首先，我们来了解2012年四级英语作文真题的具体内容。这道题目要求考生根据所给图表和数据，写一篇关于大学生消费习惯的文章。以下是对这道题目的详细分析：
一、图表内容
2012年四级英语作文真题中的图表主要展示了我国大学生在2010年、2011年和2012年的月均消费情况。具体包括生活费、学费、书籍费、娱乐费和其他费用等五个方面。从图表中可以看出，生活费是大学生月均消费的主要部分，其次是学费。
二、写作要点
1. 开篇引入：可以从大学生消费习惯的变化、家庭经济状况等因素入手，引出文章主题。
2. 分析原因：从以下几个方面分析大学生消费习惯的变化原因：
a. 家庭经济状况：随着我国经济的发展，家庭收入水平提高，大学生生活费也随之增加。
b. 社会观念：现代社会对大学生的消费观念产生了一定的影响，使他们在消费上更加开放和个性化。
c. 大学生自身特点：大学生正处于青春期，追求时尚、攀比心理较强，导致消费水平不断提高。
3. 讨论影响：大学生消费习惯的变化对我国社会产生了一定的影响，具体表现在以下几个方面：
a. 家庭负担：大学生消费水平提高，家庭经济压力增大。
b. 消费观念：大学生消费观念的变化可能对他们的未来生活产生负面影响。
c. 社会风气：过度消费可能引发社会风气浮躁，不利于构建和谐社会。
4. 提出建议：针对大学生消费习惯的变化，提出以下建议：
a. 家庭教育：家长应关注孩子的消费观念，培养他们正确的消费观念。
b. 学校教育：学校应加强学生消费观念的教育，引导学生树立正确的消费观念。
c. 社会引导：媒体和社会各界应关注大学生消费问题，倡导合理消费。
5. 结尾总结：总结全文，强调关注大学生消费习惯的变化，引导他们树立正确的消费观念。
三、写作技巧
1. 语言表达：注意语言的准确性和流畅性，避免语法错误和词汇使用不当。
2. 结构安排：合理安排文章结构，使文章层次分明，条理清晰。
3. 论证观点：围绕主题，充分论证观点，使文章具有说服力。
四、范文示例
With the rapid development of our society, the consumption habits of college students have undergone great changes. According to the chart, the monthly consumption of college students in China has increased significantly over the past three years.
The reasons for this change can be attributed to several factors. Firstly, with the improvement of family economic conditions, students now have more money to spend on their daily lives. Secondly, the influence of social ideas has led to a more open and personalized consumption concept among college students. Lastly, college students themselves have a strong desire to keep up with the latest trends and compete with their peers, which has led to a higher level of consumption.
The changes in college students' consumption habits have had certain impacts on our society. On the one hand, it has increased the financial burden on families. On the other hand, it may have a negative impact on their future lives. Moreover, excessive consumption may lead to a浮躁 social atmosphere, which is not conducive to building a harmonious society.
In order to address these issues, we should take the following measures. Firstly, parents should pay attention to their children's consumption concepts and cultivate a correct consumption philosophy. Secondly, colleges and universities should strengthen the education of students' consumption concepts, guiding them to establish a correct consumption philosophy. Lastly, the media and the whole society should pay attention to the consumption issues of college students and advocate reasonable consumption.
In conclusion, we should pay attention to the changes in college students' consumption habits and guide them to establish a correct consumption philosophy, which is conducive to their personal development and the construction of a harmonious society.
