（2014·全国新课标卷Ⅱ文综·41）阅读下列材料，完成下列要求。

材料  世界近代史教材目录对比（节选）

比较两份目录并结合所学知识，指出其中一处不同，并分析出现这种不同的原因。（所指出的不同之处明确清楚；原因可从一个或多个角度进行分析，观点明确，合理充分。）

    I have a friend. His name is Jack. ③He is healthy because(因为) he plays sports. He runs every day. He runs to his ___①____ in the morning and he runs ____②____ after school in the afternoon. He can run fast. He likes playing soccer, volleyball, tennis, basketball , ping-pong and more. He has three soccer balls, two volleyballs, six tennis rackets, four basketballs and many ping-pong balls. They are in his room. He plays sports with his friends every day. He likes many sports stars and he often watches them on TV. All my classmates say Jack is sporty (爱好体育)。