The article has a discussion on inevitable knowledge,reveals the inevitability of the general principle of cause and effect,expounds the rationality of cause-and-effect reasoning and inductive reasoning,and thus leaves the Hu.

This dramatic change calls for new knowledge reserve and structure of the geology scientists and technicians.

College teachers must possess subject knowledge reserve,comprehensive knowledge reserve,teaching ability knowledge reserve,innovating ability knowledge reserve for doing well classroom teaching.

In this article,firstly,the author will analyze the dominant function of culture-oriented fourist guides,summarize with the combination of man,nature and culture;at last,a brief research on the knowledge preparations of the touist guide is offered.