Based on the analysis of the above—mentioned theories, the author puts up a new doctrine, which can be called Theory of Domination or Significant Impact, that is, the foundation of tort liability for the acts of others is the relationship of controlling and being controlled.

On the basis of victim s fault influencing conviction and sentencing,scholars in the West counties proposed two theories,the shared responsibility doctrine and the offender s culpability mitigated.

Based upon China s relevant provisions of the law,this paper analyzes legal basis,components and responsibility,and clarifies the basic principles needed to resolve related issues.

This dissertation, focusing on the present situation in rural areas, facing the characteristics of some cases, and drawing lessons from some foreign countries, expounds and proves the government\'s responsibility to provide for the aged.