Preposition

What is Preposition ?

Definition: Prepositions are a class of words that indicate relationships between nouns, pronouns and other words in a sentence. Most often they come before a noun. They never change their form, regardless of the case, gender etc. of the word they are referring to. Some common prepositions are:

about       by            outside
above      despite      over
across     down        past
after        during       since
against     except      through
Prepositions typically come before a noun:
For example:

• after class
• at home
• before Tuesday
• in London
• on fire
• with pleasure

A preposition usually indicates the temporal, spatial or logical relationship of its object to the rest of the sentence.
For example:

• The book is on the table.
• The book is beside the table.
• She read the book during class.
  
  In each of the preceding sentences, a preposition locates the noun "book" in space or in time.

Prepositions are classified as simple or compound.
Simple prepositions
Simple prepositions are single word prepositions. These are all showed above.
For example:

• The book is on the table.

Compound prepositions
Compound prepositions are more than one word. in between and because of are prepositions made up of two words - in front of, on behalf of are prepositions made up of three words.
For example:

• The book is in between War and Peace and The Lord of the Rings.
• The book is in front of the clock.

Examples:

• The children climbed the mountain without fear.
• There was rejoicing throughout the land when the government was defeated.
• The spider crawled slowly along the banister.

The following table contains rules for some of the most frequently used prepositions in English:

Prepositions of Time:
-  on               day of the week                  on Monday
-  in               months / seasons                  in August / in winter
                     time of day                           in the morning
                     year                                     in 2006
                     after a certain period            in an hourat
                     of time (when?)
  - at              for night                             at night                   
                     for weekend                       at the weekend
                     a certain point                     at half past nine
                     of time (when?)

Prepositions of Place:

in                room, building, street, town, country       in the kitchen, in London

                      book, paper etc.                                     in the book
                      car, taxi                                                  in the car, in a taxi                
                      picture, world                                         in the picture, in the world 
- at                 meaning next to, by an object               at the door, at the station
                      for table                                                at the table
                      for events                                               at a concert, at the party
                      place where you are to do                      at the cinema, at school,at work
                      something typical (watch a film, study,work)
- on                attached                                                the picture on the wall
                      for a place with a river                           London lines on the Thames
                      being on a surface                                  on the table
                      for a certain side (left, right)                    on the left
                      for a floor in a house                               on the first floor
                      for public transport                                 on the bus,on a plane
                      for television, radio                               on tv, on the radio

Preposition Song



Complete the exercise according to the picture.

AtInOn the picture, I can see a woman.

The woman is sitting atin front ofon a table.

She is sitting atinon a chair.

There is another chair acrossbesideopposite the woman.

Her feet are besideonunder the table

The woman is holding a cup atininto her hands.

AboveAtOn the table are a laptop, a paper, a calculator, an appointment calendar, two pens and a muffin.

The woman is looking atonto her laptop.

The woman's bag is betweenbehindunder the table.

........................................................................................................................
Reference
http://www.englishlanguageguide.com/english/grammar/preposition.asp
http://www.ego4u.com/en/cram-up/grammar/prepositions
http://www.ego4u.com/en/cram-up/grammar/prepositions/exercises?07