  In arXiv:0901.3543, the simplest Yukawa coupling $\eta\bar{\Psi}\phi\chi\Psi$
was considered for a two-scalar-generated Bloch brane model. Fermionic
resonances for both chiralities were obtained, and their appearance is related
to branes with internal structure. Inspired on this result, we investigate the
localization and resonance spectrum of fermions on a one-scalar-generated $dS$
thick brane with a class of scalar-fermion couplings $\eta\bar{\Psi}\phi^k\Psi$
with positive odd integer $k$. A set of massive fermionic resonances for both
chiralities are obtained when provided large couple constant $\eta$. We find
that the masses and life-times of left and right chiral resonances are almost
the same, which demonstrates that it is possible to compose massive Dirac
fermions from the left and right chiral resonances. The resonance with lower
mass has longer life-time. For a same set of parameters, the number of
resonances increases with $k$ and the life-time of the lower level resonance
for larger $k$ is much longer than the one for smaller $k$.
