Unit 5 SectionB 2a-2c 课件 2026-2027学年人教版英语九年级上册

Unit5 Power of ideas How do we turn ideas into reality? Section B (2a-2c vocabulary) 通过2a词性转换练习，归纳collect、invent、product、creative等核心词汇的名词、动词和形容词形式，理解词形变化规律。（学习理解） 01 通过2b选词填空，在句子层面辨析近义词（control/spread、rapidly/slowly、 cheap/expensive、invented/produced、secret/public），准确选择恰当词汇完成句子；通过2c完形填空，理解便利贴的发明故事，运用所给短语补全语篇。（应用实践） 02 运用本课所学词汇和短语，小组讨论并口头分享发明如何从想法变成现实，结合便利贴的偶然发明故事，表达对创新和失败价值的看法。（迁移创新） 03 学习目标 Look at the pictures and complete the sentences. invention n. 发明物 (物) inventor n. 发明者 (人) invent v. 发明 _________ _________ the earliest wireless telegraph, a world-famous __________. He was a great ___________. He was an ___________ man. inventor invented invention inventive adj. 善于发明的 inventive Guglielmo Marconi What are a noun， a verb and an adjective? Complete the table with different forms of the words. You can add more. 2a Noun Verb Adjective collect creative invent product collection creation invention produce create collective inventive productive inventor production creator collector producer What suffixes are used to form nouns? -tion/-or/-er Complete the table with different forms of the words. You can add more. 2a Noun Verb Adjective collect creative invent product collection creation invention produce create collective inventive productive inventor production creator collector producer What suffixes are used to form adjectives? -ive/-tive -er -tion -or Can you add more words with these suffixes ? actor 演员 doctor 医生 visitor 访客 professor 教授 tractor 拖拉机 editor 编辑 sailor 水手 education 教育 information 信息 invitation 邀请 pollution 污染 population 人口 attention 注意力 introduction 介绍 pronunciation 发音 worker 工人 farmer 农民 singer 歌手 runner 跑步者 driver 司机 cleaner 清洁工 writer 作家 rapidly produce secret control expensive spread cheap invent public slowly A. v. 发明 B. adj. 便宜的 C. adv. 缓慢地 D. v. 生产 E. adj. 公共的 F. v. 传播 G. adv. 迅速地 H. adj. 昂贵的 I. v.&n. 控制 J. adj. 秘密的 Match the words with their meanings. Choose the correct word to complete each sentence. 2b 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. 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. spread v. 传播；control v. 控制 rapid adj. 迅速的 → rapidly adv. 快速地 cheap adj. 便宜的； expensive adj. 贵的 secret adj. 秘密的； public adj. 公开的 反义词 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 now are widely used all over the world. Complete the passage with the correct forms of the phrases in the box. piece of stand up result in to sb’s surprise 令某人惊讶的是 一张/一片 站起来 导致 To his surprise pieces of stood up resulted in 2c Read the passage again and answer the questions. How did Spencer Silver make the weak glue? 2. What was the problem when Arthur Fry marked his songbook with small pieces of paper? 3. Why could the paper stay in the songbook after using Silver’s glue? He made it by accident when he tried to create strong glue. The paper fell to the floor when he stood up to sing. Because the glue could stick things and be removed easily. Is the invention sticky notes carefully planned or by accident? Sticky notes were invented by accident. So, how is the invention turned into reality? Sometimes an accident gives people new ideas. People think of ways to use the new thing. Then they produce it and make it popular. 1. Which invention and inventor in this unit impressed you the most, and why? 2. How can inventions change people’s lives? I like ...best. They were invented by ... They are used to.../for ... Inventions make our lives easier and more convenient. They help us save time and solve many problems in daily life. Think and answer the questions. Think about how to introduce your invention and complete the sentences. The poster ● the name of the invention ● a picture of it ● what it is made of / from ● what it is used for ● what effect it has on people’s lives This is our invention: ______. It is made of ______. It is used for ______. It is inexpensive and easy to operate. It helps ______. keep sb. company 一、词组默写。 1. 为……提供某物_____________________ 2. 负担得起做某事____________________ 3.  执行；实施；进行_____________________ 4. 试图/努力做某事_____________________ 5. 导致；通向；促成_____________________ 6. 一种强力胶水_____________________  7. 粘东西_____________________ 8. 找到……的用途_____________________   9. 给页面做标记_____________________ 10. 掉到地板上_____________________ 11. 留在歌本里_____________________ 12. 稍后被移除_____________________ 13. 关于……的主意_____________________ lead to sth./doing sth. afford to do sth. carry out try to do sth. provide sth. for sb. a strong glue stick things find a use for... mark the pages fall to the floor stay in the song book later be removed idea for... Practice 1. The _________ (collect) has a big ________ (collect) of old inventions. 2. He is a _________ (create) boy, his __________ (create) surprises everyone. 3. The great _________ (invent) made many useful _________ (invent). 4. This factory’s __________ (produce) is high, and every __________ (produce) sells well. 5. China has developed ________(rapid) these years. 用所给词的适当形式填空 collector collection creative creation inventor inventions production product rapidly 产品product, 生产production Homework 基础作业 拓展作业 实践作业 完成本课重点单词及短语（collect, creative, invent, product, control, spread, rapidly, slowly, cheap, expensive, produce, secret, public等）的抄写与默写，并完成课本2b和2c的选词填空练习。 参照课本2a的词性转换表，将所给单词按名词、动词、形容词三类整理成表格，并用所给词汇（如control, spread, produce, invent, create等）各造一个句子。 结合课本2c中便利贴（sticky notes）的发明故事，选择一项日常生活中常用的小发明（如便利贴、拉链、橡皮擦等），用英文写一段60-80词的短文，介绍它的来历或有趣之处。 Lavf59.14.100 $