This thesis focuses on the preposition frame"从Xèµ·", which is combined by preposition"从"and post-position"èµ·". It is composed of four chapters include the preface.Chapter One summarizes the previous researches of the preposition frames. domestic previous researches of this area are mainly focus on the works of Liu Danqing and Chen Changlai; also summarizes the previous researches of the preposition"从"and the post-position"èµ·".Chapter Two discusses the semantic and syntactic properties of"从Xèµ·", it indicates the start point of space, time and range. Generally, it places before the subjects and the predicates,the syntactic function is as modifier in the sentence, adverbial modifier, parentheses and attribute; investigates and classifies the contents types of"X".Chapter Three compares the differences among"从Xèµ·"and"从X开始","从X以æ¥". In our opinion,"从Xèµ·"and"从X开始"is similar in grammatical meaning, the difference is in whether they are Interchangeable ;the difference between"从Xèµ·"and"从X以æ¥"is in grammatical meaning,"从Xèµ·"expresses four time periods, however"从X以æ¥"just expresses one time period, from the past time till now.In Chapter Four, we studies that in the Preposition Frame"从Xèµ·", when"èµ·"is necessary and when it could be omitted. The authors come to the conclusion that two factors causing it : one is the contents of"X", and the other is other factors .The rules of using"èµ·"is the sequentiality of"X", and it is proportional to the strength of its sequentiality. The other factors that may restrict the omission of"èµ·"include:Series word like"the first time", the phrase"从…到…", length of"X", position of adverbial modifier, or Language Style. |