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同样重要的是要认识到:根据这个理论,语境不能归结为话语的并列篇章,而是储存于记忆中的一套假设。也就是说,连贯定义为语言单位(即话、篇章的片断)之间的关系,而相关性则是命题之间的关系。这不是说上一段话语不可能使听话人得到在理解话的过程中所使用的语境假设。实际上正象我们将看到的,这恰恰是确定连贯篇章特点的成分。然而,这种语境假设,也可以通过观察非交际事件获得。例如(14)这句话在断电事件中和在给圣诞树张灯结彩的情况下就有非常不同的含义:
It is also important to recognize that according to this theory, context can not be attributed to the side-by-side discourse, but a set of assumptions stored in memory. That is to say, coherence is defined as the relationship between the linguistic units (ie words and passages), while the relativity is the relation between propositions. This is not to say that the last discourse would not have allowed the hearer to use the contextual assumptions used in the process of comprehension. In fact, as we shall see, this is precisely the component that determines the characteristics of a coherent chapter. However, this contextual hypothesis can also be obtained by observing non-communicative events. For example, the phrase (14) has a very different meaning in the event of a power failure and in the case of a Christmas tree,