抗遗忘单词表科学记忆 · 高效学习

时间介词 in on at 怎么选?一个口诀搞定——at 加时刻,on 加某天,in 加大时间段

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引言

时间介词 in、on、at 是中考必考点,也是很多同学一做题就乱的点。到底是 in Monday 还是 on Monday?是 in 7 o'clock 还是 at 7 o'clock?

抖音上一条「时间介词 in on at」视频把规则总结成了一个口诀。这篇文章帮你一次记牢。

核心口诀

```text

at 加时刻,on 加某天,in 加大时间段

```

at —— 具体时刻

at 后面跟具体的时间点(几点几分):

```text

at 7 o'clock(在7点)

at 8:30(在8点半)

at noon(在中午)

at night(在晚上)

at midnight(在午夜)

```

```text

I get up at 6:30.(我6点半起床。)

See you at noon.(中午见。)

```

on —— 具体某一天

on 后面跟具体的某一天:

```text

on Monday(在周一)

on Sunday(在周日)

on September 1st(在9月1号)

on my birthday(在我生日)

on Children's Day(在儿童节)

```

```text

We have English on Monday.(我们周一有英语课。)

School starts on September 1st.(9月1号开学。)

```

in —— 大时间段

in 后面跟比较大的时间范围:

```text

in 2026(在2026年)

in June(在6月)

in summer(在夏天)

in the morning(在早上)

in the afternoon(在下午)

in the evening(在晚上)

```

```text

I was born in 2010.(我2010年出生。)

We go swimming in summer.(我们夏天去游泳。)

```

一张表总结

```text

介词 用在什么前面 例子

at 几点几分 at 7 o'clock

on 某一天(星期/日期) on Monday, on June 1st

in 年/月/季节/早中晚 in 2026, in June, in summer

```

记忆口诀

```text

at 点,on 天,in 年月季节

```

实战练习

```text

  1. I usually get up ______ 7:00.

→ at(时刻)

  1. We have math ______ Monday.

→ on(某一天)

  1. It's cold ______ winter.

→ in(季节)

  1. My birthday is ______ May 5th.

→ on(日期)

```

总结

时间介词三兄弟:

```text

at + 几点几分

on + 某一天

in + 年月季节早中晚

```

```text

今日小抄:

at 7 o'clock 7点

on Monday 周一

in June 6月

in summer 夏天

in the morning 早上

```

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