英语语法入门：不定冠词a&an

2012-05-06 00:52:45　

1. We use the indefinite article, a/an, with count nouns when the hearer/reader does not know exactly which one we are referring to:

当听的人或者读者不清楚我们确切指得是哪个的时候，我们用不定冠词a/an来形容可数名词：

Police are searching for a 14 year-old girl.

2. We also use it to show the person or thing is one of a group:

我们也可以用来表示该人或物是同一组：

She is a pupil at London Road School.

英语语法入门：不定冠词a&an

3. We do not use an indefinite article with plural nouns and uncount nouns:

我们不用不定冠词来修饰复数或者不可数单词：

She was wearing blue shoes. (= plural noun)

She has short blonde hair. (= uncount noun)

英语语法入门：不定冠词a&an

4. We use a/an to say what someone is or what job they do:

我们用a/an描述他人的工作：

My brother is a doctor.

George is a student.

5. We use a/an with a singular noun to say something about all things of that kind:

我们用a/an形容一个单数名词来表示一类事物：

A man needs friends. (= All men need friends)

A dog likes to eat meat. (= All dogs like to eat meat)

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