一．阅读理解（40分）
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The time may soon come when we say goodbye to most of the world’s languages. Today humans express themselves in over 6,000 different languages. But that is quickly changing. Many scientists say that over half of these languages will disappear within the next 50 years. After 100 years, the languages used in the world will not be more than 20.
Why? It is because people from different cultures live and work together much more often than before. This brings change. The languages of the world’s main cultures are replacing the languages of the smaller cultures.
