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(共29张PPT)
Unit 5
Power of Ideas
第6课时 (Section B 2a-3c)
R·九年级上册
Vocabulary in use
2a
Complete the table with different forms of the words. You can add more.
Noun Verb Adjective
collect
creative
invent
product
collection
creation
invention
create
collective
inventive
produce
productive
Noun Verb Adjective
attraction
protection
connection
More words:
attract
attractive
protect
protective
connect
connective
2b
Choose the correct word to complete each sentence.
1.The use of modern medicine has helped control /
spread many dangerous diseases.
2.News could travel much more rapidly / slowly with
inventions like the radio and the television.
3.Fibre made from oil provides a(n) cheap / expensive
solution to the problem that many people cannot
afford to buy enough clothes.
/ r p dli/（副词）迅速地；快速地
4.A film was invented / produced by a film company to
tell us about what robots could do for people’s lives in
the future.
5. In January 1911, Feng Ru carried out a secret / public
test flight in Oakland City. He showed the world what
Chinese people could achieve.
/ k mp ni/（名词）公司；剧团
carry out 履行；实施；执行；落实
/ kl nd/ 奥克兰（美国城市）
2c
Complete the passage with the correct forms of the phrases in the box. Then discuss how an invention like sticky notes is turned into reality.
piece of stand up result in to sb’s surprise
Did you know that an accident led to the invention of sticky notes In 1968，a scientist named Spencer Silver was trying to make a strong glue. _________________,
he produced a glue that was really weak. It could stick things，but it could be removed very easily. The glue was interesting, but no one could find a use for it.
To his surprise
Then, in 1974, a man named Arthur Fry was trying to mark the pages in a songbook using small ________ paper. However, whenever he __________to sing, the pieces fell to the floor. Then he remembered Silver’s glue. With the glue, the paper stayed in the songbook, but it could later be removed. Fry’s idea ___________the production of sticky notes of many sizes and colours. They gradually became popular and now are widely used all over the world.
pieces of
stood up
resulted in
[ ɑ:θ ] 亚瑟
/ s b k/（名词）歌曲集
How is an invention like sticky notes turned into reality.
Discuss and say
An invention like sticky notes became reality in several
steps. First, someone made a new discovery, even by
accident. Then, another person found a good use for it.
Finally, people produced it in different sizes and colours,
and made it popular. So, careful watching and creative
ideas can turn small discoveries into useful inventions.
（答案不唯一，仅供参考）
Pre-writing
Watch the video and say what great invention is about.
The invention of the plane
What was invented
Who were the inventors
Why was it invented
What challenges were met
How was it invented
When was it invented
What was its effect
What do you want to know about an invention
3a
Read the text and complete the chart.
The invention of the plane has greatly changed the world. However, it seems that its inventors, Orville Wright and Wilbur Wright, were not looking to change the world at all. Rather, they just wanted to fly like birds.
It seems that... 看起来好像/似乎……
rather（副词）相反；反而
奥维尔·赖特和威尔伯·赖特
To solve the problem of heavier-than-air flight, the Wright brothers began working with gliders. There were two main challenges. The first was how to get the glider into the air. The second was how to control it once it was
flying. For both problems, they found their solutions by looking at how birds flew. After they solved these problems, they added an engine to the glider. Then, in December 1903, the world’s first plane flights were made.
glider/ la d （r）/（名词）滑翔机
使成功；使圆满
The invention of the plane has made our travels around the world much easier and faster. Journeys that once took days, weeks, or even months, can now be made in only a few hours. As a result, communication among people in different countries is now much easier, and the world has become a much smaller place.
因此
The invention of the plane has greatly changed the world. However, it seems that its inventors, Orville Wright and Wilbur Wright, were not looking to change the world at all. Rather, they just wanted to fly like birds.
To solve the problem of heavier-than-air flight, the Wright brothers began working with gliders. There were two main challenges. The first was how to get the glider into the air. The second was how to control it once it was
flying. For both problems, they found their solutions by looking at how birds flew. After they solved these problems, they added an engine to the glider. Then, in December 1903, the world’s first plane flights were made.
The invention of the plane has made our travels around the world much easier and faster. Journeys that once took days, weeks, or even months, can now be made in only a few hours. As a result, communication among people in different countries is now much easier, and the world has become a much smaller place.
Read and analyze
1. Type(文体) 2. person(人称) 3. tense(时态)
Exposition
(说明文)
客观介绍飞机这项发明的背景、过程和影响，向读者传递知识信息，不是讲故事
第三人称
一般过去时和一般现在时
the plane, the Wright brothers, the invention 等第三人称名词/代词，保证了说明的客观性
一般过去时：用于描述过去发生的发明过程和事件
一般现在时：用于介绍客观事实、普遍真理和以及该项发明至今仍存在的影响
Paragraph 1
What was invented
Who were the inventors
Why was it invented
Paragraph 2
What challenges were met
How was it invented
When was it invented
Paragraph 3
What was its effect
The plane.
Orville Wright and Wilbur Wright.
Because the inventors wanted to fly like birds
How to get the glider into the air and how to control it once it was flying.
The inventors solved their problems by looking at how birds flew and they added an engine to the glider.
In December 1903.
It has made our travels around the world much easier and faster
The invention of the plane has greatly changed the world. However, it seems that its inventors, Orville Wright and Wilbur Wright, were not looking to change the world at all. Rather, they just wanted to fly like birds.
To solve the problem of heavier-than-air flight, the Wright brothers began working with gliders. There were two main challenges. The first was how to get the glider into the air. The second was how to control it once it was
flying. For both problems, they found their solutions by looking at how birds flew. After they solved these problems, they added an engine to the glider. Then, in December 1903, the world’s first plane flights were made.
The invention of the plane has made our travels around the world much easier and faster. Journeys that once took days, weeks, or even months, can now be made in only a few hours. As a result, communication among people in different countries is now much easier, and the world has become a much smaller place.
How to write about an invention
“总-分-总” 结构
Lead in the topic: what invention, inventor, purpose(初衷)
Introduce the process : challenges
（挑战） & solutions(方案)
Draw a conclusion: effects &
importance
While-writing
本单元的话题是“发明创造”,与此相关的写作一般是谈论某项发明,包括发明者、发明过程等。写作时,可以先谈该发明的意义,然后写其发明的过程,最后谈论自己的看法和观点。
Type（文体）
Person（人称）
Tense（时态）
说明文
以第三人称为主
以一般过去时和一般现在时为主
3b
Choose a great invention you are interested in. Do some research and make notes about it.
__________ was invented by ______________ in _____.
It was invented because _________________________.
It was made of/from ____________________________.
The inventor had difficulties in ___________________.
The invention was responsible for/ led to ___________.
The camera
Louis Daguerre
1839
people wanted to keep good memories and record important moments forever
metal, glass and copper plates(铜板)
making the images clear
and long-lasting, and reducing the exposure(曝光) time
the birth of modern photography and recording real history
Beginning:
Lead in the topic
Body:
Introduce the process
Ending:
Draw a conclusion
Outline(大纲) of your writing
what invention, inventor, purpose(初衷)
challenges（挑战） & solutions（方案）
effects（影响） &
importance（重要性）
The useful sentence patterns are recommended
The invention of the _________ has greatly changed the world.
一、开头段：引出发明(What invention, inventor, purpose)
However, it seems that its inventors, ______________, were not looking to change the world at all. Rather, ________ just wanted to ___________.
____ is one of the most important inventions in human history.
Of all the inventions, I think _____ is the most useful.
The world would be very different without the invention of ____.
It was invented by ____ in ____.
The inventor of ____ was _____, who was a ____ (scientist/engineer).
He didn’t invent it to become famous, but to solve a simple problem in daily life.
His main goal was to make people’s work/life easier.
二、过程段：挑战与解决（Challenges & solutions）
To solve the problem of __________, _______ began working with ______. There were _______ main challenges. The first was ____________. The second was __________. For both problems, _______ found their solutions by ____________. Then, in ________, the world’s ___________were made.
At first, the inventor faced many difficulties.
One of the biggest challenges was ...
It took him many years to solve the problem of ...
He tried many different materials and designs to make it work.
With the help of …, he finally ...
After thousands of experiments, he finally ...
It was not a sudden success, but the result of hard work and patience.
三、结尾段：影响与意义(effects & importance)
The invention of ______ has made ________________. As a result, _________.
The invention of … has greatly improved the way we …
Thanks to… , people can now … easily in just a few hours/days.
This invention shows that even small ideas can lead to big differences.
It teaches us that persistence and creativity can turn dreams into reality.
Today, we still use …every day, and it continues to shape our world.
3c
Write about the invention you have chosen using the information from 3b.
After-writing
Peers evaluation
Checklist 评价表 Items 评价项目 Standard Scores 标准分值 Scores
得分(15)
内容要点（Content） 完整覆盖发明物、发明者、初衷、过程、影响 5 大核心信息 5
篇章结构（Structure） 是否有清晰的开头 - 过程 - 结尾三段式结构 2
语言表达（Language） 语法、词汇、句型的准确性和丰富度 3
逻辑连贯（Coherence） 是否使用连接词，段落过渡自然 3
书写规范（Handwriting） 大小写、标点、拼写是否规范 2
范文欣赏
In the history of human invention, the camera is one of the most useful and meaningful creations. Do you know who invented the camera and how it was invented
It was invented by Louis Daguerre in 1839. People wanted to keep good memories and record important moments forever, so Daguerre worked hard to create this great tool.
The early camera was made of metal, glass and copper plates, which were very important for taking and keeping images. It was not easy to invent the camera. The inventor had difficulties in making the images clear and long-lasting, and reducing the exposure time.
The invention of the camera has great meaning. It was responsible for the birth of modern photography and recording real history. Today, cameras are everywhere and help us record every wonderful moment.
Homework
Listen and read the text in 3a.
Polish your article according to the evaluation checklist.

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