托福写作很看重考生的逻辑思维能力，而在作文里体现这种能力的一个细节就是句子和段落之间承上启下词汇的合理运用。很多同学忽视了这类词汇，写出来的文章上下文之间逻辑关系模糊不清，可能会因此扣分。下面小编就来汇总分享托福写作承上启下的10类常用逻辑词汇。

　　1.增补(Addition)

　　in addition, furthermore, again, also, besides, moreover, what`s more, similarly, next, finally.

　　2.比较(Comparison)

　　in the same way, likewise, similarly, equally, in comparison, just as

　　3.对照(contrast)

　　whereas, in contrast, on the other hand, instead, however, nevertheless, unlike, even though, on the contrary, while

　　4.因果(Cause and effect)

　　because, because of, for, since, due to, owing to, thanks to, as a result(of), accordingly, hence, so, thus

　　5.强调(Emphasis)

　　certainly, above all, indeed, of course, surely, actually, as a matter of fact, chiefly, especially, primarily, in particular, undoubtedly, absolutely, most imprtant

　　6.让步(Concession)

　　although, though, after all, in spite of, nevertheless, still, provided, while it is true....

　　7.例证(Exemplification)

　　for example, for instance, that is, namely, such as, in other words, in this case, by way of illustration.

　　8.总结(Conclusion)

　　to sum up, to conclude, in a word, in short, in brief, all in all, in all, to put it in a nutshell, in summary

　　9.推断(Inference)

　　therefore, as a result(of), consequently, accordingly, so, otherwise

　　10.时间和空间(Time and space)

　　afterward, after, first, later, then, soon, outside, near, beyound, above, below, on the right(left), in the middle, opposite, in front of

　　以上这些就是托福写作中考生经常会需要用到的10类承接逻辑关系词，希望大家能够掌握这些词汇的正确用法，让托福作文的逻辑更通顺。