1 . 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。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），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.每处错误及其修改均仅限一词；
2.只允许修改10处，多者（从第11处起）不计分。

Last Sunday, my friends and I went to seaside. There was many people swimming in the sea. We felt about happy when we saw some wonderful view. But something unpleasant caught their eyes. Some visitors throw a lot of rubbish into the sea. We also found some dead fish, plastic bags and empty bottles float on the surface of the water, and the air smelt terribly. The marine (海的) environment is seriously damaged, what makes me worried. I think we should take effective measures to protecting the environment. Only by doing it will we live better and become healthier.