Abstract:Our life is filled with different cultures. As part of human language, idioms are the deposit and essence of culture, and different idioms reflect different national forms. Idioms, which are closely related to our life and seen everywhere, not only enrich our culture and knowledge, but also reflect the differences of national forms. The phenomena they reflect are multi-level and multiplex when English culture is constantly blending with our culture, especially, with culture of the U.K. and the U.S.A.; their uses are even entrusted with different feelings and cultural symbols. In English and Chinese, many idioms are largely produced one after another and different from each other, we not only understand idiomaticities, the meaning of idioms and of national form, but also focus our eyes on the national forms that they reflect. Due to the differences between Western cultural background and our cultural background, between the ways of conveying languages and so on, the national forms that they reflect are related to the cultures of English and Chinese and produce some similarities and more differences. This thesis is to make a contrastive study of the national forms of idioms between English and Chinese.

Key words: idioms; national forms; English culture; Chinese culture; convention culture

摘要:生活充满了文化色彩。作为人类语言的一部分, 习语一直是文化的积淀和精华，不同的习语反映不同的民族形式。习语与我们的生活密切相关，既丰富了我们的文化知识，亦反映了民族形式的不同,它无处不在。在汉语文化和英语文化，特别是和英美文化的不断升温交融之时，其所反映出来的现象是多层次和多元化的，习语的使用更是被赋予了不同的情感和文化象征。在中文和英文之中，习语层出不穷，各具特色，我们不但要了解习语和民族形式各自的含义，习语的特征，而且须注意习语所映射出来的民族形式。由于各自的文化背景和语言表达方式等等不尽相同，因此习语映射的民族形式不但与中英文化息息相关，而且存在一定的相同点，但存在更多的是巨大差异。本篇论文对比探究英汉习语的民族形式。

关键词：习语； 民族形式； 英语文化； 汉语文化；习俗文化