题目内容：

听一段对话，回答以下小题。

1.What is the most important thing should Jack pay attention to?

A. The weather.    B. Enough food.    C. A phone.

2.Why does Jack need to take a mobile phone?

A. Because he can call his friends during the walk.

B. Because he can get help from others when something happens.

C. Because he can know the time.