Unit 5 Power of Ideas Section B 2a-3c 课件 2026-2027学年人教版英语九年级上册

资源下载
  1. 二一教育资源

Unit 5 Power of Ideas Section B 2a-3c 课件 2026-2027学年人教版英语九年级上册

资源简介

(共26张PPT)
Section B 2a-3c
通过本节课的学习,同学们将能:
1. 掌握词形变化规律,辨析易混词,完成语篇填空;提取飞机发明的关键信息,用英语描述发明的过程与影响。
2. 了解中外发明故事(莱特兄弟、冯如),体会创新精神,增强文化自信与国际视野。
3. 通过语篇信息定位、逻辑推理,培养批判性思维与归纳能力;对比不同发明的影响,形成辩证思考。
4. 运用“段落主旨定位法”完成阅读信息梳理任务,学
会合作探究与自主学习,提升学习策略。
Warming-up
Look at these pictures. What do they have in common
They are all great inventions. They make our lives easier.
Every great invention comes from an idea. Today, we’ll learn about the stories behind the inventions and how to write about them. Let’s start with our vocabulary review!
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
produce
collective
inventive
productive
名词后缀 -tion
动词后加-tion,构成名词,表示 “动作 / 行为 / 结果”。
形容词后缀 -ive:
动词后加-ive构成形容词,表示 “具有······性质的”。
2b
Choose the correct word to complete each sentence.
1. The use of modern medicine has helped control / spread of many dangerous diseases.
2. News could travel much more rapidly / slowly with inventions like the radio and the television.
3. Fibers made from oil provides a(n) cheap / expensive solution to the problem that many people cannot afford to buy enough clothes.
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.
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.
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 are now widely used all over the world.
To his surprise
pieces of
stood up
resulted in
3a
Read the text and complete the chart.
The invention of the airplane 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 Paragraph 1 and answer the following questions.
1.What was invented
The plane.
2.Who were the inventors
Orville Wright and Wilbur Wright.
3.Why was it invented
Because they wanted to fly like birds.
Read Paragraph 2 and answer the following questions.
2.How was it invented
They studied how birds flew, solved problems, and added an engine to the glider.
3.When was it invented
In December 1903.
Read Paragraph 3 and answer the following question.
What was its effect
It made travels around the world much easier and faster; speeded up communication among people in different countries; made the whole world much smaller.
1.What challenges were met
Getting the glider into the air and controlling it.
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 ____________________.
We’ve just learned about how the Wright brothers invented the plane. We know who invented it, why, how, and when. Now, you are going to be “invention researchers”. You will choose an invention you like, do some research, and make notes about its story with this template.
Sample
__________ was invented by _________________ in ___________________.
It was invented because ____________________________________________
________________________________________________________________.
It was made from ________________________________________________.
The inventor had difficulties in ______________________________________
________________________________________________________________.
The invention led to ______________________________________________
________________________________________________________________.
The plane
the Wright brothers
the US in 1903
people wanted to find a way to fly through the air, just like birds
wood, cloth and an engine
solving two big problems: getting the glider into the air and controlling it while flying
faster travel around the world and easier communication between different countries
3c
Write about the invention you have chosen using the information from 3b.
Now turn those notes into a short English passage using the information from 3b.
Finish a short passage introducing an invention based on the notes from 3b.
Requirements:
1. Clear structure, including three paragraphs: an introduction(点明发明,介 绍基本事实), a body(说明背景、材料和过程困难) and a conclusion(总结发明的影响与意义).
2. Correct use of the passive voice and the phrases learned in this lesson.
3. Neat handwriting and no grammatical errors.
The Invention of Plane
The plane was invented by the Wright brothers, Orville and Wilbur Wright, in 1903. It is one of the most important inventions in history.
The brothers wanted to fly like birds. They worked with gliders first. They had two big challenges: getting gliders into the air and controlling them. They found answers by studying birds. The plane was made of wood and an engine. After many tries, the world’s first plane flights were made in December 1903.The invention greatly changed our world. It made travelling much faster and easier. It also helped people from different countries communicate better. The world became a smaller place because of this invention.
Sample
单元主题写作
本单元以“The Power of Ideas”为主题,属于“人与社会” 主题语境范畴,聚焦“伟大发明与创新精神”子主题。通过阅读莱特兄弟发明飞机、便利贴意外诞生等文本,学习被动语态、因果表达及介绍发明的核心句型,引导学生了解中外发明故事,感受创新与坚持的价值,撰写一篇介绍自己感兴趣的发明的短文。
写作时,注意下面几点:
1. 结构清晰:采用“开头点题(基本事实)—中间叙事(背景、过程与困难)—结尾升华(影响与意义)”的三段式结构;
2. 语法正确:正确使用一般过去时的被动语态(was/were invented/made)和本课核心短语(如 be made of/from, have difficulties in, lead to);
3. 内容完整:覆盖发明的发明者、时间、背景、材料、困难及影响等关键信息;
4. 语言连贯:合理使用简单连词(because, but, and)串联句子,使语篇逻辑通顺。
Beginning
开头点题
1. 开篇点出要介绍的发明
2. 1-2句说明该发明的普遍影响力
Body
Ending
意义升华
1. 该发明对社会 / 生活的改变
2. 提炼创新精神、坚持品质等核心感悟
3. 可简单提及对未来发明的畅想
标 题
思路引导
背景、过程与困难
1. 发明者 / 发明时间 / 发明动因
2. 研发中遇到的困难与解决方法
3. 发明的技术特点或功能优势
1. Among all the great inventions that have changed our world, __________(发明名称) stands out as one of the most influential ones in modern history.
2. It is widely believed that the invention of __________ has completely transformed the way people live, work and communicate.
1. This amazing invention was created by __________ (发明者) in __________ (年份), when he/she was trying to solve the problem of __________.
2. At first, the inventor met many difficulties such as __________, but he/she never gave up and finally succeeded after hundreds of experiments.
3. Different from previous similar products, this invention is special because __________.
结尾句:
1. The invention not only brings convenience to our daily life, but also teaches us that great ideas always come from careful observation and continuous effort.
2. As middle school students, we should also learn to think creatively and try to turn our small ideas into real inventions in the future.
词句积累
中间句:
开头句:
在人类历史上,无数发明改变了我们的生活方式:飞机让天涯变咫尺,纸张让知识得以传承,便利贴让创意不再转瞬即逝…… 每一项发明的背后,都藏着发明家的坚持与智慧。了解发明的故事,能让我们感受到创新的力量,更能激励我们在生活中大胆思考、勇于尝试。
请以 “My Favorite Great Invention” 为题,写一篇不少于80词的英语短文。
要求:
1. 结构清晰,包含开头、中间、结尾三段;
2. 正确使用一般过去时的被动语态和本课核心短语;
3. 内容完整,覆盖发明的关键信息;
4. 文中不得出现真实的人名、校名。
写作实践
Sample
My Favorite Great Invention
Papermaking is my favorite great invention in the world. It was invented by Cai Lun in China around 105 CE.
At that time, people used heavy bamboo slips or expensive silk to write on. Cai Lun wanted to make a cheap and easy material for people to record information. He made paper from common things like tree bark, rags, and old fishing nets. He had difficulties making the paper thin and strong, but he never gave up. After many tries, he finally succeeded.
The invention of paper led to the spread of knowledge all over the world. Even today, paper is still widely used in our daily lives. It is truly an invention that changed human history.
Check your work with your partner. Use the scoring list to find mistakes, and tell your friend how to make the writing better.
Mutual scale(互评量表) 评价标准 互评 建议
结构与格式:采用三段式结构(开头点题—中间叙事—结尾升华),层次清晰。(2分)
内容是否完整(发明的发明者、时间、背景、材料、困难、影响等关键信息)。(3分)
正确使用一般过去时被动语态,无明显语法错误。(2分)
语句通顺,逻辑连贯。(3分)
Language points
1. afford v. 买得起;负担得起;能做(某事)
原文再现:Fibre made from oil provides a cheap solution to the problem that many people cannot afford to buy enough clothes.由石油制成的纤维为许多人买不起足够衣物的问题提供了一种廉价的解决方案。
afford强调“有足够的钱/时间/能力去做某事”。
afford to do sth 有能力做某事(尤指花钱)
e.g. She can’t afford to buy the expensive dress.她买不起这条昂贵的裙子。
【对点练习】
1. She can’t afford ____________ (buy) the latest phone.
2. — Why don’t you buy the house
— Because I can’t ________ it. It’s too expensive.
A. afford B. decide C. forget D. offer
to buy
A
2. be looking to do sth 试图找到做某事的方法;打算/试图做某事
原文再现:However, it seems that its inventors, Orville Wright and Wilbur Wright, were not looking to change the world at all.然而,似乎它的发明者——奥维尔·莱特和威尔伯·莱特根本并不打算去改变世界。
e.g. He is looking to buy a new bike.他打算买一辆新自行车。
e.g. We are not looking to lose the game.我们并不想输掉这场比赛。
【对点练习】
1. ——下周你打算做什么? ——我打算去看望我的祖父母。
— What __________ you ___________ __________ __________ next week
— I’m looking to visit my grandparents.
2.— Why did Orville Wright and Wilbur Wright invent the plane
— They weren’t looking to ________ the world. They just wanted to fly.
A. change B. changing C. changes D. changed
A
are looking to do
3. as a result 结果;因此;所以
原文再现:As a result, communication among people in different countries is now much easier, and the world has become a much smaller place.因此,不同国家人们之间的交流如今变得容易多了,世界也变得小多了。
as a result介词短语,常放在句首,后面用逗号隔开。表示因果关系,引出结果。同义替换:so(但so后不用逗号)。
e.g. She practiced hard. As a result, she won the game.她刻苦训练,因此赢得了比赛。
e.g. The weather was bad. As a result, we didn’t go out.天气不好,所以我们没出门。
【对点练习】
1. He didn’t sleep well last night. ________, he felt tired in class.
A. As a result B. Such as C. So that D. Because
2. 他努力学习,因此英语进步很大。
He studied hard. __________ _________ _________ , his English improved a lot.
A
As a result
Exercises
一、用括号内所给单词的适当形式填空
1. Many people like ______________ (collect) stamps in their free time.
2. Lu Xun is a famous ______________ (create) writer in China.
3. The light bulb was ______________ (invent) by Thomas Edison.
4. The ______________ (produce) of this factory is very good, so its products sell well.
5. To my ______________ (surprise), he passed the exam easily.
6. The company ______________ (produce) a new kind of phone last year.
7. Information spreads ______________ (rapid) in the age of the Internet.
8. English is ______________ (wide) used in international trade.
collecting
creative
invented
production
surprise
produced
rapidly
widely
/to collect
二、完成句子
1. 这种纸是由树木制成的。
This kind of paper __________ _________ _________ trees.
2. 令我惊讶的是,他竟然按时完成了工作。
__________ _________ _________, he finished the work on time.
3. 当老师进来时,学生们都站起来了。
When the teacher came in, all the students __________ _________.
4. 他的努力最终带来了巨大的成功。
His hard work __________ _________ great success at last.
5. 信息传播得比以前更快了。
Information __________ _________ than before.
6. 造纸术是中国古代的一项伟大发明。
Papermaking is __________ __________ ___________ _________ ancient China.
7. 发明家在制作这种材料时遇到了困难。
The inventor __________ _____________ _________ making this material.
is made from
To my surprise
stood up
resulted in
spreads faster
a great invention of/in
had difficulties in
/led to
1. 复述飞机发明的故事,录制1分钟左右的口头复述音频,要求包含发明的背景、过程与影响。
2. 设计一个你认为可以改善生活的小发明,绘制简单示意图,并用5-8个英语句子描述它的功能、制作材料和预期作用。
Thanks

展开更多......

收起↑

资源预览