就 动词+ing 而言,主要看它在句子里的作用,作定语或状语的是现在分词短语,作宾语的是动名词。如,The girl is fond of singing. (singing 是 fond of 的宾语,动名词)I knoe the singing girl. (singing 修饰 girl, 是定语, 现在分词)She comes into the room singing. (singing 修饰整句, 是状语,现在分词。)