课件29张PPT。 语法复习 如何判断使用分词的 正确形式及结构 教学内容分析；非谓语动词是高中英语教学的重要内容，也是高考的必考点，同时也是高中英语教学当中较难，较繁琐的一个知识点，攻克非谓语动词对于提升学生的英语能力意义重大。 教学目标；巩固复习非谓语动词中现在分词和过去分词的用法及结构。 教学重点和难点；充当定语，状语，宾语补足语时现在分词和过去分词的区别，以及现在分词的时态和语态。分词：Participles 分词的概述分词的两种形式：现在分词(-ing)和过去分词(-ed)。 现在分词的完成式结构： having done 现在分词一般式的被动结构： being done 现在分词完成式的被动结构： having been done 分词的否定结构 ：在分词之前加上not 现在分词与过去分词 的区别一1、作定语时Do you know the crying boy? We are trying our best to catch up with the developed country. Do you know the boy crying under the tree? The students are discussing a book written by LuXun.单个的分词作定语时一般前置（位于被修饰的 词之前），分词短语作定语时后置。 1、作定语时The meeting held last week is very important. 2.Tell the children playing there not to make so much noise. 3. They lived in a room facing the south. 4. I hate to see letters written in pencil.被动关系被动关系主动关系主动关系现在分词作定语表示动作正在发生或与谓语动作同时发生，与所修饰的词是主动关系 及物动词的过去分词作定语表完成或被动的动作，与所修饰的词是被动关系；不及物动词的过去分词作定语只表完成不表被动。 Tipsa retired worker 退休工人 a fallen leaf 一片落叶 练习1. Mrs.White showed her students some old maps _____ from the library. to borrow B. to be borrowed C. borrowed D. borrowing 2. There is a great deal of evidence _____ that music activities engage different parts of the brain. A. indicate B. indicating C. to indicate D. to be indicating 3. With the government’s aid, those _____ by the earthquake have moved to the new settlements. affect B. affecting C. affected D. were affected 4. Throughout history, the language _____ by a powerful group spreads across a civilization A. speaking B. spoken C. to speak D. to be spoken2、作宾语补足语时取决于分词与宾语的关系： 主动关系，用doing 被动关系，用done。 例如 1.I found them painting the windows. 2. I found the windows painted. 主动关系被动关系（现在分词表主动、进行）（过去分词表被动、完成）1.You should understand the traffic rule by now. I’ve had it _____ often enough. A. explaining??? B. to explain?? C. explain???? D. explained 2.Jenny hopes that Mr. Smith will suggest a good way to have her English _____in a short period. A. improved B. improving C. to improve D. improve 3 — You look upset. What’s the matter？ — I had my proposal _____ again. A．turned over B．turned on C．turned off D．turned down 4. After a knock at the door, the child heard his mother’s voice _____ him. A. calling B. called C. being called D. to call3、作状语时 Seen from the moon, the earth looks like a blue ball. Seeing nobody at home , he left. 被动关系主动关系分词的选取：取决于分词与句子主语的关系： 主动关系，用 doing 被动关系，用 done 二 特别提醒 ____(dress) in a white uniform, he looks more like a cook than a doctor. ... ...
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