2016年大学英语四级听力全题型老师解析：长对话

例题：
　　2009年12月四级考试第1篇长对话（部分节选）：
　　Questions 19 to 22 are based on the conversation you have just heard.
　　19. A) He prefers the smaller evening classes C) He has to work during the day.
　　B) He has signed up for a day course. D) He finds the evening course cheaper.
　　20. A) Learn a computer language. C) Buy some computer software.
　　B) Learn data processing. D) Buy a few coursebooks.
　　答案：C B
　　听力原文（部分节选）：
　　Woman: Hello, Parkson College. May I help you?
　　Man: Yes. I’m looking for information on courses in computer programming. I would need it for the fourth semester.
　　W: Do you want a day or evening course?
　　M: Well, it would have to be an evening course since I work during the day（19题答案点在此处直接被读出）.
　　W: Aha. Have you taken any courses in data processing?
　　M: No.
　　W: Oh. Well, data processing is a course you have to take（20题答案点在此处被读到） before you can take computer programming….
　　19. Why does the man choose to take an evening course?
　　20. What does the man have to do before taking the course of computer programming?