To know English Progressive Aspect clearly, this paper makes an analysis of the common grammatical features and differences of Progressive Aspect both in Chinese and English through comparison and contrast.

Common features of medium-and short-term precursory anomalies before strong earthquakes;

School-running characteristics and common features of world first-class universities;

These are similarities which are caused by the common features shared by these prepositions in the constructions of “gen/xiang/dui +N+V/VP”.

Common characteristics and mechanism of regional deform-ation anomaly in medium-term phase of strong earthquakes Taking the northeastern Qinghai-Xizang block as example;

The common characteristics of ecotourism and traditional tourism projects are as follows: both are integrative,immaterial,unstorable,unshiftable,easily fluctuating,and easily imitable.

The paper puts forward four methods to understand the word meaning correctly To understand the word meaning by word matching, context clues, grammatical characteristics and extended meaning.

"Men" has special grammatical characteristics in constituted relations and syntax.

The author carefully studied those adverbs by examining their grammatical characteristics, semantic basis, context, the similarities and differences with Mandarin.

Semantic and Grammatical Features of chángchang and wǎngwang;

The grammatical features of relative clause cover the structure and position of the relative clause,and the modified components of the relative clause.

According to their positions (preposition/postposition)in the sentence,this dissertation explores the typology and grammatical features of orientated adj -noun phrases.