Unit 3 Great Ideas 单元复习 课件 2026-2027学年仁爱科普版英语九年级上册

该初中英语课件围绕Unit 3 "Great Ideas"主题，系统梳理物品、材料及发明相关词汇，中国古代四大发明文化知识，以及后缀-en和被动语态语法要点。通过话题梳理构建“词汇-功能-语法-文化”知识网络，考点突破模块串联核心词汇、短语及语法应用，形成逻辑清晰的复习体系。 其亮点在于融合语言能力与文化意识培养，如角色扮演活动模拟发明访谈提升口语表达，写作任务引导学生分享创意发明培养思维品质。分层设计的考点例题（如be made of/from辨析）满足不同学生需求，助力教师精准复习，有效巩固单元知识。

Unit review Unit 3 Great Ideas 仁爱科普版英语九年级上册 Lead in Look and say: Say the words according to Chinese quickly. lock umbrella position war print lamp passport stamp balloon wheel jeans awake wake prize inventor 发明家 奖赏 唤醒 灯 醒着的 牛仔裤 印刷 气球 邮票 护照 战争 地位 雨伞 锁 轮子 话题梳理 话题：Great Ideas 功能：Talk about different objects, materials and life-changing inventions. （谈论各类物品、制作材料以及改变生活的发明） Talk about inventors, invention years and great ancient Chinese inventions. （谈论发明家、发明年份以及中国古代四大发明） Master the suffix -en and passive voice (simple present & simple past). （掌握后缀 - en，及一般现在时和一般过去时的被动语态） Discuss steps to create new inventions and share your dream invention. （探讨创造新发明的步骤，分享自己梦想中的发明） 话题梳理 Great ideas Objects, materials & their uses Grammar : suffix-en & Passive voice Four great ancient Chinese inventions —What’s amazing about the blue whale? —It’s the largest animal in the world. —What is it used for? —It is used for locking the door. Television broadens our minds and enriches our life. —What are the Four Great Inventions of ancient China? —Paper-making, printing, gunpowder and the compass. Steps to become an inventor & dream inventions —What’s your dream invention? —A smart hiking bag that can turn into a tent and roll itself. 考点突破 1. thinking about pleasant things while awake. (教材P52) ①The baby is still ________. She refuses to go to sleep at midnight. 小宝宝还醒着，半夜了她就是不肯睡觉。 ②I was ________ all night because of the loud noise outside. 外面嘈杂的声响吵得我一整晚都没睡着。 awake awake 考点突破 1. Thinking about pleasant things while awake. (教材P52) awake /əˈweɪk/ adj. 醒着的 ● stay awake 保持清醒 awake v. 唤醒；醒来（过去式 / 过去分词：awoke /awoken） My parents are still awake when I get home late. 我很晚到家时，父母还没睡。 I drank coffee so I stayed awake all night. 我喝了咖啡，所以一整晚都很清醒。 考点突破 2. You might just be the next great writer or inventor. (教材P52 ) ①Every great _________ loves to solve life’s problems. 每一位伟大的发明家都热爱解决生活中的难题。 ②Many young students dream of being an ________ in the future. 许多年轻学生梦想将来成为一名发明家。 inventor inventor 考点突破 2. You might just be the next great writer or inventor. (教材P52 ) invent v. 发明，创造 People invented paper-making thousands of years ago. inventor n. 发明者（指人） Cai Lun was an inventor in the Eastern Han Dynasty. invention n. 发明物，发明创造 （指事物） The compass is one of the Four Great Inventions. 考点突破 3. What’s the lock made of? (教材P38) ① This guitar ________ wood. You can see its wooden texture clearly. A. is made from B. is made of C. made of ② The lock ________ metal, so it is hard and strong. A. is made of B. are made of C. was made from B A 考点突破 3. What’s the lock made of? (教材P38) be made of 由……制成 结构：主语 + am /is/are + made of + 材料 The chopsticks are made of bamboo. 这双筷子是竹子做的。 be made of 看得见原材料，物理变化 The desk is made of wood. be made from 看不见原材料，深度加工变化 Paper is made from wood. be made in+地点，“在某地制造” This watch is made in China. be made by+人，“由某人制作” The model car was made by Tom. 5. be made into+成品 “被制成……” Wood can be made into paper. 考点突破 4. What is it used for? (教材P38) ① This metal lock ________ locking the door. A. is used to B. is used for C. used for ② Bamboo chopsticks ________ eating food in Chinese daily life. A. are used for B. used to C. are used by B A 考点突破 4. What is it used for? (教材P38) be used for 被用来做……（侧重物品的功能、用途） 结构：主语 + am/is/are + used for + (doing) sth. An umbrella is used for keeping off rain. 雨伞是用来挡雨的。 be used for doing sth. 被用来做某事（表用途，后接动名词） 例：Stamps are used for sending letters. be used to do sth. 被用来做某事（表用途，后接动词原形，和上句可互换） 例：Stamps are used to send letters. be used to doing sth. 习惯于做某事（to 是介词，后动名词） 例：I am used to getting up early. 考点突破 5. If you have some difficulties, ask for help from your friends, parents or teachers. （教材P49） ①Don’t _____ strangers _____ ______ alone. 不要独自向陌生人求助。 ②Inventors will _____ experts ____ ______ if they meet troubles. 发明家遇到难题时会向专家求助。 ask for help ask for help 考点突破 5. If you have some difficulties, ask for help from your friends, parents or teachers. （教材P49） ask sb. for help 向某人求助 I often ask my parents for help when I can’t finish my plan. 当我完不成计划时，我经常向父母求助。 同义替换： 例：I turn to my friends for help. = I ask my friends for help. turn to sb. for help = ask sb. for help 语法突破 Group 1 表材质的形容词：原单词（名词）+ -en → 形容词 wood（名词：木头）+ en = ________（形容词：木制的） wool（名词：羊毛）+ en = ________（形容词：羊毛制的） wooden woolen Group 2 表“使……”的动词：原单词（形容词）+ -en → 动词 broad（形容词：宽阔的）+ en = _________（动词：拓宽） short (形容词：短的）+en = ________（动词：使变短） wide (形容词：宽的）+en = ________（动词：使变宽） broaden shorten widen Summarize the rules of using passive voice of verbs. Part 1 概念区分 Active voice（主动语态）：主语是 ____________ Passive voice（被动语态）：主语是 ___________ 标志词：by + 动作发出者 动作发出者 动作承受者 The light bulb was invented by Thomas Edison. 灯泡是由托马斯・爱迪生发明的。 Paper-making was improved by Cai Lun. 造纸术是由蔡伦改良的。 语法突破 Part 2 两种时态被动结构 Tense Simple Present Simple Past Active basic form do/does did Passive Structure ____ /____/____ + 动词过去分词 (done) ____ /______ + 动词过去分词 (done) Time signs today, now, usually, every day in + 年份，last..., yesterday am is are was were 语法突破 语法突破 Part 3 被动语态的注意事项 1. be 动词单复数匹配： (1) 单数主语 / 不可数名词 → be 动词用 _____ /______ (2) 复数主语 → be 动词用 _____ /_______ 2. 动词变化：被动语态中，实义动词必须变为 _________ 3. 特殊提醒：appear, happen, take place, belong to, come true 等不及物动词及短语 ____（有/无）被动语态。 is was are were 过去分词 无 例如：The sports meeting will take place next week. 运动会将于下周举办。 The stamps first appeared in 1977. 邮票于1977年首次问世。 Task 1 Let’s role-play! Imagine you interview your classmate about great inventions and inventors. Discuss them with your partner, then role-play the conversation. — Which invention do you think changes our life most? — I think the light bulb changes our life most. — Who invented it and when? — It was invented by Thomas Edison in 1879. — Why do you think it is important? — It brings us light at night and makes our world brighter. Let’s write! Imagine you are preparing a speech for your school’s science club. Write a short essay to tell your classmates how to be creative. Opening: Do you want to be a(n)... Ways to get creative ideas: start by doing... Necessary attitudes: Never give up and...; keep on... Turn ideas into actions: carry (...) out Task 2 Closing: If you ..., you can ... Summary 话题梳理 Explore the meaning of home. Talk about objects, materials and their daily uses. Great Ideas Master two grammar points: the suffix -en and simple present / past passive voice. Learn about China’s Four Great Ancient Inventions. Learn the steps to create our own dream inventions. Summary 要点回顾 （1）We use the phrases be made of and be used for doing sth. to describe things. （2）Need is the mother of invention. （3）We learn the Four Great Inventions of ancient China and their inventors and influences. （4）Inventions will help make the world a safer and more convenient place. （5）语法：Suffix -en Passive voice (simple present & simple past) Homework 1. Review what we learned in this unit. 2. Preview Unit 4 A World of Words. Unit 3 Thank you! $