资源简介

(共25张PPT)
Unit 5
Power of Ideas
第2课时 (Section A 2a-2d)
R·九年级上册
At the International Exhibition of Inventions, the guide introduces _________, a special pair of ______ from ________.
They look like _________. They’re made for people with poor eyesight who can’t use normal glasses. A mini-camera
is _________ to the front of the glasses. It makes everything look ________. It can also ______ words _____ sound, so users can watch TV and read books. People can also ________ the colour and picture. Ella thinks it’s ________.
Review and fill
glasses
Germany
sunglasses
connected
larger
turn
into
control
amazing
Super See
At the exhibition, Teng Fei learns about ____________, a cooking robot from ______. It can cook food by _______.
Just ______food like carrot and onions in the cup of the top of the machine. Then ______________. All the food is _____ and ______. The oil and salt are also _______ by the machine itself.
It has an ______with _________________,
so it can make many kinds of dishes.
Teng Fei likes it because his parents can _________________ cooking with it.
China
Smart Cook
itself
put
press this button
cut
fired
added
app
hundreds of recipes
take a break from
Think & summarize
When we describe inventions, what can we talk about
Inventions
Name
Place of origin
Appearance
Usage & Function
How it works
Advantages
Feelings
What questions can we use to talk about an invention
What is the invention called
Which country is it from /made in
What does it look like (size, shape)
What is it used for /what can it do
How does it work/run
What do you think of it/ Why is it useful
Questions
Let’s watch
What’s the invention in the video
=Three Dimensional
(三维)
What do you want to know about the 3D printer
3D printer
/ pr nt （r）/ 打印机
What is a 3D printer
Which country is the first 3D printer made in
What is it used for /what can it do
It is a special printer that can make real objects.
The first 3D printer was invented in USA in 1983.
Some basic information about 3D printer
How does it work
What can the 3D printer make
Tick the things that you think a 3D printer can make. You can add more.
2a
medicine arms and legs
hearts toys
tables shoes
computers houses
chairs food
____________________
small parts for machines
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.
Because almost everything under the sun can be made by it.
Listen and find
What things can be made by the 3D printer
All kinds of everyday objects. Toys, chairs, tables, and even houses can all be made by the 3D printer.
日常用品
And in medicine, for example, arms and legs, and even hearts can be created by the 3D printer.
医学
It can even make food.
Think and predict
How does the 3D printer work
Complete the sentences with the correct forms of the words in the box. Then listen again and check your answers .
2c
read design produce create send
读（盘）
设计
制造
创建
发送
Listening strategy:
听前预测关键词、听中抓动作词、听后梳理逻辑
/pr dju s/
read design produce create send
First, the object is ________ on the computer.
1
Then, a file is __________ by the computer.
2
And the file is ________ to the 3D printer.
3
Next, the file is _______ by the 3D printer.
4
Finally, the object is _________ by building up plastic.
5
/fa l/ n.（计算机的）文件；文件夹
designed
created
build up 增加；加强；创建
sent
read
produced
Hi, Han Lin! Did you go to the International
Exhibition of Inventions last weekend
Yes, some amazing inventions were shown from
all over the world.
What invention did you like the most
Oh, the 3D printer was amazing.
Why
Almost everything under the sun can be made by it.
Ella:
Han Lin：
Ella:
Han Lin:
Ella:
Han Lin:
Read and analyze
询问周末是否去了发明展，引出 “inventions” 主题，交代背景
询问对方最喜欢的发明是什么，核心对象聚焦
通过追问喜欢的原因进一步深入话题。
Really Like what
Well, all kinds of everyday objects. Toys, chairs, tables, and even houses can all be made by the 3D printer.
That’s cool!
Yeah. And in medicine, for example, arms and legs, and even hearts can be created by the 3D printer.
Ella:
Han Lin:
Ella:
Han Lin:
追问具体例子，引出日常和医疗用途
That’s great! How does it work
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.
Is only plastic used
No, other materials can also be used to produce things. It can even make food.
Oh, really I’d love to try 3D-printed food!
Ella:
Han Lin:
Ella:
Han Lin:
Ella:
追问原理，引出工作流程
补充追问材料，完善认知
/ pl st k/ 塑料
Further thinking
Do you think 3D printer
is an amazing invention
Will the 3D printer become much more popular
in the future
List the things you use every day and choose the one that you like the most. Then talk about what it can be used for and its importance.
2d
Things I use every day
1. laptop
2. pencil
3. desk
4. _______
A: What invention do you like the most
B: I like... the most.
A: What can it be used for
B: It can be used for/to...
A: Amazing!/Fantastic! Is it important
in your daily life
B: Yes, it ...
notebook
Sample
A: What invention do you like the most
B: I like the laptop the most.
A: What can it be used for
B: It can be used for studying, searching information
and talking with friends.
A: Amazing! Is it important in your daily life
B: Yes, it helps me finish my schoolwork easily and
makes my life much more convenient.
printer / pr nt （r）/ 〔名词〕
1. Why was the 3D printer Han Lin’s favourite invention
Language points
由“print（v. 打印）+-er（名词后缀）”构成
(1)打印机
Could you please show me how to use the 3D printer
请问你能教我如何使用这台3D打印机吗？
(2)印刷公司；印刷工人；印刷商
Helen has been a printer in that printer for five years.
海伦在那家印刷厂做印刷工已经五年了。
拓展：print〔名词〕印刷品 〔动词〕打印
2. Finally, the object is produced by building up plastic.
produce /pr dju s/
(1)[及物动词]生产
It’s said that those laptops were produced in Germany.
据说那些笔记本电脑是在德国生产的。
(2)[及物动词]繁育
Scientists did a lot of research to help pandas produce more babies.
科学家们做了大量研究来帮助熊猫生育更多的幼崽。
(3)[及物动词]制作，拍摄（电影、戏剧等）
How many films has the famous director produced so far
到目前为止这位著名的导演拍了多少部电影了？
(4)[不可数名词] 产品；（尤指）农产品
Hundreds of people prefer to buy farm produce online. 许多人更喜欢在网上买农产品。
3. Is only plastic used
plastic / pl st k/
(1)[名词]塑料
The chair is made of plastic.
这把椅子是塑料制成的。
(2)[形容词]塑料的
It’s important to use fewer plastic bags and less paper.
使用更少的塑料袋和纸张是很重要的。
Homework
Review the language points of this lesson.
Make a new conversation about one invention that you like the most:
(usage, importance)
Do some related exercises.

展开更多......

收起↑