The document discusses stress and intonation in English pronunciation. It explains that stress refers to pronouncing certain syllables with more force to make them stand out. Words often have a primary and secondary stressed syllable. Intonation involves variations in pitch to indicate questions, pauses, and emotions. Falling intonation lowers the pitch at the end of statements and some question types, while rising intonation raises the pitch for yes/no questions. Correct stress and intonation are important for intelligible English speech.