第一节 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。 What’s the time now

A．students today can not grow faster than science
B．students today should know they are servants of knowledge
C．a student today knows he can become familiar with only a small comer of knowledge
D．a student today is facing a new situation

A．the sum of knowledge is getting larger and larger
B．they want to get ahead of the old ones
C．they want to master more knowledge than their teachers
D．what their masters explain is too difficult for them