ormation is distributed in sentences, dealing particularly with the effect of the distribution of [填空1] information and [填空2]information in discourse. The former refers to information that is not new to the reader or the learner. The latter is what is to be transmitted to the reader or hearer.
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According to Prague School, a sentence contains a point of [填空1] and a goal of [填空2]. The former is equally present to the speaker and to the hearer,, the ground on which they meet, called [填空3]. The latter presents the very information that is to be imparted to the learner, called [填空4].
Indeed, linguistic communication is not a static phenomenon but a dynamic one. Communicative [填空1]is meant to measure the amount of information an element carries in a source.
Normally in a sentence the [填空1]carries a lower degree of CD than other elements in a sentence.
With the direct and indirect objects, if they are contextually independent, the one coming later in a sentence carries a [填空1]degree of CD. Usually there is an indefinite article in front of each object.