  The distributions of the bottom quark in the process $e^+ e^- \to t \,
\bar{t} \to b \, W^+ \, \bar{t}$ are considered at the $e^+ e^-$ energy
corresponding to the first construction stage of the Compact Linear Collider.
The cross sections of $e^+ e^- \to b \ldots$, as functions of the $b$-quark
energy and angle with respect to the direction of the electron beam, are
derived and calculated. The effects of physics beyond the Standard Model are
included via the modified $\gamma t \bar{t}$ and $Z t \bar{t}$ couplings which
naturally appear in effective field theories. In addition to the cross
sections, the energy and angular asymmetries are calculated. The dependence of
these observables on the $e^+ e^-$ energy is calculated, and features of this
dependence are investigated.
