2000年英语专业四级真题听力原文本（听写）

　　DICTATION

　　What We Know About Language
　　Many things about language are a mystery and will remain so. However, we now do know something about it. First, we know that all human beings have a language of some sort. No human race anywhere on earth is so backward that it has no language of its own at all. Second , there is no such thing as a primitive language. There are many people whose cultures are undeveloped but the languages they speak are by no means primitive. In all the languages existing in the world today, there are complexities that must have been developed for years. Third, we know that all languages are perfectly adequate. Each is a perfect means of expressing its culture. And finally, we know that language changes over time, which is natural and normal if a language is to survive. The language which remains unchanged is nothing but dead.