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。 Who is Mr. White

A．This program makes a change in your lifestyle.
B．This program can stop you from feeling hungry all the time.
C．This program allows you 1，700 to 2,000 calories for each meal.
D．The program can give you more energy and improve your health.

A．To keep healthy first and to lose weight second.
B．To lose weight as much as possible.
C．To lose weight at the cost of the health.
D．To lose weight first and to keep healthy second.