把下列各数填入表示它所在的数集的大括号：

﹣2.4，3，21.08，0，﹣100，﹣（﹣2.28），﹣ $\frac{10}{3}$ ，﹣|﹣4|，

正有理数集合：{____}

负有理数集合：{____}

整数集合：{____}

分数集合：{____}．

（2012•梧州）2011年5月下旬，我国长江中下游地区发生严重干旱灾害。如图中的天气符号表示的天气现象，对旱情缓解最有利的是（　　）

    When I was a child in kindergarten, I had to take a nap(小睡) every single day. It was ____(probable) my least favorite thing about being in kindergarten.

    But now, as ____ adult, I love taking naps. Being able to relax and get some rest in the middle of the day is great! But attitudes toward naps ____ (be) quite different when comparing the US and China.

    In the US, taking a nap in the middle of the day ____ (look) down upon. People ____ take naps are seen as lazy. If you fall ____(sleep) at work, you can even be fired. But in China people have a much more relaxed attitude toward taking naps ____ in the US.

    On the one hand, it is true that you spend less time ____ (work) if you take a nap. But on the other hand, having a short rest can help you work ____(well). A good rest can improve your mood as well. ____why not take a nap during lunch break and make the rest of the day more enjoyable?

江南春^①

【北宋】寇准

杳杳烟波隔千里，白蘋香散东风起。

日落汀洲一望时，愁情不断如春水。

【注释】①此诗是诗人晚年被贬岭南时所作。寇准，字平仲，华州下邽（今陕西渭南）人。