题目内容：

短文改错

文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。  删除：把多余的词用斜线（\）划掉。  增加：在缺词处加一个漏字符号（∧）,并在其下面写出该加的词。 修改：在错的词下划一横线,在该词下面写出修改后的词。

注意：1、每处错误及修改均仅限一词。  2、只允许修改10处,多者（从11处起）不计分。

Hiking has become popular in China during recent years, and more and more people become hikers, that are called Donkey Friends (驴友) in Chinese. A discussion about hiking has held in our class. Some students think that hiking during vacation can make people to feel healthier, fresher and more harmonious with nature. They find themselves deep attracted by the beauty of nature. They can also be relaxing walking in deep mountains. But nowadays some hikers even begin to explore the places people have never been to, and accidents have been happened now and then because poor knowledge of hiking. Some hikers even lost their life. The other students in our class think it not safe to organize so dangerous activities. They make suggestions which laws should be passed and hikers should be trained before they attend the activities