6. Since many students dedicate themselves to studying the course work, they pay no attention to reading classics.
理由三：经典著作比较深奥，让人疲惫厌倦
7. In the third place, the contents of classics are usually filled with abstruse concepts and ideas.
理由三的延伸：
8. Therefore, college students invariably feel tired and bored in the process of reading.
第三段
总结段落结构：8句话构成整个第三段
①主题句
②理由一
③理由一的延伸
④理由二
⑤理由二的延伸
⑥理由二的进一步解释
⑦理由三
⑧理由三的延伸
①improve people’s living standards
②increase the government revenue
③improve the image of our country
④increase reputation and upgrade the status in the international community
⑤enhance mutual understanding
⑥play an educational role
⑦maintain world peace