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Selasa, 06 Maret 2012

Preposition In, On, At





DefinitionA preposition is a word or groups of words used before a noun or a pronoun to show place, position, time or method. The prepositions inon, and at can be used to indicate time and place.




Prepositions: In, On, and At (with specific times and places)
The prepositions inon, and at can be used to indicate time and place. Notice how they are used in the following situations:



PrepositionTimePlace
InYear, Month,
In 1999, In December
Country, State, City
In Japan, In Utah, InTaipei
OnDay, Date
On Saturday, On May 1
Street
On Main Street, On 1st Ave.
AtTime
At 8:00, At 7:30
Address
At 815 East Main Street


In many languages, there is only one preposition for the above situations. In English there are three. Just remember that in usually indicates the "largest" time or place, and at usually indicates the "smallest" time or place. Examples: 

    A: Where's your office? B: In Taipei, Taiwan. A: Really? What part of Taipei? B: It's on Chung Shan North Road. A: I know that area. Where exactly is it? B: It's at 105 Chung Shan North Road, next to the bookstore. C: When is the wedding? D: It's in June. C: What day? D: It's on Saturday, the 25th. C: What time? D: It starts at 6:00.



Prepositions with articles and locations
When talking about locations, use at to indicate the general vicinity or area, andin to
indicate inside the building, enclosed area, etc. For example:
    at the swimming pool (on site)in the swimming pool (in the
    pool itself i.e. in the water)
    at the post office/bank (general)in the post office/bank (inside the building)
    at the zoo (visitors, general area)in the zoo (animals in their cages)
    at schoolin the classroom
Sample sentences: 
    I met my wife at the theater. (while watching a movie) I spilled my drink in the theater (on the floor of the building) She works at the library on Wednesdays. She found a rare coin in the library (building). Dr. Jones works at the hospital every day. John was in the hospital for a week with a broken leg.
For schoolprison, and churchthe is used to indicate the building. No articleindicates
the general situation. Note the following:
    "practice"/situationbuilding
    in school (studying, listening to teacher, etc.)in the school (building)
    in jail/prison (staying there as a criminal)in the jail/prison (temporary)
    in church (praying, listening to a sermon, etc.)in the church (building)

We use:

• at for a PRECISE TIME
• in for MONTHS, YEARS, CENTURIES and LONG PERIODS
• on for DAYS and DATES


at
PRECISE TIME

  • at 3 o’clock
  • at 10.30am
  • at noon
  • at dinnertime
  • at bedtime
  • at sunrise
  • at sunset
  • at the moment


in
MONTHS, YEARS, CENTURIES and LONG PERIODE

  • in May
  • in summer
  • in the summer
  • in 1990
  • in the 1990s
  • in the next century
  • in the Ice Age
  • in the past/future



on
DAYS and DATES
  • on Sunday
  • on Tuesdays
  • on 6 March
  • on 25 Dec. 2010
  • on Christmas Day
  • on Independence Day
  • on my birthday
  • on 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 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
  • in the morning
  • in the mornings
  • in the afternoon(s)
  • in the evening(s)

on

  • on Tuesday morning
  • on Saturday mornings
  • on Sunday afternoons
  • on Sunday 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)

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