Imagination VS Knowlegde

Imagination is more important than knowledge.
Knowledge is limited. imagination encircles the world
(Albert Enstien )

Wednesday, January 12, 2011

Prepositions Of Time- At, In,On


We use:

  • at for a PRECISE TIME







  • in for MONTHS, YEARS, CENTURIES and LONG PERIODS
  • on for DAYS and DATES



at
in
on
PRECISE TIMEMONTHS, YEARS, CENTURIES and LONG PERIODSDAYS and DATES
at 3 o'clockin Mayon Sunday
at 10.30amin summeron Tuesdays
at noonin the summeron 6 March
at dinnertimein 1990on 25 Dec. 2010
at bedtimein the 1990son Christmas Day
at sunrisein the next centuryon Independence Day
at sunsetin the Ice Ageon my birthday
at the momentin the past/futureon New Year's Eve
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 nightThe stars shine at night.
at the weekendI don't usually work at the weekend.
at Christmas/EasterI stay with my family at Christmas.
at the same timeWe finished the test at the same time.
at presentHe's not home at present. Try later.

 

Notice the use of the prepositions of time in and on in these common expressions:

inon
in the morningon Tuesday morning
in the morningson 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 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)

 

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