This document discusses adverbs and their functions. It explains that adverbs can describe verbs, adjectives, and other adverbs. It provides examples of adverbs describing verbs by indicating how, when, where, or to what extent the verb occurred. Examples are also given of adverbs describing adjectives by modifying their intensity. The document also notes that adverbs can split verb phrases or describe other adverbs. Practice sentences throughout illustrate these different uses of adverbs.