In biochemistry teaching,to arouse students' enthusiasm,to raise study efficiency,we should pay attention to kindling interests,enlightening thinking,improving their study methods.

The author believes that the application of multi-media courseware to biochemistry teaching makes the bald class lively,vivid and interesting and it also arouse the students interest effectively and improve the teaching quality.

Guided by the spirits of the new curriculum reforms, the paper studied the life-oriented teaching of politics in high school systematically.

This paper analysis the feasibility of applying ecological theory to study instruction,illustrates the features and meanings of ecological instruction,then sets forward a serious of strategies to promote ecological instruction of landscape planning and design.