50 words of civilized and hygienic knowledge

1. Tips on civilized hygiene

"Good habits of civilized hygiene"

1. Cover your mouth with a handkerchief or tissue when sneezing or coughing in crowded places No. No spitting, no swearing, no smoking in public places.

2. Develop good personal hygiene habits, wash your hands frequently, and do not wipe your hands with dirty towels.

3. Avoid sharing water cups, tableware, towels, toothbrushes and other items with others.

4. Do a good job in isolating patients with respiratory infectious diseases and disinfecting the environment.

5. Strengthen environmental sanitation and indoor ventilation in classrooms, student dormitories and other places. If there are patients with respiratory infectious disease symptoms around, the number of ventilations should be increased, and drafts should be avoided when opening windows. , pay attention to keep warm. Clothes and bedding should be exposed to the sun frequently.

6. Drink more water, eat more fruits and vegetables, and exercise more to increase the body's immunity.

7. Try to avoid going to crowded public places.

8. Do not litter, do not graffiti, and do not damage public facilities.

9. Don’t jaywalk on highways, don’t trample on green spaces, and don’t run red lights.

2. Civilized and Hygiene Tips

"Good Civilized and Hygiene Habits" 1. Cover your mouth and nose with a handkerchief or tissue when sneezing or coughing in crowded places, and do not spit anywhere. Don't use bad words and don't smoke in public places.

2. Develop good personal hygiene habits, wash your hands frequently, and do not wipe your hands with dirty towels. 3. Avoid sharing water cups, tableware, towels, toothbrushes and other items with others.

4. Do a good job in isolating patients with respiratory infectious diseases and disinfecting the environment. 5. Strengthen environmental sanitation and indoor ventilation in classrooms, student dormitories and other places. If there are patients with respiratory infectious disease symptoms around, the number of ventilations should be increased. When opening windows, avoid drafts and keep warm.

Clothes and bedding should be exposed to the sun frequently. 6. Drink more water, eat more fruits and vegetables, and exercise more to increase the body's immunity.

7. Try to avoid going to crowded public places. 8. Do not litter, do not graffiti, and do not damage public facilities.

9. Don’t jaywalk on highways, don’t trample on green spaces, and don’t run red lights.

3. A 50-word short essay on creating a civilized and hygienic city

Civilization is a breeze that brightens people's mood; civilization is a lamp that illuminates the future; civilization A rain nourishes the dry soul.

“A good environment can make people happy, but more importantly, it changes and molds people. To build a socialist market economy, we must pay special attention to the construction of spiritual civilization and insist on treating the construction of material civilization and spiritual civilization as a unified struggle. Goal. "If we want to change the face of the city, we must not only do a good job in construction, but also spread spiritual civilization well.

The people are the masters of the city. They are not only the beneficiaries of urban civilization, but also the builders of urban civilization. Urban civilization is inseparable from personal civilization. As a member of the big family of the city, every citizen has the responsibility and obligation to add color to our city through his or her own civilized behavior.

Making a city better is not only a matter for ***, but also a matter for each of our citizens. Only by working together, starting from bits and pieces, starting from me, starting from today, and making positive contributions to creating a civilized city, can we make our city more and more beautiful.

4. A short composition of about 50 words on health knowledge

From May 2008 to May 2011, Ankang plans to use three years to establish Ankang as a provincial level Sanitary city and excellent tourism city, referred to as "double entrepreneurship and innovation".

There is a young model for mass entrepreneurship and innovation in our factory. She is Jiang Antian. Once, she and I went for a picnic with other friends. We carried large and small bags and went to the agreed place - the lawn of the second area of ??___ Factory.

Everyone gathered together, some were eating chocolate, some were eating fruits, and some were eating biscuits... We threw garbage all over the floor. Before we knew it, it was getting late. It was time for us to go home. Before leaving Before, she picked up all the rubbish on the ground. I asked curiously: "Jiang Antian, why are you picking up all this rubbish?" She said: "Now is mass entrepreneurship and innovation, and I also want to contribute to mass entrepreneurship and innovation." After saying that, she lowered her head and started picking it up.

Another time, when I was at school, I gave her a pack of hawthorn slices. After she finished eating, she put the plastic wrapper in her pocket and said she was going to school and threw it into the trash can.

In this way, her every move is affecting me, and I will follow her, and I will definitely contribute to mass entrepreneurship and innovation.

5. Hygiene knowledge

1. What personal hygiene habits should primary school students develop? (1) Wash your face in the morning and evening (2) Brush your teeth in the morning and evening (3) Wash your hands before meals and after using the toilet (4) Wash your feet before going to bed (5) Wash your hair frequently (6) Take a bath frequently (7) Cut your nails frequently (8) Eat raw fruits and melons Wash your hands (9) Don’t drink boiled water (10) Don’t lie down and read 2. Under what circumstances should you wash your hands? (1) Wash your hands before eating and after using the toilet (2) Wash your hands before eating (3) Wash your hands after working (4) Wash your hands after playing games (5) Wash your hands after touching dirty things (6) Contagious by touch You should wash your hands after handling the patient's things (7) You should wash your hands after returning from a public place (8) You should wash your hands before handling dishes and chopsticks 3. When writing and reading, what should be the distance between the eyes and the book? 30-35 centimeters, or about one foot.

4. Why should you get a haircut in time and wash your hair frequently? Haircuts and shampoos can remove dirt, dandruff, and germs from the hair and scalp, prevent tinea capitis, skin diseases, and prevent head lice. 5. Why can’t you drink raw water? Raw water contains bacteria and eggs, which can cause intestinal infectious diseases (enteritis, dysentery, typhoid, etc.) and intestinal parasites (ascariasis, etc.).

6. Why can’t you eat spoiled food? Spoiled food contains a large number of germs and toxins, which can cause food poisoning, enteritis, and dysentery after eating, manifesting as: nausea, vomiting, abdominal pain, diarrhea, and even life-threatening in severe cases. 7. What are the harms of picky eaters and partial eclipses? Picky eaters and picky eaters can cause a lack of nutrients, lead to malnutrition, and affect growth, development and health.

8. Why is it not advisable to engage in strenuous activities immediately after a meal? I had just eaten and my stomach was full of food. Strenuous exercise affects normal gastrointestinal digestion and can cause abdominal pain, nausea, vomiting, etc. Over time, it can also cause indigestion and stomach problems.

9. What should you pay attention to when reading and writing? The posture should be correct, the lighting should be appropriate, the distance between the eyes and the book should be about one foot, and the time should not be too long. Do not read when walking or riding in the car. 10. What are the benefits of doing eye exercises? Eliminate eye fatigue, protect vision, and prevent myopia.

11. How many times should you brush your teeth every day? When to brush? You should brush your teeth twice a day, once in the morning and once in the evening. 12. How to protect teeth? (1) Rinse your mouth after eating (2) Brush your teeth in the morning and evening (3) Don’t bite on hard things (4) Don’t eat things that are too cold or hot (5) Don’t eat before going to bed (6) Treat dental disease promptly 13. Why not Biting pens and fingers? (1) The pen tip and fingers are not clean (containing bacteria, insect eggs, dust, etc.), which can cause diseases (2) Affect the development of teeth and fingers 14. How to prevent pesticide poisoning? (1) Do not play with bottles, pockets and pesticide sprayers that have contained pesticides (2) Avoid inhaling pesticides through the mouth or nose (3) Prevent pesticides from contaminating the skin. If the skin is contaminated with pesticides, rinse them in time (4) Wash fruits and vegetables. 15. Why can’t you pick your ears at will? Picking the ears is an unhygienic habit that can easily damage the external auditory canal, cause inflammation or boils, and may also damage the eardrum, cause otitis media, and cause hearing loss.

Even cause deafness.

16. How to prevent ascariasis? (1) Wash your hands before meals and after using the toilet (2) Do not drink raw water (3) Eat raw fruits and vegetables, and wash them thoroughly (4) Do not bite your fingers or pens 17. How to prevent trachoma? (1) One face towel for each person (2) No need to rub your eyes with dirty hands (3) Keep handkerchiefs, towels, and washbasins clean (4) If possible, it is best to have a dedicated washbasin for each person 18. What are the harmful effects of spitting? Spitting is an uncivilized behavior: sputum contains germs, and spitting will pollute the environment and spread diseases.

19. What do the “four evils” refer to? Flies Rats Mosquitoes Cockroaches 20. What should you do after being bitten by a dog? Go to the hospital or health center for treatment immediately and get the rabies vaccine promptly. 21. How much sleep should primary school students get at least every day? 10 hours 22. What diseases can flies and mosquitoes spread? Flies spread: enteritis, dysentery, typhoid, hepatitis A, etc.

Mosquito-borne: Japanese encephalitis, malaria. 23. What is the main transmission route of hepatitis? Hepatitis A: Mainly transmitted through patient feces contaminating water sources and food. Hepatitis B: Mainly transmitted through blood and blood products.

24. Why can’t you defecate anywhere? (1) Pollution of the environment (2) Spread of diseases (3) Uncivilized 25. Why does each person need a toothbrush when brushing his teeth? Prevent each other from transmitting diseases 26. How to prevent colds? (1) Exercise and improve your physical fitness (2) Open windows frequently for ventilation (3) Add or remove clothes as the climate changes (4) Do not visit patients’ homes (5) Do not go to public places when colds are prevalent 27. At home What should I do if I have hepatitis patients? (1) Treat in time (2) Isolate and disinfect (use boiling water to boil the dishes, towels, clothes used by the patient. Use disinfectant to wipe the furniture used by the patient, etc.) (3) Wash hands after contact with the patient (4) Do not eat the patient Leftovers 28. How to keep the classroom clean and hygienic? (1) Sweep the floor every day and sprinkle water before sweeping the floor (2) Wipe tables, chairs, doors and windows frequently (3) Do not throw paper scraps and peels (4) Do not spit (5) Place tables and chairs neatly (6) Pay attention to ventilation 29. What should be done to maintain public health? (1) Clean the indoor and outdoor environment (2) Do not spit (3) Do not litter with paper scraps or peels (4) Do not defecate anywhere (5) Do not graffiti on the walls, tables and chairs.

6. Safety knowledge, within 50 words, no less than 30 words, urgent

1. Parents and teachers should educate children to develop a good habit of not playing with fire. No unit may organize minors to fight fires.

2. Never throw away cigarette butts and tinder.

3. Inflammable and combustible materials should not be used for interior decoration.

4. Fire hydrants are related to public safety and must not be damaged, occupied or buried.

5. Take good care of fire-fighting equipment and master the use of commonly used fire-fighting equipment.

6. Do not bring flammable and explosive items into public places or take public transportation.

7. When entering a public place, pay attention to fire signs and remember the evacuation direction.

8. Keep evacuation routes clear under all circumstances.

9. Anyone who discovers behavior that endangers the fire safety of the public security department can report it to the public security fire department or public security personnel on duty.

10. Be especially careful when using fire in daily life, and do not place flammable or flammable items near the fire source.

l1. If you find a gas leak, close the valve immediately, open doors and windows, and do not touch electrical switches or use open flames.

12. Electrical circuits that are worn out and aged must be repaired and replaced in time.

13. If the circuit fuse (piece) is blown, do not replace it with copper wire or iron wire.

14. Do not overload electricity.

15. If you find a fire, call l19 immediately. The fire brigade will put out the fire free of charge.

7. Hygiene tips

1. Wash your hands before eating and after going to the toilet: Hands are the "diplomatic organs" of the human body. They take the lead in all people's "foreign affairs activities". For example, doing all kinds of work, picking up the garbage, cleaning spittoons, washing feet, putting on shoes, applying stool, etc. all have to be done by hand.

Therefore, hands are easily infected with many pathogenic microorganisms. Scientists have conducted a survey and found that an unwashed hand contains at least 40,000 to 400,000 bacteria.

The cracks between fingernails are a good place for bacteria to hide. There can be as many as 3.8 billion bacteria hidden in a crack between nails. In addition, someone conducted an experiment. When people with acute dysentery used 5 to 8 layers of toilet paper, the Shigella bacilli could penetrate into the hands, and the Shigella dysenteriae bacteria could survive on the hands for 3 days.

The influenza virus can survive on moist, warm hands for 7 days. Therefore, the hands are very dirty.

Moreover, when traveling, visiting and studying, or performing tasks, your hands often come into contact with some items, which will make your hands dirty. In particular, patients with infectious diseases and some apparently healthy people who actually carry viruses in their bodies often spread pathogenic microorganisms to various supplies and utensils. When the hands of healthy people come into contact, the pathogenic microorganisms will come to your hands.

If you don’t wash your hands before eating and after using the toilet, you can bring bacteria into your mouth and eat them in your stomach. This is what people often say: “Bacteria come from your hands, and diseases come from your mouth.” Therefore, we should develop the habit of cutting nails frequently and washing hands before meals, after using the toilet, and after working.

Washing your hands can remove bacteria and insect eggs adhering to your hands. Washing your hands with running water can remove 80% of the bacteria on your hands. If you wash your hands with soap and then rinse them with running water, you can remove them. Up to 99% of bacteria. When washing hands, be careful not to use the same basin of water with several people to avoid cross-infection and the spread of diseases to each other. The time should be more than 15 seconds.

2. Do not spit or shake your nose: Phlegm is a viscous liquid secreted by the respiratory tract and is expelled from the body through coughing. Everyone can spit, but not everyone has a good way of spitting.

Some people do not pay attention to maintaining the environment. They spit phlegm everywhere and throw mucus all over the floor, which not only affects hygiene but also damages their personal image. Some so-called "hygienic" people spit phlegm on the ground and wipe it with their shoes, thinking that it will be clean if they can't see the phlegm stains, and it will not hinder hygiene and health.

As everyone knows, sputum contains millions of bacteria, viruses, fungi, mycoplasma, etc. Especially people with respiratory diseases, such as tuberculosis, influenza, meningitis, etc., have more bacteria and viruses in their sputum. This is especially true for the early epidemic of SARS.

Someone examined a mouthful of sputum and found that it contained hundreds of thousands of bacteria. Millions of Mycobacterium tuberculosis bacteria can be found in a mouthful of sputum from tuberculosis patients, the most hated disease.

If you spit the phlegm on the ground, when the phlegm dries, the bacteria will fly into the air with the dust. Healthy people may get respiratory diseases if they inhale such dust. Therefore, everyone should develop a good habit of not spitting everywhere.

If there is phlegm, spit it into the spittoon, and the spittoon should be cleaned regularly every day. In places where there is no spittoon, the spit should be wrapped in waste paper and then thrown into a wastebasket or trash can. Consciously refrain from spitting and maintain the hygiene of public places.

3. Don’t cough or sneeze on others: Coughing and sneezing are normal human physiological phenomena and are not surprising. However, it is unhygienic and impolite to sneeze in front of other people or food without paying attention to the occasion.

According to surveys, a cough can eject 20,000 very small droplets, and a sneeze can eject nearly 1 million droplets. Moreover, the droplets are ejected very quickly, and can fly 4.6 meters in less than 1 second, and can reach 9 meters with a favorable wind.

The nasal cavity and throat are one of the places where bacteria and viruses live most densely, and the sprayed droplets contain a large number of bacteria and viruses. A sneeze can exhale up to 85 million germs. These tiny droplets can float and swim in the air for a long time. In a windless room, they can float for 30-60 minutes, and the floating time can be up to 30 hours.

After the water in the droplets evaporates, bacteria and viruses fly with the dust, continuing to harm people's health.

Among the notifiable infectious diseases in my country, 15 are airborne (such as influenza, measles, chickenpox, mumps, mycoplasma pneumonia, etc.).

Therefore, for everyone’s health, you should pay attention to courtesy and hygiene when coughing and sneezing. Especially people with respiratory infectious diseases should pay more attention to it consciously. If you cannot help but sneeze in front of people or food, you should immediately take out a handkerchief or facial tissue and cover your mouth and nose.

If it is too late, turn your back to other people or food, and cover your mouth and nose with your hands. 4. Don’t smoke: Smoking is harmful and has no benefits, which has been recognized by the scientific community around the world.

Tobacco smoke contains more than 3,000 harmful substances. The main ones include nicotine (nicotine), tobacco tar, fluoric acid, acrylic acid and carbon monoxide.

Nicotine is a toxic substance. Cigarette tar contains nitrosamines, phenols, arsenic and radioactive isotopes. These are carcinogens or carcinogens, especially benzopyrene, which is recognized as a strong Carcinogens. According to statistics, people who smoke 40 cigarettes a day have a 70 times higher incidence of lung cancer than non-smokers.

In addition, smoking is also closely related to lip cancer, throat cancer, esophageal cancer, stomach cancer, etc. Smoking can promote the development of systemic arteriosclerosis and hypertension, so smokers have higher morbidity and mortality from cardiovascular and cerebrovascular diseases than non-smokers.

In addition, smokers are prone to colds, rhinitis, sinusitis, tracheitis, bronchitis, emphysema, etc. There are also studies showing that smoking is related to male impotence.

Some people say that smoking can refresh you and improve work efficiency.

Actually, this is a misunderstanding. Modern medical research believes that nicotine has a dual effect on the central nervous system, that is, it excites first and then inhibits it.

Therefore, for people who smoke heavily for a long time, the excitation and inhibition processes in the cerebral cortex are out of balance, and instead they suffer from fatigue, insomnia, memory loss, distraction, and reduced work efficiency. Many smoking-related diseases have a long incubation period and are not as rapid as the reactions to highly toxic substances.

Therefore, in a short period of time, people often cannot see his harm. Sometimes it can take decades from the onset of smoking to death.

This is also the main reason why ordinary people have insufficient awareness of the dangers of smoking. There are about 200-300 million smokers in our country, accounting for more than 1/5 of the country's population and 1/4 of the 10-1200 million smokers in the world. Not only does it consume a lot of money every year, but it also consumes a lot of money for the country and individuals many years later. An unimaginable amount of money is invested in treating the various diseases caused by smoking.

At present, European and American countries have seen the huge harm of smoking, in terms of law, economy and politics.

8. Love the campus and care for hygiene in 50 words

Hello everyone!

I am xxx from class xx in grade xx. Today, the title of my speech is "Clean the Campus and Protect the Environment."

My classmates, spring returns to the earth and everything revives. The grass has sprouted, the trees have turned green, and the students have put on light, bright-colored single clothes. There are bright figures flashing everywhere on our campus. Look, how beautiful our campus is! A beautiful environment brings people beautiful enjoyment, and a beautiful environment makes people feel relaxed and happy. Reading and studying in a beautiful environment is a kind of joy, and it is also a kind of happiness!

Writers say: the environment is the harbor of the soul; painters say: the environment is the source of inspiration; military strategists say: the environment is the magic weapon for victory; educators say: the environment is the cradle of shaping people. Our students said: The environment is an important condition to ensure our learning.

Students, we all know how important the environment is to us. However, food bags of various colors are flying on the playground of our campus; pieces of paper are lying in the stairwells of our campus; carefree drink bottles are sleeping among the flowers on our campus; water bottles on our campus are However, the bridle often keeps flowing... As the ancients said: Don't do good deeds because they are small, and don't do evil because they are small.

And aren’t the various phenomena that appear on campus just the little uncivilized things we do inadvertently?

Students, when we sow an action, we will reap a habit; when we sow a habit, we will reap a character. The movements of each of us convey a wealth of civilized information. Let us start from now, start from ourselves, start from little things, develop good civilized habits, and be civilized students. Control our mouths and don’t spit; control our hands and don’t litter; control our feet and don’t trample on flowers and plants... I believe that we, the flowers of our motherland, will definitely create a peaceful and peaceful place for ourselves. Preface, a campus with a beautiful environment!

My speech is over, thank you everyone!

9. Please help me find some common sense about civilization

1. Promote respect for the elderly and love the young

Respect the elderly: ① Respect and protect the elderly legitimate rights and interests, prohibiting discrimination, insult, abuse or abandonment of the elderly: ② Respect their living habits, understand their spiritual requirements, and create a harmonious and friendly family atmosphere; ③ Care for and considerate the elderly, with special attention to care and help A lonely old man.

Child-loving: ① Strengthen the education of loving the motherland, loving the people, loving labor, loving science, and loving socialism;

② Organize and participate in various moral practice activities; ③ Protect minors ③ Prevent and overcome spoiled children and guide them to grow up healthily.

2. Civilized and polite cross words: please, hello, thank you, sorry, goodbye. Civilized and polite cross language is the lubricant of harmonious interpersonal relationships and a concrete embodiment of the spiritual civilization of the Chinese nation.

3. Seek medical treatment in a civilized manner

① Observe hospital regulations and maintain normal order;

② Consciously queue up for registration and actively cooperate with medical treatment;

③Respect doctors' work and do not insult, curse or beat medical staff;

④Do not smoke, spit or make loud noises in the hospital.

4. Carry out civilized shopping

① Observe the order of the mall, do not crowd, do not bump into each other, and do not make loud noises;

② Take care of the products in the mall and handle them gently when selecting Handle with care;

③Do not take advantage of others or steal items from shopping malls;

④Be polite to others and use civilized language.

5. Our festivals refer to: Spring Festival, Lantern Festival, Dragon Boat Festival, Qingming Festival, and Mid-Autumn Festival.

10. Hygiene knowledge

1. What personal hygiene habits should primary school students develop? (1) Wash your face in the morning and evening (2) Brush your teeth in the morning and evening (3) Wash your hands before meals and after using the toilet (4) Wash your feet before going to bed (5) Wash your hair frequently (6) Take a bath frequently (7) Cut your nails frequently (8) Eat raw fruits and melons Wash your hands (9) Don’t drink boiled water (10) Don’t lie down and read 2. Under what circumstances should you wash your hands? (1) Wash your hands before eating and after using the toilet (2) Wash your hands before eating (3) Wash your hands after working (4) Wash your hands after playing games (5) Wash your hands after touching dirty things (6) Contagious by touch You should wash your hands after handling the patient's things (7) You should wash your hands after returning from a public place (8) You should wash your hands before handling dishes and chopsticks 3. When writing and reading, what should be the distance between the eyes and the book? 30-35 centimeters, or about one foot.

4. Why should you get a haircut in time and wash your hair frequently? Haircuts and shampoos can remove dirt, dandruff, and germs from the hair and scalp, prevent tinea capitis, skin diseases, and prevent head lice. 5. Why can’t you drink raw water? Raw water contains bacteria and eggs, which can cause intestinal infectious diseases (enteritis, dysentery, typhoid, etc.) and intestinal parasites (ascariasis, etc.).

6. Why can’t you eat spoiled food? Spoiled food contains a large number of germs and toxins, which can cause food poisoning, enteritis, and dysentery after eating, manifesting as: nausea, vomiting, abdominal pain, diarrhea, and even life-threatening in severe cases. 7. What are the harms of picky eaters and partial eclipses? Picky eaters and picky eaters can cause a lack of nutrients, lead to malnutrition, and affect growth, development and health.

8. Why is it not advisable to engage in strenuous activities immediately after a meal? I had just eaten and my stomach was full of food. Strenuous exercise affects normal gastrointestinal digestion and can cause abdominal pain, nausea, vomiting, etc. Over time, it can also cause indigestion and stomach problems.

9. What should you pay attention to when reading and writing? The posture should be correct, the lighting should be appropriate, the distance between the eyes and the book should be about one foot, and the time should not be too long. Do not read when walking or riding in the car. 10. What are the benefits of doing eye exercises? Eliminate eye fatigue, protect vision, and prevent myopia.

11. How many times should you brush your teeth every day? When to brush? You should brush your teeth twice a day, once in the morning and once in the evening. 12. How to protect teeth? (1) Rinse your mouth after eating (2) Brush your teeth in the morning and evening (3) Do not bite into hard objects (4) Do not eat things that are too cold or hot (5) Do not eat before going to bed (6) Treat dental disease promptly 13. Why not Biting pens and fingers? (1) The pen tip and fingers are not clean (containing bacteria, insect eggs, dust, etc.), which can cause diseases (2) Affect the development of teeth and fingers 14. How to prevent pesticide poisoning? (1) Do not play with bottles, pockets and pesticide sprayers that have contained pesticides (2) Avoid inhaling pesticides through the mouth or nose (3) Prevent pesticides from contaminating the skin. If the skin is contaminated with pesticides, rinse them in time (4) Wash fruits and vegetables. 15. Why can’t you pick your ears at will? Picking the ears is an unhygienic habit that can easily damage the external auditory canal, cause inflammation or boils, and may also damage the eardrum, cause otitis media, and cause hearing loss.

Even cause deafness. 16. How to prevent ascariasis? (1) Wash your hands before meals and after using the toilet (2) Do not drink raw water (3) Eat raw fruits and vegetables, and wash them thoroughly (4) Do not bite your fingers or pens 17. How to prevent trachoma? (1) One face towel for each person (2) No need to rub your eyes with dirty hands (3) Keep handkerchiefs, towels, and washbasins clean (4) If possible, it is best to have a dedicated washbasin for each person 18. What are the harmful effects of spitting? Spitting is an uncivilized behavior: sputum contains germs, and spitting will pollute the environment and spread diseases.

19. What do the “four evils” refer to? Flies Rats Mosquitoes Cockroaches 20. What should you do after being bitten by a dog? Go to the hospital or health center for treatment immediately and get the rabies vaccine promptly. 21. How much sleep should primary school students get at least every day? 10 hours 22. What diseases can flies and mosquitoes spread? Flies spread: enteritis, dysentery, typhoid, hepatitis A, etc.

Mosquito-borne: Japanese encephalitis, malaria. 23. What is the main transmission route of hepatitis? Hepatitis A: Mainly transmitted through patient feces contaminating water sources and food. Hepatitis B: Mainly transmitted through blood and blood products.

24. Why can’t you defecate anywhere? (1) Pollution of the environment (2) Spread of diseases (3) Uncivilized 25. Why does each person need a toothbrush when brushing his teeth? Prevent each other from transmitting diseases 26. How to prevent colds? (1) Exercise and improve your physical fitness (2) Open windows frequently for ventilation (3) Add or remove clothes as the climate changes (4) Do not visit patients’ homes (5) Do not go to public places when colds are prevalent 27. At home What should I do if I have hepatitis patients? (1) Treat in time (2) Isolate and disinfect (use boiling water to boil the dishes, towels, clothes used by the patient. Use disinfectant to wipe the furniture used by the patient, etc.) (3) Wash hands after contact with the patient (4) Do not eat the patient Leftovers 28. How to keep the classroom clean and hygienic? (1) Sweep the floor every day and sprinkle water before sweeping the floor (2) Wipe tables, chairs, doors and windows frequently (3) Do not throw paper scraps and peels (4) Do not spit (5) Place tables and chairs neatly (6) Pay attention to ventilation 29. What should be done to maintain public health? (1) Clean the indoor and outdoor environment (2) Do not spit (3) Do not litter with paper scraps or peels (4) Do not defecate anywhere (5) Do not graffiti on the walls, tables and chairs.