1 . 短文中共有10处错误，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(∧)，并在此符号下面写出该加的词。
删除：把多余的词用斜线( \ )划掉。
修改：在错的词下划一横线，并在该词的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。

When I was a child, I hoped to live in the city. I think I would be happy there. Now I am living in a city, and I miss my home in the countryside consisted of clean air and the green mountains. Fortunately, the environment has been polluted on the development of industrialization. Lots of studies have shown that global warming has already become a very seriously problem. The airs we breathe in is getting dirtier and dirtier, that causes many diseases. We must draw conclusion and find ways to protect our environment. If you fail to do so , we’ll live to regret it .