冠词的特殊用法：

1. 形容词或分词前加定冠词，相当于名词，表示具有形容词性质一类的人或事物。例如：the rich富人, the poor穷人, the young年青人, the old 老年人, the following下面的, the wounded伤员。

2. 形容词或副词前加定冠词，构成“the more…… the more ……”,句型，表示越……，越……。例如：The higher the mountain is, the thinner the air becomes. The harder you work the greater progress you will make.

3. 不定冠词用于表计量单位的名词前，表示每一的意思。例如：Take this medicine three times a day. The fish cost two dollars a kilogram.

4. 冠词用于固定短语中，在固定短语中有用定冠词的，有用不定冠词的，也有用零冠词的。

用定冠司的短语有：in the end, at the moment, on the left, on the right, at the same time, by the way, all the same , at the same time, in the morning, in the afternoon, the same as, with the help of , the number of 用不定冠词的有：a mummer of , in a hurry, catch a cold, make a living, as a result, in a word, have a word with, a lot of , once upon a time , in a way.

用零冠词的有：on business, on duty, in fact, on foot, at present, in public, on show, on time, in time, make fun of, at night, in danger, from time to time, for example, take part in , take pride in, day by day, in person, in trouble, make sense.