Read the introduction to Desert Challenge. Which objects in exercise 1 will people probably need on a desert trek? (Đọc phần giới thiệu về Thử thách sa mạc. Những đồ vật nào trong bài tập 1 có lẽ mọi người sẽ cần khi đi bộ trên sa mạc?)

Desert Challenge is a tough desert survival course for over-thirteen-year-olds. Participants will spend five days in the desert with experienced guides. The challenge will test your survival skills and you will learn about the desert environment. At the end of the course, participants will receive the Desert Challenge Award. To join the challenge you must be fit and you must prepare very carefully.