A.each other B.the more C.express these thoughts D.learn to A. not only have great thoughts but also【T13】______ in words B. they could communicate with【T14】______ C. We should therefore【T15】______ choose our words D. the longer we live,【T16】______ certain words recall to us 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【T17】______; 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【T18】______ 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【T19】______ 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.【T20】______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：本题主要考查not only…but also结构。not only和but also后面跟并列结构，因为not only后面是动词原形，所以空格处也应填入动词原形结构。express these thoughts符合题意。所以，答案是express these thoughts。

【正确答案】 B

【答案解析】解析：根据语境可知，空格所在句的意思应为：我们只知道，人类不像动物，人类设法创造了某个音来表达思想感情、行为和事物，以便他们能够互相交流；并且后来他们对某些符号达成一致意见，这些符号被称为字母，它们可以连在一起代表那些音，而且可以用笔记录下来。所以，答案是B。

【正确答案】 D

【答案解析】解析：根据语境可知，空格所在句的意思应为：随着经验的增长，对于我们来说词充满意义，而且我们活得越长，就有更多的一些词让我们回想起过去的悲伤与快乐；我们读得越多，学得越多，就会知道更多对我们有意义的词。所以，D项符合题意。

【正确答案】 C

【答案解析】解析：根据语境可知，空格所在句的意思应为：因此我们应该学会慎重地选择我们所用的词语并准确地使用它们，不然的话，它们会让我们的谈吐变得愚蠢而又无聊。所以，，C项符合题意。