Unit5 Power of Ideas暑假预习学案2026-2027学年人教版英语九年级上册

2026年暑假预习学案 人教版·九年级英语上册 Unit 5 Power of Ideas 2026新课标 · 三维预习 · 全面提升 预习航标 析目标·明方向 预习导航精准定向 教材全解 建框架·精讲解 知识体系系统梳理 题型突破 析考点·破方法 典型题型深度拆解 01 预习航标 析目标·明方向：预习导航精准定向 一、单元主题概述 单元标题：Unit 5 Power of Ideas（思想的力量） 主题语境：人与社会 — 科技发展与发明创造 单元概述：本单元围绕"伟大发明与创意思想"话题展开，通过Section A的听说训练，学习发明类核心词汇与一般过去时被动语态，了解照相机、笔记本电脑等经典发明的发明时间、发明者及其影响；通过Section B的阅读与写作，走进伟大思想家与发明家的世界，感受创新精神与思想力量，学会用被动语态介绍发明物品与人物成就。 核心素养：语言能力（词汇+语法+听说读写）、文化意识（中外发明文化+创新精神）、思维品质（对比分析+逻辑归纳+批判思考）、学习能力（策略+方法+迁移） 二、预习目标清单 【词汇目标】 1. Section A 核心词汇：invent, invention, inventor, camera, laptop, rapid, influence, create 1. Section A 拓展词汇：plane, mobile phone, high-speed train, TV 1. Section B 核心词汇：creative, creativity, thinker, developer, basic, method, research, achieve, achievement 1. 核心短语：have an effect on, make it easier for, of all time, in seconds, come up with, do research on, stick to, be known for, make contributions to 【语法目标】 1. 掌握一般现在时被动语态结构：am/is/are + 过去分词 1. 掌握一般过去时被动语态结构：was/were + 过去分词 1. 熟练进行主动语态与被动语态的句型转换 1. 掌握核心问答句型：When was it invented? / Who was it invented by? 【技能目标】 1. 听：能听懂发明主题对话，精准抓取发明物品、时间、发明者及影响等信息 1. 说：能运用被动语态介绍发明物品的名称、发明时间、发明者及影响 1. 读：能读懂人物传记类长文本，梳理人物经历、研究过程、核心成就与精神品质 1. 写：能运用被动语态与核心词汇，写60-80词的发明介绍或人物评价短文 【文化意识】 1. 了解中外经典发明的诞生背景与发展历程 1. 感知创意与科技发明对人类生活、社会发展的推动作用 1. 学习科学家坚持不懈、勇于突破、敢于创新的优秀品质 1. 体会"创意改变生活、科技赋能未来"的内涵 三、预习导航表 请同学们对照下表，逐项完成预习任务，打勾标记完成情况： 预习环节 预习内容 完成 Step 1 朗读Section A核心词汇与短语，掌握发音与基本含义 ☐ Step 2 朗读Section A对话，圈画被动语态句型，感知语法结构 ☐ Step 3 阅读语法讲解，理解一般过去时被动语态的构成与用法 ☐ Step 4 朗读Section B核心词汇与短语，标注陌生单词 ☐ Step 5 阅读Section B课文，划分段落层次，圈画主旨句 ☐ Step 6 完成预习自测题，查漏补缺 ☐ 02 教材全解 建框架·精讲解：知识体系系统梳理 一、Section A 词汇精讲 1. 核心词汇表 单词 词性 释义 派生/搭配 invent v. 发明；创造 invention (n. 发明物) / inventor (n. 发明者) invention n. 发明物；发明 a great invention 一项伟大发明 inventor n. 发明者；发明家 a great inventor 一位伟大的发明家 camera n. 照相机 take photos with a camera laptop n. 笔记本电脑 a laptop computer rapid adj. 迅速的；快速的 rapidly (adv.) / rapid change influence n./v. 影响 have an influence on = influence sb. create v. 创造；创作 creative (adj.) / creativity (n.) 2. 核心短语精讲 ① have an effect on 对……有影响 用法：effect前可用great/big修饰，on后接名词或代词。 例句：Great inventions have a great effect on our daily life.（伟大的发明对我们的日常生活有很大影响。） ② make it easier for sb. to do sth. 使某人做某事更便捷 用法：it为形式宾语，to do sth.为真正宾语。 例句：The laptop makes it easier for people to work and study.（笔记本电脑使人们的工作和学习更便捷。） ③ of all time 有史以来；历来 例句：It is one of the greatest inventions of all time.（它是有史以来最伟大的发明之。） ④ in seconds 瞬间；立刻 例句：Smart Cook can make hundreds of dishes in seconds.（智能烹饪设备能瞬间做出数百道菜。） 二、Section A 核心句型 1. 询问发明时间 When was it invented? — It was invented in 1839. 解析：一般过去时被动语态的特殊疑问句，was置于主语前，in后接年份。 2. 询问发明者 Who was it invented by? — It was invented by Bell. 解析：by引出动作的发出者（发明者），用于强调发明者。 3. 描述发明影响 It makes it easier for people to... 例句：The mobile phone makes it easier for people to communicate.（手机使人们的交流更便捷。） 4. 评价发明 It is one of the greatest inventions of all time. （它是有史以来最伟大的发明之一。） 解析："one of + 形容词最高级 + 复数名词"表示"最……之一"。 三、Section B 词汇精讲 1. 核心词汇表 单词 词性 释义 派生/搭配 creative adj. 有创造力的；创新的 creativity (n. 创造力) creativity n. 创造力 show one's creativity thinker n. 思想家 a great thinker developer n. 开发者；研发者 develop (v.) / development (n.) basic adj. 基本的；基础的 basic rules / basically (adv.) method n. 方法；方式 try new methods research n./v. 研究；调查 do research on / research results achieve v. 实现；达到 achievement (n.) / achieve one's dream achievement n. 成就；成绩 great achievements 2. 核心短语精讲 ① come up with 想出；提出（主意、计划等） 注意：come up with 无被动形式，不用于被动语态。 例句：Great thinkers always come up with new ideas.（伟大的思想家总能想出新点。） ② do research on 对……做研究 例句：They did lots of research on new methods.（他们对新方法做了大量研究。） ③ stick to 坚持；坚守 用法：to为介词，后接名词、代词或动名词。 例句：He stuck to his research day and night.（他日夜坚持他的研究。） ④ be known for 因……而闻名 辨析：be known for（因……而闻名，表原因）/ be known as（作为……而闻名，表身）/ be known to（为……所知晓，表范围） 例句：He is known for his creative thinking.（他因创新思维而闻名。） ⑤ make contributions to 为……做贡献 用法：to为介词，后接名词或动名词。 例句：They made great contributions to social progress.（他们为社会进步做出了巨大贡献。） 四、语法专题：被动语态 【一般现在时 & 一般过去时被动语态】 1. 被动语态的基本概念 当主语是动作的承受者（而非发出者）时，使用被动语态。 主动：Bell invented the telephone. 被动：The telephone was invented by Bell. 2. 被动语态的基本结构 被动语态 = be动词 + 及物动词的过去分词 时态 结构 例句 一般现在时 am/is/are + done English is spoken in many countries. 一般过去时 was/were + done The camera was invented in 1839. 3. be动词的选择规则 1. 单数主语 → is (一般现在时) / was (一般过去时) 1. 复数主语 → are (一般现在时) / were (一般过去时) 1. I → am (一般现在时) / was (一般过去时) 1. 记忆口诀：被动语态be加done，单数is/was复数are/were，时态看be动词变。 4. 主动变被动的方法 步骤一：将主动句的宾语变为被动句的主语 步骤二：将主动句的谓语动词变为"be + 过去分词"，时态与原句一致 步骤三：将主动句的主语变为by短语（可省略） 例：Edison invented the light bulb. → The light bulb was invented by Edison. 5. 被动语态的句式变化 （1）肯定句：主语 + was/were + 过去分词 (+ by...) The laptop was invented in the 20th century. （2）否定句：主语 + was/were + not + 过去分词 (+ by...) The laptop was not invented in the 19th century. （3）一般疑问句：Was/Were + 主语 + 过去分词 (+ by...)? Was the laptop invented in the 20th century? — Yes, it was. / No, it wasn't. （4）特殊疑问句：疑问词 + was/were + 主语 + 过去分词 (+ by...)? When was the laptop invented? — It was invented in the 20th century. Who was the telephone invented by? — It was invented by Bell. 6. 被动语态使用场景 1. 强调动作的承受者，而非发出者 1. 不知道或无需说明动作的发出者 1. 客观描述事物的制作、发明、生产过程 1. 科技说明文、人物传记类文本中常用 7. 易错点警示 1. 易错1：主谓一致错误。Products is made in China. (×) → Products are made in China. (√) 1. 易错2：过去分词拼写错误。It was write by him. (×) → It was written by him. (√) 1. 易错3：主动被动混用。The camera invented in 1839. (×) → The camera was invented in 1839. (√) 1. 易错4：不及物动词无被动。The accident was happened yesterday. (×) → The accident happened yesterday. (√) 五、课文要点解读 Section A 听说文本要点 听力对话围绕"经典发明"话题展开，主要涉及以下信息： 1. 发明物品：camera（照相机）、laptop（笔记本电脑） 1. 发明时间：camera — hundreds of years ago；laptop — in modern times 1. 发明影响：camera helps people record beautiful moments；laptop makes it easier for people to work and study 1. 核心句型：When was it invented? / It was invented in... / It makes it easier for... Section B 阅读文本要点 阅读课文为人物传记类文本，介绍伟大思想家与发明家的成长经历、创新精神与伟大成就： 1. 文本主线：人物探索 → 坚持研究 → 取得成就 → 精神影响 1. 探索态度：keep thinking, stick to research, never give up 1. 研究方式：do research on basic rules, try new methods, come up with new ideas 1. 核心成就：create new inventions, make great contributions to society 1. 精神品质：creative, hard-working, persistent, brave to break through 1. 主题升华：Power of Ideas — 思想的力量改变世界，创新与坚持是成功的关键 单元主题理解 "Power of Ideas"（思想的力量）贯穿全单元。伟大的发明源于伟大的思想，而伟大的思想需要坚持与创新来变为现实。从Section A的发明物品介绍，到Section B的发明家精神感悟，单元层层递进，引导学生理解： 1. 创意改变生活 — 发明让世界更便捷 1. 坚持成就梦想 — 科学家通过不懈研究取得突破 1. 思想引领未来 — 创新精神推动人类进步 03 题型突破 析考点·破方法：典型题型深度拆解 考点一：被动语态句型转换 【方法指导】 主变被三步法：①找宾语→②变be+done→③加by短语。注意时态保持一致！ 【典型例题】 1. People invented the camera hundreds of years ago.（改为被动语态） 【参考答案】The camera was invented hundreds of years ago. 2. Bell invented the telephone in 1876.（改为被动语态） 【参考答案】The telephone was invented by Bell in 1876. 3. The laptop was invented in the 20th century.（对划线部分提问） 【参考答案】When was the laptop invented? 4. People use mobile phones every day.（改为被动语态） 【参考答案】Mobile phones are used every day. 5. They built the bridge in 1990.（改为被动语态） 【参考答案】The bridge was built in 1990. 考点二：词汇辨析与搭配 【辨析1】invent / discover / create 1. invent：发明（以前不存在的东西），如 invent the telephone 1. discover：发现（已存在但不为人知），如 discover America 1. create：创造；创作（强调原创性），如 create a new method 【辨析2】be known for / as / to 1. be known for：因……而闻名（表原因）— He is known for his inventions. 1. be known as：作为……而闻名（表身份）— He is known as a great inventor. 1. be known to：为……所知晓（表范围）— He is known to people all over the world. 【典型例题】 6. Edison ________ the light bulb. He was a great ________. (invent) 【参考答案】invented; inventor 7. The scientist is known ________ his great achievements. 【参考答案】for（因……而闻名用for） 8. Great thinkers always ________ new ideas to solve problems. (come up with / think over) 【参考答案】come up with（想出新点子用come up with） 9. He ________ to his research and never gave up. (stick / stuck) 【参考答案】stuck（过去式，stick的过去式为stuck） 考点三：单项选择突破 【方法指导】 单选解题四步法：①读题干判时态→②辨主被动关系→③查主谓一致→④验搭配与语境。 【典型例题】 10. — Where is Moutai ________? — In Guizhou, China. A. make B. made C. making D. to make 【参考答案】B（省略in的被动语态，表产地） 11. The camera ________ hundreds of years ago. A. invents B. invented C. was invented D. is invented 【参考答案】C（一般过去时被动语态，hundreds of years ago表过去） 12. Great inventions have a great ________ on our life. A. influence B. affect C. effect D. both A and C 【参考答案】D（have an effect/influence on 均可） 13. The table is made ________ wood and the paper is also made ________ wood. A. of; of B. from; from C. of; from D. from; of 【参考答案】C（桌子能看出木头用of；纸看不出原料用from） 14. I find ________ strange that my sister doesn't want to see a film. A. it B. this C. that D. one 【参考答案】A（it作形式宾语，that从句为真正宾语） 15. The Great Wall ________ its long history and special beauty. A. is known for B. is known as C. is known to D. knows for 【参考答案】A（因……而闻名用be known for） 16. To keep healthy, ________ touching your eyes, nose and mouth. A. enjoy B. practice C. keep D. avoid 【参考答案】D（avoid doing，避免做某事） 17. We ________ to study hard in order to have a bright future. A. tell B. told C. are told D. were told 【参考答案】C（一般现在时被动语态，表客观要求） 考点四：完形填空突破 【方法指导】 完形三步法：①通读全文抓大意→②结合语境选最佳→③回读验证查逻辑。重点关注被动语态考点！ 【实战训练】 阅读下面短文，从各题所给的选项中选出最佳答案。 Great inventions play an important role in our life. Many daily things we use 18 invented by great inventors. The camera 19 invented hundreds of years ago. It helps people 20 beautiful moments. The laptop is another useful invention. It 21 invented in modern times. It makes it 22 for people to work and study. All these great inventions have a great 23 on people's life. They change the world and make our life 24 convenient and colorful. We should learn from great inventors. They are 25 and hard-working. They always 26 to their research and never give up. Their great achievements 27 through long-term research. The power of their ideas 28 generations of people. 18. A. is B. are C. was D. were 【参考答案】D（many things为复数，过去时被动用were） 19. A. is B. was C. are D. were 【参考答案】B（camera单数，过去时被动用was） 20. A. record B. recording C. recorded D. to recording 【参考答案】A（help sb. do sth.） 21. A. is B. was C. are D. were 【参考答案】B（laptop单数，过去时被动用was） 22. A. easy B. easier C. easily D. more easily 【参考答案】B（make it + adj. + to do，比较级easier） 23. A. effect B. affect C. effort D. afford 【参考答案】A（have a great effect on） 24. A. most B. more C. much D. many 【参考答案】B（convenient和colorful并列，用比较级more） 25. A. creative B. create C. creativity D. creation 【参考答案】A（形容词作表语） 26. A. stick B. stuck C. sticking D. to stick 【参考答案】B（过去时，stick的过去式stuck） 27. A. made B. are made C. were made D. was made 【参考答案】C（achievements复数，过去时被动用were made） 28. A. influence B. influences C. influenced D. is influencing 【参考答案】B（一般现在时，主语power为单数用influences） 考点五：阅读理解突破 【方法指导】 阅读三步法：①速读抓主旨→②细读找细节→③回读定答案。人物传记类注意梳理"经历-成就-精神"线索。 【实战训练】 阅读下面短文，选择正确答案。 Great ideas and creative minds change the world. Many great thinkers and inventors in history have made great contributions to our world. They are creative and hard-working. They always stick to their research and never give up easily. When they meet difficulties, they will come up with new methods to solve problems. Their great achievements were made through long-term research and persistent efforts. The power of their ideas influences generations of people. It tells us that thinking, persistence and innovation are the key to success. 29. What is the main idea of the passage? A. The power of great ideas and spirits. B. The history of old inventions. C. The ways to avoid difficulties. 【参考答案】A 30. What quality do great inventors have? A. Lazy and careless. B. Creative and persistent. C. Shy and quiet. 【参考答案】B 31. What can we learn from the passage? A. Great ideas have no power. B. Persistence and innovation are important. C. We should never do research. 【参考答案】B 32. The underlined word "persistent" in the passage means ________. A. 坚持的 B. 短暂的 C. 容易的 【参考答案】A 33. According to the passage, great achievements were made through ________. A. luck B. long-term research and persistent efforts C. money 【参考答案】B 考点六：书面表达突破 【写作模板】介绍一项伟大发明 第一段：引入话题 + 发明名称 第二段：发明时间、发明者（被动语态）+ 发明影响 第三段：评价 + 主题升华 【范文展示】My Favorite Great Invention There are many great inventions in the world. My favorite invention is the camera. It was invented hundreds of years ago. It is very useful in our daily life. It can help us record beautiful moments. It has a great effect on our life and makes our life more colorful. I think it is one of the greatest inventions of all time. 【亮点句型】 1. It was invented + 时间（被动语态） 1. It has a great effect on...（核心短语） 1. It makes our life more + adj.（make句型） 1. It is one of the greatest inventions of all time.（评价句型） 【写作模板】介绍一位伟大的发明家 第一段：引入人物 + 身份介绍 第二段：成就与贡献（被动语态 + 核心短语） 第三段：精神品质 + 主题感悟 【范文展示】The Power of Great Minds Great minds have great power. Many great thinkers and inventors changed the world with their creative ideas. They stuck to their research and never gave up. Lots of useful inventions were created by them. They made great contributions to social progress. Their spirits encourage us to keep thinking and exploring. I believe persistent thinking and innovation will help us make more achievements in the future. 七、综合训练题 一、根据句意及首字母提示完成单词 1. Edison was a great i________. He i________ many useful things. 【参考答案】inventor; invented 2. The camera was i________ hundreds of years ago. 【参考答案】invented 3. The laptop makes it e________ for people to work. 【参考答案】easier 4. Great thinkers always come up with new i________. 【参考答案】ideas 5. He s________ to his research and never gave up. 【参考答案】stuck 6. These great people made c________ to the world. 【参考答案】contributions 7. The telephone was invented by B________ in 1876. 【参考答案】Bell 8. His c________ helped him make many new inventions. 【参考答案】creativity 二、用所给词的适当形式填空 9. Edison is a great ________ (invent). 【参考答案】inventor 10. Many useful ________ (invent) change our life greatly. 【参考答案】inventions 11. The new machine ________ (make) in 2010. 【参考答案】was made 12. Great inventions have a great ________ (influence) on our life. 【参考答案】influence 13. He is a ________ (create) young inventor. 【参考答案】creative 14. His ________ (create) helps him make many new inventions. 【参考答案】creativity 15. Many great ________ (achieve) were made in the past century. 【参考答案】achievements 16. These ideas ________ (change) people's life greatly. 【参考答案】changed 三、句型转换 17. People invented the camera hundreds of years ago.（改为被动语态） 【参考答案】The camera was invented hundreds of years ago. 18. The laptop was invented in the 20th century.（对划线部分提问） 【参考答案】When was the laptop invented? 19. Bell invented the telephone.（改为被动语态） 【参考答案】The telephone was invented by Bell. 20. Great inventions have a great effect on our study and life.（英译汉） 【参考答案】伟大的发明对我们的学习和生活有很大影响。 21. 伟大的发明因改变世界而闻名。（汉译英，用be known for） 【参考答案】Great inventions are known for changing the world. 四、书面表达 请根据本单元所学内容，写一篇60-80词的短文，介绍你最喜欢的发明或发明家。 要求： 1. 运用一般过去时被动语态 1. 使用本单元核心词汇与短语（至少3个） 1. 语句通顺，逻辑清晰，观点积极 【参考范文】 My favorite invention is the mobile phone. It was invented many years ago. It has a great effect on our daily life. It makes it easier for people to communicate with each other. We can use it to call, send messages and surf the Internet. It is one of the greatest inventions of all time. I think great ideas can change the world and make our life better. 第 1 页 共 21 页 学科网（北京）股份有限公司 $