班级：L3-A 姓名：黄山 学号：20193000329
日期：2020/3/27 作业序号（Writing Assignment No.）：002
题目：Many young people spend a lot of time on the 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 very useful in our daily life.But if we don't know moderation, there will be many disadvantages.First, using the Internet for too long is not good for your health.If we need to surf the Internet, we must focus on looking at the screen, which means that surfing the Internet for a long time will reduce our vision.In fact, many people are used to sitting on the Internet, which will reduce a health problem.Sitting for long periods of time can block blood circulation and cause serious illness.Besides, using the Internet for a long time will keep people away from the real society.This means they will only stay at home or not go out to communicate with others.In a word, it is bad for us to use the Internet for a long time, but it is good for us if we can control the time we use the Internet.
