电脑的危害英语作文？电脑对视力造成危害:使用电脑时，眼睛最脆弱，特别容易引起青少年近视和睫状体痉挛。这些被称为“计算机视觉综合征”的疾病是一种压型疾病，因为眼睛长时间盯着一个地方，眨眼通常只有1/3次，从而减少眼内润滑剂的分泌。那么，电脑的危害英语作文？一起来了解一下吧。
The disadvantage of the Computers
As all as we know,the computers do harm to our life.For example,if you play it for more than 2 hours ,you will feel very tired and your eyesight will get poor.it's especially bad for students.some students always play computer games all day long and they gradually hate to study and soon,they will fall behind others.What'宽历s more,when you play computer games,you will forget the realistic life,maybe you even kill yourselves!so, please don'慎败搜t play computer games to live a happy life!
自枯陪己写的，不知如何~~
The Computer
The computer is widely used in all phases of society. In industry, business, education, medicine, nearly all walks of life, computers have made their appearance, providing great speed and accuracy for our work. Computers have been used in the home, offices, laboratories and research institutions, functioning as the most efficient and versatile instruments for calculating, sorting, filing, recording and distributing. Computers are indispensable to modern civilization. Without computers, our life and our society will undoubtedly suffer a big regression.
During the past five decades the computer has been rapidly advanced. Ever since the computer came into being, it has experienced the development of several generations, which are based respectively on vacuum tube, transistor and integrated circuit. Early computers were of great size, and had no match for the latest electronic computers in speed and accuracy. The Latter is capable of processing the most complicated information and reaching solution to problems in a fraction of time. At present, efforts are being made not only to bring the hardware to perfection, but also to improve the quality of the software.
Talkingaboutcomputers,Ibelievealmosteveryoneisnotunfamiliar,evenwithoutthecomputer,someworksalmostcannotbefinished.
NowIwillfocusontwopoints,that'theimportantroleinthefamily'sandthelimitationsinsociety.
asinthefamilylifeoftherole,Ithinkmanyfriendsarefamiliarwithit.
Wewillrelyonthecomputertocompletealotofwork,forexample,downloadandenjoymovies,
investigatevarietyofdataandinformationontheInternet,installsoftwaretodealwithgraphics,dataand
documents,especiallyinthelastfewyears,thebeginningepidemicofhomeoffice.Inotherwords,wemay
notneedtogotocompanies,relyonthecomputerathome,wecanalmostcompleteallthework,This
http://www.oh100.com/a/201110/19625.html
isaveryconvenientandhumaneformofatrend.Fromtheabovewecanseethathowimportantthe
computerisforthefamily.
Talkingaboutthelimitationsofthecomputersomeonemaydon
Many of us spend the bulk of our day peering at computer screens. Reading this article means there's a good chance you're looking at one right now.许多人每天都要花费很多时间在电脑屏幕前。比如读这篇文章的时候你就正在看着屏幕。
But does looking at a computer screen damage your eyes? Brisbane optometry professor Nathan Efron does not consider computer screens "harmful" to our eyes.看电脑屏幕真的会伤害我们的缓困侍视力吗？布里斯班眼科教授Nathan Efron并不这样认为。
But he admits if you use one a lot, you increase your risk of becoming slightly more short-sighted – where your eyes focus well only on close objects while more distant objects appear blurred. This is especially the case for children and young adults, whose eyes are still developing.但他承认如果你经常使用电脑屏幕，会增加你患近视的风险。
Computer radiation hazards
Computers emit radiation waves are often ignored. International MPR Ⅱ according to radiation safety requirements: must be less than in the 50cm distance equal to 25V / m radiation exposure.
However, the amount of radiation you know the computer is? Computer, the amount of radiation: 1, keyboard 1000V/m2, mouse 450V/m3, screen 218V/m4, host 170V/m5, Notebook2500V / m
In addition, electromagnetic radiation on the human body has eight major injuries:
."
Degree from harm, without doubt, the biggest hazards of electromagnetic radiation. Domestic and foreign medical experts, research shows that long-term, excessive electromagnetic radiation harmful to human reproductive system, nervous system and immune system causing direct damage to cardiovascular disease, diabetes, cancer, mutation and cause a major incentive for pregnant women, abortion, infertility, abnormal fetal diseases such as inducing factors, may directly affect the minor's body tissues and bones, causing vision, memory loss and decreased liver hematopoietic function, can lead to serious retinal detachment. In addition, electromagnetic radiation also causes of information security risks, using a special signal reception equipment to receive can be cracked, resulting in leakage of information caused unnecessary losses. Excessive electromagnetic radiation would interfere with other electronic devices around, affecting the normal operation of electromagnetic compatibility occurs (EMC) issues.
Therefore, the electromagnetic radiation has been following the World Health Organization as water, air, noise, the fourth largest source of environmental pollution, a hazard to human health of the invisible "killer", electromagnetic radiation protection has become an urgent task.
Coup against the computer radiation
Use a computer, it is best before the display screen with better quality of radiation. Attention to appropriate eating some carrots, bean sprouts, tomatoes, lean meat, animal liver and other rich in vitamin A, C and protein foods, often drink green tea, etc..
For life is stressful and busy people who, against the computer radiation is the most simple way to drink every morning, 2 to 3 cups of green tea, eat an orange. Tea is rich in vitamin A former, it is absorbed by the body, it can be quickly converted into vitamin A. Not only synthetic vitamin A rhodopsin, but also light in the dark under the eyes to see things more clearly, therefore, green tea can not only eliminate the computer radiation hazards, but also to protect and enhance vision. If not used to drink green tea, chrysanthemum tea can also play against the computer radiation and regulate bodily function.
Computer radiation is unavoidable, but can be reduced. First of all, as far as possible to buy new computers, generally do not use old computers, old computers are generally more powerful radiation, at the same distance, under conditions of similar models, usually 1-2 times the new computer. Computer operation on the display when the best computer security a special color filter panels to reduce the radiation hazards, indoor metal objects should not be placed outsiders, so as to prevent re-emission of electromagnetic waves. Use the computer to adjust the brightness of the screen, in general, the larger the screen brightness, electromagnetic radiation is stronger, the smaller the contrary. However, it can not be stressed too dark, too small to avoid effects due to brightness, and easy to cause eye fatigue. Also note that to maintain an appropriate distance from the screen. Away from the screen, the closer, the greater the electromagnetic radiation received by the human body, so good is half a meter away from the screen.
Computer use, will face a lot of electromagnetic radiation absorption of particles, to promptly wash with water, so that would reduce the radiation suffered 70%.
In addition to bad cactus attack, there is an advantage of Oh! Said to put a cactus in the computer table, help to reduce radiation.
Common computer will feel eye irritation, decreased vision, easy feeling of fatigue. Commonly used in diet on the computer should note the following:
Eat some good food on the eye, such as eggs, fish, cod liver oil, carrots, spinach, sweet potato, pumpkin, wolfberry, chrysanthemum, sesame, radish, animal liver.
Eat foods with high calcium, such as soy products, bone soup, eggs, milk, lean meat, shrimps and prawns.
Note that the vitamin supplement: Vitamin eat fresh fruits, vegetables.
Note enhanced resistance: eat plenty of foods increase the body resistance to disease, such as mushrooms, honey, edible fungus, seaweed, citrus, jujube, etc..
Anti-radiation of some food to eat: the computer although little effect on human health, but should prevent. Tea can reduce the radiation hazards, tea has anti-radiation effect of lipopolysaccharide. Spirulina, sea buckthorn oil also has anti-radiation effect.
In addition, the used computer should wash your face, usually to be physically active.
Computer placement is very important. Do not let the screen as far as possible toward the back of someone's place, because the back of the computer radiation is strongest, followed by left and right sides of the front screen instead of the weakest radiation. To be able to see clearly the word prevail, at least 50 cm to 75 cm distance, thus reducing the harm of electromagnetic radiation.
Attention to indoor air: research confirmed that the computer screen to produce a brominated dibenzofuran known carcinogen. Therefore, the best place to install the computer room ventilation fans, if not, with particular attention to ventilation when the Internet.
The face of the computer a long time is not good, then how to do? In fact, four cups of tea a day can not only fight against the radiation, but also protect the eyes.
1. Morning cup of green tea:
Green tea contains potent antioxidants and vitamin C, not only can eliminate free radicals, but also secrete hormones against intense pressure. A small amount of caffeine contained in green tea can stimulate the central nervous system, boost morale. But the best drink in the day, so as not to affect sleep.
2. Afternoon cup of chrysanthemum tea:
Chrysanthemum have eyesight Qinggan role, some people will simply bubble with chrysanthemum with wolfberry drink, or add honey chrysanthemum tea, all of the Jieyu helpful.
3. Tired wolfberry tea cup:
Wolfberry is rich in β-carotene, vitamin B1, vitamin C, calcium, iron, with nourishing liver, kidney, and improve eyesight. Has its own sweet tea is also the same as for snacks like raisins, solving the "computer users" astringent eye, fatigue has effect.
4. Cassia evening cup of tea:
Cassia remove heat, improve eyesight, make up brain, liver town, beneficial role of bones, if constipation were also able to dinner after dinner drink, is very effective for the treatment of constipation.
Some of the most suitable for computer users also drink tea, or snacks, not only can help you fight against the radiation, but also protect your eyes, anti-irritability it.
Mung bean barley soup
Mung bean can Qingrejiedu, diuretic swelling, barley can Jianpizhixie, Qingshenjianfei Qi, the workers often need to stay up late or upset air calm, dry mouth, constipation, acne, in addition to eat fruits and vegetables and add water outside, the green bean barley soup as a snack food, very helpful for relieving heat and arrests restless.
Eucommia Tea
Eucommia is the role of blood and bones strong, who is often sedentary, lumbar back pain helpful though, men and women can drink, if a female friend can be the physical end of period taken together with the Si Wu Tang.
以上就是电脑的危害英语作文的全部内容，they will fall behind others.What's more,when you play computer games,you will forget the realistic life,maybe you even kill yourselves!so, please don't play computer games to live a happy life!自己写的。
