逻辑关系归纳起来主要有以下几类：
1.并列关系
and, and also, or, neither… nor…, either …or…, not only…but also…, similarly, likewise, in the same way.
2.递进关系
moreover, what is more, furthermore, then, besides, in addition, additionally.
3.因果关系
because, for, since, as, hence, thus, so, consequently.
4.转折关系
but, however, on the contrary, by contrast, unfortunately, while, whereas.
5.让步关系
although, though, even though, even if, nevertheless, no matter+疑问词, despite, as, while.
6.条件关系
if, so long as, as long as, only if, if only, provided.
7.解说关系
namely, that is to say, in other words, to be exact, to put it mildly.