When the bourgeoi revolution in 1789 turned over the dominant position of the noble class language,it also established the leading position of the bourgeoi romantic language.

Value and suggestions on how to m aster and carry out minority languages in hospitals on national area;

These hypotheses are gronded in the typological variations between the northern and southern Chinese dialects, and are further supported by the data from classical Chinese and minority languages.

After the author introduces the integration of families of languages Xdu, which is the inverse operation of the differential coefficient of families of languages, the replaceablity of families of languages may be generalized to the strong replaceablity.

The Rising of National Consciousness and the Development of English national Language in the Later Middle Ages;

On the relations between national language, culture and metaphor;

The National Language is the basis to form national music style.

This paper first elaborates the basic theories of LPP and then makes a detailed contrast in LPP between China and the United States in terms of national languages,foreign languages and bilingual education.

Studying national cultures through national languages has great significance not only in deepening the recognition of the cultural features of different languages, but also in revealing the unknown phenomena in various national cultural history, reshaping the overall looks of national cultures and understanding the characteristics in the ways of thinking of different nationalities.