Solution: reasonably take Gaussian surface and apply Gaussian theorem.

(1) Taking the Gaussian surface from the inside of the inner shell, we can get that the electric field intensity is different everywhere on the surface of the inner shell, so the induced charge distribution is uneven.

(2) When the Gaussian surface is between the inner shell and the outer shell, the sum of the point charge and the induced charge is zero, and the electric fields in all parts of the Gaussian surface are the same, so the distribution is uniform.