I.听力：（每题1分，共20分）
第一节：请听下面5段对话；每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有l0秒钟的时间来回答有关小题和阅读下一个小题。每段对话仅读一遍。
1. What’s the relationship between the two speakers?
A. Mother and son. B. Husband and wife. C. Friends.
2. Why won’t the woman eat any more?
A. She’s had enough. B. She’s not feeling well. C. She’s losing weight.
