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. What are the speakers most probably doing?
A. Waiting for a bus. B. Talking about their schedule. C. Changing their plans.
2. What do we learn from the conversation?
A. It will be a big storm tomorrow.
B. The weatherman is usually exact in his forecast.
C. The weatherman is usually not exact in his forecast.
3. Where does the conversation most probably take place?
A. In a cotton field. B. At a railway station. C. On a train.
