This paper divides 21 discourse time connecting component into three categories .First,the paper researches the usage and the rules of the covert and overt form of time connecting component.The usage includes using alone,cooperating with other words and reuse.The initial time connecting component tends to be used with other time connecting component;the previous time connecting component tends to be used alone; the subsequent time connecting component tends to be used with other time connecting component;the simultaneous time connecting component tends to be used with the time adverbs "you/hai/ye";the ending time connecting component tends to be used alone.The rules of the covert and overt form of time connecting component is mainly affected by the semantic context,also it’s related with the composition of time which cooperating with.The simultaneous time connecting component has the biggest tendency for hiding or appearing;the ending time connecting component has the biggest tendency for must appear.On the basis of usage and the rules of the covert and overt form of time connecting component,this paper investigates the acquisition situation of Korean students of the initial time connecting component.According to the usage of Korean students ,we get the difficulty level of Korean students:(1) The earlier acquired: cooperating with the subsequent time connecting component and using alone.(2)The relatively late acquired: cooperating with the time adverbs"you/hai/zai/ye"and "bian/jiu/cai".(3)The latest acquired:cooperating with previous time connecting component.Second,this paper investigates the acquisition situation of Korean students of the previous time connecting component.According to the usage of Korean students,we get the difficulty level of Korean students acquisition: 1) The earlier acquired:using alone and cooperating with the words which means "present".(2)The relatively late acquired:cooperating with other time connecting component and cooperating with the words which means "but".(3)The latest acquired:cooperating with time adverbs "jiu/hai/ye".Third,this paper investigates the acquisition situation of Korean students of the subsequent time connecting component.According to the usage of Korean students,we get the difficulty level of Korean students acquisition: 1) The earlier acquired:using alone and cooperating with other time connecting component .(2)The relatively late acquired:cooperating with the subsequent time connecting component,cooperating with the time adverbs "you/hai/zai/ye"and"bian/jiu/cai".(3)The latest acquired:cooperating with the modal words"ne/ba/a"and reuse.Fourth,this paper investigates the acquisition situation of Korean students of the simultaneous time connecting component.According to the usage of Korean students,we get the difficulty level of Korean students acquisition:(1) The earlier acquired:using alone and cooperating with the time adverbs"you/hai/ye".(2)The relatively late acquired:cooperating with other time connecting component.(3)The latest acquired:cooperating with the time adverbs "jiu/cai".Fifth,this paper investigates the acquisition situation of Korean students of the ending time connecting component.According to the usage of Korean students ,we get the difficulty level of Korean students acquisition:(1) The earlier acquired:using alone and cooperating with other time connecting component.2)The relatively late acquired: cooperating with the time adverbs"you/hai/ye".(3)The latest acquired:cooperating with the words which means"jingguo"and"but". |