Unit 6When was it invented Section A 1a-2d 课件＋音频(共29张PPT) 人教版九年级英语全册

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Unit 6 When was it invented
Section A 1a-2d
What do they have in common
They all need electricity [ lek tr s ti].
They are of old style.
Do you know their inventors
They are all for daily use.
Which invention do you think is the most helpful in our daily life Why
T2
Background information
Who invented the computer
John Neumann and his team invented the computer.
The computer was invented by John Neumann and his team.
John von Neumann and his team
/ n m n/
T2
Who invented the car
Karl Benz invented the car.
Karl Benz
/benz/
The car was invented by Karl Benz.
Background information
Who invented the elephone
The telephone was invented by Bell.
Alexander Bell
T2
Background information
Who invented the TV
The TV was invented by J. L. Baird.
John Logie Baird
/ l ɡi/
T2
Background information
1a Look at the things below.
Which one of them was
invented first / last Why
T3 Discuss and number
Compare any two of them.
e.g.
I think the computer was invented before/after the ..., because ...
___ 1876
___ 1885
___ 1927
___ 1971
How do you read them
Years
2. What are they talking about
3. When were they invented
1. What’s the relationship
between two speakers
T4 View, say and predict
Four modern inventions
1b Listen and match the inventions with the years.
___ 1876
___ 1885
___ 1927
___ 1971
Years
Tip 1:
Listen for inventions and numbers.
T4 Listen and match
d
a
c
b
A: When was the telephone invented
B: It was invented in…
Alice’s grandma lived a/an ______ life in her childhood.
A. easy B. difficult C. boring
Which two inventions did Alice’s grandma have in the past
A car and a computer
A telephone and a car
A computer and a telephone
Why didn’t Alice’s grandma have a TV
Because the price was so high.
Because they didn’t like to watch TV.
Because it was not invented yet.
We couldn’t afford one.
afford: v
afford to do sth.
affordable : adj —— unaffordable
T5 Listen again for more details.
T6 Listen and repeat
Q: How to talk about when things were invented
In the past
Today
Clearer
More
portable 轻便的
More
environmental-friendly
Faster and smarter
Let’s talk about the changes.
They bring much___________ to our everyday life.
convenience
They bring __________ to our society.
improvement
T7 Pair work
A: When was the telephone invented
B: I think it was invented in…
-Who was it invented by
- It was invented by...
-What was it used for
-It was used for...
-What is your favorite invention
- My favorite invention is...because...
1971 Barry
1885 Karl Benz
1876 Bell
1927 Baird
T8 Summary
inventions
what
Four great inventions
telephone
car
television
computer
when
1876
1885
1927
1971
structure
-When ______ the telephone ______
-It ______ _______ in 1876.
was
invented
was
invented
Homework
1. Ask your grandparents if they also had the inventions at their young age.
2. Read and recite the conversation in 1c.
3. Finish Period 1 on the exercise book:
Level A+B: do all of Period 1
Level C: do 1-4 of Period 1
Level D: do 1-3 of Period 1
Review
发明
发明者
过时
时髦流行
电
支付得起
环保的
便携的
降低
被用于…
invention
inventor
out of style
in style
electricity
afford
environmental-friendly
portable
lower
be used for sth / doing sth
11. 电视是在约1927年左右被发明的。
The TV was invented around 1927.
Four famous inventions
Do you know other interesting inventions
heel
electricity
[ lek tr s ti]
What are the objects on the table
Which part is special
Can you guess what it is used for
T2 View and say
3
2
1
Tip 2: predict the answers before listening.
V-ing
n.
V-ing
changing
in the dark
serving
serve = pick up and pass it to the customers
T4 Listen and complete
Q: What are the shoes with special heels used for
A: They're used for ________ the style of the shoes.
p.139
According to Alex, what can be avoided if he wears the shoes with lights
How does the hot ice-cream scoop work
How are the shoes with heels used in different situations
Electricity _____ the scoop and makes the ice cream melt融化.
heats
T5 Listen and repeat
P137
be used for 被用做于……
1.How do we talk about the inventions’ function
2.Why do these inventions come into being
To meet the needs of life
Can you guess what this invention is
It is open.----There are two “railways”.
It is closed. ---There is one “railway”.
It’s a zipper
Listen and fill the chart.
A small but invention that changed the world
The item（物品） The zipper.
The reasons It’s often used in our daily lives.
（zippers ________________on many kinds of clothes)
The time It was invented in 1893.
It became _______ popular in 1917
The _________ Whitcomb Judson (One of the pioneers of different inventions on the _____from a website)
great
can be seen/used
widely
inventor
list
pioneer :
a person who is the first to study and develop a particular area of knowledge, culture, etc
Who/Whom was the zipper invented by
Whitcomb Judson.
/ w tk m/
/ d ds n/
The pioneers of different inventions were listed there.
Could you please…
——With pleasure!
daily : adj = everyday
daily : adv = every day
daily : n China daily
Your idea is right.
list: v
list: n (a list of )
mention: v
mention … to sb
It is mentioned that …
（Thanks!）
——Don’t mention it!不客气
拓展
please: v 取悦
(sth) pleasing = pleasant : adj 令人愉快的
(sb) pleased = adj 高兴的
be pleased to do
be pleased about /for/with sth
be pleased that …
Exercises
A. Let me do it. B. No worries! C. With pleasure.
1.Can you do me a favor to move the tables to the dinning hall
2.Peter ! Have a wonderful and ________ journey !
A. pleased . B. pleasure C. pleasant.
3.When you talk to people from western countries, please a________ the subjects like age, weight or money.
4.Medical care has become more and more u___________ in Canada for fewer people have chosen to go to hospital.
C
C
void
naffordable