二.非人称代词it 表示时间、日期、地点、天气、温度、距离、环境等。 1.指天气:It is a lovely day, isn’t it? It is a bit windy. 2.指时间: It was nearly midnight when she came back.3.指环境: It was very quiet in the café.
4.指距离:It is half an hour’s walk to the city centre.