We should start from materials when we study the history of etymology and appraise the position objectively of the study of ancient people.

The achievements of the study of Chinese etymology in the history of etymology in the period of Wei, Jin, the south and north dynasties, Sui, Tang and the five dynasties had not been paid much attention.

Studying the history of etymology must roundly research the historical material, so we can get all-around and correct conclusion.

The influence and significance of Mengchuang s ci-poetry in the ci-poetic history could be mind- ed in three aspects as follows:First,Mengchuang s ci-poetry was renowned in its strict rhythm,which,as a reaction to the customary loose ci-poetic rhythm,was worshipped in the Late Song and the Middle and Late Qing Dynasties.

Based on the chemistry historical data in Tiangong Kaiwu , this paper gives a systematic review of chemical properties, chemical reactions and important chemical technology.

In the study of Chinese literature across the world, the researchers have been nagged all along by its designation, collection of historical data and poetics, while the new immigrant literature has become a new hot spot of study in recent years.