英语知识点:表示“在......以后”

*after表示“在......以后”,是以过去的时间为起点,在一段时间以后,常用于过去时态。如:

They left the village after a week.

He was back after three days.

*in表示“在......以后”,是以现在的时间为起点,在一段时间以后,通常用于将来时态。如:

Our teachers will go to Mount Huang for a trip in a week.

I am going to work in Beijing in a month.

注意:

①表示在具体某一时刻即几点钟以后,用after,而不用in。如:

We’ll have a meeting after two o’clock.

②表示在某个未来的具体日期之后用after,而不用in。如:

He’ll arrive after Tuesday.