必修5Unit 1 Great Scientists 语法课.doc

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必修5Unit 1 Great Scientists 语法课

必修5Unit 1 Great Scientists 语法课 济宁市第一中学 林翠菊 李雯 张学敏 刘玉东 邵长云 孔庆民 第一步 作业检查 1. Check their homework and remind them of what they learnt in the last period. 2. 让学生相互交换所写的小文章,注意语言的准确性,选出本组最佳文章、好的语句,课后老师收集、整理,进行张贴,大家共享、共赏。 第二步 查找探究 1. Ask students some knowledge about the past participle. 2. Get students to find out the sentences with the past participles from the reading passage. ① Doctor John Snow was a well-known doctor in London... ② So many thousands of terrified people died every time there was an outbreak. ③ John Snow told the astonished people in Broad Street to remove... ④ But he became inspired when he thought about helping ordinary people. ⑤ Neither its cause , nor its cure was understood. ⑥ He got interested in two theories. 3. Let students work in pairs to translate these sentences, trying to understand the usage of the past participles. 第三步 理解归纳 Page 4 Discovering useful structures Exercises 1, 2 3. 1. Ask students to finish the exercises of how the past participles are used. 2. Students draw a conclusion of the usages given here in groups or four. 3. Teachers give necessary explanation and some more general usages of the past participles. 过去分词是非谓语动词的一种形式,表示完成和被动的动作。它在句子中可以充当表语、定语等成份。下面仅谈其作定语和表语的用法。 一、过去分词作定语 过去分词作定语有前置和后置两种情况。 1、前置定语 单个的过去分词作定语,通常放在被修饰的名词之前,表示被动和完成意义。 A类:被动意义: an honored guest 一位受尊敬的客人 The injured workers are now being taken good care of in the hospital. 受伤的工人现正在医院受到良好的照料。 B类:完成意义: a retired teacher 一位退休的教师 They are cleaning the fallen leaves in the yard. 他们正在打扫院子里的落叶。 2、后置定语 过去分词短语作定语时,通常放在被修饰的名词之后,它的作用相当于一个定语从句。如: This will be the best novel of its kind ever written . 这将是这类小说中写得最好的。 Who were the guests invited to your party last night? 昨晚被邀请参加你的晚会的那些客人是谁呀? 二、作表语 过去分词作表语并无“完成”或“被动”之意,而是表示主语的状态或思想感情等。例如: He looked worried after reading the letter. 看完信后,他显得很忧虑。 When we heard of the story, we were deeply moved. 当我们听到这个故事时,被深深地感动了。 He seemed quite delighted at the idea. 听到这个想法,他似乎很高兴。 常见的作表语的过去分词有: am

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