题目内容：

阅读下面短文，掌握其大意，然后从1—15各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。

In every cultivated language there are two greet classes of words which, taken together, comprise the whole vocabulary. First, there are those words   1   which we become acquainted in daily conversation, which we   2   ,that is to say, from the    3   of our own family and from our familiar associates, and   4   we should know and use we could not read or write. They    5   the common things of life, and are the stock in trade of all who    6   the language. Such words may be called “popular”, since they belong to the people    7    and are not the exclusive of a limited class. On the other hand, our language   9    a multitude of words which are comparatively used in ordinary conversation. Their meanings are known to every educated person, but there is little    10    to use them at home or in the market-place. Our    11    acquaintance with them comes not from our mother's or from the talk of our school-mates, from books that we read, lectures that we    12    ,or the more    13    conversation of highly educated speakers who are discussing some particular    14   in a style appropriately elevated above the habitual of everyday life. Such words are called “learned”, and the    15    between them and the “popular” words is of great importance to a right understanding of linguistic process.

1.A．at        B．with       C．by           D．through

2.A．study     B．imitate       C．stimulate   D．learn

3.A．mates     B．relatives    C．members   D．fellows

4.A．which      B．that          C．those       D．ones

5.A．mind      B．concern      C．care       D．involve

6.A．hire       B．apply     C．adopt              D．use

7.A．in public  B．at most      C．at large      D．at best

8.A．consists  B．comprises C．constitutes         D． composes

9.A．seldom   B．much     C．never     D．often

10.A．prospect       B．way         C．reason        D． necessity

11.A．primary         B．first        C．principal     D．prior

12.A．hear of B．attend        C．hear from  D．listen

13.A．former  B．formula      C．formal        D． formative

14.A．theme  B．topic          C．idea          D．point

15.A．diversionB．distinctionC．diversity   D．similarity