i. 听力理解（共三节，满分22.5分）
第一节（共4小题；每小题1.5分，满分6分）
听下面4段对话，每段对话后有一道小题，从题中所给的a、b、c三个选项中选出最佳选项。每段对话你将听两遍。
1. where does the conversation most probably take place?
a. in a library.b. in a bookstore.c. in a study.
2. what is the final price of each necklace?
a. $ 40b. $50c. $60
3. what is the man doing?
a. shopping at the supermarket.
b. checking in at the hotel.
c. asking the way.
4. why couldn’t the man sleep well according to
