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(共15张PPT)
Read and find. (P98)
Read and find. (P99)
Use what you remember to complete the table.
Invention Super See Smart Cook
Type a pair of special ________ a smart cooking ________
Function used for people ________ make everything ________ with the help of a ________ turn words into ________ help people ________ and ________ control the ________ and ________ can ________ and ________ all the food
add the ________ and ________ by itself
make ________ kinds of dishes
glasses
who can’t see well
look larger
mini-camera
sound
watch TV
read books
colour
picture
machine
cut
fry
oil
salt
hundreds of
What invention are we going to talk about today
I can make a toy, a cup, or a small house.
I don’t use paper. I use plastic.
I work slowly, layer by layer(一层一层地).
I am a machine. What am I
a 3D printer
Tick the things that you think a 3D printer can make. (2a)
√
√
√
√
√
√
√
√
√
√
Everything in the world can be made with a 3D printer.
Which step happens first
design an object
create a file
send a file to a printer
produce an object
Listen to the conversation and answer the questions. (2b)
1. Where did Han Lin go last weekend
2. Why was the 3D printer Han Lin’s favourite invention
He went to the International Exhibition of Inventions.
国际发明展览会
Because almost everything under the sun can be made by it.
in the world
you can think of
Complete the sentences with the correct forms of the words in the box. Then listen again and check your answers. (2c)
designed
be+done
created
sent
read
produced
堆叠塑料
Read and learn. (P99)
How is a product produced
design an object
create a file
send a file to a printer
produce an object
First, an object is designed on the computer.
Then, a file is created by the computer.
And the file is sent to the 3D printer.
Next, the file is read by the 3D printer.
Finally, the object is produced by building up plastic.
How is a product produced
design an object
create a file
send a file to a printer
produce an object
First, an object...
Then, a file ....
And the file ...
Next, the file ...
Finally, the object ....
List the things you use every day. Which one do you like the most
What can it be used for
How often do you use it
How does it make your life easier
What would happen if you didn’t have it
Work in a pair. Then talk about what it can be used for and its importance.
A: What invention do you like the most
B: I like the _______ the most.
A: What can it be used for
B: It can be used for ________________________.
A: How often do you use it
B: I use it _________________.
A: How does it make your life easier
B: It ____________________ and _______________________.
A: What would happen if you didn’t have it
B: If I didn’t have it, I would ____________________________.
A: Wow, it sounds like you really can’t live without it!
B: Exactly! It’s like a part of my life.
Role play their conversation.
Ella: Hi, Han Lin! Did you go to the International Exhibition of Inventions last weekend
Han Lin: Yes, some amazing inventions were shown from all over the world.
Ella: What invention did you like the most
Han Lin: Oh, the 3D printer was amazing.
Ella: Why
Han Lin: Almost everything under the sun can be made by it.
Ella: Really Like what
Han Lin: Well, all kinds of everyday objects. Toys, chairs, tables, and even houses can all be made by the 3D printer.
Role play their conversation.
Ella: That’s cool!
Han Lin: Yeah. And in medicine, for example, arms and legs, and even hearts can be created by the 3D printer.
Ella: That’s great! How does it work
Han Lin: Well, first, the object is designed on a computer. Then, a file is created and sent to the 3D printer. The 3D printer reads the file, and after that, the object is produced by building up plastic.
Ella: Is only plastic used
Han Lin: No, other materials can also be used to produce things. It can even make food.
Ella: Oh, really I’d love to try 3D-printed food!

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