超详细的It的用法归纳总结（附习题及答案）！
一、It是代词
指除人以外的一切生物和事物，用来指代时间、季节、天气距离、环境。

在这里，i是一个虚词，没有任何实际意义。

例如:
①It is a quarter to eight now.
现在是八点差一刻。

②It is midnight. 现在是午夜。

③It is time for breakfast.
现在是吃早饭的时间。

④-What is the date today?今天几月几号?
--It is December 3rd. 十二月三号。

⑤--What season is it?现在是什么季节?
--It is summer. 夏季。

⑥--What is the weather like today?
今天天气如何?
--It is fine.天气很好。

--It is foggy and wet.天气多雾又潮湿。

⑧How far is it from the bus station to your home? 从汽车站到你们家有多远?
⑨It is around five miles to the shopping center.从这儿到购物中心大约有五英里。