第一部分 听力(共两节，满分30分)
第一节(共5小题；每小题1.5分，满分7.5分)
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10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。
1．Who is the man possibly talking to?
A. A teacher. B. A doctor.
C. His mother.
2．What do we know about Sam?
A. He will leave New York.
B. His sister will leave for Los Angeles.
C. His sister will leave for New York.
