句子结构在英语知识运用中主要体现在句子间的逻辑关系上，考生需要熟知各种常见的逻辑关系词。这些逻辑关系主要体现在一些连词、副词以及某些介词词组上。

具体可以分为以下几类：

表示转折/让步关系：but, however, nevertheless, whereas, although, despite, in spite of, still

表示比较或对比关系：similarly, in the same way, likewise, whereas, in contrast to, rather than

表示因果关系：because, since, now that, on account of, due to, on the ground of, accordingly, consequently, therefore, thus, hence

表示并列关系：and, or

表示举例与例证关系：for example, for instance, specially, such as, as follows

表示强调关系：in fact, in particular, particularly, above all, undoubtedly, certainly

表示顺承关系：in addition, furthermore, besides, likewise

此外，逻辑关系不仅可以成为直接的考查对象，而且还可以利用这些逻辑关系寻找其他题目的解题线索。