单选题 How men first learnt to invent words is unknown; in other words, the origin of language is a mystery. All we really know is that men, unlike animals, somehow invented certain sound to express thoughts and feelings, actions and things, so that they could communicate with each other; and that later they agreed upon certain signs, called letters, which could be combined to represent those sounds, and which could be written down. Those sounds, whether spoken or written in letters, we call words.
The power of words, then, lies in their associations—the things they bring up before our minds. Words become filled with meaning for us by experience; and the longer we live, the more certain words recall to us the glad and sad events of our past; and the more we read and learn, the more the number of words that mean something to us increases.
Great writers are those who not only have great thoughts but also express these thoughts in words which appeal powerfully to our minds and emotions. This charming use of words is what we call literary style. Above all, the real poet is a master of words. He can convey his meaning in words which sing like music, and which by their position and association can move men to tears. We should therefore learn to choose our words carefully and use them accurately, or they will make our speech silly and dull.

【正确答案】 C

【答案解析】[解析] 本题的依据是第1段的最后一句话：Those sounds, whether spoken or written in letters, we call words。从中可知，C项为正确答案。A项不对，因为原文提过express thoughts and feelings, actions and things。B项中的not使这一选项与文中的事实相反，D项文中没有提及，原文只说过语言的起源是mystery，而不是语言本身。