2000 年专四听力答案 PART I 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 natura