如：I love my dog, but I hate it when he disturbs my work.
Therefore, he should announce a rule banning students from using mobile phones.
表转折关系的连接词有：although, at the same time, despite, despite that, even so, even though, for all that, however, in contrast, in spite of, instead, likewise, nevertheless, on the contrary, on the other hand, otherwise, though, but, yet等。
表示强调关系的连接词有：above all, certainly, especially, indeed, in fact, of course, particularly等。
表示总结关系的连接词有：all in all, altogether, finally, in brief, in conclusion, in other words, in particular, in short, in simple terms, in summary, on the whole, therefore, to put it differently, to summarize等。
表示地点的连接词有：above, beyond, here, in the distance, nearly, opposite, over there, to the left, to the right, under等。
表示次序的连接词有：after a while, afterwards, also, as long as, at last, at length, at that time, before, besides, earlier, eventually, finally, formerly, further, furthermore, in addition, in the first place, in the past, last, lately, meanwhile, moreover, next, now, presently, previously, prior to, second, shortly, simultaneously, subsequently, then, thereafter, until, when等。
如这句话：If we hadn’t stopped for lunch, we would be late。If是连接词，后跟的就是事件发生的条件。
条件关系最重要的连接词是if，此外还有after, as a consequence of, as a result of, as long as, as soon as, assuming, before, even if, if only, once, only if, on the condition that, provided, providing, unless, until, when, whether等。