动词的-ing形式作状语 一、 动词的-ing形式作状语时，通常都表示主语正在进行的另一动作，用来对谓语动词表示的动作加以修饰或作为陪衬。它可表示时间、原因、结果、条件、让步、方式或伴随动作，相当于相对应的状语从句。 二、 注：从句的主语和主句的主语必须一致。即-ing分词作状语时，它的逻辑主语就是整个句子的主语，并表示主动的关系。 三、 1. 表示时间,代替时间状语从句 Walking in the street, I met a friend of mine. =When I walked in the street, I met a friend of mine. 2. 表示原因，相当于一个原因状语从句，多置于句首或句末，也可置于句中 She rang him up, hoping to get his support. = As she hoped to get his support, she rang him up. Being ill, he didn’t go to school =As he was ill, he didn’t go to school 3. 表示条件，多置于句首 Working hard, you will succeed. =If you word hard, you will succeed. 4. 表示让步，多置于句首 Being poor, the old man was happy. =Though he was poor, the old man was happy. 5. 表示结果，常置于句末 表示方式或伴随,多置于句末，也可置于句首 1) He sat at the table, reading a magazine. The boy fell off his bike, breaking his right arm. = The boy fell off his bike, so he broke his right arm. 6. 2) Laughing and talking, they went into the room. 四、为强调与谓语动词的动作同时发生,在-ing形式短语前可用连词when, while等;为强调在谓语动词的动作之前或之后发生,在-ing形式短语前可用连词before或after e.g. 1) Be careful when crossing the road. 2) Don’t laugh while eating. 3) Before going abroad, he lived here. 4) After watching TV, he went to bed. 五、在-ing形式短语前可用介词on,表示“一……就……” e.g. On arriving in Beijing, he went to see his uncle.(= As soon as he arrived in Beijing, he went to see his uncle.) 本文来源：https://www.wddqw.com/doc/97d3f4215b1b6bd97f192279168884868762b833.html