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初二英语 语法-被动语态.doc

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课 题 语法-被动语态 授课时间:2010-2-27 备课时间: 2010-2-24 教学目标 通过讲练结合,让学生掌握被动语态的基本用法 重点、难点 如何让学生理解并掌握被动语态的用法 考点及考试要求 被动语态是中学语法中较难掌握的知识点。 教学内容 Step 1:复习there be 句型及名次变复数规则 Step 2 听写单词 Step 3 :学习被动语态 一、语态概述:英语的语态是通过动词形式的变化表现出来的。 英语中有两种语态:主动语态和被动语态。 1. 主动语态表示主语是动作的执行者。 eg: Many people speak Chinese. 谓语:speak的动作是由主语many people来执行的。 2. 被动语态表示主语是动作的承受者,即行为动作的对象。 eg: Chinese is spoken by many people. 主语English是动词speak的承受者。 二、被动语态的构成:助动词be+及物动词的过去分词 我们学过的时态有哪几种?它们的形式? write: do: be: 人称、数和时态的变化是通过be的变化表现出来的。现以speak为例说明被动语态在各种时态中的构成。 时态 肯定句 否定句 一般疑问句 特殊疑问句(when) 一般现在时 一般过去时 一般将来时 现在进行时 现在完成时 三、被动语态的用法 1. 翻译下面的句子。 1)一些新电脑在昨晚被盗了。 2)这座桥竣工于1981年。 总结: 2. 强调动作的承受者,而不强调动作的执行者。 The glass was broken by Mike.玻璃杯是迈克打破的。 This book was written by him.这本书是他写的。 Your homework must be finished on time.你们的家庭作业必须及时完成。 以上句子强调的分别是: 四、主动语态变被动语态的方法 请将下列句子改为被动语态: 1. All the people are laughing at him. 2. Do they make the bikes in the factory? 3. He has cut down a tree in the forest. 主动语态变为别动语态的方法是: (1) (2) (3) 五、含有情态动词的被动语态 按要求改写下面的句子: 1. We can repair this watch in two days. 否定句: 一般疑问句: 划线部分提问: 2. They should solve the problem at once. 被动语态的否定句形式: 被动语态的一般疑问句形式: 被动语态综合训练: 一、选择题。 1. _____ a new library _____ in our school last year? A. Is; built B. Was; built C. Does; built D. Did; built 2. So far, the moon _______ by man already. A. is visited B. will be visited C. has been visited D. was visited 3. How many trees ______ this year? A. are planted B. will plant C. have been planted D. planted 4. Look! A nice picture ________ for our teacher. A. is drawing B. is being drawn C. has been drawn D. draws 二、把下列句子改成被动语态。 1. They sold that kind of shoes in this shop last week. 2. He doesn’t show the stamps to me. 3. You should take good care of her baby. 4. May I look after the baby at home? 三、将下列句子改为被动语态,每空一词。 1. The children will sing an English song.
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