domingo, 5 de diciembre de 2010

Wednesday, 1st December

AT  -  IN  -  ON

  • Prepositions of Place:  
AT
IN
ON
            for a POINT
   for a ENCLOSED SPACE
          for a SURFACE
at the corner/ the door
in the garden
on the wall/ the door
at the bus stop
in London
on the ceiling
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


Notice the use of the prepositions of place at, in and on in these standard expressions:
AT
IN
ON
at home
in a car
on a bus
at work
in a taxi
on a train
at school
in a helicopter
on a plane
at university
in a boat
on a ship
at college
in a lift (elevator)
on a bicycle, on a motorbike
at the top
in the newspaper
on a horse, on an elephant
at the bottom
in the sky
on the radio, on television
at the side
in a row
on the left, on the right
at reception
in Oxford Street
on the way

*************************************************


  • Prepositions of Time:  
AT
IN
ON
for a PRECISE TIME
for MONTHS, YEARS, CENTURIES and LONG PERIODS
for 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's Eve



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.
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