【答案解析】[听力原文]

{{U}}The appropriate use of eye contact varies from one culture to another{{/U}}. In some cultures, women are expected to lower their eyes in most communication settings. In others, younger people must keep their eyes {{U}}lowered{{/U}} when addressing {{U}}older{{/U}} people. {{U}}However{{/U}}, in the United States, {{U}}whether{{/U}} you are addressing an individual, a small group of people, or a larger audience, you are {{U}}expected to look at them{{/U}}. You do not have to stare constantly and continuously. In fact, it is appropriate when speaking to one person to look away {{U}}occasionally{{/U}}. In a small group you should look around at the different members of the group. And when addressing a larger audience, you should try to make eye contact with different people around the room. {{U}}It is important to{{/U}} look at the entire audience, so you will probably have to turn your head or your body in order to make proper eye contact with all sides of audience. If you look at the floor or the {{U}}ceiling{{/U}}, you will give the impression that you are not interested in your audience.