怎样运用比较法和对比法

段落发展也可以通过比较和对比来加以阐述。 比较是把两个事物或一个事物的两个方面 的相似点进行对照，对比则是阐述其不同之处。例文如下：

There are striking similarities between two of the most popular U.S. presidents, Abraham Lincoln and John F. Kennedy. Both men had their elections legally challenged. Lincoln and Kennedy are both remembered for their sense of humor, as well as for their interest in civil rights. Lincoln’ secretary was Mrs Kennedy; Kennedy’s secretary was Mrs Lindoln. Neither man took the advice of his secretary not to make a public appearance on the day on which he was assassinated. Lincoln and Kennedy were both killed on Friday in presence of their wives. And finally, the same caisson carried the bodies of both men in their funeral processions.

比较主要是通过一些关联两个事物的词语把他们共同的、 相似的方面列出来。 这些词起 到衔接的作用，常用的有：

equally, likewise, also, both, all, as well as, in the same way, similarly, in a similar manner, in a like manner 等。