高中英语-现在分词作状语的几种形式 课件(共23张PPT)

分词作状语 教学内容 1.分词作状语 2.独立主格结构 教学重难点 1.分词做状语时分词逻辑主语的确定 2.分词做状语时分词形式的选择 3.独立主格结构的使用条件及其形式的选择 教学过程 复习现在分词的各种时态和语态 现在分词作状语 现在分词做状语与过去分词作状语的区别 独立主格结构 现在分词作状语 现在分词作状语相当于状语从 句可表时间，原因，方式，伴随情况，结果或条件等 * (1)相当于原因状语从句 a. Being ill, she didn’t go to school today. =As she is ill, … b. Having seen the film ,he didn’t go to the cinema with them. =Because he had seen the film ,… * Turning around (=When she turned around), she saw an ambulance driving up. （2）相当于时间状语从句 * (3)表示行为方式，伴随情况或补充说明等 The students went away, running and laughing. * (4)表示结果 a. The old man died, leaving nothing but debts. * (5)表示条件 If playing all day ,you will waste your valuable time. * 比较现在分词和过去分词作状语的区别 Following the old man, we went upstairs. (we followed ) (跟着那个老人, 我们上去了) 2. Followed by the old man, we went upstairs. (we were followed) (被那个老人跟着, 我们上去了) 过去分词与现在分词作状语的区别 pp和v-ing各有两大特点： 1. pp 表示被动的动作； v-ing表示主动的动作 2. pp 表示已经完成的动作; v-ing 表示正在进行的动