【正确答案】正确答案：The phenomenon in "a" shows the feature of duality. Duality means the property of having two levels of structures, such that units of the primary level are composed of elements of the secondary level and each of the two levels has its own principles of organization. The structure "cir" can produce different words when different morphemes are added to it.(5 points) The phenomenon in "b" shows the feature of arbitrariness. "Arbitrariness" is a core feature of language, which means that there is no logical connection between meanings and sounds. The phenomenon in "b" tells us that different languages have different ways to express the same meaning, which proves that there is no logical connection between sounds and meanings.(5 points) The phenomenon in "c" shows the feature of displacement. By displacement it means that language can be used to refer to things which are present or not present, real or imagined matters in the past, present, or future, or in far-away places. The phenomenon in "c" shows that though the dream is abstract and Disney is far away from the scene, human beings can use their language to describe both of them.(5 points) The phenomenon in "d" shows the feature of creativity. By creativity we mean language is resourceful because of its duality and its recursiveness. The word "henpit" in the sentence shows that people can create new words and words can be used in new ways to mean new things, and they can be instantly understood by people who never come across that word before. We have no idea of what "henpit mean, but as soon as we see the sentence, we can guess that it means some kind of air vehicle.(5 points)

【答案解析】解析：考查语言的区别性特征。语言的区别性特征主要包括任意性、双重性、创造性和移位性。任意性是语言的核心特征，指符号的形式或声音与其意义之间没有必然的逻辑关系。双重性指拥有两层结构的这种特性，底层结构是上层结构的组成成分，每层都有自身的组合规则。底层结构由一些本身没有意义的语音组成，但是它们可以各自组合成有意义的单位，从而形成具有独特、确定意义的上层单位。创造性指的是语言具有能产性，因为语言有双重性和递归性。移位性指人类语言可以让使用者表示在说话当时当地并不存在的物体、事件和观点。