【正确答案】正确答案：Synonymy is the technical name for the sense relation of sameness. English is rich in synonyms; however, the total synonyms are rare.(1 point)Two or more words that are named as synonyms may differ from one another in the following ways:firstly,the so-called synonyms are context dependent. For example,"buy"is more appropriate than "purchase" in the sentence "Little Tom__a toy bear" , because here "Tom" is too young to perform an action as "purchase".(3 points)Secondly, synonyms may have different connotations. For example, compared with "politician", "statesmen" sounds more approving.(3 points)Thirdly, there are dialectal differences, such as "fall" in American English and "autumn" in British English.(3 points)

【答案解析】解析：考查英语同义词。同义关系指意义的相同或相近，意义上相近的词叫做同义词。但是在英语中，意义完全相同的词很少见，同义词总存在或多或少的细微差别。这种差别主要表现在以下三个方面： 一、同义词使用的语境不同； 二、同义词的内涵不同； 三、同义词存在方言差异。