A. They developed very fast.

　　B. They were large in number.

　　C. They had similar patters.

　　D. They were closely connected

　　29. Which of the following best explains"dominant " underlined in paragraph 2？

　　A. Complex.

　　B. Advanced.

　　C. Powerful.

　　D. Modem.

　　30. How many languages are spoken by less than 6, 000 people at present?

　　A. About 6 800

　　B. About 3 400

　　C. About 2.400

　　D. About 1-200

　　31. What is the min idea of the text?

　　A. New languages will be created.

　　B. Peoples lifestyles are reflected in languages

　　C. Human development results in fewer languages

　　D. Geography determines language evolution.

　　【答案】28. B

　　29. C

　　30. B

　　31. C

　　【解析】本文是一篇议论文。文章讲述了随着社会的发展人类语言越来越少及其原因。

　　28. 推理判断题。根据文章第一段中的When the world was still populated by hunter-gatherers, small, tightly knit (联系) groups developed their own patterns of speech independent of each other... when the world had just five to ten million people, they spoke perhaps 12,000 languages between them.可知，当世界以依靠狩猎为生的人居住的时候，小而联系紧密的群落形成了他们彼此之间独立的讲话模式。当世界上的人口数量不到一千万时，语言种类达到了12000种。由此推知，当时的语言种类很多。故选B。

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