This document discusses key words in sentences. It begins by defining nouns as names and verbs as actions. It then explains that nouns and verbs carry the key meaning in a sentence as they indicate who is doing what. Several examples of sentences are provided and it is noted that identifying the nouns and verbs allows one to quickly understand the key idea. The document also discusses how recognizing key words is useful for reading comprehension, newspapers, deciding if a book is good, and speed reading. Finally, it provides a learning activity to practice underlining key words in sentences.