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 natural and normal if a language is to survive. / The language which remains unchanged is nothing but dead. PART Ⅱ LISTENING COMPREHENSION SECTION A CONVERSATIONS Questions 1 to 3 are based on the follow ing conversation. M:Jill,have you registered with the next semester? W:Not yet, there's still something that I'm not sure. Do you know if Professor Smith's economics 102 is still available to all undergraduate students? M: No, I don't think so. Last semester I tried to register in that course but all the other people told me not to. W: Why not? M: They said that my lack of knowledge in higher mathematics might be an obstacle in understanding Professor Smith's theory. W: Really? M: (I ) Jack tqld me that Professor Smith usually uses lots of formulas inside class. So you'd better make sure that you are extremely familiar with these formulas if you are seriously considering taking his c...