完形填空
    A little girl lived in a simple and poor house on a hill. Usually she 1 play in the small garden. She could see over the garden fence and across the valley a wonderful house with shining golden windows high on another hill.2 she loved her parents and her family, she desired to live in such a house and 3all day about how wonderful and exciting 4must feel to live there.
    At the age when she gained some 5 skill and sensibility (识别力), she 6 her mother for a bike ride 7 the garden. Her mother finally allowed her to go，8 her keeping close to the house and not  9 too far. The day was beautiful. The little girl knew10 where she was heading!11 the hill and across the valley, she rode to the 12 of the golden house.
    13 she got off her bike and put it against the gate post, she focused on the path14to the house and then on the house itself.She was very disappointed when she 15 that all the windows were 16 and rather dirty.
    So 17and heart­broken, she didn't go any further. She 18 ， and all of a sudden she saw an amazing 19. There on the other side of the valley was a little house and its windows were golden. Looking at her little home, she20 that she had been living in her golden house filled with love and care. Everything she dreamed was right there in front of her house.

将一枚骰子先后抛掷两次，若第一次朝上一面的点数为$a$，第二次朝上一面的点数为$b$，则函数$y=a{x}^2-2bx+1$在$(-\infty ,\frac{1}{2}$上为减函数的概率是   （  ）

下列各句中，没有错别字的一项是(    )

依次填入下面句中横线处的词语，恰当的一项是（    ）

①不论他正义的愤怒有多大，总会过去，恼羞成怒的伏尔泰总会让位于心平气和的伏尔泰。于是，从这      的双目里露出了微笑。

②创造性的思维，必须有      新事物，并为此而活用知识的态度和意识，在此基础上，持之以恒地进行各种尝试。

③这种非凡的灵感，往往产生于这样的过程：      及其普通、甚至一闪念的想法，并对它反复推敲，逐渐充实。

④仿佛只要稍微慢下一点来，他也会像他的儿子一样      地对前方感到茫然和恐惧，从而也会打消他离开油麻地的主意。

解释下列词语。

①按兵不动

②必不得已