一、研究背景语言是人们交流思想、获取知识的重要工具。心理学研究表明:幼儿时期是人的一生中语言发展的关键时期。实际上,幼儿在发出第一个词之前就已经在与成人的交际中,学到了和成人进行非语言交流的规则。他们知道怎样使自己的需求让照看的人理解,如用手势、姿 First, the research background Language is an important tool for people to exchange ideas and acquire knowledge. Psychological studies show that: early childhood is a critical period of language development in human life. In fact, young children learned the rules of nonverbal communication with adults before communicating the first word. They know how to make their needs understood by those who look after them, such as gestures, gestures