Unit 3 Presenting ideas & Reflection 讲义 2026-2027学年英语外研版八年级上册

Unit 3 Make it happen!　Presenting ideas & Reflection 课时基本信息 课　　题 Unit 3 Make it happen! — Presenting ideas & Reflection 课　　型 展示课（第五课时·45分钟） 年　　级 八年级上册 版　　本 外研版（2024）英语八年级上册 教学重难点 【教学重点】 小组查资料选定一项发明，按 Problem—Solution—About the inventor—Materials—How it works 五栏制作发明展示板并在班级展示,掌握五栏支架句型：描述问题／给出解决方案／介绍发明者／说明材料／解释工作原理,掌握单元语言点：out of（由……制成）、what's worse、感叹句 What a(n)(+形容词)+单数名词、a helping hand、be curious about 【教学难点】 分析本课时主题的结构，积累相关表达与素材，形成清晰的知识结构框架,仿照所给内容进行写作与展示，完成知识迁移 词汇速览 out of /aʊt əv/ 由……制成，用……做成（He built it out of plastic blocks and fishing line. 他用塑料积木和钓鱼线做成了它。） what's worse /wɒts wɜːs/ 更糟糕的是（引出更糟糕或严重的情况，加重语气：It's raining, and what's worse, I left my umbrella at home.） a helping hand /ə ˈhelpɪŋ hænd/ 援手，帮助（Many times in my life I've needed a helping hand. 生命中的多少次，我需要一只援助之手。） be curious about /bi ˈkjʊəriəs əˈbaʊt/ 对……感到好奇（It is good to be curious about the world around you. 对你周围的世界感到新奇是件好事。） display board /dɪˈspleɪ bɔːd/ 展示板（Make a display board about an invention. 制作一块关于某项发明的展示板。） （一）Free talk · 发明的第一次 【过渡语】爱迪生试了 6000 多种灯丝——这节课你也要「发明」一回，先聊聊发明的成功率。 FREE TALK：What do you think of the process of inventions? Do you think inventions are successful at the first attempt? 你如何看待发明的过程？你认为发明第一次尝试就能成功吗？ 【提示框】 回答用「观点+数字/例子」：Most inventions fail many times. Edison tested over 6,000 substances...——为范文精读先埋线。 （二）Step 1 · 查资料与投票 任务导入：Make a display board about an invention. 制作一块关于某项发明的展示板。Great inventions could change our lives. In this unit, we explored inventions. Where do smart ideas come from? What qualities do inventors have? What drives people to invent? 伟大的发明能改变我们的生活——聪明的点子从哪来？发明家有什么品质？什么驱使人们发明？ Work in groups. Search for information about great inventions. They can be inventions from history or modern times. Talk about their inventors and importance. Take a group vote to decide on one invention. 小组查资料（历史或现代发明皆可），谈论其发明者与重要性，投票决定聚焦的一项发明。信息三要素：name of invention 发明名称／the inventor 发明者／its importance 重要性。 【知识点】 ▶选题三要素：name（名称）＋inventor（发明者）＋importance（重要性）——查资料按三要素分工，效率最高。 （三）提纲一 · Problem 与 Solution Prepare your display board and use the following outline to organise your ideas. 借助提纲制作展示板。Problem 问题：People wanted something... 人们想要……／People had a hard time... 人们做……很困难，They wished... 他们希望……／The world faced the challenge of... 世界面临……的挑战／Society struggled with... and desperately needed... 社会受困于……并迫切需要…… Solution 解决方案：The answer was to... 答案是……／... decided to invent a... It was able to... 决定发明……它能够……／This revolutionary design addressed... by... 这项革命性设计通过……解决了……／Unlike previous attempts, this invention could... 与以往的尝试不同，这项发明能够…… 【知识点】 ▶问题—方案对句：Problem 栏用「wanted / had a hard time / faced the challenge」摆困境，Solution 栏用「The answer was to... / Unlike previous attempts...」给出路——一困一解，前后呼应。 【提示框】 Problem 写得越具体，Solution 越有说服力——先说「昏暗、危险、低效」再亮「耐用灯泡」，对比感立刻出来。 （四）提纲二 · About the inventor About the inventor 关于发明者：..., a... scientist / inventor, was curious about... ……是一位……科学家/发明家，对……感到好奇／He / She spent years studying... 他/她花多年研究……／Finally he / she... 最终他/她……／Driven by fascination with..., ... dedicated their life to... 出于对……的痴迷，……毕生致力于……／Having observed..., ... became determined to... 观察到……后，……决心……／After numerous failed experiments, ... finally... 在无数次失败的实验之后，……终于……／While working as a..., ... noticed... and wondered... 在做……时，……注意到……并好奇……／Despite skepticism from others, ... persisted in... 尽管他人质疑，仍坚持…… 【知识点】 ▶发明者介绍三件套：身份与好奇（a... inventor, was curious about...）＋过程（spent years studying...）＋结果（Finally...）——加一句「质疑中坚持」人物立刻立体。 【提示框】 套用课文句式最稳：He spent years studying... 与 After numerous failed experiments, ... finally... 都是现成模板。 （五）提纲三 · Materials 与 How it works Materials 材料：... made it out of... 用……制成……／Using..., ... invented the... 用……发明了……／Using commonly available..., ... engineered... 用常见易得的……设计了……／Through trial and error with different..., ... discovered... 通过对不同……的反复试验发现了…… How it works 工作原理：It is able to work with... ／Once it senses..., it starts... 一旦感应到……就开始……／Its unique design allows it to... when detecting... 独特的设计使它在探测到……时能够……／By means of..., the invention can simultaneously... 借助……，这项发明能够同时…… 【知识点】 ▶材料与原理分工：Materials 说「用什么做的」（made it out of...），How it works 说「怎么运作的」（Once it senses..., it starts...）——两栏合起来才是完整的发明说明。 【提示框】 原理栏学智能拐杖句式：Once it senses an object, it starts shaking——「一旦……就……」是万能模板。 （六）Step 3 & 4 · 展示与评优 【过渡语】展示板做好了——上台讲清楚五栏内容，让你的发明被更多人看见。 Step 3：Practise and present your display board to the class. 练习并向全班展示你们的展示板。 Step 4：Vote on the best three display boards and the best three presentations. 投票选出最佳三块展示板与最佳三个展示。 【提示框】 展示按五栏顺序推进：Problem→Solution→Inventor→Materials→How it works——一人一栏轮讲，人人有份。 展示板五栏结构页 （七）范文精读 · 电灯泡展示板 范文 A display board about an invention：Before the light bulb, people relied on candles and oil lamps, which were dim, dangerous, and inefficient. Homes and workplaces needed a safer, brighter, and more reliable light source. 电灯泡之前，人们依赖昏暗、危险、低效的蜡烛和油灯，家庭与工作场所需要更安全、更明亮、更可靠的光源。【Problem】Thomas Edison found the answer by creating a long-lasting electric light bulb. Unlike previous attempts, his design used a carbonized bamboo filament inside a vacuum glass bulb, allowing it to glow for hours without burning out. 爱迪生发明了耐用的电灯泡——真空玻璃泡内的碳化竹丝灯丝可持续发光数小时而不烧断。【Solution】 Edison, a curious and determined American inventor, spent years experimenting with different materials. He tested over 6,000 substances before discovering the perfect filament. His persistence revolutionized modern lighting. 好奇而坚定的美国发明家爱迪生用多年试验不同材料，测试了 6000 多种物质才找到完美灯丝，他的坚持革新了现代照明。【About the inventor】The bulb was made of a glass enclosure, a carbon filament, and metal wires. 灯泡由玻璃外壳、碳丝和金属线组成。【Materials】When electric current passes through the filament, it heats up and emits light. The vacuum inside the bulb prevents oxidation, making the bulb last longer. 电流通过灯丝时发热发光，泡内真空防止氧化，让灯泡更耐用。【How it works】带领学生标注范文五段与五栏的对应关系。 【知识点】 ▶范文五段对五栏：Problem（昏暗危险低效）→Solution（碳化竹丝真空灯泡）→Inventor（6000 多次试验的坚持）→Materials（玻璃壳+碳丝+金属线）→How it works（电流发热发光、真空防氧化）——结构工整可直接搬。 【提示框】 范文亮点：数字（6,000 substances）与因果链（真空防氧化→更耐用）——你的展示板也要有「一个数字+一条因果」。 电灯泡范文页 （八）语言点精讲 · 单元回顾五讲 语言点 1 out of：He built it out of plastic blocks and fishing line.（课文句）句中 out of 意为「由……制成，用……做成」——a toy boat carved out of wood 一只木头雕成的玩具小船／The necklace is made out of gold. 这条项链是金制的。／The children like hats made out of branches. 孩子们喜欢用树枝编帽子。 语言点 2 what's worse：What's worse, children like her grow quickly and need new arms all the time.（课文句）what's worse 意为「更糟糕的是」，用来引出一个更加糟糕或严重的情况，通常用来加重语气，强调比较——I forgot my wallet at home, and what's worse, my phone is out of power. 我把钱包忘在家里了，更糟糕的是，我的手机没电了。 语言点 3 感叹句与 a helping hand：What a helping hand!（课文句）本句是感叹句句型：What a(n) (+ 形容词) + 单数名词。What a nice dress! 多漂亮的连衣裙啊！What a surprise! 真是没料到的事！a helping hand 意为「援手，帮助」——Many times in my life I've needed a helping hand. 生命中的多少次，我需要一只援助之手。 语言点 4 be curious about：He was so curious about space that he invented a "flying chair"!（课文句）be curious about 意为「对……感到好奇」——It is good to be curious about the world around you. 对你周围的世界感到新奇是件好事。He was curious about how she would do. 他很想知道她会怎么做。 【知识点】 ▶五点回扣课文：out of（积木+钓鱼线）／what's worse（孩子长得快）／What a helping hand!（感叹句+援手）／be curious about（飞椅的起点）——四个语言点串起 Easton 与万户两个发明故事。 【提示框】 随堂检测四题对应 out of／a helping hand／curious about／what's worse——感叹句和 be curious about 都在课文句里，背句即背考点。 be curious about 讲解页 （九）随堂检测 限时独立完成随堂检测（本课语言点），完成后同桌互批，逐题核对订正。 1. out of　2. a helping hand　3. curious about　4. what's worse 一、根据句意及汉语提示补全句子 1. 很多东西是由竹子做出的。Many things are made _____________ bamboo. 2. 你认为你需要帮手吗？Do you think you can do with ________________? 3. 孩子们天生对周围的世界充满好奇心。Children are naturally _______________ the world around them. 4. 天下起了雨，更糟糕的是，我把伞忘在家里了。It's raining, and _______________, I left my umbrella at home. （十）Reflection 与作业 单元反思：After completing this unit, I understand more about great inventions. 学完本单元，我对伟大的发明有了更多理解。What leads to inventions? 什么催生了发明？——Inventions come from problems to be solved. 发明源于待解决的问题；Inventions come from curiosity. 发明源于好奇心（语境推断）；Inventions come from courage to try. 发明源于尝试的勇气（语境推断）。 自评清单：To express my understanding, I can... ☐ use words and expressions in the unit to talk about inventions. 能用本单元词汇谈论发明；☐ use to-infinitive and -ing as object to talk about invention ideas. 能用不定式和动名词作宾语谈论发明创意；☐ explain the importance of invention. 能解释发明的重要性。I still need to improve: ____________ 我仍需提高：…… Homework：Review the key words, expressions and sentence patterns in today's lesson. 复习本课重点词汇、短语与句型。Make a display board about an invention. 制作一块关于某项发明的展示板——以小组课堂成果为底稿，补全五栏、配图上色，做成可张贴的海报。 【知识点】 ▶发明三来源：problems（待解决的问题）→curiosity（好奇心）→courage to try（尝试的勇气）——对照自评清单三项逐条打勾，找出仍需提高的一项。 【提示框】 展示板作业五栏缺一不可，别忘了加一个「数字」（如试验次数）和一条「因果链」（如真空防氧化→更耐用）。 语言点归纳 课堂总结 本课为单元展示课（第五课时）：Free talk 热身——What do you think of the process of inventions? Do you think inventions are successful at the first attempt? 你如何看待发明的过程？你认为发明第一次尝试就能成功吗？任务主题：Make a display board about an invention. 制作一块关于某项发明的展示板——Great inventions could change our lives. In this unit, we explored inventions. Where do smart ideas come from? What qualities do inventors have? What drives people to invent? 伟大的发明能改变我们的生活，本单元我们探索了发明——聪明的点子从哪来？发明家有什么品质？什么驱使人们发明？Step 1：小组查资料——They can be inventions from history or modern times. 可以是历史或现代的发明，谈论其发明者与重要性，小组投票决定聚焦的一项发明（name of invention 发明名称／the inventor 发明者／its importance 重要性）；Step 2：借助提纲制作展示板，五栏——Problem 问题（People wanted something... 人们想要……／People had a hard time... 人们做……很困难，They wished... ／The world faced the challenge of... 世界面临……的挑战／Society struggled with... and desperately needed...）；Solution 解决方案（The answer was to... 答案是……／... decided to invent a... It was able to... 决定发明……它能够……／This revolutionary design addressed... by... ／Unlike previous attempts, this invention could... 与以往的尝试不同，这项发明能够……）；About the inventor 关于发明者（..., a... scientist / inventor, was curious about... ／He / She spent years studying... 花多年研究……／Finally he / she... ／Driven by fascination with..., ... dedicated their life to... ／Having observed..., ... became determined to... ／After numerous failed experiments, ... finally... 在无数次失败的实验之后……／Despite skepticism from others, ... persisted in... 尽管他人质疑仍坚持……）；Materials 材料（... made it out of... 用……制成／Using..., ... invented the... ／Through trial and error with different..., ... discovered... 通过对不同材料的反复试验发现了……）；How it works 工作原理（It is able to work with... ／Once it senses..., it starts... 一旦感应到……就开始……／Its unique design allows it to... when detecting... ／By means of..., the invention can simultaneously...）；Step 3：练习并向全班展示展示板；Step 4：投票选出最佳三块展示板与最佳三个展示。范文精读（爱迪生电灯泡）：Before the light bulb, people relied on candles and oil lamps, which were dim, dangerous, and inefficient. 电灯泡之前，人们依赖昏暗、危险、低效的蜡烛和油灯。Thomas Edison found the answer by creating a long-lasting electric light bulb. Unlike previous attempts, his design used a carbonized bamboo filament inside a vacuum glass bulb, allowing it to glow for hours without burning out. 爱迪生发明了耐用的电灯泡——真空玻璃泡内的碳化竹丝灯丝可持续发光数小时而不烧断。Edison, a curious and determined American inventor, spent years experimenting with different materials. He tested over 6,000 substances before discovering the perfect filament. His persistence revolutionized modern lighting. 好奇而坚定的爱迪生用多年试验不同材料，测试了 6000 多种物质才找到完美灯丝。The bulb was made of a glass enclosure, a carbon filament, and metal wires. 灯泡由玻璃外壳、碳丝和金属线组成。When electric current passes through the filament, it heats up and emits light. The vacuum inside the bulb prevents oxidation, making the bulb last longer. 电流通过灯丝时发热发光，泡内真空防止氧化，让灯泡更耐用。Reflection 单元反思：What leads to inventions? 什么催生了发明？——Inventions come from problems to be solved. 发明源于待解决的问题；Inventions come from curiosity（语境推断）. 发明源于好奇心；Inventions come from courage to try（语境推断）. 发明源于尝试的勇气；自评清单（能否用本单元词汇谈发明／能否用不定式和动名词作宾语谈发明创意／能否解释发明的重要性）；I still need to improve. Review 语言点五讲。随堂检测 4 题。 学科网（北京）股份有限公司 $