用计算器计算：

（1）（﹣32.5）÷（0.25）﹣（﹣7.8）×3；

（2）（﹣5）²﹣2×（﹣3）²；

（3）﹣12×5﹣81÷（﹣9）×（﹣2）⁴．

726  1006  998  1787  4000

____＞____＞____＞____＞____

                                         A    

    People's hobbies aren't always the same. They change with many things. Here are some examples:

Age

    Hobbies change with your age. When you're a kid, you may be interested in playing games, collecting toys etc. When you study at school, you may be interested in sports, pop music and movie stars. When you're old, you may be interested in chatting and listening to Beijing Opera.

Job

    Hobbies change with people's jobs. Teachers may like staying with their students. Doctors may like all kinds of medicine. Drivers may like all kinds of vehicles and athletes may like all kinds of sports games.

Season

    Hobbies change with seasons. People may have different hobbies in different seasons. In spring, you may like flying kites. In summer, swimming is a good choice(选择). In autumn, you may like to go hiking and in winter, skating must be great fun.