精选优质文档-倾情为你奉上2012届高考一轮复习语法专项十三：代 词It 的用法作人称代词John likes playing Pingpong/ He always does it in the afternoon(指代上下文提到的事物)；/Its time we went home. / How far is it from here to your home ? / It is getting warmer and warmer/ Its very quiet at the moment(可指时间、天气、环境等)引导词作形式主语，代替由不定式、动名词或从句表示的真正主语。Its important for us to learn a second language/ Its no use talking to him/ Its known to all that the earth goes round the sunB作形式宾语，代替由不定式、动名词或从句表示的真正宾语。We
