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. (√)