The article discusses the cognitive condition from three aspects,where the language violence lives and multiplies,and proposes the solutions which have a positive effect on the pedagogues and students.

How does a child undersand a word that he has never encountered before? Without a professional language teacher s instruction or a dictionary s explanation,how does he acquire a new word? What is the cognitive condition for this learning process? An understanding of this sheds light on an understanding of the cognitive condition for the learning of vocabulary of a foreign language.

Since 1980s, teacher’s knowledge has became the hot topic of discussion for various countries teacher to research in education area;“teacher conditional knowledge”is the important component of“teacher knowledge”, also receives the attention day by day.