Languages are always changing. The English of today is very different from the English of 500 years ago. In time some even die out completely. About 1,000 years ago English was a little -known relative of German spoken on one of the borders（边界）of Europe.

　　If a language has a lot of speakers or if it is very old, there may be differences in the way it is spoken in different areas. That is, the language may have several dialects. Chinese is a good example of dialect differences. Chinese has been spoken for thousands of years by many millions of speakers. The differences between the dialects of Chinese are so great that speakers of Chinese from some parts of China cannot understand speakers from other parts.

　　40. The first paragraph mainly tells us that_______.

　　A. most people in the world speak Chinese

　　B. there are thousands of languages in the world today

　　C. man has much knowledge about languages

　　D. some people know several languages

　　41. Many European and Indian languages ______.

　　A. will soon die out completely

　　B. were once a relative of English

　　C. are the same as before

　　D. come from the same family

　　42. _____ seems to have changed a lot

　　A. Chinese

　　B. English

　　C. Spanish

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