阅读短文，按要求完成短文后的各项任务。

My dear friends, what do you often do at the weekends or on holidays? Do you like going hiking? Most people enjoy hiking, especially in spring or autumn.
Hiking is a healthy activity. But do you know why many people like going hiking? The reason why people go hiking is different from each other. Here are some of the most important reasons for people to hike.
First, hiking is a kind of good _______, and it is good for your _______ and not hurt your body. You can relax(放松) yourself during the hiking. And you can get fresh air, too.
(1)Second, hiking is easy and cheap. All you need to do is to wear a pair of hiking shoes to start.
(2)At last, hiking is the best way to get away from your everyday life. You could hike alone or go with your family or your good friends. And you can have a picnic together during hiking.
So why not plan your hiking day right now? Let’s go hiking together!
在（1）句的空白处分别填入一个适当的词使句意完整、上下文通顺。
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将（2）句译成中文。
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回答问题：How many reasons for hiking are there in the passage?
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在文中找出与You just need to wear a pair of trainers to start your hiking. 意思相近的句子。
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在文中找出最能表达该短文主题的句子。
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