明朝北京的紫禁城是指（    ）

    As a student, my school life is boring. Every day I have to do the same things, such as having lessons, taking exams and doing exercises. But my hobby is playing basketball and I always play basketball whenever I'm free. I always forget to finish my homework and I am not doing as well as others. My parents are angry with me and I am worried about my study. What can I do? Should I stop playing basketball?

请你给Allan写个回帖，分析他的情况，谈谈你的看法，并结合自己的学习生活为他提出几条合理的建议。

要求：(1) 开头部分已经写好，你只需接着写就可以；(2) 文章必须与上面的内容呼应；(3) 词数：80词左右。

Hi Allan,

    I know you feel bored with the school life and you spend all your free time playing basketball.……

Yours,

Lin Hai

可以证明次氯酸是弱酸的事实是（　　）

2014年7月以来，安徽省遭遇极端天气，亳州市旱情持续，745万亩在地作物因缺水而出现卷叶、死亡等现象，已有200多万亩在地作物达到重旱程度，如图．因此，我们要养成日常节约用水的好习惯，请你写出一项身边日常生活中的节水建议：____