各位同学在第一次撰写英文论文时，会遇到语言差异的障碍，尤其是一些关键词的用法。我参照了一些网站和帖子，结合自己写作时经常用到，或者经常见到的词语，供大家参考。
这个视频也总结了一些，也可以参照。
（PS：跟中文一样，一开始也需要模仿英文的范文语句，）
1. 递进关系
in addition另外, furthermore此外, again, also, besides, moreover此外 , similarly, finally最后
2. 比较关系
in the same way, likewise同样地, similarly, equally, in comparison比较起来, just as同样地
3. 对照关系
whereas然而, in contrast与此相反, on the other hand, instead同样, however然而, nevertheless然而, unlike, even though即使, on the contrary, while
4. 因果关系
because, because of, for, since, due to, owing to, thanks to, as a result(of), accordingly, hence, so, thus
5. 强调
certainly, above all, indeed, of course, surely, actually, as a matter of fact, chiefly, especially, primarily, in particular, undoubtedly, absolutely, most imprtant
6. 举例
for example, for instance, that is, namely, such as, in other words, in this case, by way of illustration.
7. 总结
to sum up, to conclude, in a word, in short, in brief, all in all, in all, to put it in a nutshell, in summary
8. 推断
therefore, as a result(of), consequently, accordingly, so, otherwise
9. 动词
investigate, discuss, analyze, explore, show, conduct, propose, affect, introduce, define, predict, focus on