This document discusses adjectives and their usage. It defines adjectives as words that describe or modify nouns. It explains that adjectives usually appear immediately before the noun they modify. Adjectives can also express degrees of comparison, such as using -er and -est endings. Some adjectives are followed by specific prepositions like "on" or "of" depending on their meaning. The document provides examples of adjectives using these prepositions and exercises for learners to practice.