【正确答案】正确答案：Deixis is originated from a Greek term,and it means pointing by language. Levinson defines deixis as"It concerns the ways in which language encodes or grammaticalizes features of the context of utterance or speech event, and thus also concerns ways in which the interpretation of utterance depends on the analysis of that context of utterance". This definition shows that deixis plays an important role in relating context to language.(2 points)Not every deixis is deictic in any context. For example, although "today" and "tomorrow" are typically considered as time deixises,they are not deictic in the sentence "If yon waste time today,you will repent tomorrow" , because the two deixises here just make a general reference. In other words,they can be applied to every situation rather than context dependent.(3 points)

【答案解析】解析：指示词(deictic)具有指示作用，用于指示人物、时间或者地点。指示词以说话者为中心，让话语跟某人物、时间或地点发生直接联系，其指向是相对于使用这些词时的语境而言的，其含义随语境的变化而变化。需要注意的是，并不是所有表示人称、时间、地点的词都采用了指示用法。指示词的非指示用法分为照应用法和非照应用法两种，照应用法指一个词跟前面出现的别的词所指的是同一个对象，非照应用法指一个词的所指是普遍适用的泛指，它不随语境而转移，能够适用于任何情况。