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。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. How much does the man need to pay for the electricity bill?
A. $40. B. $80. C. $120.
2. Why does the man talk to the woman?
A. To extend an invitation. B. To express thanks. C. To ask for help.
3. What's the probable relationship between the speakers?
A. Doctor and patient. B. Co-workers. C. Teacher and student.
4. What does the man want to do?
A. Ride on the sky wheel.
B. Go shopping with his mom.
C. Set up a company with his friends.
5. What does the man probably mean?
A. His schoolbag is too old.
B. The woman should buy pants for him.
C. He won't put the keys in his pants pocket.