同学你好，该知识点来自沪江网校《考研英语零基础突破【基础班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

the是首先修饰名词的,用法有
1.第二次提到某物 This is a book.The book is mine.
2.谈话双方所知道的事物Open the window ,please.
3.世界上独一无二的事物the sun,the moon,the earth
4.方向The sun rises in the east.
5.江河湖海the Yellow River the West lake
6.乐器the piano,the violin
7.一个名词被一个介词词组修饰,把介词词组放在名词的后面,the放在名词的前面.The box on the desk is hers.The girl in red is her sister.
8.形容词的最高级和序数词前February is the second month of the year
The Changjiang River is the longest river in China.
9.用于单数可数名词前表示一类人和事物.The apple is a kind of fruit.
10.用在由普通名词构成的专有名词前the Summer Palace
11.用在名词化的形容词前表示一类人和事物the rich ,the poor,the old
12.用在姓氏复数前,表示一家人或一个家族the Smiths
13.the+比较级+the+比较级表示越来越.The more we get together,the happier we will be.