My studies show that the Four-frontaled scales grass lizards [Eremias quadrzrifrons(strauch)] are only the variation individuals from Eremias argus and Era nias multiocellata resulting from longitudinal.

This paper bring a individual mutation strategy in ACA,which makes the parameters of individual in the ant colony cause to change,enables the strategy of ants\' route selection to possess variety by coordinating the intensity of the pheromone gent and the effect of the distance gene in the probability function.

A good group dynamic can ensure a successful foreign language teaching in classroom,but students’ individual differences to some extent prevent a good group dynamic from shaping up.

In order to be successful in teaching pragmatics,some key factors:input availability in terms of environment,significance of instruction,the relationship between grammatical competence and pragmatic competence,pragmatic transfer and individual differences influencing L2 pragmatic competence in FL settings should be taken into considerations in the second language teaching.