1、条件关系
as long as, even if, even though, if, if not, on condition that, otherwise, provided, supposing, unless
2、空间关系
above, across, around, before, behind, below, beneath, beside, close at hand, close to, down, far ahead, far behind, farther, here, in front of, in the distance, in the middle of, nearby, near to, next to, on, on the left/right, opposite to, over, there, to the left/right, under, up
3、举例说明
a case in point, as an illustration, for example, for instance, for one thing for another, likewise, namely, on one hand. . . on the other hand, similarly, such as, such. . . as, take. . . for example, that is, to give another example, to illustrate
4、解释或定义
in other words, in simple terms, namely, that is, that is to say
5、时间关系
above all, after, and, after a while, afterward, also, as soon as, at first, at last, before, besides, eventually, finally, firstly, first of all, further, furthermore, immediately, in addition, in the end, in the first place, last, later, meanwhile, moreover, next, now, presently, recently, secondly, shortly, since then, soon, then, thirdly, to begin with, to start with, whats more
6、递进关系
provided, supposing, unless, additionally, again, and, also, another, besides, further, furthermore, in addition (to), likewise, more, moreover, not only. . . but also, too, what s more
