本文的说明原因段可分为如下三个层次进行论证：
①开门见山：首先对“绿色校园”在下文要涉及的内容进行总体概括：The idea of “a green campus” is beyond a green environment.
②正面论证：说明“绿色校园”的第一层含义，也就是我们最熟知的一层含义，即campus construction refers to green environment preservation and protection。然后举例进一步解释此含义，并强调其重要性：which makes campus an ecological and natural resort.在这个过程中考生要注意亮点词汇以及句型的使用。
③反面论证：使用in addition to引出“绿色校园”的第二层含义，即create a civilized atmosphere for the sake of students’ mental health.然后举例进一步解释此含义。如：For example, students will be severely punished in case of cheating in exams and plagiarizing in academic papers.
3.解决方法段 鉴于“绿色校园”的重要性，说明采取措施的必要性，如：To bring “green campus” to its full play, effective measures should be taken.
常见问题：用语过于直白或极端。如：We must…/ We should…等。
使用对策：要站在中庸的立场上，客观地提出建议，可使用一些表示客观立场的词语，如：It is essential that …; Only by the coefforts of the whole society could “green campus” work smoothly.这样使自己的观点表达得既委婉又客观。
Creating A Green Campus
Nowadays the topic of a green campus has been widely debated which has aroused public attention.Undoubtedly, a green campus, the indispensable part for the development of college students, has a profound impact on both individuals and society, for its significance cannot be denied.
The idea of “a green campus” is beyond a green environment.To begin with, campus construction refers to green environment preservation and protection, such as planting more trees and flowers, which makes campus an ecological and natural resort, and advocating green products.For example, students are encouraged to avoid using disposable plastic containers in campus dining hall and recycle wasted batteries and other electrical products properly.In addition to the environmentally friendly practice, we shall make every effort to improve the moral standard and ethical level of university students in order to create a civilized atmosphere for the sake of students’ mental health.For example, students will be severely punished in case of cheating in exams and plagiarizing in academic papers.
To bring “green campus” to its full play, effective measures should be taken.First, based on its education function, campus should bring the theory of “sustainable development” into classrooms, set environmental management rules and conduct environmental education activities.Second, it is essential that law and regulations be worked out and enforced by the government and school authorities.Only by the co-efforts of the whole society could “green campus” work smoothly and bring benefit to people’s well-beings.
(四)修改润色
作文基本完成以后，主要有以下两项任务：
1.检查
检查是否包含考卷提纲列出的所有信息;各段落衔接是否连贯，使用In the first place, Furthermore, On the one hand， For instance， On the other hand等词可以达到这种效果;语法上单词拼写上是否有误，如较长单词indispensable，environmentally friendly，preservation，plagiarizing等，以及短语has a profound impact on，disposable plastic containers，in case of，bring …to its full play, bring benefit to以及最后一段中虚拟语气、倒装句使用是否正确。避免使用“汉语式英语”;检查文章标点符号是否正确。
2.润色
例如：Only by the coefforts of the whole society could “green campus” work smoothly and bring benefit to people’s wellbeings中使用倒装句的结构，凸显考生的语法功底。
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