代词:代词:用于指人以外的一切生物,无生命的东西和事情用于指人以外的一切生物,无生命的东西和事情日期,距离,价值,度量,温度,环境等日期,距离,价值,度量,温度,环境等it 用作非人称代词,指代日期、时间、季节、天气、温度、距离、重量、环境、情况等,常不翻译出来uIts quite hot here in summer,isnt it?uIts early midnight now.Wed better go to bed.uIts about an hours drive from here to Nanchang.uIt was noisy last night.u Do you like it here?(2004年高考全国卷)Oh,yes.The air,the weather,the way of life.Everything is so nice.(天气)(时间)(距离)(情况)(环境等)指代性别不详的婴幼儿他她是谁?Who is it?指代说话者心目中不太清楚的那个人-Who is knocking at the door?-Its may be Tom.The bab