(二)承
1. 关联词语或重点词汇：
递进：
first, second, third…last; firstly, secondly, thirdly… finally; to begin with, what’s more, in the end; first of all, then, next, moreover, furthermore…, in the first place, in the second place, last but not least
因果：
cause, result in, lead to, produce, bring about, contribute to, based on, because, since, now that, therefore, thus, consequently, owing to, due to, through, because of, on account of, as a result, as a consequence
分类：
arrange in two/three categories, be classified into a number of groups, fall into the following kinds, be put into several groups, consist of
2. 句型及常用表达结构：
因果：
There are several reasons for…
The reason why …can be traced to…
The causes for …are as follows…
Therefore, we can draw/arrive at/reach/make the following conclusion…
There are many causes/reasons for…. Firstly, …, secondly, …, thirdly,…
…also contribute to the reason why…
分类：
…may be classified according to /on the basis of /depending on…
…may be divided into…