Based on the model of nuclear-collision geometry,the independent N-N collis
ion picture and participant contribution picture are used to describe the t
ransverse-energy distribution inp-A collisions at high energy. In the indep
endent N-N collision picture, the energy loss of leading proton in each p-N
collision is considered. The calculated results are in agreement with the
experimental data of p-Al, p-Cu, and p-U collisions at 200 GeV/c.