In today's society, three meals a day is essential for people. But because of three meals a day, there are things that are necessary for our bodies on the dining table, which are harmful to our health, from food poisoning to death.

Therefore, it is necessary to guide students to learn some knowledge about food safety, so that students can understand the importance of safety and make choices and identifications when buying food. So as to establish safety awareness, stay away from potential safety hazards psychologically, strengthen the cultivation of their own quality, and let students grow up safely and healthily.

Teaching objectives:

1, through the introduction of food poisoning accident cases, let students realize the importance of food safety through discussion and other forms.

2, through this class meeting activities, enhance food safety awareness, learn to choose and identify food, so as to grow up healthily.

Teaching preparation:

Ppt, prepare corresponding graphic materials.

Teaching process:

First, stimulate dialogue.

When swine flu virus is rampant all over the world, how should we effectively curb germs and prevent the invasion of influenza virus in this flu-prone season? Experts believe that the transmission route of swine flu is similar to seasonal flu. Usually infected objects are touched by hands and then enter the body through the nose and mouth. Therefore, it is necessary to enhance food safety awareness and prevent diseases from entering the mouth.

As the saying goes, food is the most important thing for people. Three meals a day is very important to people's lives. So, classmates, when you usually enjoy all kinds of children's food, have you considered the safety issue? Today, we will talk about food safety in this class.

Second, get inspiration.

(A) Case analysis

On the afternoon of March 20th, 20xx, 1, some students in Heping Primary School, Gardener Primary School and Primary School affiliated to Teachers' College in Jixi City suffered from food poisoning due to eating lunch boxes provided to restaurants by Honghu Nutrition. After investigation, Honghu Nutrition sent people to the restaurant to process cold dishes without authorization, and the raw and cooked food utensils and tools were mixed, which led to the contamination of cold pine tofu by Proteus in the processing process, and the contamination of other foods in the packaging and transportation process to varying degrees, causing food poisoning.

2.20xx On the morning of March 30th, a child food poisoning incident occurred in Little Doctor Kindergarten on the right side of the gate of No.46 Factory of zhangwan district Dongfeng Company in Shiyan, Hubei. As of March 3 1 day, 135 people had symptoms of poisoning, including children 128 people and 7 staff members, among whom children 10 people had severe symptoms. The local health department diagnosed nitrite food poisoning.

First, student exchanges

B, teacher summary

C. students talk about food safety accidents in their lives.

Group report: mainly markets, supermarkets, shopping malls, restaurants, street stalls (students talk about the following aspects:

The table of kebabs and sausages is dark and dirty, and the food is covered with flies and dust.

Machines that make marshmallows are all dirty, and dirty things fall in from time to time. The seller himself is very dirty and doesn't pay attention to hygiene at all.

③ Bagged food has no clear origin and trademark, and some of them have passed the shelf life. Some hotels have extremely poor kitchen hygiene.

Third, understand the characteristics of food poisoning

1. All the poisoned people have eaten some food suspected of being poisoned in a similar time.

2, the incubation period is short, the onset is urgent, and the course of disease is short.

3. The general clinical manifestations of the poisoned person are acute gastroenteritis, such as abdominal pain, diarrhea and vomiting.

Fourth, know the types of food poisoning.

Food poisoning is mainly divided into bacterial food poisoning, animal and plant food poisoning and chemical food poisoning.

1, bacterial food poisoning: meat, fish, eggs, milk, cold dishes, leftovers and other food poisoning easily contaminated by bacteria and moldy.

2. Animal and plant food poisoning: poisoning caused by poisonous animals such as puffer fish, shellfish and fish, poisoning caused by poisonous plants such as poisonous mushrooms, beans and toadstools, free gossypol in plants containing cyanosides and cottonseed oil.

3. Chemical food poisoning: heavy metal, nitrite and pesticide poisoning. Vegetables and fruits contaminated by pesticides, seafood and shellfish contaminated by toxic algae, etc.

Five, how to strengthen food safety awareness in daily life

It seems that food safety has become a major issue affecting human health and international people's livelihood. Our country also attaches great importance to it and has taken some measures. Please have a look. (Show students pictures to explain, or show corresponding policies), so what should be paid attention to in food safety?

1, develop good hygiene habits. Wash your hands before and after meals to prevent illness from entering your mouth. For example, if the hands are stained with pathogenic bacteria and then food is taken, the contaminated food will enter the digestive tract, leading to bacterial food poisoning.

Don't buy food from vendors without hygiene license.

3. Choose fresh and safe food. When buying food, we should pay attention to check whether there is corruption or deterioration. Check its production date and shelf life. Can't buy expired food and products without factory name and address.

Food should be thoroughly washed before eating. Wash raw fruits and vegetables. Fruits and vegetables will not only be infected with germs, viruses and parasite eggs, but also remain pesticides and insecticides. If it is not cleaned, it may not only infect diseases, but also lead to pesticide poisoning. Bean and soybean milk contain saponins and other toxins, and incomplete heating will cause poisoning.

5. Try not to eat leftovers. Heat it thoroughly if you want to eat it. Leftover meals, desserts, milk, etc. They are all good media for bacteria, and incomplete heating will cause bacterial food poisoning.

6, don't eat moldy food, sugar cane, peanuts (there is mildew on food), which mycotoxin can cause poisoning.

7. Be wary of eating toxic and harmful substances by mistake. Containers containing disinfectants, pesticides or rodenticides must be properly disposed of after use to prevent poisoning due to drinking water or misuse.

8. Drinking drinking water that meets the hygiene requirements. Don't drink raw or unclean water. It is best to drink boiled water.

9, advocate physical exercise, enhance the body's immunity, resist the invasion of bacteria.

6. If you really feel sick, so what?

1. Stop eating suspicious food immediately.

2. drink water. Drink plenty of water immediately to dilute the toxin.

3. Vomiting. Put your finger to your throat and spit out the food in your stomach as much as possible.

4. Keep the vomit or feces in plastic bags and send them to the hospital for examination, which is convenient for diagnosis.

5, dehydration symptoms (such as skin wrinkling, increased heart rate, etc. ), should be sent to a nearby hospital as soon as possible.

Seven, the teacher summarizes the full text.

Teacher: Students, through this lesson, we all know that eating unhealthy food will affect our health. The students also expressed their determination not to buy snacks indiscriminately in the future.

Through discussion, we know how to buy safe food and practice how to wash our hands. I hope every student can form a good habit of speaking hygiene, which will make our bodies healthier and our brains smarter.

The whole class recited weight-loss songs together.

Salt vinegar is good at resisting virus and diminishing inflammation, and leek tonifies kidney and warms knees and waist.

Radish eliminates phlegm and flatulence, celery lowers blood pressure.

Pepper dispels cold and dampness, and onion and ginger soup cures colds.

Garlic inhibits gastroenteritis, and mung beans are the best for relieving summer heat.

Pears moisten the lungs and resolve phlegm, strengthen the stomach and kidney, and eat red dates.

Tomatoes nourish blood and nourish skin, and eggs are nutritious.

Peanuts can lower cholesterol, melons and beans can reduce swelling and diuresis.

Fish and shrimp can supplement milk and improve the vision of animal liver.

Produce fluid to soothe the nerves, count dark plums, moisten the lungs and blacken hair, and eat walnuts.

Honey moistens the lungs and resolves phlegm, and grapes delight young people.

Bananas relieve constipation, relieve stomach fire, and apples relieve diarrhea with high nutrition.

Kelp contains both calcium and iodine, and mushrooms inhibit cancer cells.

Chinese cabbage diuretics excrete toxins, and cauliflower often causes cancer by eating less.