第二节 听下面5段对话或独白。每段对话或独白后有几个小题，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。听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。
听第6段材料，回答第6~7题。
6. Why is the man so annoyed？
[ A] Because he didn't like listening to radio.
[B] Because his sister made him study very hard.
[ C]Because the noise disturbed him so much.