点击免费领取中考核心考点资料！

初中英语介词知识点：时间介词

　　表示时间的介词：

　　(1)in , on，at 在……时

　　in表较长时间，世纪朝代时代、年、季节、月及一般(非特指)的早、中、晚

　　如：in the 20th century, in the 1950s, in 1989, in summer, in January,

　　in the morning, in the night, in one's life , in one's thirties

　　on表示具体某一天及某一天的早、中、晚。

　　如：on May 1st, on Monday, on New Year's Day, on a cold night .

　　in January, on a fine morning, on Sunday afternoon.

　　at表示某一时刻或较短暂的时间，或泛指圣诞节，复活节等。

　　如: at 3:20, at this time of year, at the beginning of, at the end of …,

　　at the age of …, at Christmas， at night, at noon, at this moment

　　在last, next, this, that, some, every 等词之前一律不用介词

　　如：We meet every day.

　　(2)in, after 在……之后

　　"in +段时间"表示将来的一段时间以后;