It用法学案
一、代词
人称代词it可以用来代替一个名词、短语、句子，以免重复。
(1)代刚提到过的同一事物 This is my new car. I bought it yesterday.
(2) 指动物或不考虑性别的婴儿
Where is the cat? It’s under the bed.
The baby cried when it was hungry.
(3) 在情景中确认某人或事物
Who is it? It’s me. (敲门) Who’s it over there? It’s the milkman.
(4) 指代前句或后句所述的情况
He smokes in bed and I don’t like it.
It would be great if you could join us.
