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(共20张PPT)
Unit 4 Inventions
主题范畴：
人与社会
主题群：
科学与技术
子主题：
科学技术与工程，人类发明与创新
Key question
What makes an invention great
learn some words, like “benefit”, “distance”, “avoid”;
draw a mind map before writing about my idea for a new invention;
write an article about a new invention with what I have learnt in this unit.
Learning objectives 学习目标
At the end of the class, I’ll be able to:
benefit / ben f t/ n. 益处；优势
wing /w / n. （飞行器的）翅膀；机翼
distance / d st ns/ n. 距离
petrol / petr l/ n. 汽油
avoid / v d/ v. 避免；防止
anywhere / eniwe (r)/ adv. 在（或去）任何地方
traffic jam 堵车；交通阻塞
New words and phrase
Lead in
Writing an article about a new invention
Teen Life Magazine
The School Science Festival will start next week. We are looking for students’ ideas for new inventions to put on the school website. Please write an article about your idea for a new invention and send it to us.
Wang Yao drew a mind map before she wrote about her idea for a new invention—a flying car. Look at the mind map and read her article to find out how she organized her ideas.
Look and find.
useful expressions
①在陆地上行驶
②在空中飞行
③最高时速300公里/小时
④行驶更远的距离
⑤通过语音控制
⑥变成一架飞机
⑦像鸟一样自由
⑧使用太阳能
⑨避免交通堵塞
⑩欣赏风景
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
While-writing
Now describe your own invention.
Step 1
Plan Draw a mind map for your own invention.
A smart backpack
Step 2
Write Write about your invention. You can also draw a picture of it.
My Invention — A Smart Backpack
My invention is a smart backpack. It’s really good, helpful and easy to use.
The backpack has a nice look. It has a big part to put things and some small pockets. It’s made of light and waterproof material. There’s a little screen on one side and a place to charge phones on the other.
It can sort your stuff. When you put books, notebooks and pens in it, it uses small tools to keep them tidy. It can tell you how heavy the backpack is. If it’s too heavy, it will send a message to your phone.
One possible version
There’s a solar panel on top. So, it can charge your phone when there’s sun. You can find your things easily. No more looking for things everywhere!
The weight-telling part helps you not carry too much. This is good for your back. With solar charging, you don’t need to worry about your phone dying when you’re out.
For students, it makes school life easier. They can carry books well and keep phones charged for study or fun. For travelers, it’s great. They can keep things tidy, know the weight to avoid back pain, and charge things when traveling.
It’s also good for the earth. Solar charging means we use less extra power.
Step 3
Check and revise Tick ( ) the boxes to check your writing, and then revise it.
I wrote about the main features of my invention, such as ________, and what it looks like.
I described what it can do and how it is used.
I used the words and expressions I learnt in this unit.
I used correct spelling, grammar and punctuation.
Post-writing
短语收藏夹
①在陆地上行驶
②在空中飞行
③最高时速300公里/小时
④行驶更远的距离
⑤通过语音控制
⑥变成一架飞机
⑦像鸟一样自由
⑧使用太阳能
⑨避免交通堵塞
⑩欣赏风景
run on land
fly in the air
a top speed of 300 km/h
travel farther distances
be controlled by voice
turn into a plane
as free as a bird
use solar power
avoid traffic jams
enjoy the view
Language points
1. Benefits of my invention 我的发明的优势
benefit n. 益处；优势
词形变化：beneficial adj. 有益的
benefit v. 使受益；得益于
常用搭配：
for the benefit of 为了……的利益
benefit from 从……中受益
1. 这项发明让学生受益匪浅。
This invention ________ students a lot.
2. 我们为了用户利益做了这个改变。
We made this change for the _________ of users.
3. 人们从新技术中受益。
People ________ _______ the new technology.
完成句子
benefits
benefit
benefit from
distance n. 距离
词形变化：distant adj. 遥远的；远处的
如：a distant place一个遥远的地方
常用搭配：in the distance在远处
keep one’s distance from ... 与……保持距离
完成句子：
我们看到远处有一辆飞行汽车。
We saw a flying car _____________.
离这台危险机器远点。
__________________ from the dangerous machine.
2. You can travel farther distances in less time.
in the distance
Keep your distance
① avoid v. 避免；防止
词形变化：avoidance n. 避免；回避
常用搭配：avoid doing sth. 避免做某事
Translate:
你该避免犯同样的错。
You should avoid making the same mistake.
② traffic jam 堵车；交通阻塞
Translate:
这场交通堵塞已经持续两个多小时了。
This traffic jam has lasted over two hours.
3. My invention will help people avoid traffic jams.
假如你是未来机器人设计师，请根据图片和提示给宇树科技公司写一篇英语短文介绍你设计的未来机器人。要求字数80左右。
This is my new robot in the future. _________________
My robot
What does the robot look like
What can the robot do in the future (至少三件)
What do you think of the robot
This is my new robot in the future. It has a smooth, silver body. Its face is a screen that can show happy, sad or other looks. And it has arms and legs that can move easily.
In the future, it can help students with hard subjects like math. It can tell them how to solve problems step by step. It can also help scientists get and study data when they do tests. Also, it can make people happy by putting on shows with music and dance.
I think this robot is very useful. It can be helpful and fun, so it’s a good friend in many parts of life.
One possible version
基础作业：
认真学习范文中的短语、句型和连贯词，订正堂上习作中的错误并润色；
和小组成员分享习作，并且在作文本中记录组员的优秀句子。
拓展作业：
把习作设计制作成图文并茂的海报。

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