1. Assess your health as comprehensively as possible and pay attention to your health.
2. Be able to keep a happy mood in study and life.
3. Recognize the harm of drinking and smoking to human health and the importance of choosing a healthy lifestyle.
Emphasis and difficulty in teaching
1, fully understand the concept of health.
2. Learn the skills of adjusting emotions and maintaining mental health.
3, can say the concept of health; Influence of lifestyle on health; The content and function of healthy lifestyle.
teaching process
First, preview before class and explore in cooperation.
1. Complete the P89-90 project test and see how many points you can get. How is your health?
What questions are used in the test to evaluate physical health? What topics are used to evaluate mental health? What topic is used to evaluate social adaptation?
According to the definition of health by the World Health Organization, health refers to the state of physical and mental health, not just the absence of disease.
3. A healthy life not only needs to strengthen the power of _ _ _ _ _ _ _ _ _ _ _ _.
4. Keep a happy mood
(1) The core of children and adolescents' mental health is.
(2) The positive and healthy mentality of children and adolescents is
(3) the method of adjusting your emotions _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.
Two. Expand innovation
Use the knowledge and methods learned in this section to evaluate the health status of family members or relatives and put forward suggestions for improvement.
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(2) Non-multiple choice questions
1. According to the definition of health by the World Health Organization, health refers to the state of physical and social well-being, not just the absence of disease.
2. The core of children's mental health is. Good and moderate means that children and adolescents are in a positive state of health.
3. Both teachers and classmates think that Xiao Nan is a truly healthy person with excellent academic performance, because he is: ① emotionally stable all the time; Get along well with anyone; ③ All the sports scores are up to standard; ④ It can successfully adjust the stress in daily life and adapt to the environment reasonably; ⑤ Have good physical fitness; ⑥ Can actively participate in group activities and strive for class honor.
These performances belong to good health; What belongs to mental health is; What belongs to social adaptability is.
Second, preview before class
1, self-test:
According to the meaning of health, the World Health Organization has formulated the 10 health standard:
(1) Full of energy, able to undertake daily life and heavy work calmly without feeling too nervous and tired.
Optimistic, positive, willing to take responsibility, regardless of size, not picky.
Be good at rest and have a good sleep.
(4) strong adaptability, can adapt to various changes in the external environment.
(5) It can resist the common cold and infectious diseases.
⑥ Proper weight, well-proportioned figure, and coordination of head and shoulders when standing.
⑦ Bright eyes, quick reaction and no inflammation in eyelids.
8 teeth clean, no dental caries, no pain, normal gum color, no bleeding.
Pet-name ruby hair shiny, no dandruff.
Attending muscle fullness, skin elasticity.
The above item 10 reflects three aspects of health: physical and mental health and social adaptability. To be healthy, you must have a healthy lifestyle.
2. Q: What is a lifestyle?
3. Summary of discussion: Lifestyle refers to various habits that people follow in their daily lives, such as eating habits, living habits, daily life arrangements, ways of entertainment, and participation in social activities.
Third, cooperative exploration.
Learning task 1: Understand the influence of lifestyle on health.
1. What information do you collect about unhealthy lifestyles and their hazards in your spare time?
2. Pass the information collected by yourself to the students in the group.
Do you know which lifestyles threaten people's health in modern social life, and why? Please read Data Analysis in textbook P94 with questions, and discuss in groups with the following two discussion questions.
Data analysis: 1957 and 1999, the mortality rate of the top seven diseases in China.
Discussion: (1) What changes have taken place in the main diseases that caused the death of urban residents in China in the past 40 years?
(2) Why are these changes happening? What do these changes mean?
4, combined with data, list specific cases in real life. Then read the first and second paragraphs of the textbook P95 with your classmates.
5. Summary: In modern society, diseases affecting people's health have changed, and lifestyle has become the main factor affecting health.
6. Inquiry activity: Explore the influence of alcohol or tobacco extract on the heart rate of Daphnia.
Make an exploratory experiment plan in groups.
Experimental guidance: This experiment looks simple, but there are many details worthy of attention and attention when doing experimental steps and specific operations. For example, what kind of alcohol concentration to choose, the position of Daphnia's heart, the counting of heart rate, the choice of experimental group and control group, etc. In the experiment, each group of students chose more than three control experiments, namely the heart rate of Daphnia in clean water and the heart rate of Daphnia in alcohol solution with a certain gradient. Each group should have a certain number of experiments, get the average value, and then analyze the phenomenon from the average data of these groups and draw a conclusion. If we choose the tobacco extract to affect the heart rate of Daphnia, we should pay attention to soaking a brand of cigarette tobacco with different volumes of water before the experiment.
Expression and communication: the process and method of inquiry activities, and the design of statistical tables.
7. Report the process, methods and results of inquiry activities, and discuss two topics in textbook P96.
Study Task 2: Choose a healthy lifestyle.
1. According to my own investigation results, it shows that drinking and smoking have caused serious harm to human health.
2. Projection display materials:
When people drink alcoholic beverages, alcohol is directly absorbed into the blood in the stomach and upper digestive tract, and the absorption rate is positively correlated with the volume fraction (concentration) of alcohol. Before alcohol is finally decomposed, it can act on many organs and tissues, especially the cardiovascular system, making the heart beat faster. Blood pressure rises and skin blood vessels dilate. Excessive drinking is alcoholism and will lead to alcoholism. Acute alcoholism, also known as "drunkenness", can lead to death in severe cases. Chronic alcoholism is mainly manifested in the damage to gastrointestinal tract, liver and nervous system. Alcohol can also make fat accumulate in the liver, and excessive drinking can lead to fatty liver. Therefore, people who drink too much have higher morbidity and mortality of cirrhosis.
Smoking is one of the important reasons that affect the health of respiratory system. There are hundreds of smoke components produced by tobacco combustion, among which nicotine, carbon monoxide and smoke tar are obviously harmful. In recent decades, the incidence of lung cancer in China has risen sharply, and about 80% of lung cancer patients are caused by long-term smoking. When smoking, only about 10% of tobacco smoke is inhaled by smokers, and the remaining 90% is scattered in the air. These smog not only pollute the environment, but also make non-smokers smoke passively and suffer indirectly. The harm of smoking has attracted the attention of all countries in the world. The United Nations has designated May 3 1 day as World No Tobacco Day every year.
Drug abuse is more harmful to human body. Drug abuse will damage people's nervous system, reduce people's immune function, and cause cardiopulmonary injury, respiratory paralysis, and even death. Drug addicts do not hesitate to cheat or steal in order to pay huge drug expenses, which seriously harms society. Teenagers are in the period of growth and development, and drug abuse is more harmful to the body.
3. The above materials show that a bad lifestyle has done great harm to human physical and mental health. What should we do if we want to be healthy?
4. Discuss in groups: Which lifestyles are healthy in life? Which lifestyles are unhealthy?
5. After the discussion, each group will send a student representative to report the discussion of the group to the whole class, and the students in the same group can make supplements if there are any imperfections.
6. Teachers and students should sum up what kind of lifestyle they should choose to be healthy. Good nutrition and diet, physical exercise, regular work and rest, no smoking, no drinking, refusal of drugs, active participation in group activities, etc. )
7. Supplement: Students' unscientific lifestyle will affect their health.