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作者句法知识很棒，适当增加从句的使用，会取得更不错的成绩；文章结构不够严谨，应增加过程性词汇的使用；文章用了较为丰富的词汇，学术词汇略显单薄，同时注意单词拼写的检查。
Human activities have negative effect on plants and animal species. Some people think that it is too late to do anything about this problem. Other people believe that effective measures can be taken to improve this situation.As far as I am concerd, Human activities have both positive and negative essect on pants and animal species. Human activities have possitive effect on plants and animal species. Firstly, people created many things to conquer the natural society, natural disaters.For example, people found many new ways to protect the animal and plants from extinction.People found the way to overcome many illness which may easy to die in the antiout times. Secondly, the world becomes more and more beautiful. On the other side , there are two sides in each coin, many people have found the negative effect of human activities on plants and animal species.On one hand ,everybody people cut trees for making house and making the things they need.So it made the water and earth go away.On the other hand ,human being eats everything such like the palm of the bear and the monkeys and so on. Human beings made many rubishs and so on. As a word, human activities protect the nature just like they ruin it .Some people want to protect our home , some people distroy it just like they distroy themseves.They know it's not correct but they do it too.
