下列等式的右边是怎样从左边得到的？

（1）$\frac{1}{x+1}$=$\frac{x-1}{x^2-1}$（x﹣1≠0）

（2）$\frac{{\left(x+y\right)}^2}{x^2-y^2}$=$\frac{x+y}{x-y}$（x²﹣y²≠0）

读《顶碗少年》，根据课文内容判断下列说法的正误。

顶碗少年尽管表演最终失败了，但却给观众留下了深刻的印象。

    These are Cara and Ben. They are twins (双胞胎). They are twelve. This is their bedroom. It's a nice room. There are two beds in the room. The yellow bed is Cara's and that green one is Ben's. The twins have one desk and two chairs. The chairs look the same. Cara's sweater is on his bed. Ben's coat is on his chair. Their clock, books and pencil-boxes are on the desk. Their schoolbags are behind the chairs.

①正确认识祖国的历史和现实，增强热爱祖国的情感和振兴祖国的责任感

②树立民族自尊心和自信心

③要弘扬伟大的中华民族精神，高举爱国主义旗帜，锐意进取、自强不息、艰苦奋斗、顽强拼搏，真正把爱国之心变成报国之行。

④今天为振兴中华而勤奋学习，明天为创造祖国更辉煌的未来贡献自己的力量