Unit 5 Power of Ideas 课时4 Section B(1a-1f)课件(共38张PPT)人教版九年级英语上册

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Unit 5 Power of Ideas 课时4 Section B(1a-1f)课件(共38张PPT)人教版九年级英语上册

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(共38张PPT)
课型:阅读课
课时:1a-1f
Unit 5 Power of Ideas
Section B How do we turn ideas into reality
学生能够梳理文章脉络,读懂造纸术的起源、制作流程与世界影响,掌握文中被动语态、固定短语等核心语言知识,准确抓取文本细节信息。(学习理解)
01
学生能结合文本思辨造纸术的文明价值,结合其他中国古代发明展开英文讨论,挖掘发明家可贵品质,树立文化自信并灵活运用所学语言表达个人观点。(迁移创新)
03
学生能借助思维导图复述课文内容,运用本课词汇与被动语态完成表格填空、步骤排序等课堂任务,有条理地口头介绍蔡伦造纸的全过程。(应用实践)
02
教学目标
01
Lead-in
What are the four great inventions of China
What are the four great inventions of China
paper making
gunpowder
What are the four great inventions of China
printing
compass
02
Pre-
reading
What material are these things made of Find more things that are made of this material.
1a
All the things are made of paper.
paper cups
posters
post cards
notebooks
. . .
What is the notebook made of
It’s made of paper.
Let’s ask and answer!
Words and Expressions
bronze ware
phr. 青铜器
fibre / fiber
n. 纤维;纤维素
Words and Expressions
liquid
n. 液体 adj. 液体的
creation
n. 创造,作品
03
While-reading
Reading: An Invention That Changed the World
Can you imagine a world without books, newspapers, or magazines All of these things depend on one invention—papermaking. It, more than any other invention, was responsible for the rapid spread of information that shaped our modern world.
In ancient China, many different materials were used to write on, such as animal bones, bronze wares, stones, wood, bamboo, and even silk. In the Western Han Dynasty, there was also a very early form of paper made from jute—a fibre that comes from plants. However, all of these materials were either difficult to use and store or very expensive.
As the head officer of the palace workshop for the emperor in the Eastern Han Dynasty, Cai Lun became interested in trying to solve the problem. Different methods for creating something to write on were tried, but none were ideal. In his times, some kinds of bark—the outside part of trees—were used to make clothes. From past experiences, Cai Lun got the idea that bark,
Read the text and match each paragraph with its topic.
1b
Papermaking shaped the modern world
Early materials to write on
Cai Lun’s creative idea
certain plants, and old clothes could be used to make a special material suitable to write on.
In the first step of Cai Lun’s experiment, all the ingredients were mixed and boiled in water. Then, this material was beaten, cut up, and mixed with water again. Next, the liquid was poured over a bamboo screen, leaving just the fibre. Finally, this fibre was dried and pressed to form paper. To everyone’s surprise, this paper was soft, light, easy to make and use, and most importantly, cheap. In 105 CE, Cai Lun showed his creation to the emperor. The emperor was very pleased and praised Cai Lun for his great work.
Later on, the papermaking technique did not only speed up the development of Chinese culture, but also changed civilizations around the world. It first spread to China’s neighbouring countries and finally reached Europe through Arabic countries in the 12th century. When the use of paper and printing came together in later centuries, it led to a rapid increase in the number of books. This resulted in a new birth of knowledge, creating the world we have today.
Read the text and match each paragraph with its topic.
1b
How paper changed the world
Cai Lun’s experiment was successful
Match the names with the things. Find out when they were invented.
1a
Paragraph 1 A. Early materials to write on
Paragraph 2 B. Cai Lun’s experiment was successful
Paragraph 3 C. Papermaking shaped the modern world
Paragraph 4 D. How paper changed the world
Paragraph 5 E. Cai Lun’s creative idea
Find out what these pronouns from the text refer to.
1c
1. It in Paragraph 1: ____________
2. his in Paragraph 3: __________
3. It in Paragraph 5: _______________________
4. it in Paragraph 5: ________________________
5. This in Paragraph 5: _________________________________
Understanding reference words
Noticing what pronouns refer
to will help you understand how
different parts of the reading are
connected.
papermaking
Cai Lun’s
the papermaking technique
the use of paper and printing
a rapid increase in the number of books
Because it made information spread much faster and shaped the modern world.
Why does the writer say papermaking changed the whole world
Let’s read and think!
Can you imagine a world without books, newspapers, or magazines All of these things depend on one invention—papermaking. It, more than any other invention, was responsible for the rapid spread of information that shaped our modern world.
1
They were hard to use, store, or too expensive.
What were the problems of those old materials
Let’s read and think!
In ancient China, many different materials were used to write on, such as animal bones, bronze wares, stones, wood, bamboo, and even silk. In the Western Han Dynasty, there was also a very early form of paper made from jute—a fibre that comes from plants. However, all of these materials were either difficult to use and store or very expensive.
2
He was creative and good at observing life.
What quality did Cai Lun show when he tried new materials
Let’s read and think!
As the head officer of the palace workshop for the emperor in the Eastern Han Dynasty, Cai Lun became interested in trying to solve the problem. Different methods for creating something to write on were tried, but none were ideal. In his times, some kinds of bark—the outside part of trees—were used to make clothes. From past experiences, Cai Lun got the idea that bark, certain plants, and old clothes could be used to make a special material suitable to write on.
3
His paper was cheap and convenient for people to use widely.
Why was Cai Lun’s invention a big success at that time
Let’s read and think!
In the first step of Cai Lun’s experiment, all the ingredients were mixed and boiled in water. Then, this material was beaten, cut up, and mixed with water again. Next, the liquid was poured over a bamboo screen, leaving just the fibre. Finally, this fibre was dried and pressed to form paper. To everyone’s surprise, this paper was soft, light, easy to make and use, and most importantly, cheap. In 105 CE, Cai Lun showed his creation to the emperor. The emperor was very pleased and praised Cai Lun for his great work.
4
They increased the number of books and helped knowledge spread all over the world.
How did paper and printing change the world together
Let’s read and think!
Later on, the papermaking technique did not only speed up the development of Chinese culture, but also changed civilizations around the world. It first spread to China’s neighbouring countries and finally reached Europe through Arabic countries in the 12th century. When the use of paper and printing came together in later centuries, it led to a rapid increase in the number of books. This resulted in a new birth of knowledge, creating the world we have today.
5
Read again and complete the table.
1d
Question Material to write on before Cai Lun Cai Lun’s paper
What was it like
What was used to make it
hard to use and store, expensive
soft, light, cheap, easy to make and use
animal bones, bronze, stones, wood, bamboo, silk, jute
tree bark, plants, old clothes
Put the sentences in order. Then retell the process of making paper in your own words.
1e
_______ A. The material was beaten, cut up, and mixed with water.
_______ B. All the ingredients were mixed and boiled in water.
_______ C. The fibre was dried and pressed to form paper.
_______ D. The liquid was poured over a bamboo screen, leaving just
the fibre.
04
Post-
reading
Discuss the questions.
1f
What other great inventions do you know that were made in ancient China How was the world changed by them
What qualities do you think a great inventor has
Other ancient Chinese inventions: gunpowder, compass, printing.
The compass helped people travel and sail across oceans. Printing made knowledge spread widely around the world. Gunpowder changed wars and later created fireworks for celebration.
A great inventor is creative, hard-working, patient, and good at observing life. They never give up after many failed experiments.
Retell the passage according to the mind map.
Retell the passage according to the mind map.
Papermaking is a great invention that changed the whole world.
Long ago, ancient Chinese people wrote on bones, bamboo, silk and other materials, but they were either hard to store or costly.
Cai Lun, an officer in Eastern Han Dynasty, wanted to make better writing materials. He got an idea to use tree bark, plants and old clothes.
He mixed, boiled, cut and pressed these materials to make new paper. This paper was soft, light and cheap. The emperor praised him after seeing it in 105 CE.
Later, papermaking spread to neighbouring countries and Europe. Together with printing, it created more books and helped knowledge spread all over the world.
Discuss the questions and talk.
1. Why papermaking is one of the most valuable ancient Chinese inventions
2. If there was no papermaking, what big trouble would human civilization meet
Without paper, people could not record and pass down knowledge easily. Books would be …
Papermaking produced cheap, light writing carriers. It helped…
Let’s watch and learn.
05
Language
Points
Text
对…… 负责
依靠;取决于
定语从句,修饰 fibre
要么…… 要么……
Can you imagine a world without books, newspapers, or magazines All of these things depend on one invention—papermaking. It, more than any other invention, was responsible for the rapid spread of information that shaped our modern world.
In ancient China, many different materials were used to write on, such as animal bones, bronze wares, stones, wood, bamboo, and even silk. In the Western Han Dynasty, there was also a very early form of paper made from jute—a fibre that comes from plants. However, all of these materials were either difficult to use and store or very expensive.
Text
时代
宫廷作坊主管
把 A 倒在 B 上
As the head officer of the palace workshop for the emperor in the Eastern Han Dynasty, Cai Lun became interested in trying to solve the problem. Different methods for creating something to write on were tried, but none were ideal. In his times, some kinds of bark—the outside part of trees—were used to make clothes. From past experiences, Cai Lun got the idea that bark, certain plants, and old clothes could be used to make a special material suitable to write on.
In the first step of Cai Lun’s experiment, all the ingredients were mixed and boiled in water. Then, this material was beaten, cut up, and mixed with water again. Next, the liquid was poured over a bamboo
Text
加速
烘干并压制成……
因某事赞扬某人
邻国
结合;融合
screen, leaving just the fibre. Finally, this fibre was dried and pressed to form paper. To everyone’s surprise, this paper was soft, light, easy to make and use, and most importantly, cheap. In 105 CE, Cai Lun showed his creation to the emperor. The emperor was very pleased and praised Cai Lun for his great work.
Later on, the papermaking technique did not only speed up the development of Chinese culture, but also changed civilizations around the world. It first spread to China’s neighbouring countries and finally reached Europe through Arabic countries in the 12th century. When the use of paper and printing came together in later centuries, it led to a rapid increase in the number of books. This resulted in a new birth of knowledge, creating the world we have today.
06
Exercises
The young inventor ________ a completely new solution to the traffic problem.
A.came up with B.caught up with
C.kept up with D.put up with
2
The great Dujiangyan Irrigation (灌溉) System in China ________ over 2,200 years ago to water farmland without building a dam.
A.built B.was built C.is built D.build
3
I have two ways to improve my creativity, but ________ is perfect enough.
A.both B.either C.neither D.none
1
Multiple choice.
Making mistakes is part of the _________ (create) process.
His new idea is ___________ (complete) different from others’.
This idea is one of the most _________ (effect) ways to save energy.
The Internet makes it possible for us _________ (spread) information in seconds.
The invention of paper was ___________ (responsibility) for the rapid spread of knowledge.
The Qinghai-Xizang Railway _______________ (complete) in 2006.
creative
语法填空
completely
effective
to spread
was completed
responsible
07
Homework
1. Memorize the new words and phrases.
2. Practice the conversations with your partner using the words
and sentence patterns we have learned .
3. Finish the exercises.
Homework

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