从八个方面来学习一下哪些时候不用定冠词"the"。
一、定冠词不与表示一类人或事物的复数名词连用。例如：
1. I like reading the books.(×)I like reading books.(√)
2. She likes the cats.(×)She likes cats.(√)
二、定冠词不能用在某些习惯用语中的名词前面。例如：
1. I have lunch at the noon.(×)I have lunch at noon.(√)
2. We go to school by the bus.(×)We go to school by bus.(√)
三、定冠词不能用在某些专用名词和不可数名词前面。例如：
1. I like the China.(×)I like China.(√)
2. Would you like a cup of the water? (×)
Would you like a cup of water?(√)
四、定冠词不能用在节日、日期、月份、季节前面。例如：
1. Today is the Teachers' Day. (×)
Today is Teachers' Day.(√)
2. He was born in the May in 1987. (×)
He was born in May in 1987. (√)
五、定冠词不能用在表示称呼语或某些头衔的名词前面(尤其作表语、宾补时)。例如：
1. Good morning, the sir!(×)
Good morning, sir! (√)
2. I need some help, the Mummy.(×)
I need some help, Mummy.(√)
六、定冠词不能与名词前已有作定语用的this, that, my, your, some, any等代词连用。例如：
1. This the pen is mine. (×)
This pen is mine.(√)
2. I have the some money. (×)
I have some money. (√)
七、定冠词不能用在表示科目名词的前面。例如：
1. We will learn the Chinese, the history and the Maths this afternoon. (×)
We will learn Chinese, history and Maths this afternoon.(√)
2. The English is the most interesting of all the subjects.(×)
English is the most interesting of all the subjects.(√)
八、定冠词不能用在三餐和球类运动名词的前面。例如：
1. She goes to school after the breakfast every morning.(×)
She goes to school after breakfast every morning.(√)
2. We often play the football after school. (×)
We often play football after school. (√)