题目解析：
【题目翻译】为什么作者要包括以下信息：“起初，纸是用相对较小的纸贴在一起的，但到了14世纪初，可以得到非常大的纸——一米宽的纸。”？
A：提供造纸技术发展非常缓慢的证据
B：解释为什么纸从来没有像今天这么便宜
C：为了说明这一点，纸可以让艺术家们发展出更具表现力和复杂性的绘画
D：为了证明纸在使用大张纸的艺术家中比在使用小张纸的书商中更受欢迎
【判定题型】根据题干问法“why …… include”，题目询问引号中信息的修辞目的，可以判断本题为修辞目的题。
【关键词定位】：根据题目，定位到Passage 3 第4句，原句为“At first, paper was made in relatively small sheets that were pasted together, but by the beginning of the fourteenth century, very large sheets – as much as a meter across – were available. ”。
【引用内容分析】此句为细节句，往前看，二、三句均为细节，描述了纸张的优势，而此段的主题句也只表达了纸张的引入给各个领域带来了影响，无对应。所以此题较特殊往后看，并且例子句后的these large sheets meant…更能帮助我们判断，这是非常紧密的指代关系，表示了这些大纸张的作用就是使得艺术家的创作更复杂，能给予他们更多的创作空间和情绪。
【选项分析】
A.文章没有要说其发展过程很慢，故错误。
B.文章没有提到纸张便宜与否，故错误。
C.与原文相符，正确。
D.文章没有比较大艺术家和小书商使用纸张，故错误。
The introduction of paper spurred a conceptual revolution whose consequences have barely been explored. Although paper was never as cheap as it has become today, it was far less expensive than parchment, and therefore more people could afford to buy books, Paper is thinner than parchment, so more pages could be enclosed within a single volume. At first, paper was made in relatively small sheets that were pasted together, but by the beginning of the fourteenth century, very large sheets – as much as a meter across – were available. These large sheets meant that calligraphers and artists had more space on which to work. Paintings became more complicated, giving the artist greater opportunities to depict space or emotion. The increased availability of paper, particularly after 1250, encouraged people to develop systems of representation, such as architectural plans and drawings. This in turn allowed the easy transfer of artistic ideas and motifs over great distances from one medium to another, and in a different scale in ways that had been difficult, if not impossible, in the previous period.
