题干

已知数列{an}满足a1 =0,,那么的值是(   )

A:2009×2010

B:20112

C:2010×2011

D:2011×2012

上一题 下一题 0.0难度 选择题 更新时间:2017-05-17 10:07:30

答案(点此获取答案解析)

C

同类题2

阅读下文,回答问题

品读经典,聆听高处的声音

白龙

       ①站在不同高度的书籍上,人们看到的风景各异;从低处的一叶障目到高处的霞光万丈,阅读的厚度,决定了人生格局与眼界心胸。如果把人类文明比做一座山峰,那么雄踞高山之巅的,就是历经世代淘洗而筛选出的经典文本。

       ②阅读经典,如同聆听山巅之城的智者们穿越时空的遥远回响。经典作品代表着人类精神的复杂性,标志着我们共同的先辈曾经抵达过的精神高度和思想深度。它对人心的理解和体恤,犹如一双越过时空的温暖臂膀,环住一个个困在冰冷湖面的灵魂。它以锐利的穿透力,让那些只知和现实讨价还价的人们,懂得什么叫对这个世界爱得深沉、情之激越,什么叫思想的力道和思考的痛感。

       ③然而,在纷纭万状的信息社会,进入经典文本所构成的精神世界是困难的,也是奢侈的。那似乎是一个和我们厕身其间的世界相平行的空间,独立、缥缈而易碎,一个电话或者微信的侵扰,就能迅速把我们拉回现实。古人说,闭门即是深山,读书随处净土。而现在,对于奔波忙碌的现代人来说,仅仅闭门恐怕是不够的,只有在静谧无声的夜晚,待一天的工作结束,关上手机,才能翻开泛黄的书页,小心翼翼地捕捉来自遥远时空的细弱声响。那个高处的世界并不许诺我们具体的好处,但入得其门,自然会感受宗庙之美、百官之富,产生一种“只有高贵纯洁心灵能够感受的欢愉”。

       ④正如登山需要阶梯,进入经典作品的世界同样需要拾阶而上。有时,理解经典作品的主题是困难的,需要借助思想的阶梯。理解经典作品中的主题,一般历千载而不变,充满泛着古老铜绿的端庄大词,重如千钧、庄严肃穆。诸如民族和命运、历史与兴衰等等。有时,通过一部经典去理解另一部经典,方能参透义理之精妙,醉心于云蒸霞蔚的经典意象,比如国学上“以传注经”的传统就是如此。有时,理解经典也需要人生的准备。正如陈年老茶需要用沸水才能浇出厚重余味,理解经典也需要我们用老水手般的人生阅历,用经久不息的温热内心,浇开经典作品中只属于独特个体的专属气息。惟其如此,方能找到每个人心中的哈姆雷特,让经典的鉴赏者代代不绝。

       ⑤经典只会让人变得谦逊,因为见识了大海而更懂得什么叫沉潜往复,登上了群山之巅而更能体会山花的璀璨只若指间流沙。而愈了解人类精神的由来和思想的系谱,人们才会愈发认清自己在这个世界所处的位置,从而拥抱真正属于自己的未来,写下属于我们时代的经典。

同类题4

阅读理解

    Everyone may make mistakes in his life, no matter how old he is. But not everyone knows what to do with them, especially the young people. Here is a story for you. You may find out the answer.

    There was a little boy visiting his grandparents on their farm. He was playing with a slingshot(弹弓) in the woods one day. He practiced a lot, but he could never hit his target(目标). He felt bored and went back for dinner.

    As he was walking back, he saw Grandma's pet duck. He used his slingshot one more time. He hit the duck in the head and killed it. He was very sad and afraid. He hid the dead duck in the woods. Then he saw his sister watching him. Sally saw it all, but she said nothing. After lunch that day Grandma said, “Sally, let's wash the dishes.” But Sally said, “Grandma, Johnny told me that he wanted to help in the kitchen today, didn't you, Johnny?” and then she said to him in a low voice, “Remember, the duck!” So Johnny washed the dishes.

    After several days of doing both his housework and Sally's, Johnny couldn't stand it any longer. He told Grandma that he killed the duck. She smiled, “I know. You see, I was standing at the window and I saw what you did. But I just wanted to know how long you would be your sister's slave(奴隶).”

    My friends, have you ever made such mistakes? As the saying goes, “Who can make no mistakes?” Next time when you do something wrong, you'd better say sorry to others. Others may forgive you, too.

根据短文内容,判断正误