【正确答案】 A

【答案解析】[听力原文]
In every language there are two great classes of words which, taken together, make up the whole vocabulary. First, there are those words with which we become acquainted in daily conversation, which we learn, that is to say, from the members of our own family and from our familiar associates, and which we should know and use even if we could not read or write. They concern the common things of life, and are the goods in trade of all those who speak the language. Such words may be called "popular" , since they belong to the whole people and are not the exclusive possession of a limited class.
On the other hand, our language includes a large number of words that are comparatively seldom used in ordinary conversation. Their meanings are known to every educated person, but there is little occasion to use them at home or in the marketplace. Our first acquaintance with them comes not from our mother's lips or from the talk of our schoolmates, but from books that we read, lectures that we hear, or the more formal conversation of highly educated speakers who are discussing some particular topic in a style raised above the habitual level of everyday life. Such words are called "learned ". And the distinction between them and "popular" words is of great importance to a right understanding of the language.

[解析] 推断题。文中指出，我们在日常生活中使用的语言是从家人或朋友那儿学来的，属于每个人，故A为正确答案。B文中未提及。C和原文相悖。D和原文不符。

【正确答案】 B

【答案解析】[解析] 推断题。文中指出，每种语言中有两大用语，“popular”words和“learned”words，前者来源于日常生活，后者来源于书本，两者结合起来，构成整个语言，由此可推断，B为正确答案。A，C，D文中均未提及。

【正确答案】 A

【答案解析】[解析] 推断题。因为popular language来源于生活，和日常生活息息相关，故A为正确答案。B，C，D文中均未提及。