"in" vs "on" vs "at" - 时间介词用法,一张图记一辈子!

小小兔 106 2026-02-01

引言:为什么老外总是说"in the morning, on Monday, at 8 oclock"?你是不是经常在说英语时纠结:"in the morning" 还是 "on the morning"?

"on Monday" 还是 "in Monday"?"at 8 oclock" 还是 "in 8 oclock"?告诉你一个秘密: 这三个介词有严格的层级关系!用错了会让老外觉得你的英语很"奇怪"!为什么?

因为英语中的时间介词遵循**"从大到小"的层级原则**!今天我就用一张图,让你秒懂这三个时间介词,再也不会搞混了!

核心概念:时间介词的层级关系时间介词的层级从大到小:in > on > atin→ 年、月、季节、上午/下午/晚上on→ 具体日期、星期at→ 具体时间点形象比喻:in = 大范围,像在大房子里on

= 中等范围,像在桌子上at = 小范围,像在点上一张图秒懂时间介词时间轴: ●─────────●─────────● inonat (年/月) (日期) (时间点)

层级关系:in = 大范围时间(年、月、季节、上午/下午/晚上)on = 中等范围时间(具体日期、星期)at = 小范围时间(具体时间点)详细对比分析1. "in" - 大范围时间年份"I was born in 1990."

(我1990年出生) "She graduated in 2020." (她2020年毕业) 月份"I will go to Beijing in January." (我一月去北京) "The meeting is in March."

(会议在三月份) 季节"I like swimming in summer." (我喜欢夏天游泳) "The leaves fall in autumn." (叶子在秋天掉落) 上午/下午/晚上"I work in the morning."

(我上午工作) "She studies in the afternoon." (她下午学习) "He watches TV in the evening." (他晚上看电视) 2. "on" - 中等范围时间

具体日期"I was born on January 1st." (我1月1日出生) "The meeting is on March 15th." (会议在3月15日) 星期"I go to school on Monday."

(我周一上学) "She works on weekends." (她周末工作) 特殊日期"I was born on Christmas Day." (我圣诞节出生) "We celebrate on New Years Day."

(我们在新年庆祝) 3. "at" - 小范围时间具体时间点"I wake up at 7 oclock." (我7点起床) "The meeting starts at 2:30 PM." (会议下午2:30开始)

特殊时间点"I go to bed at midnight." (我午夜睡觉) "She arrives at noon." (她中午到达) 最容易出错的5种情况错误1:混淆"in"和"on"❌ 错误用法:

"I was born on 1990." (年份用in) "The meeting is in Monday." (星期用on) ✅ 正确用法: "I was born in 1990." (年份用

in) "The meeting is on Monday." (星期用on) 错误2:混淆"on"和"at"❌ 错误用法: "I wake up on 7 oclock." (时间点用at) "The party is at Monday."

(星期用on) ✅ 正确用法: "I wake up at 7 oclock." (时间点用at) "The party is on Monday." (星期用on) 错误3:混淆"in"和"at"

❌ 错误用法: "I work at the morning." (上午/下午/晚上用in) "She arrives in noon." (noon用at) ✅ 正确用法: "I work in the morning."

(上午/下午/晚上用in) "She arrives at noon." (noon用at) 错误4:特殊时间表达错误❌ 错误用法: "I was born in Christmas Day." (特殊日期用

on) "We meet in the weekend." (weekend用on) ✅ 正确用法: "I was born on Christmas Day." (特殊日期用on) "We meet on the weekend."

(weekend用on) 错误5:复合时间表达错误❌ 错误用法: "I was born in January 1st." (具体日期用on) "The meeting is on 2020." (年份用

in) ✅ 正确用法: "I was born on January 1st." (具体日期用on) "The meeting is in 2020." (年份用in) in/on/at 一览表(速查)

in(大范围):年、月、季节、上午/下午/晚上例:in 2020; in January; in summer; in the morningon(中范围):具体日期、星期、特殊“某一天”例:on January 1st; on Monday; on Christmas Day

at(小范围):具体时间点、noon/midnight、少量固定搭配例:at 7 oclock; at 2:30 pm; at noon; at midnight;(英式)at the weekend; at Christmas

复合表达:on Monday at 2 pm; on January 1st, 1990实用记忆技巧技巧1:层级记忆法大范围 → in(年、月、季节、上午/下午/晚上) 中范围 → on(具体日期、星期) 小范围 → at(具体时间点)

技巧2:关键词识别in的标志词: 年、月、季节、morning、afternoon、evening on的标志词: 日期、星期、特殊节日 at的标志词: 时间点、noon、midnight技巧3:场景记忆法

想象三个朋友:in朋友:住在大房子里(大范围时间)on朋友:站在桌子上(中等范围时间)at朋友:站在点上(小范围时间)技巧4:口诀记忆法年月季节用in,日期星期用on 时间点用at,层级关系要记牢 in

the morning下午晚上,on Monday星期二 at 8 oclock时间点,一张图记一辈子 职场英语实战应用会议安排"The meeting is on Monday at 2 PM." (会议周一下午2点)

"I will finish the report in March." (我三月份完成报告) 邮件沟通"I will send you the document on Friday." (我周五发给你文件)

"The deadline is at 5 PM tomorrow." (截止时间是明天下午5点) 工作汇报"I started this project in January." (我一月份开始这个项目)

"The presentation is on next Tuesday." (演示在下周二) 碎片时间学习法等电梯30秒: 在心里用in/on/at造句 坐地铁5分钟: 练习层级关系判断 午休10分钟:

用时间介词写一段工作计划学习效果: 每天坚持,一周就能掌握时间介词的精髓!实战练习题练习1:选择正确的介词I was born _____ 1990. A. in B. on C. atThe meeting is _____ Monday. A. in B. on C. at

I wake up _____ 7 oclock. A. in B. on C. atShe works _____ the morning. A. in B. on C. at答案: 1.A 2.B 3.C 4.A

练习2:翻译句子我1990年出生会议在周一我7点起床我上午工作参考答案:I was born in 1990.The meeting is on Monday.I wake up at 7 oclock.。

I work in the morning.特殊用法和注意事项1. 复合时间表达"I was born on January 1st, 1990." (具体日期用on) "The meeting is on Monday morning."

(星期+时间用on) 2. 特殊时间点atnoon(中午)atmidnight(午夜)atdawn(黎明)atdusk(黄昏)3. 美式英语vs英式英语美式:on the weekend(周末) 英式:at the weekend(周末)

总结:记住这4个要点要点1:层级关系in = 大范围时间(年、月、季节、上午/下午/晚上)on = 中等范围时间(具体日期、星期)at = 小范围时间(具体时间点)要点2:使用场景✅ 年份、月份、季节用in

✅ 具体日期、星期用on✅ 具体时间点用at要点3:常见错误❌ 混淆层级关系❌ 特殊时间表达错误❌ 复合时间表达错误要点4:记忆口诀年月季节用in,日期星期用on 时间点用at,层级关系要记牢 in the morning下午晚上,

on Monday星期二 at 8 oclock时间点,一张图记一辈子 关注我,每天分享一个英语语法干货,让你的英语更地道!#英语学习 #英语语法 #介词 #时间介词 #in #on #at #学英语

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