精选优质文档-倾情为你奉上概念引入The music they are playing sounds so exciting .We watched three boys sharing their food with eachOur job is playing all kinds of music .The girl singing now is a classmate of mine用法讲解非谓语动词中的ing形式包括两种：一种是动名词，另外一种是现在分词。 基本形式：1、-ing形式作表语1) -ing形式作表语时放在系动词之后,用来泛指某种动作或行为,以说明主语的具体内容(身份、性质或情况)。如：Her hobby is painting.她的业余爱好是画画。My job is looking after the children.我的工作就是照顾这些孩子。2) ing用来表示主语所具有的特征，如：His concern for his mot
