Unit5 Power of Ideas 写作指导清单 2026-2027学年人教版英语九年级上册

人教版九年级上册 Unit 5 Power of Ideas 写作指导清单 教材任务 · 重难点突破 · 范文赏析 · 迁移训练 这份清单紧扣新版教材九上 Unit 5 Power of Ideas 的语篇和写作任务编写。本单元语言核心是被动语态（一般现在时、一般过去时、情态动词+被动），话题是发明。Section A 课文讲了纸的发明如何改变世界，Section B 要求学生介绍一项自己熟悉的发明。写作指导就围绕"用被动语态说清它是什么、由谁/何时发明、用什么制成、怎样改变了世界"展开。建议先看教材任务，再练句型，最后对照范文和迁移训练自查。 一、教材写作任务再现 课本 Section A 围绕发明展开，Section B / Project 要求学生介绍一项重要发明： 任务：以 The Invention of Paper / The Smartphone 或我最想介绍的一项发明为题，写一篇说明文。 要点：1. 它是什么；2. 由谁、何时、用什么发明/制成；3. 它怎样改变了世界。 体裁：说明文；人称：第三人称为主；词数：90—110词。 教材语料：be invented by, be made from/of, be used for, be produced, result in, a new birth of knowledge。 二、本单元重难点突破 （一）核心语法：被动语态 本单元写作的灵魂是被动语态：一般现在时 am/is/are + done，一般过去时 was/were + done，情态动词 + be + done。介绍发明时，动作的承受者（发明物）作主语，正适合用被动。 课文原句迁移表 功能 课文原句 写作中怎么用 被发明 Paper was invented by Cai Lun in ancient China. 介绍发明者和时间 由……制成 At first, paper was made from trees and old cloth. 介绍材料 被用于 A mini-camera is used for taking photos. 介绍用途 被生产/改进 Books could be produced more quickly. / The process was improved. 介绍制作过程 造成结果 This resulted in a new birth of knowledge. 介绍影响 评价 Great ideas can change the world. 结尾点题 （二）易错点提醒 1. 被动别漏 be 和过去分词：Paper was invented（不说 Paper invented）。 2. 时态要对：介绍过去的发明用 was/were done，介绍现在的用途用 am/is/are done。 3. be made of 看得出原材料，be made from 看不出原材料。 三、课文语料迁移（可直接搬进作文） 分类 课文短语 发明词汇 invent, invention, inventor, create, discovery, high-speed train, smartphone 被动结构 be invented by, be made from/of, be used for, be produced, be improved 影响与结果 result in, lead to, change the world, a new birth of knowledge, make life easier 评价 one of the most important inventions, widely used, benefit people 四、范文与亮点解析 范文一：The Invention of Paper The Invention of Paper Paper is one of the most important inventions in the world. Before paper was invented, people wrote on stones, bamboo or silk. These materials were either difficult to use or very expensive. It is said that paper was invented by Cai Lun in ancient China around 105 AD. At first, paper was made from trees and old cloth. Later, the process was improved. As a result, books could be produced more quickly and cheaply. This resulted in a new birth of knowledge, creating the world we have today. Today paper is still widely used in our daily life. Great ideas can change the world, and paper is one of them. 亮点解析 文中句子 用到的本单元知识 paper was invented by Cai Lun 一般过去时被动语态 paper was made from trees and old cloth be made from 被动 books could be produced more quickly 情态动词 + be + done This resulted in a new birth of knowledge 课文原句点出影响 范文二：The Smartphone The Smartphone The smartphone is probably the most useful invention in our daily life. It was invented not long ago, but it has already changed the world greatly. A smartphone can be used for calling, reading, taking photos and surfing the Internet. We no longer carry maps or cameras, because everything is put into a small phone. However, the smartphone is also a double-edged sword. Too much time is spent on it, and our eyesight is harmed. In my opinion, the smartphone should be used wisely. It is a tool, not our master. When ideas are used well, they will make our life better. 亮点解析 文中句子 用到的本单元知识 A smartphone can be used for calling... 情态动词 + be + done everything is put into a small phone 一般现在时被动 Too much time is spent on it, and our eyesight is harmed. 一般现在时被动，两面评价 the smartphone should be used wisely 情态动词 should + be done 五、迁移运用（用被动语态写句子） 1. 纸是大约两千年前在中国发明的。（一般过去时被动） 2. 手机可以用来拍照和上网。（情态动词 + 被动） 3. 书是由木材制成的。（be made from） 参考答案 1. Paper was invented in China about two thousand years ago. 2. The smartphone can be used for taking photos and surfing the Internet. 3. Books are made from wood. 六、写作要点速记 项目 要点 话题 介绍一项发明 结构 它是什么 → 谁/何时/用什么制成 → 怎样改变世界 时态 发明过程用一般过去时，现在用途用一般现在时 要素 发明物 + 发明者/时间 + 材料 + 用途 + 影响 语法 被动语态：was/were done, am/is/are done, 情态动词 + be done 细节 至少用三种被动结构；结尾可两面评价（方便但要慎用） 学科网（北京）股份有限公司 $