Unit 5 Power of Ideas 单元写作专项训练 2026-2027学年人教版英语九年级上册

该初中英语学习任务单以“Unit 5 Power of Ideas”为主题，聚焦发明类写作能力培养，通过“写作素材库-黄金句型库-高分写作方法-阶梯训练”的递进式设计，构建从词汇积累、句型运用到篇章创作的完整学习路径，引导学生逐步掌握发明介绍、过程描述及影响分析的写作技能。 亮点在于“阶梯训练”的分层设计，从汉译英、句型仿写、句子升级到篇章写作，结合“句型升级”实例（如将基础句扩展为含时间、材料细节的丰富表达），培养学生语言能力和思维品质。任务单提供主题词汇、功能表达及高分方法，既支持学生系统复习，也为教师实施单元写作教学提供清晰指导，促进深度学习与能力提升。

Unit 5 Power of Ideas 单元写作专项训练 一、单元核心信息 二、写作素材库 1. 主题词汇 发明相关名词 invention 发明 inventor 发明家 creation 创造；作品 design 设计 material 材料 fibre 纤维 metal 金属 plastic 塑料 wood 木头 bark 树皮 bamboo 竹子 screen 屏幕 glue 胶水 ingredient 原料 liquid 液体 product 产品 production 生产 发明过程动词 invent 发明 create 创造 design 设计 produce 生产 develop 发展 improve 改进 experiment 实验 mix 混合 boil 煮沸 beat 搅拌 dry 弄干 press 压 spread 传播 lead to 导致 result in 造成 speed up 加速 描述特征的形容词 rapid 迅速的 cheap 便宜的 expensive 昂贵的 soft 柔软的 light 轻的 suitable 合适的 ideal 理想的 useful 有用的 creative 有创造力的 responsible 作为原因的 材料与工具 ingredient 原料 fibre 纤维 bark 树皮 jute 黄麻纤维 bamboo screen 竹筛 metal 金属 wood 木头 clay 黏土 silk 丝绸 bronze 青铜 ware 制品；陶器 2. 高频搭配 be invented by 由……发明 be used for 被用来做…… be made of / from 由……制成 lead to 导致；造成 result in 造成；导致 speed up 加速 later on 后来；其后 all over the world 全世界 hundreds of 数以百计 take place 发生 depend on 依靠；依赖 in one’s times 在某人的时代 from past experiences 从过去的经验中 to one’s surprise 令某人惊讶的是 in the first step 第一步 3. 写作功能表达 介绍发明 ... was invented by ... in ... ……由……在……年发明。 It is used for ... 它被用来…… ... is one of the most important inventions. ……是最重要的发明之一。 描述发明过程 First，... Then ... Next ... Finally ... 首先……然后……接着……最后…… It was made of / from ... 它由……制成。 The inventor had difficulty in ... 发明者在……方面有困难。 描述影响与作用 The invention changed the way we ... 这项发明改变了我们……的方式。 It led to / resulted in ... 它导致了…… Without it，we could not ... 没有它，我们就不能…… 三、黄金句型库 1. 开头句型 Can you imagine a world without ...？ 你能想象一个没有……的世界吗？ One of the most important inventions in history is ... 历史上最重要的发明之一是…… The invention of ... has greatly changed the world. ……的发明极大地改变了世界。 I would like to introduce an important invention. 我想介绍一项重要的发明。 2. 主体句型 ... was invented by ... in ... ……由……在……年发明。 In ancient times，people used ... to ... 在古代，人们用……来…… Before this invention，people had to ... 在这项发明之前，人们不得不…… The inventor came up with a creative idea to solve the problem. 发明者想出了一个有创意的办法来解决这个问题。 It was made of ... and it was cheap and easy to make. 它由……制成，便宜且容易制作。 First，the materials were mixed and boiled. Then ... 首先，材料被混合煮沸。然后…… 3. 结尾句型 The invention changed the way we live and think. 这项发明改变了我们生活和思考的方式。 It not only ... but also ... 它不仅……而且…… Without doubt，it is one of the greatest inventions of all time. 毫无疑问，它是有史以来最伟大的发明之一。 This invention shows that creative ideas can change the world. 这项发明表明，创意可以改变世界。 4. 句型升级 基础句 升级句 Paper was invented by Cai Lun. 纸是蔡伦发明的。 Papermaking was invented by Cai Lun in the Eastern Han Dynasty around 105 CE. 造纸术由蔡伦在公元105年左右的东汉时期发明。 Early people wrote on many things. 早期的人们在很多东西上写字。 In ancient China，many different materials were used to write on，such as animal bones，bronze wares，stones，and silk. 在中国古代，许多不同的材料被用来写字，如兽骨、青铜器、石头和丝绸。 Cai Lun made a new kind of paper. 蔡伦制作了一种新纸。 In the first step，all the ingredients were mixed and boiled in water. Then the material was beaten and cut up. 第一步，所有原料在水中混合煮沸。然后材料被捶打和切碎。 Paper changed the world. 纸改变了世界。 Later on，the papermaking technique sped up the development of Chinese culture and also changed civilizations around the world. 后来，造纸术加速了中国文化的发展，也改变了世界各地的文明。 Cai Lun’s paper was good. 蔡伦的纸很好。 To everyone’s surprise，this paper was soft，light，easy to make and use，and most importantly，cheap. 令所有人惊讶的是，这种纸柔软、轻便、易于制作和使用，最重要的是，便宜。 四、高分写作方法 Step 1 审题定位 明确写作任务为“写一篇关于一项发明的文章”。写作内容应包括发明的名称和发明者、发明的时间和原因、发明过程中遇到的困难、解决问题的过程、发明的主要用途及对生活的影响。 写作形式： 短文（Article） 写作对象： 老师或同学 时态要求： 一般过去时（描述发明过程）和一般现在时（描述用途和影响）并用 Step 2 搭建结构 第一段：介绍背景 介绍发明名称、发明者、发明时间和发明原因，点明这项发明的重要性。 第二段：描述过程 描述发明过程：遇到了什么困难、发明者如何产生创意、发明是如何一步步完成的。按时间顺序（First... Then... Next... Finally...）组织内容，使用被动语态。 第三段：突出价值 说明这项发明的主要用途和对人们生活的影响，表达对这项发明的评价。 Step 3 丰富内容 不要只简单介绍发明，要加入具体的历史背景、发明细节和影响事例。例如不只写“Cai Lun invented paper.”，还要写“In ancient China，many different materials were used to write on，such as animal bones and silk. These materials were either difficult to use or very expensive.” Step 4 提升语言 使用被动语态（was invented，was made，were used）、一般过去时和一般现在时、连接词（because，so，when，and，not only...but also...）以及顺序词（first，then，next，finally），使文章结构清晰、内容丰富。 Step 5 检查修改 检查内容是否完整（名称→发明者→原因→过程→用途→影响）、结构是否清晰（三段式）、被动语态是否正确、顺序词使用是否恰当、拼写和标点是否有误。 五、阶梯训练 （一）句子训练 Level 1 汉译英 1. 造纸术由蔡伦在公元105年左右的东汉时期发明。 ____________________________________________________________ 2. 在中国古代，许多不同的材料被用来写字。 ____________________________________________________________ 3. 所有原料在水中混合煮沸，然后材料被捶打和切碎。 ____________________________________________________________ 4. 令所有人惊讶的是，这种纸柔软、轻便、易于制作和使用。 ____________________________________________________________ 5. 造纸术加速了中国文化的发展，也改变了世界各地的文明。 ____________________________________________________________ Level 2 句型仿写（参照例句完成句子，共6个句型，每个句型2题，共12题） 句型 1：... was invented by ... in ...（介绍发明） 例句： Papermaking was invented by Cai Lun in the Eastern Han Dynasty. （1）印刷术由毕昇在宋代发明。 ____________________________________________________________ （2）电话由亚历山大·贝尔在1876年发明。 ____________________________________________________________ 句型 2：It is used for ...（描述用途） 例句： Paper is used for writing and printing. （1）电脑被用来处理信息和上网。 ____________________________________________________________ （2）手机被用来通话和发送信息。 ____________________________________________________________ 句型 3：In ancient times，... were used to ...（描述过去的方法） 例句： In ancient China，many different materials were used to write on. （1）在古代，石头被用来建造房屋。 ____________________________________________________________ （2）在过去，竹子被用来做书。 ____________________________________________________________ 句型 4：First ... Then ... Next ... Finally ...（描述步骤） 例句： First，all the ingredients were mixed and boiled. Then the material was beaten and cut up. Next，the liquid was poured over a screen. Finally，the fibre was dried and pressed. （1）首先，蔬菜被清洗和切碎。然后它们被放进锅里。接着它们被烹煮。最后，菜肴被端上桌。 ____________________________________________________________ （2）首先，信息被输入电脑。然后文件被创建。接着文件被发送到打印机。最后，文件被打印出来。 ____________________________________________________________ 句型 5：It was made of / from ...（描述材料） 例句： The paper was made from bark，plants and old clothes. （1）这座桥是由石头建成的。 ____________________________________________________________ （2）这把椅子是由木头做的。 ____________________________________________________________ 句型 6：The invention led to / resulted in ...（描述影响） 例句： The invention led to a rapid increase in the number of books. （1）这项发明导致了人们生活方式的巨大变化。 ____________________________________________________________ （2）这项技术加速了信息的传播。 ____________________________________________________________ Level 3 句子升级 要求：参照下方示例，将基础句升级为内容更丰富、表达更高级的句子。 示例： 基础句：Paper was invented by Cai Lun. 升级句：Papermaking was invented by Cai Lun in the Eastern Han Dynasty around 105 CE. 1. 基础句：Early people wrote on many things. 升级句：____________________________________________________________ 2. 基础句：Cai Lun made a new kind of paper. 升级句：____________________________________________________________ 3. 基础句：Paper changed the world. 升级句：____________________________________________________________ 4. 基础句：Cai Lun’s paper was good. 升级句：____________________________________________________________ 5. 基础句：The invention was important. 升级句：____________________________________________________________ 6. 基础句：People used paper to write. 升级句：____________________________________________________________ （二）篇章训练 1．在英语课上，你们班开展了一次以“The Power of Ideas”为主题的讨论。请你根据以下要点，用英语写一篇短文，向校英语报投稿，介绍一项你认为改变了世界的发明，并谈谈你的看法。要点提示： 1. 这项发明是什么（如：造纸术、火车、互联网等）； 2. 它被谁发明的，什么时候发明的； 3. 这项发明如何改变了世界； 4. 你对“想法的力量”的理解。 要求： 1. 包含所有提示要点，可适当发挥； 2. 注意使用本单元核心句型（被动语态、时间状语从句等）； 3. 词数100词左右（开头已给出，不计入总词数）。 参考词汇： invention 发明；papermaking 造纸术；spread 传播；shape 塑造；rapid 迅速的；result in 导致 开头： Throughout history, great ideas have led to great inventions that changed the world. In my opinion, one of the most important inventions is _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 2．在这个飞速发展的数字时代，人工智能，即AI，已经悄然渗入我们生活的方方面面。下周学校将举办题为“AI in Our Life”的中英双语演讲比赛。请根据以下提示写一篇英文演讲稿。 内容要点： 1. AI的好处。 2. AI在生活中对你的帮助。 3. 对AI过度依赖带来的影响。 写作要求： 1. 参考思维导图，选取部分内容，也可自己发挥。（device设备） 2. 不得出现真实的学生姓名和学校名称。 3. 100词左右。（开头已给出。不计入总词数。） AI in Our Life Hello, everyone! Today, I want to talk about AI in our life. AI has brought many benefits. _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 3．写一段话（至少5句）介绍造纸术的发明过程（用中文或英文均可，但鼓励英文）。说明使用了哪些材料，步骤有哪些，以及这项发明的重要性。使用 first / then / next / finally 等顺序词。 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 参考答案 Level 1 汉译英 1. Papermaking was invented by Cai Lun in the Eastern Han Dynasty around 105 CE. 2. In ancient China，many different materials were used to write on. 3. First，all the ingredients were mixed and boiled. Then the material was beaten and cut up. 4. To everyone’s surprise，this paper was soft，light，easy to make and use. 5. The papermaking technique sped up the development of Chinese culture and also changed civilizations around the world. Level 2 句型仿写 句型 1 （1）Printing was invented by Bi Sheng in the Song Dynasty. （2）The telephone was invented by Alexander Bell in 1876. 句型 2 （1）Computers are used for processing information and going online. （2）Mobile phones are used for making calls and sending messages. 句型 3 （1）In ancient times，stones were used to build houses. （2）In the past，bamboo was used to make books. 句型 4 （1）First，the vegetables were washed and cut. Then they were put into the pot. Next，they were cooked. Finally，the dish was served. （2）First，the information was put into the computer. Then a file was created. Next，the file was sent to the printer. Finally，the file was printed out. 句型 5 （1）The bridge was made of stone. （2）This chair was made of wood. 句型 6 （1）The invention led to great changes in people’s way of life. （2）This technology sped up the spread of information. Level 3 句子升级 （以下为参考升级答案，其他合理升级也可接受） 1. 升级句：In ancient China，many different materials were used to write on，such as animal bones，bronze wares，stones，wood，bamboo，and even silk. 2. 升级句：In the first step，all the ingredients were mixed and boiled in water. Then，this material was beaten，cut up，and mixed with water again. 3. 升级句：Later on，the papermaking technique sped up the development of Chinese culture and also changed civilizations around the world，leading to a rapid increase in the number of books. 4. 升级句：To everyone’s surprise，this paper was soft，light，easy to make and use，and most importantly，cheap. 5. 升级句：The invention was so important that it played a key role in the spread of knowledge and culture around the world. 6. 升级句：Paper was used not only for writing and printing，but also for recording history and spreading ideas across different countries. 篇章训练（参考范文） 1．例文 Throughout history, great ideas have led to great inventions that changed the world. In my opinion, one of the most important inventions is papermaking. Papermaking was invented by Cai Lun in the Eastern Han Dynasty around 105 CE. After many experiments, he successfully made paper that was soft, light, and cheap. Papermaking changed the world in many ways. It made it easier to record and spread knowledge. Later, when paper and printing were used together, the number of books increased rapidly. This led to a new birth of knowledge that shaped our modern world. I believe the power of ideas lies in their ability to solve problems. Great ideas often come from observing daily life and asking questions. 2．例文 AI in Our Life Hello, everyone! Today, I want to talk about AI in our life. AI has brought many benefits. It helps doctors find out illnesses faster and more correctly. Also, it allows us to compare prices of products online, saving time and money. In my daily life, AI plays a helpful role. I use it to practice English. It corrects my pronunciation and helps me memorize words quickly. I also use AI to find some study materials. It’s easy and convenient. However, if we depend too much on it and don’t use our brain, our ability of deep thinking and some skills may be weak. Let’s use AI wisely, balancing its convenience with our own abilities. Only in this way can we make AI serve us better. 3．例文： Cai Lun invented papermaking in ancient China, which is a great creation. First, he collected materials like bark, plant fibers and old rags, then mixed them with water and boiled the mixture for a long time. Next, he beat the cooked materials into soft pulp and poured the pulp onto a fine bamboo screen to let water flow out. Finally, he dried the remaining fiber layer and pressed it to make thin, smooth paper. This invention was very important: it made writing much cheaper than using bamboo slips or silk. It also helped spread knowledge and culture around the world, so papermaking is seen as one of China’s most valuable contributions to human civilization. 学科网（北京）股份有限公司 $