如图所示，一水平方向足够长的传送带以v_l=1m/s的速度沿顺时针方向运动，传送带右端有一与传送带等高的光滑水平面．物块以v₂=2m/s的速度水平向左滑上传送带后，对物块的运动，下列判断正确的是（   ）

一共有6只兔子，房子里有（           ）只。

                               6只

    The clock struck eleven at night. The whole house was quiet. Everyone was in bed except me. Under the strong light, I looked sad before a huge pile of troublesome stuff that were called “books”. I was going to have my exam the next day. "When can I go to bed?" I asked myself. I didn't answer; as a matter of fact, I dared not.

    The clock struck twelve. "Oh, dear!" I cried, "five more books to read before I can go to bed!” We pupils are the poorest in the world. Dad does not agree with me on this. He did not have to work so hard when he was a boy.

    The clock struck one. I was quite hopeless now. I forgot all I had learnt. I was too tired to go on. I did the only thing I could. I prayed, “Oh, God! Please help me pass the exam tomorrow. I do promise to work hard afterwards, Amen.” My eyes were so heavy that I could hardly open them. A few minutes later, with my head on the desk, I fell asleep.

【轮椅女孩的追梦人生】

    李玉洁是湖北省宣都市陆城街道头笔社区农家书屋的图书管理员，她7岁罹患类风湿，14岁因瘫痪辍学，15岁开始写作并多次获奖，自学取得大专学历，国家二级心理咨询师资格证，创办“知心姐姐工作室”，开通“知心姐姐”热线，开展励志演讲，在书屋，她办起了“小书桌”，寒暑假期间，社区里没有大人照看的孩子会到这里来找李玉洁，20多个孩子成了她的特殊工作对象，她督促着练字、做作业、复习功课，不收取任何费用……

    历经三年磨砺，靠着仅能打字的两根指头，她的25万字自传体小说《梦想在110厘米之上》终于在2015年7月出版，她告诉楚天都市报记者：“110厘米是我坐在轮椅上的高度，但我的梦想是超越这个高度的，弥补不能站着的遗憾的最好方式，就是去挣脱枷锁、追求梦想”。

李玉洁的追梦人生给了你哪些启示？