Unit7语法定语从句课件2026-2027学年人教版英语九年级上册

该初中英语课件系统梳理了定语从句的核心知识，涵盖定义、先行词、关系词（代词与副词）、分类（限制性与非限制性）及主谓一致等内容，通过表格对比关系代词/副词的用法、例句分解句子成分，构建起逻辑清晰的知识网络。 其亮点在于采用“概念解析-对比辨析-分层练习”的复习策略，如通过分析关系词在从句中的成分培养思维品质，设计从基础选择到综合语境应用的练习题提升语言能力，帮助学生精准掌握知识点，也为教师提供针对性复习教学支持。

定 语 从 句 Relative Clauses Unit 6 - Grammar 定义：在复合句中修饰名词或代词的从句叫做定语从句，又称形容词性从句。 先行词：被定语从句修饰的名词或代词叫先行词。定语从句在先行词后面，但二者并不一定紧挨着。 关系词（引导词）：连接先行词和从句的词叫引导词，也可叫关系词或连接词。连接词有 that，who，which 等。 定语从句中，关系词分为关系代词和关系副词两大类。 定语从句的作用: 定语从句在复合句中对先行词起着修饰、限定作用，相当于汉语中的“……的”结构，在句中有着定语的功能. 定语从句的分类: 一. 限制性定语从句：与先行词关系密切，删除后影响整个意思的表达，不用逗号分开。只可修饰名词或代词，不可修饰句子。 二. 非限制性定语从句：与先行词关系不密切，是一种补充说明，删除后不影响整个意思的表达，一般用逗号分开。不可用关系代词that，关系代词不可省略，既可修饰名词或代词，也可修饰句子，用逗号分开。 类型 作用 特征 限制性定语从句 只修饰先行词，不可修饰主句，删除后影响整句意思的表达。 不用逗号 非限制性定语从句 可修饰先行词，也可修饰主句，起补充说明的作用，删除后不影响整句意思的表达。 不能用关系代词that，关系代词不可省略。 用逗号 All researchers know the famous agricultural scientist who has made great contributions to solving the problem.(若把从句去掉,则不知道是哪位科学家) 所有的研究人员都知道这位著名的农业科学家,他为解决这个问题做出了巨大的贡献。 All researchers know the famous physical scientist Madame Curie, who has made a great discovery in science.(若把从句去掉,仍然知道是居里夫人) 所有的研究人员都知道著名的物理科学家居里夫人,她在科学上有一个伟大的发现。 The president attended the graduation ceremony, which made all participants delighted.(说明主句带来的结果) 总统出席了毕业典礼,大家都很高兴。 先行词 关系词 定语从句 Mary is a girl who has long hair. 关系代词 关系副词 which, that who, whom, whose, where, when,why Point 句子结构：主句（先行词）+（关系词）+ 定语从句 Point 一. 定从连接词-- 关系代词 ★ 关系代词有三大作用 1、连接 ( 连接定语从句和主句 ) 2、替代 ( 替代前面的先行词 ) 3、成分 ( 在定语从句中要充当一定的句子成分 )。 关系代词 先行词 在从句中的作用 who 人 主语、宾语 whom 人 宾语 which 物 主语、宾语 that 人或物 主语、宾语 whose 人或物 定语 ★ 关系代词的选用: 找出先行词 2. 看先行词是人还是物 3. 分析先行词在定语从句中做的成分（不会分析就拆句子） 4. 确定关系词 注意： 关系代词在定语从句中作宾语时常可省略。 The man who/that is speaking at the meeting is a worker. The man is a worker. The man is speaking at the meeting. 分解 作主语 一. 1.当先行词是人时,做主语 用who, that引导. Point 关系代词的选用--先行词是人 The woman whom/who/~ they wanted to visit is a teacher. The woman is a teacher. They wanted to visit the woman. 分解 作宾语 2. 当先行词是人时,做宾语 用whom, who, that，x 引导. I like teachers we can talk with. whom / who / that / x I know the girl. 分解 作定语 3. 先行词是人，作从句的定语，关系词用whose. I know the girl whose mother is a teacher. The girl’s mother is a teacher. 二. 1.当先行词是物时,做主语 ,用which , that引导. Point 关系代词的选用-先行词是物 Basketball is a sport which / that was invented by a Canadian doctor. These are the trees which / that were planted last year. 2. 当先行词是物时,做宾语 用 which , that, x 引导. This machine ( which / that ) he is using is made in Japan. The book belongs to me. 分解 作定语 3. 先行词是物，作从句的定语，关系词用whose. The book’s cover is red. The book whose cover is red belongs to me. 定语从句中谓语动词的单复数形式应该与先行词一致。 先行词是单数时，从句中的谓语动词用单数； 先行词是复数时，从句中的谓语动词用复数。 1.I like the sweater that (is / are) black. 2.I have two good friends who (is / are) from the USA. 3.The car which (is / are) red was damaged yesterday. 4.Jamie is a young cook who (want / wants) to improve dinners. Point 定语从句-主谓一致 定语从句中 关系代词用that不用which的情况 1. I am sure she has something that you can borrow. 2. Is there anything that you want to buy in the shop? 3. There is nothing that I can do for you. 2. 当先行词被序数词，形容词最高级修饰时，关系代词只能用that。 4.This is the first play that I have seen since I came here. 5. Xiangyang is the most beautiful city that I’ve been to. 1. 当先行词是something, anything, nothing等不定代词时,关系代词只能用that。 17 6. I still remember the school and the teachers that I visited in Beijing years ago. 7. I’ve never heard of the people and things that you talked about yesterday. 4. 当先行词被the only, the very,the last等修饰时,关系代词只能用that。 8. This is the only novel that you want to borrow． 3. 先行词同时有人和物时，关系代词只能用that 18 6. 主句的主语是疑问词who / which时 ,为避免重复，关系代词只能用that。 10.Who is the girl that is crying？ 11.Which is the bike that you lost? 5. 先行词被all, no, some, any, little, much等修饰时，关系代词只能用that. 9. I've written down all the things that the teacher doesn't allow us to do． 19 只能用that 不能用which作关系代词的情况： 1. 当先行词是all, much, little, few, something, anything, everything, nothing, none等不定代词时 2. 当先行词被the only, the last, the very 等词修饰时 3. 当先行词被序数词或最高级修饰时 4. 当先行词前面有all，no,little,few,any等词修饰时 5.当先行词既有人又有物时 6.当主句是以who或which 开头的特殊疑问句时 定语从句中 关系代词用which不用that的情况 This is the room in which he lives. 2. 先行词本身为that / those时,关系代词只能用which. What’s that which is under the desk? 1. 关系代词前有介词时，关系代词只能用which。 3. 引导非限制性定语从句时,关系代词不能用that，只能用which. 22 Point 二. 定语从句连接词-关系副词 关系副词 指代对象 在从句中的作用 when 时间 时间状语 where 地点 地点状语 why 原因 原因状语 YOURE NAME 关系副词的用法 I remember the time when I took the medicine. 主语 谓语 宾语 从句不缺成份 时间状语 when 指时间，其先行词表示时间 YOURE NAME 关系副词的用法 I remember the place where I took the medicine. 主语 谓语 宾语 从句不缺成份 地点状语 where 指地点，其先行词表示地点 YOURE NAME 关系副词的用法 I remember the reason why I took the medicine. 主语 谓语 宾语 从句不缺成份 原因状语 why 指原因，其先行词表示原因 YOURE NAME 18183334522 I remember the place where I live . I remember the place in which I live . 主 谓 不及物动词 地点状语 主 不及物动词 live in sp. 居住... 谓 宾语 从句不缺成份 从句缺宾语 where=介词+which I remember the place which I live in . 关系副词 when = prep. + which where = prep. + which why = for which 关系副词 = 介词 + which 分析从句是否缺成份（主语，宾语，表语，定语）. 从句缺少主宾表定用关系代词that / which； 不缺成分用关系副词when / where / why. Do you stillremember the days that/which we spent in Qingdao? (作宾语) Do you still remember the days when we spent the summer holidays in Qingdao? (作时间状语) This is the factory that/which possess a good reputation. (做主语) This is the factory where his father works. (做地点状语) She knew the reason that/which the truth is. (表语) She knew the reason why her desk-mate is absent today. (做原因状) Point 定语从句-- 关系代词 vs 关系副词 1. After living in Paris for 50 years， he returned to the small town he dreamt coming back to for a long time A.which B.where C. that D.when 2.After living in Paris for 50 years he returned to the small town he grew up as a child. A. which B. where C.that D.when 3. This is the novel is written by Mo Yan. A. who B. what C. that D. ／ C B C 4. Disney is an amusement park you can find all the normal attractions and Disney movies and characters. A. which B. where C. that D. when 5. I like the teacher classes are very interesting and creative. A. which B. who C. what D. whose 6. I’ll never forget the day the great scientist came to our school and gave us a speech. A. that B. which C. when D. where B D C 7.It's hard to say goodbye to the teachers have spent the past three years with us. A. which B. who C. what 8. Shanghai is experiencing another extreme heatwave, has become more frequent in recent years due to climate change. A. that B. which C. who D. when 9. Mrs. Jones is the funniest person I've ever met. She can always make people laugh. A. what B. which C. that D. when B B C 11. -Did you watch the most exciting dance was performed by robots during the Spring Festival Gala of the Year of the Snake? -Yes, it was amazing. A. which B. that C. who B Thanks ! $