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课件网) Discovering Useful Structures Unit 4 Natural Disasters 人教版2019必修第一册 Describe a natural disaster Learning objectives 1. accurately understand the definition, form and basic grammatical functions of restrictive relative clauses, and clearly recognize their role in modifying and restricting nouns or pronouns in sentences. 2. proficiently grasp the usage of relative pronouns (which, that, who, whom, whose, as) in restrictive relative clauses, including the components they can act as in the clause and applicable scenarios. 3. correctly select and use appropriate relative words to construct restrictive relative clauses according to sentence structures and contexts. 4. use restrictive relative clauses to describe people, things or events related to natural disasters, making the expression more specific and vivid. Contents 1. Lead in 2. Presentation 3. Practice 4.Summary 5. Assessment 6. Homework 01. Lead in Look and Describe This is a picture of Tangshan earthquake, how can you describe it ●Tangshan earthquake is a terrible natural disaster. ●Tangshan earthquake is a terrible natural disaster that destroyed nearly everything in the city. Analyse and Compare Tangshan earthquake is a terrible natural disaster. Tangshan earthquake is a terrible natural disaster that destroyed nearly everything in the city. adj. as attribute a sentence used as attribute attributive clause as attribute Tangshan earthquake is a terrible natural disaster. Tangshan earthquake is a terrible natural disaster that destroyed nearly everything in the city. Which do you prefer more specific, detailed, vivid and richer. Let’s learn to describe a natural disaster with attributive clauses! 02. Presentation Definition What is the attribute 定语: 修饰名词或代词的成分，用来说明名词或代词的品质与特征。 （可充当定语的主要有形容词，名词，介词短语，非谓语，句子；常译为“……的”） 前置定语：在所修饰词之前的定语 后置定语：在所修饰词之后的定语 a severe flood the houses in the water What is the attributive clause 定语从句：在主从复合句中，修饰、限定某一名词或代词的从句叫做定语从句，一般位于被修饰词之后。 The man who was trapped under the earthquake ruins is alive. 主 系 表 定语从句 修饰、限定 先行词 关系词 先行词：定语从句中被修饰、限定的名词或代词，有时是短语或整个主句。 关系词：引导定语从句的词，分为关系代词（which, that, who, whom, as）和关系副词（when, where, why ）。 restrictive relative clause限定性定语从句 What is the restrictive relative clause The man who was trapped under the earthquake ruins is alive. Which man is alive The meaning of the sentence is not clear. 起到非常严格的 的作用，与先行词之间的关系非常 ，是整个句子不可或缺的重要部分，如果去掉，句意将 ，甚至产生歧义。 修饰、限定 不清楚、不完整 密切 Observe, Analyse and Find 1. Form of the restrictive relative clause. The number of the people who were killed or badly injured in the earthquake was more than 400,000. 先行词 关系词 定语从句 定语从句 先行词 关系 ... ...
