First, ask questions. As the saying goes: "Look at the eyes and know each other. A pair of eyes represents a person's character, intelligence and will. " Only when each of us has healthy eyes can we study better; Only when each of us takes good care of our eyes can we work better and see the whole world better ... but after my recent observation, it is not difficult to find that many people, especially students, are nearsighted, and people in our class are not immune.
Second, the survey method
1, consult relevant books, collect online, ask others and collect information.
2. Investigate or ask students to understand the myopia of class students and the main reasons and problems that cause myopia.
Three. Investigation and data collation
Information channel: investigation and interview
Aspects involved: the current situation of the class
Specific content: There are 43 "members" in this big family in our class. Among them, our members' myopia rate is as high as 77%, and they all suffer from "myopia infectious diseases". After my investigation, among these 77%, 64% are boys and 0/3% are girls.
Causes of myopia: When reading a book, students can't grasp the distance between their eyes and the book well (very close, very close); Members are also addicted to electronic products and play games; Others stare at TV for a long time.
conclusion
1. After investigation, most students in our class don't pay attention to protecting their eyes, which leads to more and more students.
2. The main reasons for students are as follows:
① The reading method is incorrect.
② The reading posture is incorrect.
③ Playing electronic products for a long time.
④ When reading books and playing electronic products, the distance is too close.
3. Recommendations:
Keep doing eye exercises for ten minutes every day; Exercise more; See more green plants; Play less electronic products and protect our windows.
2. Excellent composition of 500 words in research report composition
First, ask questions. In recent years, the number of nearsighted people in our class has increased. Many students are nearsighted and don't wear glasses. Some students don't even know if they are nearsighted. I think, how can there be so much myopia in primary schools?
Second, the survey method
1. Go online to find out the myopia rate of primary school students in recent years.
2. Investigate and ask students to understand the causes of myopia.
Through my own observation, I know the approximate number of myopia in my class.
4. How to better protect eyesight and prevent myopia?
Third, investigation and data collation.
There are about 20 nearsighted people in our class. The number of nearsighted people in China is close to 400 million. The myopia rate of primary school students is 22. 1%, that of junior high school students is 55.8%, that of senior high school students is 70.3%, and that of college students is as high as 80%. The higher the grade of primary school students, the more nearsighted they are. Most students' unsanitary eyes are the main cause of myopia.
Fourth, analysis and discussion.
Nowadays, the social competition is very fierce. Many students' eyes are too tired, which leads to myopia, and a large number of students are caused by playing computer and watching TV for too long and not paying attention to rest. In addition, heredity and environment are also one of the factors leading to myopia.
Verb (abbreviation of verb) Suggestions and measures
1, I hope everyone will pay attention to rest and increase sleep.
2. Take more rest and do some long-distance movements during the break.
3. Do eye exercises seriously.
4. Make diagnosis and treatment as soon as possible after suffering from myopia.
5. Watch less TV and computer and watch more green and natural.
The eyes are the windows of the soul and one of our most important organs. Everyone must pay attention to myopia. Take good care of it and make our life more colorful.
3. Excellent composition of 500 words in research report composition
First, the question puts forward that Chinese characters have a long history and contain rich culture. We usually read books, articles and newspapers without Chinese characters. I can't help thinking: what is the evolution process of Chinese characters? What fonts are there? What are the characteristics of each font? With these questions, I made some research reports.
Second, the survey method
1, consult related books.
2. Search online.
3. Ask the teacher.
Third, data collation.
Information channel: go online and ask the teacher.
The most famous characters: Oracle Bone Inscriptions, inscriptions on bronze, seal script, official script and regular script.
Historical background: Oracle Bone Inscriptions is a pictographic font carved on tortoise shells or animal bones in Shang and Zhou Dynasties. Bronze inscriptions are fonts carved on bronzes in Shang and Zhou Dynasties. Xiao Zhuan is the earliest unified font. Regular script has been used to this day.
Calligraphy features: Xiao Zhuan, the font is slightly long and neat, and the strokes are round and beautiful. Official script, with exquisite structure, thick lines and rich changes. Regular script, square, neat and straight strokes.
Four. Research conclusion
1, Chinese characters in China have a long history, and there are many characters, such as seal script, regular script and running script. ...
2. Chinese characters have a long history in China, such as Oracle Bone Inscriptions, and they are still being studied and understood.
3. Ancient calligraphers in China left many calligraphy works, such as Preface to Lanting by Wang Xizhi, Fu on the Red Wall by Su Shi and Shu Su Tie by Mi Fei.
After this study, I deeply realized the greatness, practicality, art and tolerance of Chinese characters. ...
4. Research report composition 500 words excellent composition
I. Research Background Recently, there has been another drought in southwest China. Not to mention planting crops, it is difficult to guarantee the water that people drink. I always find it incredible. Isn't water the most abundant thing on earth? Aren't there so many rivers, lakes and seas? How can there be water shortage!
Later, I looked up information about water resources on the Internet, and I realized that water is the source of all life on earth. The total amount of water on the earth is 18 trillion liters. This amount seems to meet the global population's demand for water resources, but the actual situation is not optimistic. Of the existing water reserves, 99% are seawater and polar ice unsuitable for human use, and the remaining 1% is mostly in the stratum below 800 meters. The water in rivers and lakes that people depend on only accounts for 0.0 1% of the total. There are 18 countries in the world whose per capita renewable water resources are insufficient 1000 cubic meters. According to a report by the World Resources Institute, there are 3.4 billion people in the world who can only get 50 liters of water every year on average, which shows that mankind is facing a crisis of fresh water shortage.
Our hometown is located on the bank of the Yellow River. Although water resources are abundant, most of them are seawater, which is salty and can't be drunk directly. Most of the fresh water we drink every day is distributed in the cold north and south poles of the earth and the mountainous areas with snow all year round, so there are few fresh water resources left and they are unevenly distributed. There are many places short of water. Therefore, the domestic and production water flowing to our hometown is even scarcer. With the rapid development of urbanization and industrialization in our hometown, rivers and lakes on which we depend are facing more and more pollution threats. The water crisis has sounded the alarm for us!
Second, the purpose of the study
(1) Let's know about the present situation of water pollution in our hometown and the significance of protecting water resources.
(2) Let students know the harm of water pollution, and let them care about and protect the water resources in their hometown.
(3) Cultivate students to love their beautiful hometown, society and nature, and form a good habit of saving water from childhood.
(4) Improve students' ability to go deep into society, care about society and integrate into society.
Third, the research process
(1) Research time: April 20th, XXXX.
(II) Research location: Kanhe River and Zhongshanhe River Basin in XXXX Town.
(c) Research methods: elder interviews and field visits.
(4) Members of the research group:
Team leader: Miss Wang
Team leader: Yang Xueqi
Members: Three groups of students in Class 5, XXXX Experimental Primary School.
Fourth, research results.
Ten years ago:
Color of water: colorless; Uses of water: domestic water and agricultural water; River size: general size; Floating objects on water: aquatic plants and other aquatic plants.
Now:
Color of water: mostly black; Uses of water: domestic water, agricultural water and industrial water; River size: many rivers narrow and the riverbed rises; Floating objects on water surface: white garbage, domestic garbage, etc.
Analysis of the main causes of verbs (abbreviation of verb)
(A) residents' awareness of environmental protection is not strong. Many residents throw domestic garbage into the river at will.
(2) As farmers use more and more chemical fertilizers and pesticides in the planting process, the water quality is getting worse and worse.
(3) Wastewater from some factories is directly discharged into rivers without sewage treatment, which leads to the deterioration of water quality and the extinction of aquatic plants.
Advising intransitive verbs
In view of the polluted water resources in my hometown, I would like to make the following suggestions:
(a) make full use of radio, television, Internet and other media, strengthen the publicity of the significance of water resources protection, so that environmental awareness is deeply rooted in the hearts of the people.
(two) to promote residents to save water, promote water-saving equipment, and minimize the use of chemical products in daily life.
(3) Encourage farmers to reduce the use of pesticides and fertilizers as much as possible, and change planting varieties and drought-tolerant plant varieties.
(4) When factory sewage needs to be discharged, it must be treated and discharged up to standard.
(5) It is hoped that the government will strengthen environmental protection management, increase investment in environmental protection, formulate a series of laws and regulations to protect water resources, and impose strict restrictions and regulations on wastewater discharge, so as to escort the construction of green homes.
Feeling:
5. Excellent composition of 500 words in research report composition
1. Question: According to the survey, there are more than 5 million blind people in China, and there are nearly10 million patients with low vision, especially children and adolescents, with a very high prevalence rate. According to the latest data from the national student physical health survey, the incidence of myopia in primary school students, middle school students and high school students in China is 22.78%, 55.22% and 70.34% respectively. What's even more shocking is that a survey report says that there are more than 300,000 people who are blind due to high myopia in China. Therefore, students, parents and society pay more and more attention to the prevention and treatment of myopia in children and adolescents. How many myopia students are there in our class? Why are those nearsighted students nearsighted again? How to prevent myopia? Is it just caused by bad eye habits? In order to understand the myopia of primary school students and the related factors that cause myopia, our group investigated and analyzed the myopia of our class.
Two. Investigation method:
1. Self-observation record.
2. Investigation visit.
3. Excerpts from books and newspapers.
4. Use the Internet to search.
Three. Investigation and data collation:
1. At present, two people in our class are nearsighted, accounting for about 4.2% of the class. The fundamental reason is that they usually don't care for their eyes and pay attention to the prevention of myopia.
2. There are many reasons for myopia, including genetic factors, environmental factors, individual factors, nutritional factors and sleep factors. The main causes of myopia in primary school students are not paying attention to protecting their eyes, incorrect reading and writing posture, improper lighting, insufficient sleep, excessive watching TV and playing computer, and consuming a lot of protein.
Myopia is also called myopia, because this kind of eyes can only see near but not far. When the eyes are at rest, the parallel light from infinity is refracted by the refractive system of the eyes and then converged into a focus on the retina, forming an unclear image on the retina. Hyperopia is obviously reduced, but myopia is still normal.
Four. Conclusion:
(1) The main causes of myopia:
1, watching TV is too close to the computer and takes too long;
2. The concentration of the TV screen is too deep;
3. Incorrect reading and writing posture;
4. Read and study in the sun with too strong or too weak light;
5. Sitting in front of the computer and TV for a long time;
6. Unreasonable diet;
7. read books in turbulent places such as carriages;
8. I don't do eye exercises seriously, and I don't have the consciousness to protect my eyes;
9. Genetic factors.
(2) The methods to prevent myopia are:
1, sit up straight and get plenty of light when reading. Reading and writing are one foot away from the desk, beating your chest away from the desk, and keeping your eyes away from the textbook.
2. Keep doing eye exercises twice a day.
Try to surf the Internet or watch other radioactive things as little as possible. Pay attention to the schedule and don't let your eyes be tired for a long time.
4, reasonable diet, pay attention to nutrition.
5. Improve the learning environment: regularly check whether the lighting and lighting of the learning environment are sufficient, and take corresponding measures.
6. Check your eyesight regularly.
7. After watching TV for half an hour, rest for at least 5- 10 minutes. Don't lie down and watch TV.
No matter where you are, you must remember to protect your eyesight and take good care of your eyes, because "eyes are the windows to your soul". You can't see a colorful world without them. Let beautiful eyes accompany us all our lives!
6. Excellent composition of 500 words in research report composition
Ask questions first. Recently, students are writing calligraphers' cursive scripts and some are practicing calligraphy. What is the history of Chinese characters? What calligraphers are there? Whose handwriting is the best?
Second, research methods.
1, for information.
Step 2 read and collect books
3. Other methods
Third, data collation.
History of Chinese Characters: Oracle Bone Inscriptions is the earliest Chinese character, which was discovered by the late Qing Dynasty King. He suffered from malaria, and an old Chinese doctor prescribed him a medicine called "keel". This large and small "keel" found by Wang is engraved with some symbols. He likes ancient Chinese characters, and has been collecting this thing, scrutinizing and piecing it together, and found that it was discovered by Oracle Bone Inscriptions and Oracle Bone Inscriptions in the Shang Dynasty. Later, he discovered the bronze inscriptions in the Western Zhou Dynasty, also known as Zhong Dingwen, and the seal script in the late Western Zhou Dynasty. Xiao Zhuan is a unified font issued when Qin implemented official script. Lishu originated in Qin Dynasty and prevailed in Han Dynasty. Regular script came into being at the end of Han Dynasty, also known as real script and official script. It prevailed in Wei, Jin, Southern and Northern Dynasties and matured in the Tang Dynasty. Regular script, cursive script and running script have been used to this day.
Calligrapher: Our calligraphers are Yan Zhenqing, Wang Xizhi and Liu Gongquan.
Calligrapher's handwriting: Yan Zhenqing's regular script Qin Li tablet, Wang Xizhi's masterpiece Lanting Preface.
Four. Research conclusion
1. There are Oracle Bone Inscriptions, Jinwen, Dazhuan, Xiaozhuan, Lishu and regular script.
2. There are calligraphers Yan Zhenqing, Wang Xizhi and Liu Gongquan.
3. Yan Zhenqing wrote "Qin Bei" and Wang Xizhi wrote "Preface to Lanting".
7. Excellent composition of 500 words in research report composition
First of all, the question is raised. Water is a precious natural resource for human beings, but with the development of society and the construction of factories and farms, rivers have also been seriously polluted. So I made a survey on the pollution of the river.
Second, the survey method
1, by looking at the map and observing around the river, we can understand the environment around the river.
2. Observe the growth of fish and shrimp in the river.
Three. Investigation and data collation
Information channel: look at the map and surf the Internet.
Survey: What impact does the river have on nearby residents?
Specific content: nearby poor residents draw water, wash clothes and wash vegetables in the river.
Information channels: visiting, observing and recording.
Investigation: Pollution sources of rivers
Specific content: The nearby factories regard the river as a garbage dump and discharge dirty things at will, especially printing plants, printing and dyeing plants and chemical plants.
Information channels: interviews and surveys
Survey: What impact does the river have on residents' lives?
Specific content: residents can't drink clean water, and they can't wash clothes and vegetables with clean water.
Four. conclusion
Factories discharge a lot of waste water and dirty things every day, which threatens the survival of fish in the river and the growth of plants in the water and beside the water. People by the river dare not go down to wash clothes and vegetables, and people dare not water the land and flowers with the water in the river, which brings harm to people's lives.
8. Excellent composition of 500 words in research report composition
Ask questions first. We are only in primary school now. However, I found that many students in our class wear glasses, and some students' eyesight is even lower than 4.5, which may bring a lot of inconvenience to their future life, study and work. So I want to take this opportunity to study what factors are mainly involved in the decline of primary school students' eyesight.
Second, the survey method
1, consult books, newspapers and websites, etc. Understand the main reasons for poor eyesight of primary school students.
2. Issue a "questionnaire" to find out the reasons and number of students' eyesight decline.
3, through a variety of ways, collect the consequences of decreased vision.
Three. Investigation and data collation
information channel
Aspects involved
Specific content
Books and newspapers
network
magazine
Four. conclusion
1, according to research, the causes of myopia or decreased vision are:
(1) Poor posture when doing homework.
(2) surf the Internet and watch more TV every day.
(3) When doing eye exercises, you are not serious enough. You should open your eyes from time to time.
More than 80% people often read books in bed.
Therefore, developing good eye habits is the key to protect your eyesight, and don't damage the window of your heart.
2. The following are suggestions for students who have not developed good eye habits:
(1) Try not to turn on the light to read or do homework after 5: 30 in the evening.
(2) When doing homework, we should strictly "punch one foot and one inch".
(3) Try not to turn off the lights when watching TV or using the computer at night, because this is a key point that leads to poor eyesight.
(4) Don't sit in front of TV or computer for a long time, let alone play games for a long time.
5] Go home every day to call your password and do eye exercises.
[6] Don't wear other students' glasses easily, which is not good for yourself, but will slowly reduce your eyesight.
9. Excellent composition of 500 words in research report composition
Ask questions first. We just started school now, but I found that there are many students wearing glasses in our class, and some even have a vision lower than 4.5. It may bring a lot of inconvenience to their future work and life. So our group would like to take this opportunity to study it.
Second, the survey method
1. Check the cause of vision loss. Through books, newspapers, websites, etc.
2. Collect the results caused by vision loss through various channels.
Three. Investigation and data collation
Aspects involved
sources of information
Specific content
Causes of myopia
Inter-classmate survey
Playing computer and watching TV for a long time, doing homework incorrectly, walking to read books, playing mobile phones, cycling to read books and play mobile phones.
The harm of myopia
Books, newspapers and periodicals, online inquiry
Myopia can lead to blurred vision, and high myopia can cause diseases such as vitreous liquefaction, turbidity and strabismus. ...
How to prevent myopia
Hospital bulletin board
1, do eye exercises regularly.
2, the combination of far and near, see more green.
3, a reasonable diet
4. Correct posture when doing homework
5. I don't spend much time reading books, watching TV, playing mobile phones and computers.
Four. conclusion
1. Don't do anything harmful to your eyes.
Everyone can read books, newspapers and watch TV. , but you can't be unrestrained. You should pay attention to rest with your eyes for a long time.
10. research report composition 500 words excellent composition
First, on the issue of "food is the most important thing for the people", food culture is an indispensable part of our daily life. Chinese food and western food are two different cultures. We saw from the Internet that China and the western food culture have a long history, so Yang Kexin and I formed a group to investigate China food and western food.
Second, the method of investigation.
1, check the books about diet, and learn about the practices of Chinese and western food, and what are the differences between them.
2, from the computer network, books and newspapers to find the history of Chinese and Western food.
3. Look through the recipes, visit and study, and learn to cook famous Chinese and western dishes.
Three. Investigation and data collation
information channel
Aspects involved
Specific content
Surfing on the internet
The significance of Chinese and western food
Chinese food refers to the food with China flavor. Western food is the general name of western food culture.
book
Chinese and western famous dishes
Chinese food includes kung pao chicken, Buddha jumping wall and Dongpo meat, while western food includes black pepper beef fillet, French foie gras and lobster baked with cheese.
Interview people around you.
Which dishes do people prefer?
Most people in China like Chinese food, while West Renye Fang is interested in Chinese food.
TV
The respective categories of Chinese food and western food
There are eight major cuisines in China, namely, Cantonese cuisine, Sichuan cuisine, Shandong cuisine, Huaiyang cuisine, Zhejiang cuisine, Fujian cuisine, Hunan cuisine and Anhui cuisine. Western food is divided into French, English, Italian, Russian, American and Mediterranean styles.
Four. conclusion
1. The main features of western food are prominent main ingredients, beautiful appearance, delicious taste, rich nutrition and convenient supply. There are many kinds of ingredients in Chinese food, almost anything that can fly, dive, move or grow can be eaten. Raw materials can be processed into fine knives such as silk, diced, sliced and shredded. In terms of taste, most Chinese dishes are obviously salty, rich in variety, and full of color, fragrance and taste.
2. Chinese food and western food have different manners when eating:
China people: Sit down: This kind of "hero sitting down" is the most important food ceremony in China. Since ancient times, because of the evolution of table furniture, the arrangement of seats has also changed. Generally speaking, the chief of the family banquet is several generations of elders, and the last seat is the lowest. In a family dinner, the chief guest is the most respected guest, and the guest host is the last one. The director can't sit until he's seated, and he can't start until he starts. When he was on a wine tour, he began to respect the chief executive in order before drinking.
The more upscale the hotel, the more you need to make an appointment in advance. When making an appointment, you should indicate not only the number and time, but also whether you want a smoking area or a seat with a good view. If it is a birthday or other special day, you can tell the purpose and budget of the banquet. It is basic courtesy to arrive within the scheduled time.
No matter how expensive casual clothes are, you can't just wear them to the restaurant. In Europe and America, it is common sense to dress appropriately when eating. To go to high-end restaurants, men should wear neat tops and leather shoes; A lady should wear a suit and shoes with heels. If formal clothes are required, men must wear ties.
Sit on the left of the chair. The most suitable sitting position is sitting on the left. When the chair is opened, the body will stand up straight at a distance that almost touches the table. The leader pushes the chair in, and the legs bend and touch the chair behind, so you can sit down.
The order of serving a full set of dinner is: ① dish and soup; ② Cod liver oil; 3 fruits; 4 meat; 6 yogurt; 6 dessert and coffee; 6 fruit; And aperitif and table wine. There's no need to order them all. It's impolite to order too much and not finish it. People who only order appetizers are not welcome in restaurants with a little standard. Appetizers, main courses (fish or meat) and desserts are the most suitable combinations. Ordering is not an appetizer, but a favorite main course, and then a soup suitable for the main course.
Chinese food and western food also have different nutrients. At present, western developed countries are moving towards a popular diet, with meat as the main energy source, which is characterized by high energy density, rich in oil and sugar, and lack of complex carbohydrates. The traditional diet of China residents takes cereals as the main energy source, providing about 75% of the total calories, 66% in protein and 8% in animal foods, and 1 1% in protein.