Unit 5 课时5 Section B Vocabulary in use 2a-2c（教学课件）英语新教材人教版九年级上册

该初中英语课件围绕“Power of Ideas”主题，聚焦collect、invent等核心词汇的词性转换（名词、动词、形容词）、近义词辨析（control/spread等）及语境运用，通过“日常发明提问+便利贴意外发明故事”导入，搭建从生活经验到词汇规律的学习支架，引导学生逐步掌握知识点。 其亮点在于采用“词形规律归纳（表格+记忆口诀）+语境辨析（句子选词填空）+迁移实践（小组讨论发明过程）”教学链，通过结构化呈现培养学习能力，结合语境练习提升语言能力，小组讨论发明故事发展思维品质。总结环节系统梳理词汇、词形及短语，助力学生高效掌握，教师可直接应用于课堂提升教学效果。

Unit 5 Power of Ideas Section B 2a-2c 主讲人：xx 课型：词汇课 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 Lead in 01 Presentation 02 Practice 03 Production 04 Summary 05 Language points 06 Exercises 07 Homework 08 Contents Lead in 01 Lead in Think about these questions: 1. What inventions do you use every day? 2. Who invented these things? 3. Is every invention carefully planned? Or some inventions come from accidents? Lead in Lots of great inventions were not planned at first. Today we will learn the true story of sticky notes. Presentation 02 Presentation Complete the table with different forms of the words. You can add more. Noun Verb Adjective collect creative invent product collection collective creativity/ creator create invention/inventor inventive produce productive 2a 动加ion变成名，加上or就代表人； 后缀ive变形容词，特质能力看得清； produce有俩名词形，产品product, 生产production。 记忆口诀 Presentation 词形变化规律 1. 动词 + -ion / -tion → 名词（动作、产物、抽象行为） collect→collection；create→creation；invent→invention；produce→production；act→action；discuss→discussion 2. 动词 + -or/ -er → 表人的名词（做这件事的人） invent→inventor 发明者 teach→teacher，act→actor 3. 名词词根 + -ive → 形容词（有…能力、…特质的） collect→collective；create→creative；invent→inventive act→active；attract→attractive；express→expressive Presentation 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 adj.+ -ly → adv. cheap adj. 便宜的； expensive adj. 贵的 invent：创造从未存在的新事物；produce：批量生产已有产品 secret adj. 秘密的； public adj. 公开的 反义词 Practice 03 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 Production 04 Production 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 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. To his surprise pieces of stood up resulted in 2c Production Then discuss how an invention like sticky notes is turned into reality. First, a scientist accidentally made weak glue, and nobody knew its use. Later, Arthur Fry met the problem that paper bookmarks kept falling down when he stood up to sing. To his surprise, he thought of the weak glue. He stuck small pieces of paper with the glue to mark pages. This great idea resulted in the production of different sticky notes. After that, they were produced, sold and used around the world, so the invention finally became real. So, how an invention is turned into reality? daily life problems creative thinking repeated tests Language points 05 Language points 词 讲 练 afford /əˈfɔːd/ v. 买得起；承担得起；能够做 1. afford + 名词 负担得起某物 2. afford to do sth. 有能力做某事；负担得起做某事 重要提示：afford 前面必须搭配情态动词 can / could / be able to， 否定式：can’t afford（买不起、承担不起）。 • Few people could afford this early invention hundreds of years ago. • We can’t afford to waste time improving this new product. 1. This new sticky note is cheap, everyone can afford it easily. (翻译句子) 2. Many small factories can’t afford ____________ (produce) so many new inventions. to produce 这款新款便利贴价格很便宜，所有人都能轻松买得起。 Language points 词 讲 练 company /ˈkʌmpəni/ n. 公司；陪伴 （复数形式：companies） • 表公司（商用、生产产品的企业） • 表陪伴，固定短语：keep sb. company 陪伴某人 • This company produces sticky notes every day. 这家公司每日生产便利贴。 • The little robot can keep me company when I study new inventions. 这款小机器人可以在我研究新发明时陪着我。 1. This printing ________ (company) makes many useful products. 2. My deskmate often keeps me ________ (company) after school. 3. Two foreign ________ (company) will join in the production of this new invention. company company companies Summary 06 Summary 1. rapidly /ˈræpɪdli/ adv. 迅速地； 2. afford /əˈfɔːd/ v. 买得起； 3. company /ˈkʌmpəni/ n. 公司；陪伴 4. sticky /ˈstɪki/ adj. 黏性的；闷热的 5. songbook /ˈsɒŋbʊk/ n. 歌曲集； 6. production /prəˈdʌkʃn/ n. 生产； 7. gradually /ˈɡrædʒuəli/ adv. 逐渐地；逐步地 8. widely /ˈwaɪdli/ adv. 广泛地 1. collect（v. 收集） → collection（n. 收藏品，收集） → collective（adj. 集体的） 2. create（v. 创造） → creation（n. 创造，作品） → creative（adj. 有创造力的） 3. invent（v. 发明） → invention（n. 发明物） → inventor（n. 发明者） → inventive（adj. 善于创造发明的） 4. produce（v. 生产） → product（n. 产品<实物>） → production（n. 生产，产量<抽象>） 5.rapid adj.飞快的 → rapidly adv.迅速地 1. to one’s surprise 令某人惊讶的是 2. a piece of paper 一张纸； pieces of paper 几张纸片 3. sticky notes 便利贴；便签纸 4. result in 导致；造成 5. lead to 导致 6. afford to do sth. 负担得起做某事；有能力做某事 7. carry out 执行；开展 Words Words Phrases Exercises 07 Exercises 1. Many tech _________(company) are trying to develop AI products to make people's lives easier. 2.Since 1964,Yuan Longping has worked to increase the___________ (produce) of rice. 3. Nowadays, electronic locks are _________(wide) used, which means people don't need to use keys to enter their houses. 4. Thanks to the heroes in history, society has developed so ________ (rapid). 5. Most teenagers can't afford __________(buy) expensive electronic products with their pocket money. 用所给词的适当形式填空。 companies production widely rapidly to buy Exercises 令我们惊讶的是，这场小小的意外催生了一项伟大的新发明。 ____ _____ ______, this small accident brought a great new invention. 2. 这位发明家裁剪了好几张小纸片，制作出早期的便利贴。 The inventor cut several small _____ ___ paper to make early sticky notes. 3. 多年前，这个巧妙的想法促成了便利贴的大规模生产。 This clever idea ______ ____ the big production of sticky notes years ago. 4. 这位科学家决定为这款特殊的弱粘性胶水开展多次试验。 The scientist decided to ______ _____many tests for the special weak glue. 5. 现如今，便利贴被广泛使用在办公室以及学生的书包里。 Nowadays, ______ ____ are widely used in offices and students’ schoolbags. 用所给词的适当形式填空。 To our surprise pieces of resulted in carry out sticky notes Homework 08 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。 Thank you for listening $