Des Jones, a TV and radio sports commentator from Britain, is visiting Hong Kong. He's a friend of Miss Lee, one of your PE teachers who has invited him to the school to give a talk.
Miss Lee asks him which sport he finds the most exciting to commentate on. His answer is a bit of a surprise.
Des: I love commentating on all sports but there is one that really gets my adrenaline going more than the others.
Miss Lee: Let me guess. I'm sure it's either soccer or tennis.
Des: Ah, got you! No, it's neither of those. I love commentating on Formula 1. That's the most exciting spectator sport of the lot.
Miss Lee: Formula 1? I'm not even sure what that is! Something to do with cars, isn't it?
Des: I'd better explain. There seems to be a few puzzled faces! Let me tell you about Formula 1 or F1, as most fans call it. It's an annual single-seater car racing competition. The 'formula' bit refers to the rules the drivers have to follow.