38. Why does the author mention "artistic, political, or pedagogic communication" in line17?
(A) As examples of public performance
(B) As examples of basic styles of communication
(C) To contrast them to singing
(D) To introduce the idea of self-image
39. According to the passage, an exuberant tone of voice, may be an indication of a person’s
(A) general physical health
(B) personality
(C) ability to communicate
(D) vocal quality
40. According to the passage, an overconfident front may hide
(A) hostility
(B) shyness
(C) friendliness
(D) strength
41. The word "drastically" in line 24 is closest in meaning to
(A) frequently
(B) exactly
(C) severely
(D) easily
42. The word "evidenced" in line 25 is closest in meaning to
(A) questioned
(B) repeated
(C) indicated
(D) exaggerated
43. According to the passage, what does a constricted and harsh voice indicate?
(A) Lethargy
(B) Depression
(C) Boredom
(D) Anger
参考答案：DBB ADABB CC