英语中时间名词前介词的用法

时间名词前介词的用法

一、用in的场合

(1)表示在某年/月/季节”这个含义时，须用介词in。例如：in 1980.

(2)表示从现在起一段时间以后”时，须用介词in。例如：They will go to see you in a week.

(3)表示在某世纪”时，须用介词in.例女口:This mach ine was inven ted in the eightee nth cen tury.

(4)表示”在早上、下午、晚上须用介词in.例女口： in the morning / eve ning / after noon

二、用on的场合

(1)表示在具体的某一天”或“(在具体的某一天的)早上、中午、晚上”等，须用介词on。例如：on May 10th,1982，on a rai ny morni ng，on a summer after noon.

练习：

This festival is a cheerful occasion, for ______ this day, the dead are said to return to their homes and

they are welcomed by the liv ing

这是个欢乐的日子，据说这一天，死者回家而活着的人欢迎他们

Mother's Day is _______ the sec ond Sun day of May. It ' a day to tha nk mothers. On that

day mothers usually get flowers and cards from their children.

(2)表示在星期几”或在星期几的早上、中午、晚上”等，须用介词on。

例如：on Saturday，on Saturday morning, on weekdays在平时/周日

(3)表示在某一节日”时，须用介词on。

例如：on Mid-autumn Festival, on Teachers' Day.

注意：当morning,evening,afternoon被of短语修饰，习惯上用in,而不用on.例如：

in the early morni ng of September 10th 在9 月10 的清晨；in the late after noon of September 12th 在9月12日的傍晚。

三、用at的场合

(1)表示某一具体时刻(即几点几分时) ”须用介词at。例如：at six

(2)用在特定的时候(时节、时机)时，须用介词at。例如：

They were happy at that time.他们那时很幸福。

(3)表示在中午、在夜晚、在午夜、在周末(也可用

on) ”时，须用介词at。

例如：at midnight, at/on weekends

What do you often do at noon?你中午经常做些什么？

You can see many stars in the sky at night.夜晚你能看到天空中有许多星星。

(4)表示在……岁”时，须用介词at。例如：

At the age of nine ,the boy could swim well.在九岁的时候，这孩子就游泳游得很好了。

四、用by的场合

by+时间名词。意为：到…时(已发生某事)，此时谓语多用完成时；最晚、不迟于…，在…之前”。如: by now/then/this time/next Friday/the end of/three o'clock 等。

By the end of last year,another new gymnasium had been completed.

到去年年底，又有一座新体育馆峻工了。

The train leaves at 6:00 pm.So I have to be at the station by 5:40 pm at the latest. 火车下午六点开，所以最晚我得五点四十赶到车站。

时间名词前不用介词的情况

1. 在today, tomorrow, yesterday, the day before yesterday,等表示时间概念的名词前一般不用介词。例如：

1) What are you going to do tomorrow?

2) We have had six lessons today.

3) We had a good time the day before yesterday.

2. 由this, that ,these, those等用于表示时间概念的名词前，前面往往不加介词。例如：

1) That morning he got up very early.

2) What are you busy with these days?

3. 由next, last, the next, the last等用于表示时间概念的名词前时，前面不用介词修饰。例如：

1) We pla nted many trees last spri ng.

2) She said she would pay a trip to Suzhou the n ext mon th.

3) The very next time I saw her, she was working in London.

4. 在each, any, every, some, all等用于表示时间概念的名词前，一般不用介词来修饰。例如：

1) The buses go every 10 minu tes.

2) Jack coughed all night.

3) We have to get up very early every/each day.