Unit 6 When was it invented？Section B (3a~Self Check) 课件(共16张PPT)2023-2024学年人教版英语九年级全一册

(共16张PPT)
Unit 6
When was it invented
Section B (3a~Self Check)
新
课
导
入
Free Talk
Discuss about what you want to invent and why.
Language Goal
新知学习
课堂小结
当堂检测
学习目标
重点研讨
1.能巩固复习本单元的单词和短语
2.能巩固复习一般现在时的被动语态
3.能写一篇新发明的说明
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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 taking notes in class
a special pen
correcting mistakes
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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...
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Writing Tips
在介绍发明的信息时经常要用被动语态。在介绍发明的历史(即发明者、发明时间和发明地点)的时候通常用_________时态的被动语态。在介绍发明的用途时，通常使用“_______________________”句式。
一般过去
be used for doing sth.
One possible version
______________________________________
______________________________________
______________________________________
______________________________________
______________________________________
______________________________________
This special pen was invented by Liu Jie. It has three colors and is used for taking notes and correcting mistakes. It is very cheap. It is easy to take. It is made of plastic so it's not heavy. Do you want to buy it
新知学习
课堂小结
当堂检测
学习目标
重点研讨
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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
all of a sudden
新知学习
课堂小结
当堂检测
学习目标
重点研讨
invent　doubt　mention　website all of a sudden
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.
doubt
websites
mention
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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
___________________________________________________
My watch was stolen by someone.
Five eggs were used to make this big cake by them.
When was the personal computer invented by them
新知学习
课堂小结
当堂检测
学习目标
重点研讨
4．They asked us not to run in the hallway.
_______________________________________________
5．Someone took the video back to the store.
_______________________________________________
We were asked not to run in the hallway by them.
The video was taken back to the store by someone.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Revision
一般过去时的被动语态的基本用法
用法 示例
表示过去某一具体时间发生的动作,且句子的主语是谓语动词动作的承受者 The house was built in 1990.
这所房子建于1990年。
讲述发生在过去的动作，且不知道动作的执行者 He was honored with the name “ Father of Hybrid Rice”.
他被授予“杂交水稻之父”的
称号。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
1. 肯定句: 主语 + was/were + V-ed + (by…)
The news was published by the government.
2. 否定句: 主语 + was/were + not + V-ed + (by…)
3. 一般疑问句: Was/Were + 主语 + V-ed + (by…)
The news wasn't published by the government.
Was the news published by the government
4. 特殊疑问句: 疑问词 + was/were + 主语 + V-ed + (by…)
When was the news published by the government
一般过去时的被动语态的句式结构
新知学习
课堂小结
当堂检测
学习目标
重点研讨
3 Find out information about an invention you would like
to know more about and write sentences below.
Invention: ______________________________________
When: _________________________________________
Who: __________________________________________
Purpose: ________________________________________
Bell
Telephone
1876
To communicate with others
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Unit 6
Section B (3a~Self Check)
在介绍发明的信息时经常要用被动语态。在介绍发明的历史(即发明者、发明时间和发明地点)的时候通常用_________时态的被动语态。在介绍发明的用途时，通常使用“___________________”句式。
复习一般过去时的被动语态 ：
肯定句：____________________________________________
否定句：____________________________________________
一般疑问句：________________________________________
特殊疑问句：________________________________________
主语 + was/were + V-ed + (by…)
主语 + was/were + not + V-ed + (by…)
Was/Were + 主语 + V-ed + (by…)
疑问词 + was/were + 主语 + V-ed + (by…)
一般过去
be used for doing sth.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
完成句子。
1．他考虑去法国，但最终决定去加拿大。
He thought about going to France, but ______ ______ going to Canada finally.
2．一些人怀疑他是否在音乐上有天赋。
Some people ________ ________he has talent in music.
3．谁想出来那个主意的？
Who______ ______ ______ that idea
4．很多商店要求顾客不要使用塑料袋。
Customers______ ________ ________ ______ use plastic bags in many shops.
5．所有这一切发生得太突然了。
All these things happened______ _______ ______ _______.
decided on
doubt whether
came up with
are asked not to
all of a sudden