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

Power of Ideas Section B (1a~1f) Unit 5 英语人教版九年级上册  Learning objectives 通过本课时的学习，学生能够： 1. 读懂介绍造纸术的文章，了解造纸术的演进过程、技术改良、基本流程等关键信息。 2. 运用预测、查找细节等阅读策略梳理文本，识别代词指代的内容，理清说明文行文结构。 3. 复述造纸工艺流程，谈论其他古代发明及其影响。 4.了解造纸术对世界文明的贡献，感悟古人创新智慧，体会思想创造的力量，增强文化自信。 重点 重点 Watch and answer Watch the video and answer the question. What invention is introduced in the video? Papermaking. Look and answer Look at the pictures and answer the question. What material are these things made of? They are all made of paper. Think and say Think about the question and answer it. napkins paper cups paper plates boxes posters newspapers ... What things are made of paper? Look and predict Look at the title and answer the questions. What is the text probably about? The passage mainly tells us a very important invention. What inventions do you think can change the world? Printing, telephone, computer, papermaking ... Read and match Read the text and match each paragraph with its topic. A. Early materials to write on Paragraph 1 Paragraph 2 Paragraph 3 Paragraph 4 B. Cai Lun’s experiment C. Introduction to the topic D. How paper changed the world Paragraph 5 E. Cai Lun’s creative idea Circle and find out Circle and find out what these pronouns from the text refer to. What do these pronouns refer to? • It in Paragraph 1: _____________________ • It in Paragraph 5: _____________________________________ • it in Paragraph 5: _____________________________________ • This in Paragraph 5: _____________________________________ the papermaking technique the use of paper and printing the rapid increase in the number of books papermaking Understanding reference words Noticing what pronouns refer to will help you understand how different parts of the reading are connected. Read and complete Read again and complete the table. 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, and cheap many different materials, such as animal bones, bronze ware, stones, wood, bamboo, silk, and an early form of paper made of jute bark, certain plants, and old clothes Read and complete Read again and complete the mind map. Before paper Papermaking Cai Lun’s improvement Early writing materials were difficult _______________ or expensive. Cai Lun’s paper was cheap and ________. There are several _______ to make paper. Steps of making paper Spread of paper Paper finally spread from China to _______. pressed Influence Papermaking changed the ________. to use and store suitable steps Europe world Read and answer 1. What was the biggest advantage of Cai Lun’s new paper? 2. How did papermaking help common people? 3. What good qualities did Cai Lun have? What can you learn from him? Read again and answer the questions. It was cheap and suitable for writing. It allowed common people to write and learn more easily. He was creative, hard‑working and patient. We should keep trying and never give up when facing difficulties. 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 ware, 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. Read and learn Read the text and learn the key words and phrases in the text. An Invention That Changed the World papermaking /ˈpeɪpəˌmeɪkɪŋ/ n. 造纸工艺；造纸业 responsible /rɪˈspɒnsəbl/ adj. 作为原因的；有责任的 responsible for sth. 对某事负责 rapid /ˈræpɪd/ adj. 迅速的；瞬间的 shape /ʃeɪp/ v. 塑造 n. 形状 bronze /brɒnz/ n. 青铜 ware /weə(r)/ n. 制品；陶器 stone /stəʊn/ n.石头；岩石 jute /dʒuːt/ n.黄麻纤维 fibre /ˈfaɪbə(r)/ (=fiber) n. 纤维；纤维素 expensive /ɪkˈspensɪv/ adj.昂贵的；价格高的 Read the text and learn the key words and phrases in the text. 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 time, some kinds of bark—the outer 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. workshop /ˈwɜːkʃɒp/ n. 作坊；讲习班 none /nʌn/ pron. 没有一个；毫无 ideal /aɪˈdiːəl/ adj. 理想的；最合适的 n. 理想；完美的人（或事物） officer /ˈɒfɪsə(r)/ n.官员；军官 bark /bɑːk/ n. 树皮 v. 吠叫 certain /ˈsɜːtn/ adj. 某些；确定的 pron.（不提及人或事物的名称时用）某些 suitable /ˈsuːtəbl/ adj. 合适的；适宜的 Read and learn 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. liquid /ˈlɪkwɪd/ n. 液体 adj. 液体的 cheap /tʃiːp/ adj. 便宜的 adv. 低廉地 creation /kriˈeɪʃn/ n. 创造；作品 Read and learn Read the text and learn the key words and phrases in the text. Read the text and learn the key words and phrases in the text. Later on, the papermaking technique not only speeded 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 Arab 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. later on 后来；其后 speed up (使)加速 Arab /ˈærəb/ adj. 阿拉伯的 n. 阿拉伯人 Arabic /ˈærəbɪk/ n. 阿拉伯语 adj. 阿拉伯的，阿拉伯语的 lead to 导致；造成 lead 过去式 led result in 造成；导致 Read and learn Read and order Read paragraph 4 and put the sentences in order. ____ 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. 1 2 4 3 How to make paper? Retell the text Retell how paper is made according to the mind map. How to make paper? First, Next, Then, Finally ____ 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. 1 2 4 3 Discuss and complete What other ancient Chinese inventions do you know? How was the world changed by them? Discuss the questions and complete the table. Invention How did it change the world? Printing It made book production faster and helped spread knowledge to more people. The compass It helped sailors find their way at sea and made long-distance sea travel safer. Gunpowder It changed the way wars were fought and was also used to make fireworks. … … Discuss and share What qualities do you think a great inventor has? Discuss the question and share your idea. I think a great inventor is creative and hard‑working. He never gives up when he meets difficulties. In my opinion, a great inventor should be careful and keep trying new ideas. Exercise The ________ of great inventions often comes from people’s hard work. In ancient times, many creative ideas could not become ________. Some early tools were too __________ for common people to use. ________ of the old materials was ________ for widespread use. With the _______ development of technology, things began to change. It is ________ that new inventions greatly ________ our culture and daily life. Some new products are ________ and easy to make. But we should think: who is __________ for these wonderful changes in human history? Fill in the blanks with the correct form of the given words. birth reality expensive None suitable rapid certain reality responsible rapid shape expensive none certain suitable cheap birth shape cheap responsible Summary feel the power of human creativity and wisdom, and learn to value great ancient inventions. know the history and production steps of papermaking. 3 1 After learning this lesson, I can 2 understand the development and spread of papermaking. Homework 1. Remember the new words and key phrases learned in this lesson and use them. 2. Make a card about one great invention. Write down its name, time, simple process and influence. You can draw pictures on it. Unit 5 Thank you! $