it在中学英语里的用法一、作人称代词，可用来代替人、物或事。 Who is knocking at the door? Its me 谁在敲门？是我。 The ant is not gathering this food for itself alone. It has two stomachs in its body. 蚂蚁不只 是为自己采食。它的身体里有两个胃。 When service is interrupted, as it was by last nights storm, John has to inform the public what the company is doing about the problem. 每当供电中断时，就像昨夜因暴风雨而造成的那样，约翰就必须通知大家，公司为解决这个问题正在做些什么。二、作非人称代词，表示时间、天气、季节、距离、环境等。 It is tea time. Mrs. Tuner goes into the kitchen. 到了喝
