短文改错
假定英语课上老师要求同桌之间交换修改作文, 请你修改你同桌写的以下作文。
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。
增加:在缺词处加一个漏词符号(∧∧), 并在其下面写出该加的词.
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线, 并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(从第11处起)不计分。
Hiking has become popular in China during recent years, and more and more people become
hikers, who are calling Donkey Friends(驴友)in Chinese.A discussion about hiking has held in our
class.Some students think that hiking during vacations 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.
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功的唯一标准就是能否与社会、生态和谐发展，工程不仅是技术问题，更多的是哲学范畴问题。许多院士呼吁：工程活动需要哲学的支撑。“工程活动需要哲学的支撑”是因为