考研英语文章描述通常遵循以下结构和技巧：
开头描述
引入现象：首先，描述图画中的主要情景或现象。可以使用一两句话简洁明了地概括出图画所展示的内容。
引入主题：接着，通过一两句话引入文章要讨论的社会现象或问题，作为全文的中心主旨句。
主体段落
分论点一：从不同的角度或方面分析现象，提供支持中心主旨句的论据。可以使用具体的例子、数据或事实来加强论证。
分论点二：继续从不同角度分析现象，进一步论证中心主旨句的正确性。同样，可以使用具体的例子、数据或事实来支持论点。
分论点三：总结前两个分论点，强调现象的普遍性或其对社会的影响。可以提出一些建议或解决措施。
结尾段落
总结全文：在结尾段落中，总结全文的主要观点，并重申中心主旨句。可以提出一些建议或解决措施，以应对所讨论的现象。
示例描述
假设我们要描述一幅关于二手烟危害的图画，可以按照以下方式撰写：
开头描述
"The cartoon is simple but thought-provoking. As is vividly shown in the picture, there are two passengers sitting in a bus. One of them is a male, who is sitting cross-legged and smoking. The whole bus is filled with the black smoke. While the other one is a female, who is sitting in front of the man and covering her nose with a tissue to prevent the harm of the second-hand smoke."
主体段落
分论点一："Second-hand smoke poses a significant threat to our health. It contains various harmful chemicals that can cause respiratory diseases and even lung cancer."
分论点二："Moreover, second-hand smoke is not just a health issue； it also affects the quality of life in public places. Smokers and non-smokers alike suffer from the irritating and unhealthy air."
分论点三："To address this problem, it is crucial to raise awareness about the dangers of second-hand smoke and enforce smoking bans in public spaces."
结尾段落
"In conclusion, the cartoon vividly illustrates the pervasive nature of second-hand smoke and its harmful effects on individuals and society. To protect our health and well-being, we must take immediate measures to reduce exposure to second-hand smoke."
通过以上结构和技巧，可以有效地撰写出清晰、连贯且具有说服力的考研英语文章描述。