明喻（simile)是比喻的一种，是一两种具有共同特性的事物或现象进行对比，表明本体和喻体的相类关系，两者都在对比中出现。常用比喻词有：
like; not unlike; it was a bit likel can be likened to ; as ; as if ; as though; as it were
as comparable to ; many be compared to ; similar to; akin to ; be analogous to ;
be someting of等。
共分三种类型：描写型（descriptive) 说明型（illustrative)和启发型（illuminative） ......