Unit 4 Natural Disasters Discovering Useful Structures 定语从句关系代词 课件-2023-2024学年高中英语人教版（2019）必修第一册

定语从句 ————关系代词 你是否犯过以下的错误？ 1. He is a student, he always means what he says. (X) 一个句子只有一个主语一个谓语 2. That’s the book, I like it. (X) 3. He works hard, it is a fact that we all know. (X) 那么我们该怎么办呢？ 1. He is a student, he always means what he says. (X) He is a student; he always means what he says. (√) He is a student, and he always means what he says. (√) 2. That’s the book, I like it. (X) That’s the book; I like it. (√) That’s the book, and I like it. (√) 3. He works hard, it is a fact that we all know. (X) 我们还可以怎么办？ 1. He is a student, he always means what he says. (X) He is a student; he always means what he says. (√) He is a student, and he always means what he says. (√) 少点味道 He is a student, who always means what he say. 定语从句 定语从句，一个简单句跟在一名词或代词后（先行词）进行修饰限定，所以叫做定语从句。在主句中充当定语成分。 关系代词 关系代词所有格 关系副词 定语从句之关系代词初步感知 关系代词有连接词的功能，可以用来引导定语从句。 He is a man who always means what he says. 关系代词who引导的定语从句 That's the book which I like. 关系代词which引导的定语从句 He works hard, which is a fact that we all know. 关系代词which引导的定语从句 He is a boy whom everyone loves. 关系代词which引导的定语从句 关系代词的种类及其功能 代替人时，主格用who(在所引导的定语从句中作主语)，宾格用whom(在所引导的定语从句中作宾语); 代替事物时，主格或宾格均用which; 代替整个句子时，主格或宾格均用which. 关系代词 主格 宾格 代替人 who whom 代替事物 which which 代替整个句子 which which 关系代词使用三原则 关系代词之前要有先行词（即表人或事物的名词）； 关系代词在所引导的定语从句中要作主语、宾语或表语； 否则关系代词之前一定要有介词。 一一验证 (1) He is a man who always means what he says. He is a man. He always means what he says. (√) He is a man, he always means what he says. (X) He is a man he always means what he says.(X) He is a man ( ) always means what he says. He is a man who always means what he says.(√) 在本例中，who这前有先行词 a man，who在所引 导的定语从句中作主语，其后有动词 means, 故属正确的用法。 一一验证 (2) He is a boy whom everyone loves. He is a boy. Everyone loves him. (√) He is a boy, everyone loves him. (X) He is a boy, everyone loves him.(X) He is a boy, everyone loves ( ). He is a boy, everyone loves