This paper deals with what have been going on in the field of investigations on the crystalline behaviors, orientation behaviors, orientation mechanism of biaxially oriented polypropylene(BOPP) films and some important results, and the author points out some aspects that domestic researchers should pay more attention to.

In the theoretical orientation, cognition outlook and social cognition outlook have replaced the early mechanic theory, and do the research integrating learning motivation with learners concrete environment and the cognitive elements in the learning, and start to pay attention to the developmental issues of learning motivation.

The network environment enables the social interaction pattern of university students to be greatly different from the real life,which is shown as "the affair orientation".