考研英语中常见的衔接词汇可以分为以下几类：
表示转折
although, instead, rather than, but, nevertheless, though, however, on the other hand, otherwise
表示结果和原因
because, since, so, as a result, therefore, hence, thus, otherwise
表举例
for example, to name a few, say, such as, to list but a few, for instance
并列与递进
and, or, also, neither…nor…, either…or…, like, likewise, similarly, equally, in addition, furthermore, what’s more, what’s worse, additionally
表比较和对比
whereas, while, as opposed to, by contrast, by comparison, on the contrary, oppositely, but, yet
表示时间顺序
now, then, before, after, afterwards, meanwhile, subsequently, finally, as a rule, rarely, before, at other times, in most cases, frequently
表示因果关系
because, of, be responsible for, as, since, for, therein, origin, causality, attributed, c
文章及段落起始过渡词语
to begin with, first of all, generally speaking, in general
这些词汇在考研英语中经常出现，掌握它们有助于提高阅读理解和写作水平。建议考生在日常学习中多积累这些词汇，并在实际语境中多加练习。