* at for a PRECISE TIME
* in for MONTHS, YEARS, CENTURIES and LONG PERIODS
* on for DAYS and DATES
at| in| on|
PRECISE TIME| MONTHS, YEARS, CENTURIES and LONG PERIODS| DAYS and DATES| at 3 o'clock| in May| on Sunday|
at 10.30am| in summer| on Tuesdays|
at noon| in the summer| on 6 March|
at dinnertime| in 1990| on 25 Dec. 2010|
at bedtime| in the 1990s| on Christmas Day|
at sunrise| in the next century| on Independence Day|
at sunset| in the Ice Age| on my birthday|
at the moment| in the past/future| on New Year|
Prepostion| Meaning| Example|
after| later than sth.| after school|
ago| how far sth. happened (in the past)| 6 years ago|
before| earlier than sth.| before Christmas|
between| time that separates two points| between Monday and Friday| by| not later than a special time| by Thursday|
during| through the whole of a period of time| during the holidays| for| period of time| for three weeks|
from ... to
from... till/until| two points form a period| from Monday to Wednesday from Monday till Wednesday
from Monday until Wednesday|
past| time of the day| 23 minutes past 6 (6:23)|
since| point of time| since Monday|
till/until| no later than a special time| till tomorrow
Look at these examples:
* I have a meeting at 9am.
* The shop closes at midnight.
* Jane went home at lunchtime.
* In England, it often snows in December.
* Do you think we will go to Jupiter in the future?
* There should be a lot of progress in the next century.
* Do you work on Mondays?
* Her birthday is on 20 November.
* Where will you be on New Year's Day?
Notice the use of the preposition of time at in the following standard expressions: Expression| Example|
at night| The stars shine at night.|
at the weekend| I don't usually work at the weekend.|
at Christmas/Easter| I stay with my family at Christmas.| at the same time| We finished the test at the same time.| at present| He's not home at present. Try later.|
Notice the use of the prepositions of time in and on in these common expressions: in| on|
in the morning| on Tuesday morning|
in the mornings| on Saturday mornings|
in the afternoon(s)| on Sunday afternoons|
in the evening(s)| on Monday evening|
When we say last, next, every, this we do not also use at, in, on. * I went to London last June. (not in last June)
* He's coming back next Tuesday. (not on next Tuesday)
* I go home every Easter. (not at every Easter)
* We'll call you this evening. (not in this evening)
Prepositions of Place: at, in, on
In general, we use:
* at for a POINT
* in for an ENCLOSED SPACE
* on for a SURFACE
at| in| on|
POINT| ENCLOSED SPACE| SURFACE|
at the corner| in the garden| on the wall|
at the bus stop| in London| on the ceiling|
at the door| in France| on the door|
at the top of the page| in a box| on the cover|
at the end of the road| in my pocket| on the floor|
at the entrance| in my wallet| on the carpet|
at the crossroads| in a building| on the menu|
at the front desk | in a car| on a page|
Look at these examples:
* Jane is waiting for you at the bus stop.
* The shop is at the end of the street.
* My plane stopped at Dubai and Hanoi and arrived in Bangkok two hours late. * When will you arrive at the office?
* Do you work in an office?
* I have a meeting in New York.
* Do you live in Japan?
* Jupiter is in the Solar System.
* The author's name is on the cover of the book.
* There are no prices on this menu.
* You are standing on my foot.
* There was a "no smoking" sign on the wall.
* I live on the 7th floor at 21 Oxford Street in London.
Notice the use of the prepositions of place at, in and on in these standard expressions:...