1、Book1 Unit4 Natural Disasters Useful structures Restrictive Relative Clauses 定语从句Teaching aims:教学目标1 Describe pictures of disasters with restrictive relative clauses.用定语从句描述地震2 Find more sentences with restrictive relative clauses from the text.从课文中找出定语从句3 Master the structure of restrictive relativ
2、e clauses.掌握定语从句的结构 4 Use restrictive relative clauses correctly.正确使用定语从句5 Improve the ability of using the language提高运用语言的能力教学思路：本单元的语法结构是that,which,who,whom,whose 引导的限制性定语从句。其中that,which,who,whom,引导的限制性定语从句是学生在初中阶段就掌握的内容，whose引导的定语从句是属于新学的内容。根据课标的要求，学生在必修阶段只要掌握限制性定语从句，非限制性定语从句属于选修阶段的内容。课本练习采用了感知-发
3、现-总结-练习-运用的学习过程 同时引导学生理解定语从句对丰富句子的内容和描述事物特征、补充信息的功能。引导学生用定语从句丰富自己的语言表达。一 明确概念 在学习定语从句前要知道定语的位置二 记住有哪些关系词；会分类；三 能够记住吗？三 能够说出先行词的作用四 能够准确找到先行词并确定从句的位置四 理解主句和从句之间的位置关系Have a try:难点学记：如何选择关系词？1.that:先行词指人或指物；先行词指人或指物；在从句中做主语、宾语、表语。在从句中做主语、宾语、表语。A plane is a machine that can fly.He is the man that you wa
4、nt to see.2.which:先行词指物；先行词指物；在从句中做主语、宾语在从句中做主语、宾语The bag which/that is red is mine.This book which/that he gives me is interesting.Hong Kong is not the city that it used to be.The person to whom you just talked is Mr.Li.3.who:先行词指人；先行词指人；在从句中做主语在从句中做主语 、宾语。、宾语。4.whom:先行词指人；先行词指人；在从句中做宾语在从句中做宾语The b
5、oy who/that is reading is Tom.He is the man who/that you want to see.He is the man whom you want to see.5.whose:先行词指人或物；先行词指人或物；在从句中做定语。在从句中做定语。The room whose window faces south is mine.The room of which the window faces south is mine.The room the window of which faces south is mine.whose=介词介词(of)+which/whom 关系代词用that 不用which的时候：关系代词用which 不用that的时候：读一读：Read the sentences 练一练：填上适当的关系词 Translate the sentences:背一背：Thank you!
