Hortatory exposition is a type of spoken or written text that persuade the listener or reader that something should or should not be the case.
The generic structure of hortatory exposition:
~thesis: state an issue of concern
~arguments: give reason for concern, lead to recommendation.
~recommendation: state what ought or ought not to happen.
Hortatory exposition are most used in letter to the editor, speeches, advertisement, plead in a trial case.
Hortatory exposition always uses present tense.