1. The document discusses the future simple tense and how it is used to describe future actions. It explains that will is used for future predictions and facts, as well as spontaneous responses, promises, requests, threats and orders.
2. Going to is used to show future intentions and plans. It is used for predictions based on present evidence. Both will and going to are used for predictions, sometimes with little difference in meaning.
3. The document provides examples of conversations using future tense and presents activities for students to practice and demonstrate their understanding of future simple tense.