Unit 3 Fascinating Parks 动词-ing形式作主语 课件 2023-2024学年高中英语人教版选择性必修第一册

Unit 3 Fascinating Parks 动词-ing形式作主语 People living there are quite friendly. The performance was really amazing. Laughing and talking, they went in. I love to watch her performing on the stage. Playing with fire is dangerous. Jim likes jumping in muddy puddles. 定语 表语 状语 宾补 主语 宾语 找出V-ing, 并说出其在句中充当的成分。 一、动词-ing形式 动词-ing形式, 由“动词原形 + ing”构成, 是动词非谓语的一种形式, 包括现在分词和动名词两种, 在句中可以作主语、宾语、表语、定语、状语和宾语补足语。 动词-ing通常有以下几种变化形式: (以do为例) 语态时态 主动语态 被动语态 一般式 doing being done 完成式 having done having been done 二、动词-ing形式的时态和语态 1. 动词-ing的一般式: 多用于表示一般情况, 或所表示的动作或状态通常与谓语动词所表示的动作或状态同时发生或基本同时发生。 一般情况 同时 稍后 Jack was praised for having done a good deed. I enjoy listening to classical music. We had a good time in dancing with them. We are considering buying a new car. 2. 动词-ing的完成式: 所表示的动作发生在谓语动词所表示的动作之前。 Sorry, I didn’t mean to lose my temper. I just can’t stand being misunderstood. 3. 动词-ing的主动式: 表示的是它的逻辑主语是动作的执行者。 4. 动词-ing的被动式: 表示的是它的逻辑主语是动作的承受者。 He insisted on sending her to hospital. I’m sorry for not finishing my task on time. 5. 动词-ing的否定式: 在其前加not。 三、动词-ing形式作主语的用法 1. 动词-ing形式作主语时, 往往表示经常性、习惯性的动作或状态, 通常置于句首, 谓语动词用单数形式。 Playing basketball is good for our health. Helping others means helping ourselves. 指一般经常性的道理 Playing basketball is good for our health. Going to bed early and getting up early is good for our health. Listening to the English tapes and watching English films are good ways to learn English. 单个的动词-ing作主语, 谓语动词用单数。 两个或两个以上的动词-ing短语作主语, 如果表示一件事, 谓语动词用单数; 如果表示两件或多件事情, 谓语动词用复数。 (1) 直接位于句首 (2) it作形式主语, 而将动词-ing形式后置 动词-ing作主语时的位置 通常有两种位置： 动词-ing形式作主语, 且主语较长时, 为了平衡句子结构, 避免头重脚轻, 通常用 it 作形式主语放在句首, 而把真正的主语(动词-ing短语)后置。 2. 形式主语it代替动词-ing形式作主语 It is no use waiting for other people to make decisions for you. 三、动词-ing形式作主语的用法 It is a waste of time doing… 做…是浪费时间的。 It is no good/use/fun doing… 做…是无益/没用/没意思的。 It is worthwhile doing… 做…是值得的。 There is no