The four bases of an essay

       1.Unity-Seeing the whole as the sum of its parts

       2.Support-The importance of evidence in writing

        -对应文章中的body部分是否有理有据

       3.Coherence-The fundamentals of organization and transition/

一致；连续性

        4.Sentence skills-The craft of writing; its elements

Essay structure

1.Introduction

     Opening remarks to catch readers’ interest·

      Thesis statement

2.Body

    Topic sentence + specificevidence

3.Conclusion

    Summary{restate}

    General closing remarks

以上是最基本的文章结构：开头点出主题，各段中心句以及论证，和最后的强调主题。