表示時間的介詞
1. at, in 和on是用於表示時間的介詞，表示具體的時刻可以用at。
We got used to getting up at six. 我們習慣於6點起床。
I’ll meet you at a quarter to eight. 咱麼7點45分見。
2. 一天的各個時間最常見的片語有：in the morning, in the afternoon, in the evening, at daybreak, at sunrise, at noon, at night, at midnight等。
It always takes me ages to wake up in the morning. 每天早晨我都需要花好長時間才能醒過來。
three o’clock in the morning. 凌晨三點鐘。
I work best at night. 我在晚上工作效率高。
3. 如果專指某一天上午、下午等，或要對這天上午或下午加以描述，就用on而不用in。
See you on Monday morning. 星期一早上見。
On a cold afternoon in January, I met her in the street. 在1月的一個寒冷的下午，我在街上遇到了她。
On that particular evening, there was a strange excitement in the air. 在那個特別的晚上，空氣中都瀰漫著興奮。
I don’t like see people on the nights when I’ve been working late.當晚上工作很晚的時候，我不願意見別人。
4. 談到具體的某一天或特殊場合，用on。
Come back on Tuesday. 星期二回來。
On a summer day, in the month of May, he was born. 在5月的一個夏日，他出生了。
We are going to give him a surprise party on his birthday. 在他生日的時候，我們準備給他開一個驚喜晚會。
Granny’s coming to lunch on Christmas Day. 奶奶聖誕節來吃午飯。
5. 泛指聖誕節、新年、復活節時，都用at。
Are you going away on Easter? 復活節你們外出嗎？
Children feel happy at Christmas. 孩子們過聖誕節非常高興。
6. 談到較長的時間，如星期、月、季、年、世紀等時，用in。
It happened in Easter week. 事件發生在復活節的那一週。
What month were you born in? 你是那個月出生的？
We usually go to the beach in summer. 我們通常是夏季去海灘。
I went to Dalian in 1997. 我1997年去了大連。
In the 21st century, computer science will develop greatly. 在21世紀，計算機科學將會得到大發展。
表示時間的介詞
1. at, in 和on是用於表示時間的介詞，表示具體的時刻可以用at。
We got used to getting up at six. 我們習慣於6點起床。
I’ll meet you at a quarter to eight. 咱麼7點45分見。
2. 一天的各個時間最常見的片語有：in the morning, in the afternoon, in the evening, at daybreak, at sunrise, at noon, at night, at midnight等。
It always takes me ages to wake up in the morning. 每天早晨我都需要花好長時間才能醒過來。
three o’clock in the morning. 凌晨三點鐘。
I work best at night. 我在晚上工作效率高。
3. 如果專指某一天上午、下午等，或要對這天上午或下午加以描述，就用on而不用in。
See you on Monday morning. 星期一早上見。
On a cold afternoon in January, I met her in the street. 在1月的一個寒冷的下午，我在街上遇到了她。
On that particular evening, there was a strange excitement in the air. 在那個特別的晚上，空氣中都瀰漫著興奮。
I don’t like see people on the nights when I’ve been working late.當晚上工作很晚的時候，我不願意見別人。
4. 談到具體的某一天或特殊場合，用on。
Come back on Tuesday. 星期二回來。
On a summer day, in the month of May, he was born. 在5月的一個夏日，他出生了。
We are going to give him a surprise party on his birthday. 在他生日的時候，我們準備給他開一個驚喜晚會。
Granny’s coming to lunch on Christmas Day. 奶奶聖誕節來吃午飯。
5. 泛指聖誕節、新年、復活節時，都用at。
Are you going away on Easter? 復活節你們外出嗎？
Children feel happy at Christmas. 孩子們過聖誕節非常高興。
6. 談到較長的時間，如星期、月、季、年、世紀等時，用in。
It happened in Easter week. 事件發生在復活節的那一週。
What month were you born in? 你是那個月出生的？
We usually go to the beach in summer. 我們通常是夏季去海灘。
I went to Dalian in 1997. 我1997年去了大連。
In the 21st century, computer science will develop greatly. 在21世紀，計算機科學將會得到大發展。