讲义
代名词it

代名词it虽是文法上的主词或受词，有时并非真正的主词或受词，而是引介前面或后面真正或逻辑的主词。

It 可指天气、时间、距离、情况等。

It rained heavily this morning, but it cleared up by noon.

今天早上雨下得很大，不过到中午就放晴了。

It is almost summer now, so it is very hot.

现在几乎是夏天了所以天气很热。

It's getting hotter and hotter. 天气一天天的凉了。

It's ten miles from here to the station. 从这儿到车站有十英里远。

How far is it from your home to your school? 从你家到学校有多远？

It's noisy here. I can't hear you. 这里好吵，我听不见你说话。

"Who is It?" "It's me, Christina/Coby."

谁呀？ 是我，Christina/Coby。