8到15个参考文献 我们在文献与写作课时，老师说过····也可以是中文的文献 但是不能太多 最多2-3篇，而且必须有外国文献 也就是外国人写的发表在外国期刊上的文献 可以去ebsco上下载

英语作文复习方法

Proper Review Method
Study is the necessary process that everyone need to experience. And then exam will follow. To obtain a good score, review is inevitable. Almost everyone wants to find the best review method. But there is no best review method, but there is the most suitable way. Different people will find different methods for them to do review. For example, some students should study in group, while some should study alone. When recite things, some need to write it down, some need to speak loudly, and some just need to read it. Different methods just depend on different people. Don’t compare with others; just find the most suitable one for yourself.