In the light of Hoey\'s theory of lexical repetition,investigation into the impact of magnitude of bonds,repetitions of lexical items and grammatical items in the compositions of CET-6 held in Dec 2007 on their quality is conducted.

Only under the knowledge database of sense-words, this method formulates the sense-words and polysemous words in vector space, and based on k-NN (k=1) it calculates the similarity between them to disambiguate polysemous words.

The Research of Chinese Textbooks in Elementary School both about Glossary Constitutes and Common Words Status that by Chenbo (2004) puts forward the concept of signifier item, the intension and extension of signifier item are defined ulteriorly from the aspects of both theory and application in this article.

This paper makes a tentative research into shall + notional verb type of sentences in the Constitution of the United States, mainly from the perspective of Dowty s event-based thematic Proto-roles with the help of WordSmith to verify the frequency of the words and phrases introduced by shall.

Generally speaking,if there is a notional verb at the end of a ZUO phrase,the ZUO should be ZUO(DO);if ZUO means "be" or "act as" in a ZUO phrase,the ZUO should be ZUO(BE).

In the natural and fluent English,the zero stress is more common than the other two,but the zero stress of the content words is often overlooked.