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THE INDEFINITE ARTICLE

Use of a/an Examples
1. Before a singular countable noun, when it is mentioned for the first time and represents no particular person or thing: I can see a book on the table. They live in a flat. He bought an ice-cream.
2. Before a singular countable noun which is used as an example of a class of things: A child needs love = All children need/Any child needs love.
3. With a noun complement. This includes names of professions: My friend is a manager. She'll be a dancer.
4. With certain numbers.     Before half when half follows a whole number. But kg = half a kilo, though a + half + noun is sometimes possible. With , ,etc a is usual: a dozen, a hundred, a million (but one dozen, one hundred, one million is also possible). kilos = one and a half kilos or a kilo and a half; a half-holiday, a half-portion, a half-share; a third, a quarter etc., but one is also possible.
5. In expressions of price, speed, ratio etc.: 5p a kilo, sixty kilometres an hour, four times a day; (Here a/an=per)
6. Before a singular countable noun after the word whatin exclamatory sentences and after the wordssuch, quite, rather: Such a long queue! Such long queues! What a pretty girl! What pretty girls! She is still quite a child. It is rather a difficult problem.
7. With the nouns in the function of apposition. But when the apposition refers to a well-known person the is used: The report was made by Petrenko, a student of our University. Jack London, the great American novelist, was born in San Francisco.
8. In a number of set expressions: a lot of, a great many, a great deal of, a good deal of, a great number of, a good many, a couple, a little, a few, at a speed of, at a time when, at a time, in time, on a large (small) scale, all of a sudden, by bus (train), to be in a hurry, to be in a position, to be at a loss, it’s a pity, for a short (long) time, as a result of, as a matter of fact, to have a good time, to have a mind, in a loud (low) voice, to have a look, to have a headache, to take a sit, to have a cold, to go for a walk.

Date: 2015-12-11; view: 1357


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