英语定冠词the的用法口诀（定冠词the的用法）
定冠词的四种特指用法 表示特指是定冠词的最基本用法，这里所说的“特指”至少有以下几层意思： 1. 特指上文提到过的人或物。
如： We have a cat and two dogs. The cat is black and the dogs are white. 我们养了一只猫和两只狗，猫是黑的，狗是白的。
A boy and a girl in my class fell in love. The boy toldthe girl that he wanted to see her parents. 我班上一个男孩和一个女孩恋爱了。
那男孩告诉那女孩说他想要见见她父母。
2. 特指说话双方都知道的人或物。
如： Open the door, please. 请把门打开。
Pass me the dictionary, please. 请把词典递给我。
3. 用于带后置定语的名词前，表示特定的人或物。
如： Pass me the magazine on the desk. 请把桌上的杂志递给我。
The man who wrote the book is a friend of mine. 写这本书的那个人是我的一个朋友。
比较： We need the boy who knows French. 我们需要这个懂法语的男孩。
(特指谈到的某个懂法语的男孩) We need a boy who knows French. 我们需要一个懂法语的男孩。
(泛指任意一个懂法语的男孩) 4. 用于比较级前，特指两个被比较的对象的一个。
如： Of the two brothers, the younger is more interesting. 在这两兄弟中，年轻的这个更有趣。
There are two books on this subject, but I am not sure which is the better. 关于这个题目的书有两本，但我不肯定哪一本更好。
基本用法：1. 特指某（些）人或某（些）事物。
Give me the book. Did you hear the talk given by Mr Li? How do you like the film. Have you got the letter? 2. 指谈话双方都知道的人或事物。
Where is the teacher? Open the door. 3. 复述上文提过的人或事物。
I have a beautiful wallet, but the wallet was stolen yesterday. 4. 世界上独一无二的事物等（月亮、地球、天空、宇宙） The sun rises in the east. The earth goes round the sun. the globe, the universe. the atmosphere大气层 5. 用在方位名词前 in the south, in the west ,in the north 6. 用在序数词或形容词最高级前 The first thing I want to say is to listen carefully in class. He is the tallest one in our class. 7、表示两者间“较……的一个”时用定冠词 The older of the two noblemen took a light. He is the taller of the two boys. 8. 用在单数可数名词前表示一类人或事物。
The horse is a useful animal. 9. 定冠词用在形容词前，表示一类人或东西。
The rich, the poor ,the wounded ,the deaf 10. 冠词可用在党派、阶级、民族名词前 The Chinese people中华民族 The working class 工人阶级 The Communist Party 1用在姓氏的复数形式前表示一家人，或这一姓的夫妇二人。
The Lius live upstairs. The Johns are watching TV. 12、在乐器前加the the piano the violin 13、在习惯性短语中 in the morning in the afternoon 14、在人或物后有限定性的后置定语 The man standing by the gate is Li Feng. 15、代替所有格代词，表示人体的一部分 He received a blow on the head 他头上挨了一击。
John’s brother took him by the hand. 约翰的哥哥牵着他的手。
16、在世纪，年代名词前用冠词。
In the 1980s或in the 1980’s 20世纪80年代 in the nineteenth century 二十世纪。