题目

Around twenty years ago I was living in York．21  I had a lot of experience and a Master's degree, I could not find 22  work..  I was 23  a school bus to make ends meet and 24  with a friend of mine, for I had lost my flat．I had 25 five interviews with a company and one day between bus runs they called to say I did not 26  the job．“Why has my life become so 27  ?” I thought painfully.  As I pulled the bus over to 28  a little girl, she handed me an earring 29  I should keep it 30  somebody claimed (认领) it．The earring was painted black and said “BE HAPPY3．已知f（x）=$\left\{{\begin{array}{l}{\frac{x-1}{x-2}，（x≤0）}\\{{{log}_2}x，（x＞0）}\end{array}}$，则关于x的不等式f（x）＞$\frac{1}{2}$的解集为{x|x＜0或x$＞\sqrt{2}$}．