第19题: [单项选择]What is the main purpose of the program A. To state why eyes are important. B. To describe how eyes function. C. To discuss why there are so many phrases about eyes in English. D. To explain the phrases about eyes. 参考答案:D 答案解析:[听力原文] 18-20 Today’s program is all about eyes. When it comes to relationships, people’s eyes c