"Reasonable Use of Mobile Phones" PPT

"Reasonable Use of Mobile Phones" PPT

the data shows:

There are 46 people who own mobile phones, the ownership rate is 91%, 12 people have used mobile phones for more than a year, and 1 person currently does not have a mobile phone but is planning to buy one.

The importance of mobile phones

The mobile phone is a new communication tool commonly used in modern people's life and work. With the development of science and technology and the improvement of living standards, mobile phones have become more and more important and their popularity has become more and more widespread. Without mobile phones we would not be able to quickly connect with family and friends.

Mobile music, Internet, games

Wearing headphones for a long time to listen to music will damage the eardrum of the ear. In addition, it will also damage the hair cells in the inner ear. If a certain type of hair cells is damaged, the sounds in this frequency band will be inaudible. Normally, high-frequency hearing is more likely to be damaged. The famous singer Ren Xianqi suffers from a hearing system disease and cannot hear high-frequency sounds.

The mobile Internet is popular, hidden, and "contagious", and students around us are easily affected by it. In our class, more than half of the people in our class use mobile phones to access the Internet, and almost everyone uses their mobile phones to chat on QQ. The mobile network is spreading in our class.

Mobile Internet access has caused many teenagers to become addicted to the virtual world of the Internet and lose touch with reality, and it has also caused some teenagers to abandon their studies.

Mobile games are also harmful to our physical and mental health. The violent scenes in the games corrode our bodies and minds, making us unwilling to study and absent-minded, which seriously affects our studies. There are also students in the class who like mobile games.

Cell phone radiation

Case 1

Last July, a middle school student in Fujian suddenly fainted at home and was taken to the hospital by his parents, who diagnosed him with a brain tumor. His parents recalled that their son had always used a mobile phone, even putting it next to his pillow when sleeping. Through the recollections of the patient's family, the doctor determined that the middle school student used a mobile phone for a long time, and the electromagnetic waves from the mobile phone had long-term effects on brain cells, causing malignant transformation of brain cells and the formation of brain tumors.

Case 2

A middle school student in a certain city uses a mobile phone. Originally, he should have secondary sexual characteristics at this age, but he never had them. With doubts, his parents went to a doctor to diagnose him and determined that because he had been using his mobile phone, the signal interfered with the secretion of testicular sex hormones.

How to reduce radiation

1. Place your mobile phone as far away as possible, and do not place it on your body or next to your pillow.

2. During the day, the mobile phone should be stored as far away from the head, heart, kidneys and other parts as possible.

3. The electromagnetic radiation released when the mobile phone is connected is the largest. It is best to answer the call one or two seconds after the mobile phone rings. This will reduce the radiation by more than 50%.

4. The thermal effect generated by radiant energy is an accumulation process, so the time you use your mobile phone each time should be minimized. The cumulative call time of using a mobile phone every day should not exceed 1 to 2 hours.

5. Try to use headphones when making phone calls. When the mobile phone is kept more than 30cm away from the head, the radiation to the head will be greatly reduced. It’s best to alternate left and right.

6. Don’t put your phone next to your pillow when sleeping. After the mobile phone is turned off, it will still release trace amounts of radiation, so it is better to keep the mobile phone away from you when sleeping.

7. Use chili peppers to offset the harm of radiation. According to the latest research, red pepper can be directly used as a protective agent against radiation.

Use mobile phones wisely

When mobile games become increasingly popular, when QQ chat becomes overwhelming, and when the "thumb family" slowly rises, do you realize that it has seriously affected students' learning and life, and even eroded people's thoughts and souls? It is undeniable that mobile phones can indeed become a weapon for businessmen to win thousands of miles away, a savior to save lives in disasters, and a letter for a wanderer thousands of miles away to convey his thoughts to his mother. However, mobile phones are like a double-edged sword. While they bring us convenience, they also bring many hidden dangers to the growth of our middle school students.

Additional burden on parents.

When you use your mobile phone to call your friends, do you know that your parents are working hard for every cent you spend? When you use your mobile phone to play games, did you know that your mobile phone is like a radiation emitter that harms you and the people next to you? When you use your mobile phone to read novels? Do you remember your confused eyes when you had your vision checked?

Background information:

Practices in some areas of my country:

Hangzhou No. 1 Middle School: Cell phones are not allowed into school

Zhejiang Taizhou No. 1 Middle School: Students must sign a contract with the school before using mobile phones

Overseas practices:

Finland: Ban on selling mobile phones to teenagers

United States: Legislate mobile phones on campus

Ten years ago, school districts in every state in the United States enacted rules to completely ban the use of pagers and cell phones among school students.

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