班级：L3-B              姓名：Kairos              班级序号：01   

日期：2020/5/12          作业序号（Writing Assignment No.）：007

题目：Some people say that mobile phones represent a danger to users because of the possible health issues, such as cancer or brain damage, associated with them. Others say that mobile phones are a great benefit to mankind. Evaluate these two viewpoints and give your own opinion.

As is known to all, mobile phone is a very convenient modern communication tool. It becomes an important assistant of human beings, so everyone can't live without mobile phone. High technology is a double-edged sword for our life, convenient for our life but also bring trouble to our life.

Looking at the mobile phone for a long time can do great harm to people's eyes, especially children will be short-sighted and 80% of adults will get cervical spondylosis. Radiation from mobile phones can stimulate nervous tension in the brain and keep people awake, thereby reducing the quality of sleep. So mobile phones are very harmful to people.

But mobile phones also bring us a lot of benefits. This is an era of knowledge economy, which is most important to help us acquire information and broaden our horizons. We can find the learning materials the fastest and learn more knowledge outside the classroom. We can communicate with our relatives and friends in real time on the mobile phone, making the communication between people more convenient and promoting mutual affection. Also can be in the boring time, appropriate leisure entertainment, help us relax.

In my opinion, both the advantages and disadvantages of mobile phones should be viewed rationally. With the development of society and the continuous improvement of people's living standards, mobile phones have gradually become a necessary mass consumer goods. We should use the mobile phone correctly and control the time on the Internet. (243 words)