U4 Discovering useful stuctures同步课件-2022-2023高中英语同步备课堂（人教版2019）（必修第一册）

Unit 4 Natural Disasters Period 3 Discovering Useful Structures 定语从句2 The Attributive Clause 1 定语从句之关系代词 学习目标： 1.定语从句的特殊用法。 2.定语从句中关系代词的作用。 学习重难点： 1.定语从句结构的分析。 2.定语从句关系代词的选择。 The man who ran fastest 先行词 (antecedent) 关系词 (relatives) 定语从句 (Attributive Clause) 一、先行词：定语从句修饰的名词或者代词 二、定语从句：修饰名词或代词的句子 三、关系词（that who whom which whose where when why） 指代先行词 在定语从句中担任成分 引导定语从句 关系词的作用 关系词的选择 看在从句中所做成分 看指代人或物 The man who gave me an apple is a teacher. I love the story that Amy wrote yesterday 找出先行词、关系词、定语从句 1. She is a girl who/that is always helping others. She is a girl who/that is always helping others. 先行词指人，在从句中做主语，关系代词用who/that 2.The man who/whom/that you saw just now is our manager. The man who/whom/that you saw just now is our manager. 先行词指人，在从句中做宾语，关系代词用who/whom/that/省略 3. Don't cut down the tree which/ that gives you shade(阴凉). Don't cut down the tree which/ that gives you shade(阴凉). 先行词指物，在从句中做主语，关系代词用which/that 4.This is the book which/that I bought yesterday. This is the book which/that I bought yesterday. 先行词指物，在从句中做宾语，关系代词用which/that/省略 先行词 主语 用who/that 宾语 用who/whom/that/省略 主语 用which/that 人 物 宾语 用which/that/省略 注意: 1.先行词一定是名词或者是代词. 2. 关系词处在先行词和定语从句之间 3.从句一般情况下都紧在先行词之后. 2 关系词之重难点辨析 I want to be a detective. 7 宜用 that 不宜用 which 引导定语从句的情况 ① 当先行词被序数词或形容词最高级修饰时。 This is the most exciting film that I have ever seen. 这是我看过的最令人兴奋的电影。 ② 当先行词是 all，little，few，much，any ，everything，anything，nothing，none 等不定代词或被不定代词修饰时。 All that we needed is time 我们所需要的只有时间 ③ 当先行词被 the only，the very，the last，the same 等修饰时。 This is the only book that I want to read. 这是我唯一想读的一本书。 ④ 当先行词既包括人又包括物时。 They talked of things and persons that they remembered. 他们谈论着他们记得的人和事。 ⑤ 当主句是以 which 开头的特殊疑问句时。 Which are the books that you bought for me?哪些是你买给我的书？ 用which不用that的情况 ①关系代词前有介词时。 The house in which I used to live has become a shoe shop. 我过去住的房子现在已经变成了一家鞋店。 ②在非限制性定语从句中。 Have you ever read the book，which was written by a young girl? 你读过这本由一个年轻女孩写的书了吗？ ③先行词本身就