据新华社电2009年12月5日零时20分，一辆装载黑火药的江西籍大货车行驶至京珠高速湖北段时起火爆炸，造成现场4人死亡，高速路面严重损毁。黑火药爆炸过程中发生反应的化学方程式为2KNO₃＋3C＋S===K₂S＋N₂↑＋3CO₂ ↑。下列说法正确的是

用原文语句填空。

（1）愚公移山的原因是：___________，___________。

（2）愚公认为移山定会成功的理由是：___________，___________。

小红是个学习成绩优秀的学生，而且听从父母的安排参加了星期天钢琴、绘画辅导班。他告诉老师说：自己太忙，为了不影响学习，她决定不担任班干部了。此后也很少参加班集体活动，你认为小红这种做法对吗？为什么？ 

      Mr Jones was a millionaire(百万富翁). One day he went to stay at a hotel in New York. He hoped to have the cheapest room to live in. Mr Jones asked, "What price(价格) is the room?". The boss (老板) told him. "And which floor is it on?" Again the boss told him. "Is that the cheapest room you have? I' m staying here by myself and only need a small room. "
     The boss said, "That room is the smallest and cheapest we have. But why do you choose a poor room like that? When your son stays here, he always stays at our dearest room. Yours is the cheapest. " "Yes," said Mr Jones, "his father is a very rich man, but mine isn' t.

已知x=$\sqrt{3}$+1，y=$\sqrt{3}$﹣1，则代数式$\frac{y}{x}$+$\frac{x}{y}$的值是____