急求英语作文，谢谢！

This summer vacation, I joined a social practice to be a part-time tourguide. There I found something that impressed me a lot.
People who love traveling are always finding places to take a vacation, which caused a lot of troubles.For example, I found that some people were used to dropping out the trash everywhere. They just regarded the sightseeings as their houses, which cost a lot to clean it up. Besides, some one should write down their names on the trees and walls. People who wanted to leave their names whereever they went are always to punish in future.
Nevertheless, I also found some good examples, such as teaching tourists not to destroy the places of historic interests, helping clean up the environment,etc..I think we all need to teach more people not to hurt our precious nature. What we really need to do is protect them form destroying.

修改了下

本来想写下，一看楼上的答复，感觉写得很不错了。只好放弃，另外顶下楼上的这位高手。

This summer vacation, I joined a social practice to be a par