【正确答案】 C

【答案解析】[听力原文]
   W: Good morning, Mr. Smith. May I join you on the walking exercise? I thought it is a good idea to walk around to get some fresh air early in the morning.
   M: Do come along. It is nice to have some company for good exercise. My wife comes along with me sometimes but she is quite irregular. We have a large family and she has to prepare breakfast for the children and for me.
   W: Do you take walking exercise every morning?
   M: Yes. I feel much better after a good walk in the morning. I have to sit at a desk the whole day. Some exercise before going to work helps. It clears my head and puts vigor into my body.
   W: Some people prefer to take an evening walk after dinner.
   M: I get fairly late coming back from office. Then I have my little son with his lessons in the evenings.
   W: These days, fitness walking is getting very popular. Nearly all men come out for fitness walking between five and six in the morning.
   M: I notice that they are the middle-aged and older people, who are out walking in the morning. They understand the importance of morning exercise.
   W: Yes, it seems like that. The young white collars go to parties after work so often that they can hardly get up early in the morning. That is the reason for their absence from fitness walking.
   M: Also perhaps they are in the prime of life and do not feel the strain like us older men.
   W: You said it.
   M: Well, today's walking exercise was very refreshing and informative. I must go home now and get ready for work. See you tomorrow again for morning exercise.
   Q: What do we learn about the man's wife?
女：早上好，史密斯先生。我能和你一起步行锻炼吗?我觉得一大早出来到处走走，呼吸一下新鲜空气是个很不错的主意。
   男：一起来吧。对好的锻炼来说，有人陪伴很不错。我妻子有时会陪我一起晨练，但她锻炼的时间不是很规律。我们有一大家子人，她得为我和孩子们准备早餐。
   女：你每天早上都做步行锻炼吗?
   男：是的。我早上走一段路后就会舒服很多。我一整天都必须坐在桌子旁。工作前进行一些锻炼很有好处。能让我保持头脑清醒，充满活力。
   女：一些人更喜欢晚上饭后进行走路锻炼。
   男：我下班回家很晚。然后我晚上还要辅导小儿子的功课。
   女：最近步行健身变得很流行。几乎所有人都会在早上五六点出来步行健身。
   男：我注意到早上出来步行锻炼的都是中老年人。他们明白晨练的重要性。
   女：是啊，看起来是那样。年轻的白领们下班后经常去参加聚会，因此早上就很难早起。那就是他们不能进行步行锻炼的原因。
   男：还可能他们风华正茂，还感受不到像我们年龄更大一些人的身体压力。
   女：你说得对。
   男：嗯，今天的步行锻炼令我非常神清气爽，又让我长了见识。我现在得回家准备去上班了。明天晨练时再见。
   ①四项均以she为主语。
   ②两项涉及时间短语in the morning。
   结论：本题很可能与对话中所描述的某位女士的活动有关，尤其是早上那段时间。
   对话中男士对女士提到了自己的妻子，说因为他们家里人多，妻子要为他和孩子们准备早餐，没有时间来晨练，可见男士的妻子早上很忙，故本题应选C。