Unit4语法专项课件- who引导限制性定语从句2026-2027学年外研版英语九年级上册

该初中英语课件聚焦外研版九年级上册Unit4语法专项，核心讲解who引导的限制性定语从句，通过单元英雄、战士等主题导入，对比状语从句明确语法功能，以先行词、关系代词等基础概念为支架，逐步过渡到主谓一致、句子合并等技能。 其亮点在于情境化与结构化结合，以英雄主题渗透文化意识，通过合并句子四步法、课堂口诀等策略提升学习能力，分层练习（单句填空、句子改错等）强化语言能力，精准突破主谓不一致等易错点培养思维品质，助力学生掌握语法，教师教学更高效。

教学课件 外研英语九年级上册 Unit4 语法专项 —— who引导限制性定语从句 全解精讲+分层练习 1 1.掌握定语从句、先行词、关系代词基础概念 2.吃透 who 的用法：仅指人，在从句中作主语 3.分清先行单复数，判断从句谓语动词变形 4.学会两个简单句合并为 who 定语从句 学习目标 单元语法导入 关系代词：who，专门用来修饰人 作用：放在名词后，翻译为 “…… 的”，细化人物 单元话题：英雄、战士、医护、奉献者 对比：状语从句表时间 / 原因 / 条件，定语修饰名词 核心名词释义 先行词：被后面短句修饰的名词 / 代词，一般是人 定语从句：跟在先行词后，用来描述人物特征 关系代词 who：连接主句与从句，代指先行词 例句拆分：the soldier who fought（战士，参战的） 语序固定：先行词 + who + 从句内容 句子拆分示范 完整句：She was a brave soldier who never gave in. 主句：She was a brave soldier（她是勇敢的战士） 先行词：a brave soldier（人） 定语从句：who never gave in，who 代指 soldier 翻译：她是一位永不屈服的勇敢战士 who 用法一 指代人作从句主语 who 只能修饰人，不可修饰物品、动物 从句必须搭配完整谓语动词 例句：The hero who saved villagers is a doctor. who 在从句中充当动作发出者，不能省略 句式：指人名词 + who + 动词 先行词单数 谓语变三单 先行词为单数人，who 后的动词加 s/es 例句：The nurse who helps patients works hard. 先行词 the nurse 单数，help→helps 不定代词 anyone/everyone 作先行词也用三单 先行词复数 谓语用原形 先行词是复数人物，who 后动词不变三单 例句：The soldiers who protect us are great. 先行词 soldiers 复数，动词直接用原形 protect 做题技巧：先看先行词单复数，再变形动词 合并句子解题四步法 步骤 1：找出两句重复出现的人物名词（先行词） 步骤 2：第二句主语替换为 who，删掉 he/she/they 步骤 3：把带 who 的短句紧跟先行词后方 步骤 4：根据先行词单复数调整从句动词 全程不加逗号，本单元只学限制性从句 合并句子例题演示 原句 1：That is a nurse. 原句 2：She helped wounded soldiers. 重复名词 a nurse，she 替换为 who 合并句：That is a nurse who helped wounded soldiers. 时态保持统一，不用额外改动 易错点 1 who 与 which 混用 which 只能修饰事物，不能用来指代人 错误：The man which helped me is a hero. 改正：The man who helped me is a hero. 看见先行词是人，直接排除 which 易错点 2 who 作主语不可省略 who 在从句中承担主语，删掉句子残缺 错误：The doctor saved us is brave. 改正：The doctor who saved us is brave. 区分：只有关系词作宾语时才能省略 易错点 3 谓语单复数匹配错误 错误：People who helps others are admired. 先行词 people 复数，help 不用三单，改为 help 错误：The volunteer who help kids is kind. 先行词单数，help 改为 helps 口诀：看先行词，不看 who 易错点 4 先行词与 who 之间加逗号 限制性定语从句，前后无逗号隔开 错误：The soldier, who fought hard, is old. 本单元句型全部去掉逗号 逗号用于非限制性从句，后期再学习 例句 1；I admire people who stick to their dreams. 先行词 people 复数，who 后动词原形 stick 翻译：我敬佩那些坚守理想的人 例句 2：The old soldier who fought in the war told stories. 先行词单数，主句从句统一过去时态 翻译：那位上过战场的老兵讲述往事 过去场景，动词全部变换过去式 解题技巧 选词填空判断 空格前名词是人，直接填 who 空格前物品 / 动物，不用 who（本单元不考） who 在从句开头，后面直接接谓语动词 不定代词 anyone/everyone 后同样用 who 题型一 单句填空 The volunteer ________ cares for elders is my cousin. We praise heroes ________ devote themselves to people. Do you know the speaker ________ talked about heroes? Anyone ________ never gives up can be a hero. who who who who 5. The girl ________ writes hero stories is my classmate. 6. I respect soldiers ________ guard our homeland. 7. Is that the doctor ________ saved hurt villagers? 8. People ________ face hardship bravely deserve respect. who who who who 题型二 连线匹配 My grandpa is an old fighter a. who write stories about heroes I have deskmates b. who saved people in disasters The medical worker c. who fought many years ago c a b 4. Our head teacher d. who risked their lives to help others 5. Most citizens e. who encourages us to learn heroes 6. Those young nurses f. who treasure peace and respect soldiers e f d 题型三 合并句子改写 He is a hero. He overcame lots of difficulties. I know a young nurse. She helped wounded soldiers. They are firemen. They saved people from fire. He is a hero who overcame lots of difficulties. I know a young nurse who helped wounded soldiers. They are firemen who saved people from fire. 4.This is an old veteran. He told war stories to us. 5. We love people. They always offer help to strangers. 6. She is a writer. She creates ordinary hero characters. This is an old veteran who told war stories to us. We love people who always offer help to strangers. She is a writer who creates ordinary hero characters. 题型四 句子改错 The woman which helped us is a volunteer. The hero who give up leisure time is great. The nurse who help sick kids works day and night. which → who give → gives help → helps 4. Everyone who work hard can realize their dreams. 5. The fireman who save people passed away last year. 6.That is the doctor which treated injured fighters. work → works save → saved which → who 短文填空 可选短语：who fought in the snow, who lost families, who gave up rest, who protected towns Today we visited the hero exhibition.The veteran 1.______________ shared his hard experience.Many soldiers 2.______________ kept guarding villages. Nurses 3.______________ took care of the wounded day and night. We remember all heroes 4.______________ for our safe life. who fought in the snow who protected towns who gave up rest who lost families 易混知识点区分 who：修饰人，从句主语，不可省略 which：修饰事物，本单元暂不重点讲解 先行词单数→动词三单；复数→动词原形 限制性从句无逗号，不拆分句子 合并句子删除重复人称代词 he/she/they 单元核心知识点复盘 定语从句修饰先行词，who 仅指代人作主语 从句谓语由先行词单复数决定，与 who 无关 who 在从句作主语，绝对不能省略 合并句子替换重复人称代词，紧跟先行词 四大致错点：混用 which、主谓不一致、漏 who、乱加逗号 课堂解题口诀总结 先行是人就用 who，从句主语不能丢； 单数动词加 s/es，复数动词直接留； 人别乱用 which，中间逗号不能有； 两句合并删代词，英雄句式记熟手。 教学课件 Unit4 语法专项 —— who引导限制性定语从句 Thank you for listening! 29 $