Unit 4 Discovering useful structures课件2022-2023学年高一英语上学期人教版（2019）必修第一册

Unit 4 Natural Disasters -----Describe pictures of disasters Better late than never. Leaning Aims 1.Speak out the usages of the restrictive relative clauses in your own words to understand its usage. 2. Draw the mind map of the restrictive relative clauses with your partners to analyze and figure it out completely. 3. Make a role-play to describe pictures of disasters and share with others to deepen the perception of its function. Better late than never. Which one is Harry Porter ? Better late than never. Leading-in The boy is Harry Porter. Harry Porter is wearing glasses. The boy who is wearing glasses is Harry Porter . What is the attribute? (什么是定语） Better late than never. a red apple a beautiful girl 形容词作定语 my friend his pen 代词作定语 a girl in red a man with glasses 介词短语作定语 apple tree shoe shop 名词作定语 什么是定语？ 定语就是用来修饰或限定名词或代词的成分 the boiling water; the watch made in Shanghai. 分词作定语 Better late than never. What is the attributive clause? (什么是定语从句） Better late than never. 定语从句 Attributive Clause /Relative Clause 1，定义：定语从句，也称形容词性从句，一个句子跟在一个名词或代词后进行修饰限定，进而使原句内容更完整，就叫做定语从句。 定语从句在整个句子中做定语的成分 。 被定语从句修饰的名词或代词叫先行词。 定语从句不同于单词作定语的情况，它通常只能放在被修饰的词之后。如：a beautiful pen a pen which is beautiful a handsome boy a boy who is handsome Better late than never. （二）判断下面的句子是否定语从句。 1. The number of people who were killed was more than 100. 2. He is a man that you can safely trust. 3. It seemed as if the world were coming to an end. 4. The bus which has left was the last one. 5. I didn’t know which book was the best. 定从 定从 表语从句 定从 宾语从句 Better late than never. The boy who is wearing glasses is Harry Porter . 先行词 关系词 定语从句 关系代词 关系副词 which, who, whom, whose, that，as where, when, why Better late than never. Find and underline the restrictive relative clauses in the sentences below.  The Tangshan earthquake was a terrible experience that my great-grandma cannot forget. • The couple who live next to us volunteered to help after the volcan