (奥地利)
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
explaining knowledge to me
It can be my favorite homework partner.
More inventions
Homework
1
2
必做题：背诵文章中的重要句子。
探究性作业：根据自我检查3中的信息，写一篇短文来介绍这项发明。
假如你有一项新发明,请以A special…为题介绍一下你的新发明，并将它推销给你的同学们。词数80-100。开头已给出，不计入总词数。
内容包括：1.发明物；发明人；时间；发明原因
2.外观；材料；用途；如何使用
3.你的使用感受&它对人们的影响
Thank you for listening

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