人教新目标(Go for it)版九年级全册Unit 6 When was it invented?SectionB 3a-Self Check课件(共15张PPT)

(共15张PPT)
Unit 6
When was it invented
Section B (3a-Self Check)
初中英语 人教版 九年级上册
Problem: ________________________
New invention: ____________________
What it is used for: _________________
Think of something that you do not like to do. Then think of an invention that could help you. Make notes.
a special pen
quickly taking notes in class
taking notes in class
3a
Writing practice
This special pen was invented by Liu Jie. It has three colors and is used for ….
Imagine you are a business person. Write a description of your new inven-tion. Try to sell the invention to the class.
3b
Writing practice
常用句型：
1. I think … is a very useful invention.
我认为...是一项很有用的发明。
2. … was invented by …
...是由...(某人)发明的
3. … was invented in …
...是在...(某时间)发明的
4. It was used for … 它被用来...
5. … is made of ………
是由...(材料)制成的
Writing practice
One possible version:
This special pen was invented by Liu Jie. It has three colors and is used for taking notes quickly in class. It was invented in 2021. It is made of plastic and steel. It can remember what the teacher said. It can also help write down the main points. I think it’s a useful invention.
Writing practice
It is often difficult to decide on the inventor of certain inventions. This is
invent, doubt, mention, website, all of sudden
1. Complete the passage with the correct forms of the words in the box.
Self Check
Self Check
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
invent
all of a sudden
doubt
Self Check
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.
websites
mention
Self Check
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.
Self Check
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).
Self Check
Invention: _________________________
When: _________________________
Who: _________________________
Purpose: _________________________
in 2013
umbrella with a light
Li Meng
3. Find out information about an invention you would like to know more about and write sentences below.
seeing in the rain in the dark
Self Check
1. During the afternoon, there was a _______ (suddenly) heavy fall of snow.
2. I think the telephone _____________ (invent) before the car.
3. The __________ (Canada) song Alouette(百灵鸟) is a fun song about a bird.
一、 用所给单词的适当形式填空。
sudden
was invented
Canadian
Exercises
Exercises
4. They ____________ (invite) to take part in the May Day celebrations in Beijing.
5. The ___________ (popular) of private cars is changing the people’s life style.
6. When the bill ____________ (bring) to him, he was such surprised.
were invited
popularity
was brought
Exercises
7. They gave their lives for their country and were honored as ________ (hero).
8. We ___________ (divide) into eight groups by our teacher last week.
heroes
were divided
Exercises
Thank you