介詞in/on/at
一直以來對in/on/at用法很模糊，最近複習英語，做個筆記備忘。
英文中介詞後需跟名詞或代詞作賓語
每個介詞有自己的意思，但是對一些固定搭配需要單獨記憶
on 在…上
on + 在具體的某天
in 在…裏
in + 年/月/四季
大地點(國家/城市等)
the morning
the afternoon
the evening
at 在…
at + 時間點
小地點(車站/機場等)
noon
night
eg:
1.Where is my book?
It’s on the desk.
2.Where is Linda?
She is in her room.
3.The cat is at the door.
4.We were at the airport on Monday.
5.We were there at four o’clock.
6.They were in Australia in September.
7.They were there in spring.
8.On November 25th, they were in Canada.
9.They were there in 1990.
10.I usually get up at seven in the morning.
11.In the afternoon, I often go swimming.
12.Sometimes I watch TV in the evening.
13.I often read a book at night.