The –ing form as the Adverbial动词-ing 作状语
V-ing 作状语时表示的动作是主语动作的一部分,与谓语表示的动作或状态同时或几乎同时发生的,或是先于谓语动词发生,它的逻辑主语与句子的主语一致。V-ing 作状语常表示时间、条件、原因、方式、伴随、让步、结果,多用逗号跟句子其他成分隔开。 I was feeling tired, I went to bed early. I worked hard all day. I went to bed early.
Feeling tired, I went to bed early.
Having worked hard all day, I went to bed early.