定冠词基本用法:

1）特指某人、某事
Wellington is the capital of New Zealand. 惠灵顿是新西兰的首都。
2）指世上独一无二的事物
We have friends all over the world .我们的朋友遍天下。
The moon goes around the earth .月亮绕着地球转。
The sun is rising in the east .太阳在东方冉冉升起。
3）重提前文中提到过的人或事物（即文中第二次出现的人或事物）
He, suddenly, saw an isolated house at the foot of the mountain. And curiosity made him approaching the house. 他突然看到山脚下有一栋孤独的房子；好奇心驱使他向那栋房子走了过去。
4）说话人和听话人都熟悉的人或事物
Be sure to bring me the book when you come next time.
你下次来一定要将那本带给我。
5）用于序数词、形容词的最高级形式、和表示方位的名词前
Thanksgiving Day is on the 4th Thursday in November. 感恩节在每年十一月的第四个星期四。
Changjiang is the longest river in China. 长江是中国最长的河流。
Japan lies to the east of China .日本位于中国的东面。
He is one the most famous football stars in the world. 他是世界最著名的足球明星之一。

6）间或用于单数的可数名词前表示泛指
The compass was invented in China.指南针是中国发明的。
The horse is a useful animal .马是有用的动物。
The tiger is in danger of extinct .老虎有绝种的危险。
The monkey is a clever animal. 猴是一种聪明的动物。
注：这种"泛指"是从整个属类的意义上说，而不是"用一个人或物来说明整个属类的 特点"。也就是说，属前者情况时加用定冠词表示泛指，属后者情况时则加不定冠词表示泛指。

7）用于某些由普通名构成的专有名词前
the People's Republic of China 中华人民共和国
the United States of America 美利坚合众国
the Ming Dynasty 明朝 the Great Wall长城
the Great Cultural Revolution**

8）用于某些词组中。这种用法是约定束成的，我们只有遵从而无旁的选择。
in the morning ( afternoon , evening )上午（下午，晚上）
go to the cinema 看电影 on the whole总体上
to the best of就……所及 the sane as 和……一样
out of the question不可能的 on the one hand一方面
on the other hand 另一方面 on the average一般说来
on the contrary相反地 in the least 一点，丝毫
in the long run从长远来看 in the event of 万一
in the final analysis归根结底

9）定冠词+形容词使形容词名词化
We always stand for the oppressed and the exploited. 我们永远支持受压迫、受剥削的人们。
The aged are well taken care of in the community. 在这个社区，老人得到了很好的照顾。
She was fond of writing about the unusual. 她喜欢写一些古怪的题材。
The school for the deaf and the blind is just newly built. 那所聋哑人学校是刚刚新建的。

定冠词THE 的特殊用法
1)THE不能用在称谓前面 (THE is not used with titled names)
例:we met Mr.Wang.
I know Doctor Smith.
President Rice has been in the news.
2)THE 不能用在大洲的前面(THE is not used with the names of continents)
例:He lives in Europe.他住在欧洲
Asia is the largest continent.亚洲是一个大洲
Have you ever been in Africa?你到过非洲吗
3)The 不能用在大部分国家的名字前面
例:He lives in France.他住在法国
Brazil is a large country.巴西是一个大国
Have you ever been in Thailand?你到过泰国吗
4)The 只能用于几个少数的国家名字前面,他们是the Czech Republic捷克斯洛伐克共和国, the United Arab Emirates阿拉伯联合酋长国, the Dominican Republic多米尼加共和国, the Netherlands, the Philippines
例:He lives in the United States.
The Netherlands is in Europe. 尼德兰在欧洲(尼德兰:现在的荷兰和比利时)
Have you ever been in the Philippines?你到过菲律吗
5)THE不能用在城市名字前面(THE is not used with the names of cities)
例:He lives in Paris.
New York is the largest city in the United States.纽约是美国最大的城市
Have you ever been in Istanbul?你有到过伊斯坦布尔吗
6)THE 用在河流,海洋的前面(THE is used with the names of rivers, oceans, and seas)
例:The Nile River is long. 尼罗河(非洲东北部河流)
They crossed the Pacific Ocean. 太平洋
The Yellow sea is in Asia.黄海
7)THE 不能用在湖泊的前面(THE is not used with the names of lakes)
例:Chicago is on lake Michigan. 密歇根州(美国州名)
Lake Titicaca lies on the border between Peru and Bolivia. 的的喀喀湖[南美洲西部](在秘鲁同玻利维亚之间)
8)THE用在群山或山脉的前面(THE is used with the names of mountain ranges)
例:We hiked in the Alps.( 阿尔卑斯山 )
The Andes are in South America. (安第斯山脉 )
9)THE不能用个体的单独山峰前面(THE is not used with the names of individual mountains)
例:He climbed Mount Everest. 埃佛勒斯峰(喜马拉雅山主峰之一,中国称珠穆朗玛峰)
Mount Fuji is in Japan. 富士山(在日本本州岛上的死火山)

---

　　

1.定冠词the表特指

eg.I like the book.

2.用于姓氏前指某家人

eg.The Browns are in vacation

3.用于医生等职位前表示他们的办公室

eg.I am going to see the doctors

4.用于某些乐器前

eg.John likes playing the guitar