人教版九年级全册Unit 6 When was it invented?SectionB 3a-Self Check 课件(共25张PPT)

(共25张PPT)
人教新目标Go For It九年级英语全册
Unit6 When was it invented？ SectionB 3a-Self Check
What inventions have been mentioned in this unit
computer
car
zipper
TV
telephone
basketball
tea
potato chips
1. What’s it and when was it invented
2. What’s it used for
3. What does it look like
4. Who would be interested in buying this product
5. How does it work
6. How much is it
To read without reflecting is like eating without digesting
1. 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
To read without reflecting is like eating without digesting
Pre-writing
话题
文体
人称
时态
结构
Para. 1 开门见山——介绍茶的发明
Para. 2 细节介绍
Para. 3 总结全文，升华主题
介绍茶
说明文
以第三人称为主
一般过去、一般现在
假如你是茶文化博物馆的讲解员,明天你要用英语向一批外国游客介绍茶的发明史。请根据提示,写一篇80词左右的书面介绍。
要求：
1.思路清晰，语句通顺，书写规范。
2.正确使用被动语态。
who, when, how, where
To read without reflecting is like eating without digesting
Pre-writing
When
Who
Process
Where
大约5000年前，茶最先被喝。
Tea was first drunk about 5000 years ago.
据说，茶是被神农发明的。
It is said that tea was invented by She Nong.
如今茶在全世界被人们喜爱。
Today tea is loved all over the world.
First, Shen Nong was ________(boil) drinking water.
Then, some _____(leaf) _____(fall) into the water and _________(remain) there _____ some time.
Next, it __________ (produce) a nice smell.
At last, Shen Nong decided _______(taste) the water and found it delicious.
boiling
leaves
fell
remained
for
produced
to taste
To read without reflecting is like eating without digesting
What inventions have been mentioned in this unit
computer
car
zipper
TV
telephone
basketball
tea
potato chips
When
Who
How
Why
in 1853
George Crum
The customer said the fried potatoes were cut too thick and sent them back to the kitchen. George was angry.
1. Cut the potatoes really, really thin.
2. Cooked them for a long time until they were crispy.
3. Put lots of salt on them.
体裁：说明文
时态：介绍发明要用一般现在时
人称：第三人称
在介绍该发明的工作原理时，可以使用表示顺序的词first和then来连接，这是使用逻辑纽带的方式进行衔接的一种方法。
To read without reflecting is like eating without digesting
3. Problem: ___________________________
New invention: ______________________
What it is used for:
____________________________________
____________________________________
2. 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
To read without reflecting is like eating without digesting
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 …
To read without reflecting is like eating without digesting
What inventions have been mentioned in this unit
computer
car
zipper
TV
telephone
basketball
tea
potato chips
Why
When
Who
Shen Nong
around 5,000 years ago
by accident
To read without reflecting is like eating without digesting
invent doubt mention website all of a sudden
Self Check
Complete the passage with the correct forms of the words
in the box.
1
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
To read without reflecting is like eating without digesting
free talk
How to introduce an invention
3
4
1
5
who
how
at the same time
although
because...
in order to...
so that...
There be...
color,shape,size,use
what
why
invention
2
when
in+ 年份
on+月，日，年
...was/were invented by...
...invented...
who
when
why
what
how
To read without reflecting is like eating without digesting
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
To read without reflecting is like eating without digesting
Self Check
Rewrite these sentences using the passive voice.
2
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.
When was the personal computer invented
To read without reflecting is like eating without digesting
中间句：
It was invented … ago.
It was made of/from …
It was used to/for …
This invention can not only … but also …
This invention made it … for sb. to do sth.
To read without reflecting is like eating without digesting
经典名句：
Labor creates the world. 劳动创造了世界。
One of the greatest human qualities is its creativity.
人类最伟大的品质之一便是其创造性。
To read without reflecting is like eating without digesting
This special pen was invented by Liu Jie. 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 comes with a microchip that can store a list of common words that you will use. You can program the words you will use often into the microchip's memory, then assign a short form to each word. When you are writing, you just need to write the short forms with the pen, press a button on the pen and all short forms will change into the actual words. The microchip can contain up to 50 words and you can make changes to the list of words whenever you need to.
To read without reflecting is like eating without digesting
Self Check
Rewrite these sentences using the passive voice.
2
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.
The video was taken back to the store by someone.
To read without reflecting is like eating without digesting
常用的关联词
1. 开头常用词语：
as far as we know 据我们所知
as everybody knows 众所周知
at present 目前
first of all 首先
tell the truth 老实说
2. 结尾常用词语：
after all 毕竟
in the end 最后
in a word 总而言之
we hope that ... 我们希望 In short 简而言之
clearly 显然
原因 thanks to, because of, because
结果 as a result of, so/therefore, so ... that
转折 however, yet, but
补充说明 not only ... but also ..., furthermore/ What’s more/ besides/ In addition, It is said that ...
To read without reflecting is like eating without digesting
There have been many great inventions that have changed the way we live.
I think the first great invention is the wheel. It was invented a few thousand years ago and it was made of wood at that time. I think it’s really such a great invention. It has not only made traveling faster but also made it easier to carry heavy things. However, almost nobody knows who invented it. The next important invention is without doubt the telephone. It was invented by an American called Alexander Bell in 1876. It was made of plastic and metal. It is used to communicate over distances.
Besides the above, there are still lots of other great inventions. Thanks to these amazing inventions and the great inventors, our lives have been greatly improved.
To read without reflecting is like eating without digesting
Self Check
Find out information about an invention you would like to know more about and write sentences below.
3
Invention: _____________________________
When: ________________________________
Who: _________________________________
Purpose: ______________________________
To read without reflecting is like eating without digesting
计算机在我们的生活、工作中的作用越来越大，你知道计算机的起源与发展吗？请结合计算机的发明时间(1946年）、外形、用途等方面，谈一下它的发展变化，并说明你对未来计算机的畅想。
要求：意思连贯，语句通顺；词数不少于80。
Practice
To read without reflecting is like eating without digesting
如何介绍某项发明
引出话题
... important in our daily life.
介绍发明
时间：... was invented in ...
外形：... is/was small/huge/light ...
用途：... is/was used for/to ...
畅想未来/总结全文
I think/hope it ...
To read without reflecting is like eating without digesting
Write a short passage to introduce the invention according to the information in Self Check 3.