专题五 冠词
重难点精析
不定冠词a或者an的区别及用法（二零一二考查3次；二零一一考查1次）
不定冠词a或者an是“一个”的意思。a用在以辅音音素开头的单数名词或字母之前，an用在以元音音素开头的单数名词或字母之前。经常在考题中出现的有：
A a an apple / an artist / an aunt / an Asian country / an American girl
E e a European country / an egg/ an eightyearold boy / an eleven year old boy
I i an idea / an interesting story
O o a one eyed wolf /an orange / an old man / an outgoing girl
U u a useful book / a university student / a UFO / a usual story/an umbrella / an ugly man / an uncle / an unusual story / an unhappy smile
