填空题. Humanity's highly developed ability to communicate verbally is our essence. With our tremendous vocabulary, we would perhaps be 1 not much better off than gorillas and monkeys. Language is taken as 2 granted since it is a basic characteristic. But it is, for all its universality, among the most powerful of human tools. "The pen is mightier than the sword." We define language a system of communication that is primarily 3 verbal, symbolic, dually-patterned, and arbitrary and is used by humans with common cultural expectancies. Language is also a mean to communicate ideas, knowledge and emotions with other 4 individuals through the use of the body. The system of communication used is a set of codes or rules; a specific signaling system developed by humans. This signaling system consists of sounds used by individuals to express knowledge, emotions and ideas. This system is learned and passed on through culture 5 transmission by the teaching and the imitation of others. This system is significant so it is purely human in nature and no other species are 6 able to duplicate our system. Language is primarily verbal because it is part of the grammatical machine in humans which uses a sound, 7 phonology, to express ideas and emotions. The broadest definition for language includes much more. For 8 example, we have codes, such as Morse, flag, smoke signals, body language, and to extent even music. Computer programs include 9 special coding that can in some sense being called language. 10