说明文以传授知识为目的,主要运用说明的表达方式,对客观事物或事理作如实的介绍,简要的解说。说明文没有记叙文那样扣人心弦的情节,栩栩如生的人物形象;也没有散文那样的优美意境,如诗如歌的语言,然而很多的文章大家写的说明文都是寓知于乐,让读者在兴趣盎然中接受知识。他们到底使用了什么方法?一、比喻说明比喻说明能把抽象的事理或者复杂的事物说得浅显易懂,确切具体,简洁生动。如《中国石拱桥》为了形象地说明石拱桥的形 Explanatory text to impart knowledge for the purpose of the main use of statements of expression, objective facts or things to make a true introduction, a brief explanation. There are no narrative narratives as vivid plot, lifelike characters; nor the prose as beautiful mood, poetic language, but many articles written in the text are all known to the music, so that readers accept in full swing know how. In the end they use what method? First, metaphor shows metaphor that abstract things or complicated things can be easy to understand, exact, concise and vivid. Such as “China Stone Arch” in order to vividly illustrate the shape of the stone arch