Terms specific to postcolonial discourse such as double consciousness,dual consciousness,race and culture construct are adopted to analyze different quests for the racial identity by Joe,Tea Cake and Janie,which reveals the true identity of African Americans between black and white culture.

Toni Morrison s double consciousness in Tar Baby;

Alice Walker’s famous short story Everyday Use reveals the complex struggles for the realization of American dream of black people affected by the "double consciousness" and their racial identification in the Civil Rights Movement.

Terms specific to postcolonial discourse such as double consciousness,dual consciousness,race and culture construct are adopted to analyze different quests for the racial identity by Joe,Tea Cake and Janie,which reveals the true identity of African Americans between black and white culture.

Du Bois and the concept of double-consciousness he interpreted,this paper illustrates the reasons why Black Americans suffered the inward ambivalence and interior dilemma.

The main types of cooperation can be classified as economic cooperati on ,political cooperation and thinking coop eration One should consciously develop t he cooperation awareness in the course o f constructing an all-round w.

The results showed that the use of the courseware can promote the students’ special quality and performance,formation of motor skills,interpretation of special knowledge,and capacity of evaluation;can guide the students’ participation of training,and cultivate their cooperation awareness.

The activity of our education the teaching should pay attention to educating the student s cooperation consciousness and cooperation ability, to make the student learn to cooperate from study and to exist from cooperation .