内容正文:
Unit 3 Section B 2a~2b Writing教学设计2024-2025学年人教版英语七年级下册
教学目标
1.能正确拼读并运用本课核心词汇如"describe, appearance, structure, details, materials, purpose, adjust, suitability"等,掌握描述物品的常见句型结构,如"This is a... located at the..., which is made of... It has... and..."等,能准确表达物品的外观特征、功能结构及使用场景
2.能独立完成物品描述类短文写作,按"整体局部-功能"顺序组织内容,使用至少3个恰当形容词和2个比喻手法,通过同伴互评修改3处以上语法错误
3.理解描述物品类写作需关注"可感知性"和"功能性"两大特征,能通过语言细节构建清晰认知图景,体会汉语文化中"器以载道"的器物描写传统
4.通过对比中英文物品描写差异,掌握可视化写作辅助法,能运用思维导图整理写作要素,积累3个以上实用写作策略
教学重难点
教学重点:
掌握物品描述类写作的结构要素,能运用准确词汇及形象化表达呈现物品特征
教学难点:
区分物品描述与简单说明文差异,通过细节描写实现"可感知性",合理运用比喻修辞增强语言表现力
教材分析
Unit 3 Section B 2a~2b Writing是人教版七年级下册第三单元"Things around us"中的写作教学内容。本单元以"物品识别与描述"为核心话题,围绕"How to describe things"展开教学,旨在培养学生的观察描述能力与逻辑表达能力。写作任务要求学生能够按"整体局部-功能"顺序描述自己喜爱的物品,重点训练学生运用准确词汇和恰当句型进行细节描写。通过学习写作文本,学生能掌握基础的物性分析方法,理解器物与人类生活的关系,培养对日常事物的观察意识,为后续学习"what makes a good description"等写作技巧打好基础。本课时衔接2a的对话学习,延伸到2b的写作实践,帮助学生实现从口语表达到书面表达的过渡。
课前准备
准备描述物品的示例卡片(含书包、自行车、书桌等)、写作提纲模板、学生课前准备个人喜爱物品的实物或图片
课时安排 共2课时
教学过程
一、情境导入,激活经验
1.呈现不同物品的实物投影(书包、自行车、文具盒等)提问:Please describe what you see in detail.
(设计意图:通过真实物品激活学生原有认知,建立"观察描述"的直接关联)
2.展示"描述金字塔"示意图:Surface details→Function→User experience(表面特征→功能→使用体验)
师生互动:教师用英文描述课桌特征,学生用中文复述。比如:"This desk has a wooden top, four metal legs, a big drawer on the left and a small one on the right, which is suitable for holding stationery."
3.出示《清明上河图》局部图(文字描述代替视觉素材)提问:How can we describe such complex scenes with English words?
(设计意图:引入文化认知,建立中英文描述思维的关联对比)
二、范文分析,构建框架
1. 阅读2b写作范文,完成"观察记录表"(Activity 1)
(1)标出人物核心句型和词汇(如"This is a... which is made of...")
(2)绘制写作结构图:General description→Dismantling parts→Using process→Personal evaluation
(3)制作词汇云图,标注高频词(如color, size, shape, material, function)
2. 分组完成"结构拆解"任务(Activity 2)
学生分组用英文复述范文内容,教师给出提示问题:
①How does the writer start describing the item?(开头描述方法)
②What details about the parts are included?(部件描述细节)
③How is the usage process explained?(使用过程说明)
④What personal feelings are expressed?(情感表达方式)
3. 教师示范板书写作结构图,重点讲解以下要点:
(1)按空间顺序拆分部件的表达法:"It has a top layer... a middle compartment... the bottom part..."
(2)功能性描述的逻辑链:"This part is used for... so you can... therefore it's convenient for..."
(3)动态描述的方法:"You can open it by pressing the button... it moves smoothly with a small noise..."
三、写作实践,发展能力
(一)搭建写作脚手架
1. 完成"三问写作卡"(Activity 1)
(1)What is it?(物品名称)
(2)Where is it made?(制作材料)
(3)How do you use it?(使用方法)
2. 学习"五步描写法"(Activity 2)
(1)观察整体:State the general shape of the item
(2)分解部件:List 34 major parts with their positions
(3)描述材质:Explain materials used for each part
(4)说明功能:Connect each part to its purpose
(5)添加评价:Express personal opinion using indicators
例题解析:学生用"五步法"描述文具盒
Step 1: It is a rectangular plastic box with a metal latch
Step 2: The top has a transparent window, the middle contains two compartments, the bottom is for pens
Step 3: The window is made of thick acrylic, the compartments use soft sponge lining
Step 4: The window allows quick find of pencils, the sponge keeps pens from falling
Step 5: It's the best item I have because it's both practical and attractive
(二)自主写作与同伴互评
1. 写作任务:Write a 120word passage describing your favorite learning tool
2. 提供写作参考模板(Activity 3)
This is a [item name]. It is [adjective] with [material]. The [part1] is used for [purpose], and [part2] can [function]. When I use it, I [action verb]. I think it is [evaluation] because [reason].
3. 学生独立写作,教师巡视指导(Activity 4)
(1)提醒关注常用时态范围(一般现在时为主)
(2)示范如何转换中文描述为英语表达(如"书包有三个隔层"→"The bag has three separate compartments")
(3)指导使用"彩虹标记法"标注写作重点(红色标注结构词,蓝色标注功能词,绿色标注评价语)
4. 开展"三色修改"活动(Activity 5)
(1)红色标记:检查结构是否完整(整体局部-功能)
(2)蓝色标记:核查功能描述是否明确(每个部件对应使用说明)
(3)绿色标记:评估个人评价是否充分(包含3个以上正面/负面评价)
5. 小组互评与修改(Activity 6)
(1)交换作文,用铅笔批改3处以上错误
(2)围绕"Are the descriptions clear and complete?"开展讨论
(3)用句型"Aim: [评价特性和原因]"撰写修改意见
示例对话:A: The writing lacks the material description. B: I think the plastic case is good because it's durable.
四、思维建构,提升质量
(一)聚焦关键细节
1. 学生展示写作难点句,教师组织讨论(Activity 1)
(1)学生句子:"The pen has a red color, it can store pens"
(2)引导分析:Why is the second sentence incomplete? 强调功能描述需具体("It has a clip to attach to the notebook")
(3)教师示范:使用"box+功能"的复合结构("The bag is designed with a dedicated pen holder")
2. 开展"细节放大"挑战(Activity 2)
(1)每人需补充2个以上具体细节(如材质、颜色、特殊设计)
(2)展示改进前后对比(如"has four pockets"→"has three mesh pockets and one zip pocket designed for organization")
(二)掌握修辞技巧
1. 讲解比喻使用原则(Activity 3)
(1)教师举例:The computer's keyboard is like a musical instrument with its rows of keys
(2)学生仿写:The backpack is... ;The ruler is...
(3)设计"比喻筛选"游戏:判断between "The pen is like a fish"和"The pen like a ruler"哪个更合理
2. 指导排比运用(Activity 4)
(1)教师示范:It can hold pens, pencils, and rulers. It is light, practical, and beautiful.
(2)学生尝试用"can+名词"结构列举功能
(3)制作"排比句式升级卡":从简单列表到复杂句式("Not only does it... but also it...")
五、应用提升,拓展思维
(一)物品认知升级
1. 开展"观察能力训练"(Activity 1)
(1)教师给出半公开描述:"This item has wheels, a handle, and multiple drawers"
(2)学生猜测物品(如suitcase)并补充描述:"It is made of lightweight plastic"
(3)分组设计"猜物游戏",用描述性语句让同伴猜指定物品
2. 实践"逆向思维"写作(Activity 2)
(1)提供物品功能,学生反推结构特征
(2)例题:This item is used for carrying books and pens. What parts might it have?
(3)创作"功能结构"对应表
(二)文化认知延伸
1. 引导比较中英文描述差异(Activity 3)
(1)对比例句:"我的书包有三个隔层" vs "My bag has three storage areas"
(2)组织讨论:"Why do we need to use 'storage' instead of 'compartment' in English?"
(3)展示中国古籍中的物品描写片段(如《天工开物》中的工具描述)进行对比分析
2. 开展"文化观察"写作练习(Activity 4)
(1)要求描述中国传统文具(如砚台、毛笔)的结构特征
(2)示范转换:Old brush has a long bamboo handle, a soft rabbit hair part, and a wooden base
(3)分组创作"跨文化描述文",注意使用英文和中文的针对性词汇
六、总结反思,固化方法
1. 完成"写作评估量表"(Activity 1)
(1)自评维度:Structure, Detail, Grammar, Creativity
(2)小组互评使用"✔️❓-❌"符号标记
2. 开展"三点回顾"活动(Activity 2)
(1)What have you learned about describing things in English?
(2)What difficulties did you face in the writing process?
(3)How can you improve your description skills?
3. 教师总结写作要点(Activity 3)
(1)结构完整性:完整呈现三要素(外观、部件、功能)
(2)细节准确性:每个部件需有至少2个特征描述
(3)逻辑连贯性:使用sequence words(first, next, finally)连接各部分
4. 展示优秀作文片段,分析成功要素(Activity 4)
例文:"My calculator has a black plastic case, a lightup screen, and numbered keys. It can solve math problems quickly. I use it every day for class work."
七、分层作业,巩固提升
一、基础巩固(Activity 1)
完成"物品描述练习册",按模板描写教室内3种物品(桌椅、书本、讲台)
要求:每种物品至少包含2个功能描述句和1个比喻句
二、能力拓展(Activity 2)
绘制"写作知识树",将核心词汇、句型、结构要素分类排列
示例:
Root: Describe
Branch1: Appearance
Branch2: Function
Branch3: Evaluation
Leaves: color, size, material, storage space, convenience, durability
三、文化探索(Activity 3)
收集至少3个不同国家的文具描述片段(如日本的文具盒、德国的书立),进行对比分析并撰写简短报告
教学反思预设
1. 时间分配需优化:当前写作环节时间较紧,后续可增加"学生预写展示"环节,提前发现常见错误
2. 个性化指导不足:需准备不同难度的写作支架(如图片版、文字版、句型版),满足不同层次学生需求
3. 语言准确性待加强:可设计"常见错误对比表"(如"has three draw" vs "has three drawers"),建立语法意识
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