听力原文：A: Janet Clark is a nurse in a large London hospital. I want to find out what she thinks of nursing as a career. Janet, why did you become a nurse? B: I think I always wanted to be a nurse. I wanted to work with people and help them. I didn't want to work in an office all day. And I liked the fact that nursing is a very important job. A: What qualities should a nurse have? B: First, nurses must be clever, and also practical. They should be able to think for themselves. But they must be able to work well in a team. But I think the most important quality is to be able to laugh at things, and not get too worried. A: What kind of training have you had? B: Well, my training bad three parts: they were Nursing, The Patient and Illnesses. The course was a mixture of theory and practice. We had one week of theory, followed by eight weeks of practice in a hospital. We mainly learned through practice. And it's hard work doing all that studying! A: Well, now, what don't you like about your job? B: Well, first, it's very hard work. We work 37. 5 hours a week. But we often have to do extra work, because there aren't enough nurses in the hospital The next problem is night duty. Working all night is very tiring and difficult. It's also difficult to change from sleeping at night to sleeping during the day. The third problem, of course, is that you get very low pay for the hard work. Oh, finally, it's very hard during your training because you have to study when you are tired. Why did Janet want to be a nurse?