1、并列关系

and, furthermore, more than that, also, likewise, moreover,inaddition, what is more, for instance, for example

2、转折关系

although, however, on the contrary, but, in spiteof,nevertheless, yet, otherwise, despite

3、顺序关系

first, second, third, and so on, then, after, before, next

4、因果关系

as a result, for, thus, because, for this reason, so,therefore,as, since,consequently, on account of

5、归纳关系

as a result, finally, therefore, accordingly, in short,thus,consequently, in conclusion, so, in brief, in a word