One possible version :

     As can be seen from the diagram above , nowadays middle school students spend most of their pocket

money on snacks , clothes , things for entertainment and social communications . However , they seldom

buy learning resoursces . Furthermore , some of them are free to buy whatever they like without considering

the income of their family and their needs.

     In my opinion , it's wrong of us students to consume blindly ,such as following the fashion , pursuing

famous brands of clothes . As we know , once seeking material comforts , we will lose the motivation of

learning . Therefore , we should spend our pocket money on what we really need . Also ,we should acquire

a scientific outlook of consumption and focus on study . What's more , it's essential for us to develop a good

habit of saving money .

答案不唯一