问题详情：
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*有10处语言错误，每句最多有两处。每处错误仅涉及一个单词的增加、删除和修改。
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：在错的词下画一横线，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。
Smart phones had become part of our daily life. No matter who we are, we can see people busy play with their smart phones. Smart phones benefit them. They help us escape the pressures of life and get informations. However, if we spend too much time on them, we won’t have time to contact face to face our friends. And our life, study and work will hurt. In my view, we should limit to our using smart phones except for a purpose of learning. Meanwhile it’s absolute necessary for us to take part in more outdoors activities.
【回答】
1. had→have
2. who→where
3. play→playing
4. them→us
5. informations→information
6. will hurt→will be hurt
7. limit to→limit
8. a purpose→the purpose
9. absolute→absolutely
10. outdoors→outdoor
知识点：其他
题型：短文改错