Unit 1 Great scientists Grammar 教案

Unit1 Grammar 优教教学设计（二） 设计意图 This is the last period of this unit, aiming to help students get a basic knowledge of the grammar I in this unit. The emphasis of this period is mainly placed on understanding and using the grammar. Therefore, teachers should create a relatively real context to present enough sentences for students to: draw a conclusion about the rule of the Past Participle as the attribute and the predicative. In the meantime teachers should offer more opportunities for students to practice using the Past Participle as the attribute and the predicative. Exercises designed for this purpose ought to be simple and easy to operate, which are connected with their daily life to make them easy to understand. 【教学目标】 1. Students master the basic usage of the Past Participle as the attribute and the predicative. 2. Students learn to use the Past Participle as the attribute and the predicative in the real situation through self-study and practice. 3. Students get absorbed in English study and enjoy the beauty of English. 【教学重点】 1. The usage of the Past Participle as the attribute and the predicative. 2. How to guide the students to use the Past Participle as the attribute and the predicative in the real situation. 【教学难点】 To guide students to know how to use the Past Participle in the real situation. 【教学过程】 Step 1: Lead-in （设计意图：通过一些课文段落填 空导入语法学习，让学生先体会过去分词作定语和表语的使用语境，同时带着问题进入课堂，激发学生兴趣。 学生可以先不回答观察思考部分的问题，学完本课后，再回来解释，回扣课堂。） John Snow was a doctor who became l when thinking about helping patients. At the time when he lived, many people died of cholera. There were two theories 2 how cholera killed people, however, John Snow suspected the one thinking people absorbed the disease into their bodies with meals was correct but he needed evidence. In 1854 he found that in two particular streets the cholera outbreak was so severe that over 500 people 3 to cholera died in a short time. He did the research and concluded that the water in the streets was to blame. People were 4 not to drink 5 water any more. Finally, cholera was 6 . 【观察思考】 (1) polluted water 过去分词放在名词之前，people exposed to cholera 过去分词短语放在名词之后。 (2) explaining 与 exposed，分别是现在分词与过去分词，一个表示主动，一个表示被动、完成。 (3) become inspired 过去分词作表语，be instructed/defeated 为被动结构。 Step 2: 过去分词作定语 【观察思考】 a lost animal 一只迷路的动物 a used stamp 一枚用过的邮票 an injured finger 一根受伤的手指 a broken coin 一枚破损的硬币 a lighted candle 一支点燃的蜡烛 (l) So many thousands of terrified people died every time there was an outbreak. (2) He immediately told the astonished people in Broad Street to remove the handle from the pump so that it could not be used. (3) The water companies were instructed not to expose people to polluted water any more. 【归纳总结】 单个的过去分词作定语时一般兼有被动和完成的 ... ...