on in at这介词关于时间和地点上的用法？请说详细，最好举例子！！

Question

如题所述

Answer 1

1、时间介词 in, on, at
at < 天 (eg. noon, dawn, night, one’ clock)
on = 天 (Monday, 30th June, New Year’s Day, Mother’s Day）
in > 天 (2008, summer, April,还有早午晚)
注意：
1) 早午晚前后如有修饰语则用 “on”
On Monday morning
On a sunny afternoon
On the morning of May 23rd
On a dark night
2) on, in, at不用于下列时间之前：this, that, last, next, every, each, today, yesterday, tomorrow, tonight
3) in+一段时间可以表“…之后”
Eg: Hurry! The school bus will leave in five minutes
I will see my grandparents in a few days.

2、方位介词：
1）at和in
in 大地点 ≥town
at 小地点 < town
eg.: in town at bus station
in Beijing at school
in USA
2）on表示在物体表面上 eg: on the table , on the wall
注意：1) on the tree 长在树上 There is an apple on the tree.
in the tree 呆在树上 There is a bird in the tree.
2）on the wall 挂在墙上 There is a picture on the wall.
in the wall 嵌在强中 There is a window in the wall.

Answer 2

on
介词 prep.
1.(表示位置)在…上, 在…旁, 在…身边
That book on the desk is an atlas.
桌上的那本书是地图册。
2.(表示时间)在…之时
It occurred on the morning of the fifteenth.
事情发生在15号的上午。
On arriving home, I was met by my daughter.
到家时我的女儿出来迎接我。
in
介词 prep.
1.(表示位置)在…里面; 在, 于; 在…部位上
I could feel the tension in the room.
我可以感觉到房间里的紧张气氛。
They live in France.
他们住在法国。
2.(表示时间)在…时期, 在…之后, 在过程中
In her twenties and thirties she had had no difficulty getting jobs.
她在二三十岁时找工作一点也不困难。
I cannot see you now, come back in half an hour.
我现在不能见你, 半小时后回来
at
介词 prep.
1.(表示位置) 在, 于; 到达, 达到; 经, 由; 在…旁, 靠近; 在…里; 在…上; 在…方位
He was not at his office.
他不在办公室。
He was standing at the door.
他正站在门边。
2.(表示时间)在, 在…时刻[时辰, 期间, 阶段, 时节]; 在…岁时
The meeting will open at 15 ∶ 00.
会议在下午三点钟开始。本回答被网友采纳