Unit 6 When was it invented? SectionB 3a-self check课件【人教（2024秋）九全英语】

(共22张PPT)
Unit 6 When was it invented
Unit 6 When was it invented
Unit 6 When was it invented
Period 6 Section B 3a-self check
What inventions have been mentioned in this unit
Let’s talk!
What is the invention
What is it used for
Who was it invented by
When was it invented
Where was it invented
Why was it invented
How was it invented
They are useful and helpful and they make our life much easier and much more convenient.
What do you think of these inventions
How to introduce an invention
Who was it invented
How was it invented
When and where was it invented by
What is it used for
What are the influences of it
What is it made of
How does
it work
......
Free talk
3aThink of something that you do not like to do. Then think of an invention that could help you. Make notes.
pre-writing
What problems do you have in your daily life
Can you think of an invention that could help you
I can’t take notes quickly in class.
I can’t remember the notes well.
I can’t get up on time.
take notes quickly
What can we invent to solve these problems
I can’t remember the notes well.
Problem:
remembering notes well
New invention
a memory robot
What it is used for
helping me remember well and quickly
I can’t get up on time.
Problem:
getting up on time
New invention
a special clock
What it is used for
waking me up on time
本单元的话题是“Invention (发明)”。
写作内容通常要求根据图表或文字提示介绍发明物的相关情况（历史、用途、特点等），或者针对生活中的实际情况，提出自己的发明建议。
写作时，要求学生能够运用本单元的语言知识，尤其是一般过去时的被动语态来组织语言。
话题分析
Analysis
by listening music.
by doing exercises.
Analysis
定人称
定时态
定体裁
说明文
一般过去时
第三人称
一般现在时
被动语态
How to introduce an invention
开篇点题
详尽描述
表达观点
How to
introduce an invention
Beginning
Ending
Body
What
Show opinion
What,How
Analysis
How to introduce an invention
开篇点题
详尽描述
表达观点
How to
introduce an invention
Analysis
This is ...
...was invented by/in...
It is made of…/It looks like…
It can not only … but also …
It was used to/for …
Without doubt I like … because …
by listening music.
by doing exercises.
Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class.
3a
While-writing
This special pen was invented by Liu Jie. It has three colors and is used for …
Beginning
Body
Ending
I’d like to introduce…
/This is…
Don’t you… If so, please…
It was invented… Because it…
It is used for… First… then…
Show
This special pen was invented by Liu Jie. He invent it because he want to take notes quickly in class.
It has three colors and is used for taking notes quickly.It is very useful if you have a lot to write down. The pen can store a list of common words that you will use. When you are writing, you just need to write the short forms with the pen, press a button on the pen the related words will appear. Besides, it can also turn our voice into actual words.
Without doubt I like the special pen because I can take notes quickly in class now. Don’t you think it’s cool
Sample writing
Beginning
Ending
Body
01
02
03
04
05
Peer
-editing
Good Structure
Correct grammar/spelling
Good sentences
Linking words
Beautiful writing
Exchange your articles, help each other correct them.
Post-writing
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 ________________. 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.
Self Check
invent
all of a sudden
doubt
websites
mention
提出；想出
Self Check
Complete the passage with the correct forms of the words in the box.
1
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)
Self Check
Rewrite these sentences using the passive voice.
2
B.书面表达。(本题15分)
你认为当今世界最伟大的发明是什么？请你根据以下思维导图内容写一篇英语短文，介绍这项发明。
How to introduce an invention
开篇点题
详尽描述
表达观点
How to
introduce an invention
....was invented by/in...
Because...
It is made of…/It looks like…
It can not only … but also …
It was used to/for …
Without doubt I like … because …
Summary
Thank you!
Thank you!
Thank you!
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。
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. _______________________________________________________________
__________________________________________________________________________________________________________________________________________________________________________________________________________________
　 In my opinion， the smartphone is the most useful invention.(自己的观点)
The smartphone has changed people’s lives in many ways. First of all， it has shortened the distance between people and has made it more convenient to communicate with each other. (功能1)What’s more， the smartphone has changed people’s ways of shopping. Online shopping helps people save a lot of time and money.(功能2)
Great inventions make our life more and more convenient. As students， we should study hard and take an active part in inventing things.(发出呼吁)　
With the development of technology， there are more and more useful inventions in our daily lives. ___________________________
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
My invention is a flying bike. It is fast, convenient and green!
The flying bike has two wheels and two wings. It has a top speed of 300km/h. You can go to farther places in a shorter time. It can run on land and fly in the air. If you shout "fly", the bike will turn into a plane in 30 seconds. Then you can fly in the air. You will be as free as a bird. It can take photos, too.
Instead of petrol, the bike uses solar power, so it will not pollute the air.
I will add a seat behind it so that it can carry two persons. My invention will help people live a better life in the future.