干货|SCI 论文写作的万能句型

描述实验过程：其他描绘实验过程的句型


　　1. For the purpose of height measurement, subjects were asked to stand .....
　　2. For the purpose of analysis, 2 segments were extracted from each ......
　　3. For the estimation of protein concentration, 100 μL of protein sample was mixed with ......

文献简介


　　1. Recently investigators have examined the effects of X on Y.
　　2. In the past two decades a number of researchers have sought to determine ......
　　3. Previous studies have reported ......
　　4. A considerable amount of literature has been published on X. These studies ......
　　5. Smith (1984: 217) shows how, in the past, research into X was mainly concerned with .......

强调研究领域存在的问题


　　1. However, these rapid changes are having a serious effect ......
　　2. However, a major problem with this kind of application is ......
　　3. Lack of X has existed as a health problem for many years.Despite its safety and efficacy, X suffers from several major drawbacks:
　　4. However, research has consistently shown that first year students have not attained an adequate understanding of ......
　　5. There is increasing concern that some Xs are being disadvantaged ......

强调研究领域存在的争议


　 1. To date there has been little agreement on what ......
　 2. More recently, literature has emerged that offers contradictory findings about .....
　　3. One observer has already drawn attention to the paradox in ......
　　4. In many Xs a debate is taking place between Ys and Zs concerning ......
　　5. The controversy about scientific evidence for X has raged unabated for over a century.

强调研究领域的知识差距


　　1. So far, however, there has been little discussion about ......
　　2. Little is known about X and it is not clear what factors .......
　　3. However, far too little attention has been paid to ......
　　4. In addition, no research has been found that surveyed .......
　　5. So far this method has only been applied to ......

强调前人研究的不足之处


　　1. Most studies in the field of X have only focussed on ......
　　2. Most studies in X have only been carried out in a small number of areas.
　　3. The generali****lity of much published research on this issue is problematic.
　　4. The experimental data are rather controversial, and there is no general agreement about ......
　　5. Such expositions are unsatisfactory because they .....