完形填空

  Dear Peter，

    Without knowing more about you，it's hard for me to give you some good advice．

    But firstly．I am sure that you are 1 ．You said that nobody would care if you left  home．What about your2  ? And other family members ?It seems that you are very 3．You'd better go to a doctor or talk  4 your parents．They will be able to help you．

    Secondly，I'm sure there's someone else in your class who feels lonely，  5．You never know 6other people feel．Try to make friends with your classmates．And you could  7  a club to meet new people and make friends，too．

    You 8  find happiness in yourself．So my 9advice is to write a list of all the good things about yourself，learn to like yourself，and then  10  will see your confidence(信心)and like you，too． 

                                                                                                                                                                                                                   Yours，

                                                                                                                                                                                                                     Lily

一篇名为《90后心理问题面面观》的文章指出：一部分学生在学业上无法做到出类拔萃时，会选择用标新立异的方式，比如上课调皮捣蛋、起哄，穿奇装异服，试图通过这样的表现来获得“与众不同”的感觉，引起老师和同学关注，寻求心理平衡，获得心理满足。看看大街上的青少年，有些男生戴着耳环、染了发，有些女生刻意模仿自己喜欢的日韩明星的穿着打扮。

你对这一现象怎么看？

—I'm afraid not. You should do it by ____.

文文设计了一个关于实数运算的程序，按此程序，输入一个数后，输出的数比输入的数的平方小1，若输入$\sqrt{7}$，则输出的结果为(  )

和三角形三条边距离相等的点是（ ）