This unit covers disasters, accidents, and precautions. It includes readings, listening exercises, and grammar lessons on the past continuous versus past simple tenses, reflexive pronouns, modal verbs like "must" and "can", and linkers. Vocabulary focuses on types of disasters and parts of the body. Speaking practices include narrating past experiences and giving news. Pictures show different types of disasters like fires, building collapses, volcanic eruptions, and floods. Grammar explanations cover the past continuous tense, reflexive pronouns, past perfect tense, modal verbs, and expressing possibility, duty, advice, permission and prohibition.