Answer the following questions. Your answers should be clear and

Answer the following questions. Your answers should be clear and short. Write your answers on the ANSWER SHEET.What is the best way to classify prefixes? Why?
【正确答案】：

THE MAJORITY OF PREFIXES ARE CHARACTERIZED BY THEIR NON-CLASS-CHANGING NATURE. THEIR CHIEF FUNCTION IS TO CHANGE MEANINGS OF THE STEMS. ACCORDINGLY, WE SHALL CLASSIFY PREFIXES ON A SEMANTIC BASIS.

【题目解析】：本题主要考查对best way to classify prefixes——对前缀进行分类的最佳方法及why——其原因。大多数前缀具有非阶级变化的特性（non-class-changing nature）。它们的主要功能是改变词干的含义（meanings of the stems）。因此，我们应该根据词义对前缀进行分类。