阅读短文，根据要求完成下面各小题。
The students’ life today can be very stressful (紧张的). They are under pressure (压力) every day. They need a (1)break from it. Parents should ask children to do something else. But not let them relax in front of the TV.  A hobby is the perfect answer.
There are many different kinds of hobbies. Chess is a good example. It is a very enjoyable game and it also helps children develop their thinking skills.
Collecting something is also a good hobby for children. A child can collect almost anything:
key rings, stamps, postcards, old coins, etc. Many of these collecting can be both interesting and fun. They teach children a lot and broaden (开阔)their knowledge. For example, gardening (园艺) is a useful hobby because it is a physical activity and it also teaches children about nature.
(2) A hobby can be a useful learning tool. Children may become experts in something if they really love their hobbies. Children will also learn to become more organized and make places, for example in collecting something. Hobbies will also teach children a lot about responsibility(责任).
小题1:用一个适当的词替换（1）处划线的词。
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小题2:在短文中找出可以替换下面所给句子的一句话。
It is a good hobby for children to collect something.
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小题3:How many kinds of hobbies can you find in this passage?
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小题4:在下面句子的横线上填上恰当的词，改写原文中的句子。
Gardening a useful hobby. Because it is          a physical activity           it teaches children about nature.
小题5:将文中划线部分（2）的英语句子译成汉语。______________________________________