定冠词的用法，在高考中出现的频率是比较高的。为了帮助同学更好掌握定冠词的用法，现在现我总结一下定冠词的用法：
1．特指
eg: We must take action to prevent the spread of H7N9.
2．说话双方都知道。
例如： Tom, please close the door.
3．上文提到过。这个用法简单，我就不举例了。
4．表类别：
eg: The biggest whale in the world, the blue whale, is in danger of dying out now.
强调与其他类别的区别
5．独一无二的事物
注: 当有修饰语时用a
6．方位名词之前
eg: Turn to the left, and you will find the cinema.
in/on/to the east
方位副词不用the
eg: East of the city stands a tower.
= in the east
7．表示一类人the blind/rich/poor/deaf
8．西洋乐器前（中国传统乐器，往往用拼音构成零冠词）
play erhu
9．发明物前
eg: The compass was invented by Chinese.
Bell is considered to have invented the telephone in 1876.
10．序数词和最高级前
eg: The earliest coins in the world were used in China.
You'll find the dictionary a most useful tool when studying English.
12. the＋姓氏S表示一家人
eg: The Smiths went on an around-the-world trip.
The film directed in HongKong was popular in the 1990s/in the 1990's.
13．用在世纪或逢十的复数年代前或朝代。
This event happened in the Tang Dynasty/the 2010s.
14．身体部位用the
He hit me by the head.
15．在单位名词前加定冠词
eg: As a rule, domestic servants doing odd work are paid by the hour.
by the dozen/kilo , by weight
16．江河湖海等、海湾、海峡、沙漠
the Yangtze River
the Atlantic Ocean
the English Channel
the Tiwan Straits
the Sahara Desert
17．由普通名词构成的专有n.
the United Nations (U. N.)
the British Museum
the World Trade Organization
the Students' Union
18. the＋比较级，表示两者中更……
eg: Of the two paintings, the right one looks the better.
19. the＋比较级，the＋比较级“越……越……”
eg: The more love you give, the more love you'll get.
The more knowledge you learn, the better you'll be prepared for the future. the better you'll be equipped for your future life.
20．固定搭配
take the place of
on/over the radio/phone
in the air悬而未见；在空中
on the air广播中
in the bath
go to the cinema/theater
in the distance在远方／at a distance
the ABC(s) of sth……的基础知识／入门知识
希望上述总结，对同学们有帮助。希望继续关注与转发。
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