一般把连接词与连接语分为以下三类：  

1.表明事件发生的时间顺序：  

then, first, at once, next, after that, previously, while, when, the following day, etc.  

2.表明文章的组织结构:   来源：www.examda.com

1)Listing:  

firstly, in the first place, secondly, thirdly, my next point is, last/finally, etc.  

2)Illustrating:  

for example/ for instance, to illustrate, an example/ instance of this is, let’s take….., take…. for example, etc.  

3)Re-stating:  

in other words, that is to say, to put it another way, let me put it this way, or rather, namely, etc.  

4)Referring:   来源：www.examda.com

in this respect, in that connection, as we said, apart from this, etc.  

5)Resuming:  

to resume, to return to the previous point, getting back to the argument, etc.  

6)Summarizing:   来源：www.examda.com

to sum up, in short, it amounts to this, what I have been saying is this, etc.  

7)Emphasizing:  

it is worth noting, I would like to direct your attention to, let us consider, we must now turn to, I shall begin by, etc.