1.对照(Contrast)

　　whereas, in contrast, on the other hand, instead, however, nevertheless, unlike, even though, on the contrary, while

　　2.增补(Addition)

　　in addition, furthermore, again, also, besides, moreover, what`s more, similarly, next, finally.

　　3.比较(Comparison)

　　in the same way, likewise, similarly, equally, in comparison, just as

　　4.让步(Concession)

　　although, though, after all, in spite of, nevertheless, still, provided, while it is true....

　　5.因果(Cause and effect)

　　because, because of, for, since, due to, owing to, thanks to, as a result(of), accordingly, hence, so, thus

　　6.强调(Emphasis)

　　certainly, above all, indeed, of course, surely, actually, as a matter of fact, chiefly, especially, primarily, in particular, undoubtedly, absolutely, most imprtant

　　7.时间和空间(Time and space)

　　afterward, after, first, later, then, soon, outside, near, beyound, above, below, on the right(left), in the middle, opposite, in front of

　　8.推断(Inference)

　　therefore, as a result(of), consequently, accordingly, so, otherwise

　　9.总结(Conclusion)

　　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

　　10.例证(Exemplification)

　　for example, for instance, that is, namely, such as, in other words, in this case, by way of illustration.