The author has done a relevant questionnaire on the motive factors of witness′ passive testimony,aiming at analyzing the inherent reasons for this problem,and proposes some feasible countermeasures to solve this problem.

Based on the positive role, negative role and its cause, the article expounds the influence which is from the progress of sicience and technology on education.

However,it plays a negative role in world econ.

This article discusses the negative effect of stereotype in colleges teaching and administration, and it introduces some method to control these negative effects.

In view of its dual characteristics, we should adopt a correct attitute towed its duality and bring into full play its positive effect to overcome its negative effect, turning its negative effect into its posifive effect so as to develop students better thinking quality.

They have both a positive and a negative effect on foreign language learners.

This paper expounds the importance of online game for the healthy growth of juvenile,analyzes on the positive influence of online game on healthy growth of juvenile,and in the light of the negative function of online game on juvenile,advances some countermeasures.

However its negative influence was obvious: it did not agree with the traditional culture and failed to win support from the people; it could not unite more groups of anti-Qing government but only became means by which the leaders of the Taiping Heavenly Kingdom struggled for their rights and benefits.