定冠词the的用法?太久不用英语混淆了看到同事的签名是：Let me take you to the Jianshan(一个小县城).在习惯用语中一般不用the+地名吧,但是指特定、独一无二的可以用the...

.用来表示特指或者双方都知道的人或事：The man over there is John's uncle.
2.表示第二次提到:There is an English book on the desk.The book is Li Lei's.
3.用在世界上独一无二的名词前：The sun is bigger than the earth.
4.用在形容词*和序数词前面：This is the highest building in this city.
5.用在乐器名词钱：My sister can play the piano and the violin.
6.用在方位名词前:in the west/east/south/north on the left/right.
7.用在形式复数形式前，表示一家人或夫妇：The Smiths are watching TV.
8.和形容词连用，表示一类人：The old should be looked after well.
9.用在江河湖海及山脉名次前：The Changjiang River is the longest river in China.
10.有介词短语或定语从句修饰的名词前:The girl in red(=whos is wearing red)is my sister.
不用冠词的情况
1.在专有名词(国名、城市名、人名、路名)前不用冠词:Beijing is a beautiful city.
2.表泛指的不可数名词或复数名词前不用冠词:Snow is white and beautiful.
3.在球类运动、棋类和学科名词前不用冠词:Mr Zhang likes playing football and chess.
4.在季节、月份、星期、节日和三餐饭前不用冠词:
Today is Children's Day.
All the students have lunch at school.
注意：①中国传统节日前面一般加"the":the Mid-Autumn中秋节 the Spring Festival春节
②具体某年的季节前一般加"the":in the winter of 2009在2009年的冬天
③三餐饭前有形容词修饰时，可以用冠词:have a nice breakfast.吃一顿美味的早餐
5.在称呼语或表示头衔的职位名词前不用冠词:Mr Wang is from Australia.
6.名词前有"this,that,those,these,my,your,some"等词修饰时不用冠词:This is my best friend.

地名前不用the,原句该删除之