班级：L3-A 姓名：Pearl 学号：20193000140日期：2020/3./28 作业序号：002

题目:Many young people spend a lot of time on internet without any parental supervision or control.What are some problems caused by unrestricted use of the internet?

As is known to all, the Internet is widely used in our daily life, but there are also many disadvantages of overusing the Internet.

Firstly, teenagers, who lack self-control, are easily addicted to the Internet and sit in front of the computer screen for a long time. First of all, it will do harm to their health, not conducive to the growth of bones will also cause eye damage, reduce their vision; And sitting in front of a computer reduces communication with the outside world, which is also bad for their mental health. Reduce the communication with parents, teachers and friends, children are easy to be separated from social life, even close to themselves, isolated from the real society, it is difficult to distinguish between the real world and the virtual world.

Therefore, it is necessary to use the Internet reasonably.