Unit 5 Power of Ideas Section B （1a-1f）课件 2026-2027学年人教版英语九年级上册

Section B 1a-1f Unit 5 Power of Ideas What are the four great inventions of China? What are the four great inventions of China? paper making gunpowder printing compass Look and answer Look at the pictures and answer the question. What material are these things made of? They are all made of paper. 1a Title: An Invention That Changed the World an invention papermaking The passage is mainly about ____________________. What invention is the text about? What type of writing is it? A. Narrative(记叙文) B. Exposition(说明文) C. Argumentation(议论文) ★ 1b 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? 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? 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? 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 Cai Lun’s experiment was successful. 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. Read para 4 and finish the tasks! ___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. Put the sentences in order. Match the pictures with the instructions. A C B D fibre liquid a bamboo screen 1e 4 thenhow, how did he improve papermaking? Let’s find answers in para 4 so we can find, new techniques were responsible for making better paper. These steps are responsible for making Cai Lun ‘a paper. They increased the number of books and helped knowledge spread all over the world. How did paper and printing change the world together? 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 Find out what these pronouns from the text refer to. It in Paragraph 1: ________ It in Paragraph 5: ________ it in Paragraph 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 the papermaking technique the use of paper and printing a rapid increase in the number of books 1c Question Material to write on before Cai Lun Cai Lun's paper What was it like? What was used to make it? difficult to use and store or very expensive soft, light, easy to make and use, cheap animal bones, bronze ware, stones, wood, bamboo, silk, jute bark, certain plants, old clothes Read again and complete the table. 1d Discuss the questions. 1. What other ancient Chinese inventions do you know? How was the world changed by them? printing the compass （指南针） gunpowder （火药） 1f Printing helped spread knowledge and culture much faster and more widely. The compass made long-distance sailing safer and easier, so people could discover new lands. Gunpowder changed wars and later was also used in construction（建筑）. These inventions greatly pushed the development of the whole world and influenced human history deeply. 16 2. What qualities do you think a great inventor has? I think a great inventor has many good qualities. First, the inventor is creative and can come up with new ideas. Second, he is hard-working and never gives up easily. Third，he or she is patient and keeps trying even if he or she fails many times. （答案不唯一，仅供参考） Language points 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. 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 Language points 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. Language points ( ) 1. —Which of the three books do you want to borrow? —______. I’ve already read all of them and don’t need any now. A. None B. Neither C. All D. Either ( ) 2. His carelessness in the experiment ______ a big mistake, which made his teacher very disappointed. A. led to make B. led to making C. led making D. led make ( ) 3. The serious traffic jam ______ the heavy rain last night, and it ______ many people being late for work this morning. A. resulted from; resulted in B. resulted in; resulted from C. resulted from; led D. led to; resulted from I.用所给词的适当形式填空。 A B A ( )5.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 ( )6.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 ( )4.I have two ways to improve my creativity, but ________ is perfect enough. A．both B．either C．neither D．none C A B Good tools are r____________ for the quick progress of his work. This kind of paper is s____________ for drawing because it is soft. We hope to turn our dreams into r____________ one day. The new policy will s_________ up local economic development. L_____ on, more people began to know about this great invention. esponsible uitable eality peed ater II.用所给词的适当形式填空。 6. Papermaking ________ (be) responsible for the rapid spread of information long ago. 7. The new paper was much ________ (cheap) than silk and bamboo slips. 8. Cai Lun was an ________ (office) of the Eastern Han palace workshop. 9. This great ________ (create) changed civilizations all over the world. 10. 青少年看屏幕时间过长可能导致视力下降。 Too much screen time may ________ ________ poor eyesight for teenagers. was cheaper officer creation lead to result in 11. This quiet park is a ___________ (suit) place for reading and relaxing. 12. There are some huge ___________ (stone) on the path. Be careful not to trip over them. 13. After years of planning, their dream of building a smart home finally became a ___________ (real). 14. Two police ___________ (office) were directing traffic at the busy crossroads. 15. The beautiful clay pot is my own ___________ (create). I made it in the art class. suitable stones reality officers creation 16.Making mistakes is part of the _________ (create) process. 17.His new idea is ___________ (complete) different from others’. 18.This idea is one of the most _________ (effect) ways to save energy. 19.The Internet makes it possible for us _________ (spread) information in seconds. 20.The invention of paper was ___________ (responsibility) for the rapid spread of knowledge. 21.The Qinghai-Xizang Railway _______________ (complete) in 2006. creative completely effective to spread was completed responsible III.短文填空 Cai Lun was an officer in the Eastern Han Dynasty. He _____(become) interested _______ solving writing‑material problems. Different methods ________________(try), but none were ideal. He got ideas from daily life. Bark, plants and old clothes _______________(use) _____________(produce) new paper. This invention not only improved Chinese culture _________ also influenced the whole world. but became in were tried were used to produce Homework 基础作业 拓展作业 实践作业 完成本课重点单词（如 material, spread, knowledge, experiment, ingredient, fibre等）的背诵与默写，并完成课本 1c 和 1d 中关于代词指代和信息归纳的阅读任务。 根据课本 1e 的造纸步骤排序，用完整的英文句子按顺序写出造纸的五个步骤（从原料混合到压制成纸），全部使用一般过去时被动语态。 结合课本 1f 的讨论问题，选择一项中国古代发明（如指南针、火药、印刷术等），用英文写一段60–80词的短文，介绍其发明者、发明时间及对世界的影响，其中至少使用3个一般过去时被动语态句子。 Lavf57.71.100 Packed by Bilibili XCoder v2.0.2 $