I beg for a 200-word research report for fifth grade today! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

Research report on whether Chinese can go global

1. Question raised

Now, more and more people around us are starting to learn English . English has become an important subject. It can be said that the international language now has become English. And can our mother tongue, Chinese, go global?

2. Investigation method:

1. Go to the library to check relevant information

2. Check the relevant information online

3. Investigation Situation and information compilation.

1. The number of English and Chinese speakers.

There are currently about 400 million native English speakers in the world

There are currently about 1.3 billion Chinese native speakers in the world

2. English and Chinese spelling and pronunciation.

There are no rules for English spelling and pronunciation. The spelling is quite confusing and there are dozens of ways to pronounce it.

In Chinese, there are no tense changes, no changes in verbs and adjectives, and no continuous reading. The language is concise, the pronunciation is clear, and the speaking speed is slow.

3. Difficulty of learning English and Chinese

Modern English eliminates the need for complex changes in nouns and adjectives. Therefore, the first characteristic of English is that its structure is relatively simple, so it is relatively clear and easy to learn.

Although Chinese grammar is not difficult to learn, Chinese characters are relatively difficult to learn. There are many Chinese characters with similar shapes and similar sounds. Each Chinese character can have many meanings and has multiple phonetic characters. Therefore, Chinese characters are very difficult to learn.

4. Conclusion.

After comparing English and Chinese, we can find that Chinese grammar is relatively simple, but learning Chinese characters is very difficult. English itself has two characteristics: simple structure and strong expressive power. This is very convenient for international communication and is also a huge advantage compared to Chinese.

So, we can come to the conclusion that if Chinese wants to go global, it will face many practical problems. Therefore, it is difficult for Chinese to go global.

Jin Zhengcheng, Xishiku Primary School, Beijing Water is a precious natural resource. Now more than 80 countries around the world, about 2 billion people are facing water crisis, and 300 million people in 26 countries Many people live in water-scarce conditions. Our country's water resources per capita is at the middle and lower levels in the world, ranking 127th in the world, which is only equivalent to a quarter of the world's per capita water resources. Beijing's per capita water resources are about 300 cubic meters, only 100% of the world's per capita water resources. One-eighth of the per capita water resources is one-thirtieth of the world's per capita water resources, far below the internationally recognized lower limit of 1,000 cubic meters per capita water shortage. Beijing's current groundwater level has dropped by 5.52 meters compared with the early 1980s. The ground in Beijing is currently sinking at a rate of 10 mm to 20 mm per year.

Survey on car washing water consumption

Car washes use tap water to wash cars. These car washes wash about 20 to 30 cars every day, and some as many as 80 cars. Each car needs a maximum of 50 kilograms of water, and a minimum of 10 kilograms. If the average water used to wash each car is 30 kilograms, and 6 car washes can wash 200 cars a day, then 30 kilograms × 200 = 6,000 kilograms = 6 tons, one year (365 days) is 200 vehicles × 365 = 73,000 vehicles, 30 kilograms × 73,000 = 2,190 tons. Through calculation, it can be seen that 2,190 tons of water are used every year in just 6 car wash shops.

Analysis and discussion

Car washes use tap water to wash cars. There are more than 600 car washes in Xicheng District alone, using 1,314,000 tons of water a year. It is equivalent to the water of two Shicha Seas (the volume of Shicha Sea water is 510,000 cubic meters). There are more than 600 car washes in the city? How many 1,314,000 tons of water are used every year? That is simply an unbelievable number. Moreover, the car wash industry has a trend of rapid development.

Suggestions and Measures

1. It is necessary to use radio, television, newspapers, slogans, blackboards, etc. to vigorously publicize the current situation of severe water shortage in Beijing, thereby enhancing people's awareness of water conservation.

2. It is hoped that relevant departments will mandate the installation of car wash water treatment circulation systems.

3． All units should develop measures to limit the number of times drivers wash their cars and educate drivers to wash their cars with water in buckets.

4. Encourage the development of computerized car washes to form scale and network.

5. It is hoped that the housing management department will install water-saving toilet flushers in residential areas where buildings are concentrated and modify the float height of the old toilet flush tank.

Research report on students eating KFC

August 14, 2009 Author: Qi Yun School: Mao Yisheng Experimental School Class: Class 4 (1)

1. Question raised:

I always hear adults say that KFC is junk food, but I still bother to eat it, so I thought, is it harmful for primary school students to eat KFC? If so, how much harm will it cause? So, I looked into it.

2. Investigation method:

(1) Find out from the Internet whether it is harmful for primary school students to eat KFC.

(2) Find out through newspapers whether it is harmful for primary school students to eat KFC.

3. Investigation and data compilation:

(1) Causes obesity: A serving of KFC fast food provides approximately 1,400 kcal of energy, accounting for the daily supply for a 3-year-old child 88%-113% of 13-year-old children, 49%-63%. The energy provided by fat accounts for 40%-59% of the total energy. The energy provided by fat in a portion of KFC fast food accounts for about 50% of the total energy, and the vitamin content is less than 10% of the fat.

(2) Damage to the intelligence of children: One fried chicken drumstick is equivalent to the toxins of 60 cigarettes, which not only causes nutritional imbalance in the body, but also causes serious damage to the development of children's brains.

(3) High levels of carcinogens: Burgers, French fries, fried chicken and other foods contain a large amount of "acrylamide", which can cause genetic mutations and damage the central and peripheral nervous systems. , inducing benign or malignant tumors.

4. Conclusion:

Primary school students who often eat KFC are prone to increase their blood pressure, blood lipids and cholesterol, and may become obese, have heart disease, hypertension, diabetes and other cardiovascular and endocrine systems. . Frying and roasting can easily produce cancerous substances and can cause permanent damage to children's intelligence. Experts warn us: It is best not to eat Western fast food at night to avoid indigestion; it is not advisable to eat more fried foods and try to eat more fruits and vegetables to supplement the insufficient intake of vitamins and minerals; pay attention to the daily dietary balance and limit the intake of vitamins and minerals. Frequency of eating foreign fast food. Therefore, KFC is harmful to our body. We should try to eat less or not eat KFC.

Definition of the topic The education slogan proposed by UNESCO for the 21st century is "Learning to be" - learning to live! "Learning to Survive" talks about how people can fully develop their full potential to adapt to the development and changes of the world and the times. Survival education emphasizes education from the perspective of cultivating people's various survival and life abilities, in order to explore people's various potentials, enhance people's survival and life awareness and abilities, and adapt them to the development and changes of the world and the times. The survival and life education in this topic is based on individual survival and life, following the laws and principles of survival and life, cultivating students' awareness of survival and life, and cultivating students' good habits and basic abilities necessary for survival and life. Through education, students can cherish life, love life, fully understand and strive to realize the greatest value of existence, and make their own and others' lives better and better. Through education, students can gradually develop good habits necessary for survival and life, and improve the abilities necessary for survival and life to meet the needs of survival and development. 2. Research purpose 1. Enhance students' awareness of survival and life. 2. Guide students to understand the real situation and gradually improve basic common sense of life. 3． Cultivate students' initial survival and living habits and abilities. 3. Research content: 1. Learn and absorb relevant theories of survival and life education, and form new understandings suitable for primary school survival and life education. 2. Explore the goals and content of survival and life education for primary school students. 3． Explore the significance and basic concepts of survival and life education for primary school students.

4. Explore ways and methods to carry out survival and life education in primary schools. 4. Research methods Action research method: Focus on teachers’ educational behavior, discover problems in education, solve problems, then discover problems, and then solve problems. Experience summarization method: every activity has a plan, a plan, an inspection, and a summary. Through experience summarization, we continuously deepen research and achieve results. Literature method: Find out the theories and practical experiences related to survival and life education from numerous materials. Survey method: Under the guidance of educational theory, scientific methods such as observation, lists, questionnaires, interviews, and tests are used to obtain data and conduct research.

If the Chinese language book is from the People’s Education Press version, then choose this one. Haha, I wish you good luck, kid!

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1. Research background:

At present, primary and secondary school students have heavy academic workload. In addition to completing homework after class, they either play games or watch TV. . The burden on the eyes is heavy, and they usually participate in few sports activities, so the students' vision is not optimistic. To this end, students are organized to conduct investigations on eyes and vision conditions in comprehensive practical online small project research activities.

II. Purpose and significance of the research:

According to a joint survey by the Ministry of Health and the Ministry of Education, the current incidence rate of myopia among students in my country is close to 60%, ranking second in the world and ranking first in the world in terms of myopia. head. The myopia rate among high school students has reached more than 70%, and the number of patients exceeds 60 million. Therefore, it is urgent to popularize the common sense of eye care and eye protection. Through investigation and research, students will know how important the eyes are for current and future study and work. They should pay attention to eye hygiene, do eye exercises carefully, have correct reading and writing postures, pay attention to diet and nutrition, and actively participate in physical exercises. At the same time, you can master computer-related operating skills through the process of operating computers.

3. Research methods:

1. Students choose and modify the survey items themselves, and conduct them in several groups. The group leader is responsible for the specific details, and the teacher cooperates with the guidance.

2. The visual acuity test results of second- and fifth-grade students are obtained from the visual acuity files of the school clinic, and then input into the computer for analysis and statistics.

3. To investigate the vision status of students and family members, each student fills in a form for statistics.

4. Collect knowledge online about eye structure, common eye diseases, and how to care for and protect your eyes.

4. Other investigation methods shall be discussed and formulated by the team and each team leader, and shall be adjusted and implemented at any time.

5. Keep records of activities and archive the resulting data.

6. Use various survey data to create computer tabloids and electronic slides, and write down your personal survey experience.

4. Research organization:

With the class as a unit, it is divided into eight natural groups, headed by the leader of the Chinese group and the leader of the investigation group. Specifically, the investigation will focus on individual team members. Basically, the network equipment in the computer classroom is used to accumulate and organize data. Teachers organize, coordinate, and help provide relevant school statistics and other materials. Teachers also provide study guidance on computer operations and participate in data collection.

5. Research process:

1. Project investigation

1. Vision test situation and analysis of second-grade and fifth-grade students in 2004.

2. A survey on the current workload of fifth-grade students in a day and the time it takes to complete it.

3. Investigation into the accuracy of students’ writing postures and eye exercises.

4. Myopia degree, number ratio and price of students wearing glasses.

5. School classroom lighting requirements (learn online), survey and analysis of lighting conditions in our school.

6. Statistics on the average time spent watching TV per day.

2. Understand the structure of the eye and the causes of myopia:

1. Search for information online to understand the structure of the eyeball.

2. Search for information online to understand the causes of myopia.

3. What are the measures and practices to prevent myopia.

6. Research results:

1. Students individually submit a survey computer tabloid, and the group completes a PPt slide.

2. The investigation team compiled two computer tabloids, two PPt slides, and wrote two investigation summary reports. (Including summary report materials of the survey on computer usage).

3. A copy of the student’s experience and suggestions after completing the activity.

7. Conclusions and Suggestions:

Through this survey activity, everyone has reached such a level of awareness: We know that poor vision is an incidence that currently affects students’ physical and mental health. Higher education students have common diseases. If this continues, this will inevitably affect the health quality of our Chinese nation. Eyes are so useful. We study, live, and work every day...no matter what we do, we cannot do without our eyes. Every child knows that if you don’t have eyes, you can’t see anything. How can you make a better contribution to the “four modernizations”? We really feel that we need to take good care of our eyes.

1. We have found that being addicted to video games is very harmful to the eyes and the body and mind. The students said that they should do eye exercises seriously, including maintaining a "punch, foot, and inch" writing posture, washing hands before meals and after going to the toilet, maintaining a good lighting environment, and not watching too much TV. After reading continuously for about an hour, take a break or look into the distance for a while.

2. We should do three things:

(1) Do not read or write in dim light or under direct sunlight.

(2) Do not read while lying on the bed, walking or in a turbulent carriage.

(3) When you encounter problems, you can go online to find the information you need. Look for more information, don’t play games all the time, and be sure to protect your eyes. In short, there are still many things to do, students, let us protect our own eyes together!

3． Class 5 (2) classmate Zhou Hongyang suggested that in order to change students’ bad habit of being addicted to games, they can try to make a small game by themselves. Isn’t this much more interesting than playing games? Go try flash. If you learn it, animations and mini-games will be no problem. This is really interesting, don’t you believe it? Xu Qianqian, a classmate from Class 5 (3), suggested that the school could also organize activities on food nutrition issues, because many students now like to eat KFC and McDonald's, but do not like to eat vegetables, and do not pay much attention to food nutrition issues, so they hope that through this activity Let students realize the seriousness of not paying attention to food nutrition.

In short, our three fifth-grade classes conducted a survey on eyes and vision conditions during a small project on comprehensive online practice. From this, we learned that there is a lot of knowledge in using eyes to protect the eyes, and the current vision conditions of students We are not optimistic. We still have a lot to do.

In practice, we carry out activities through computers and the Internet, which broadens our horizons, improves our abilities, and acquires a lot of knowledge.

I hope it helps you, haha. But you can’t copy every article, you have to have your own imagination.

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Myopia:

According to surveys, there are more than 5 million blind people in my country and nearly 10 million people with low vision, especially among children and teenagers. , the prevalence rate is extremely high. The latest data from the National Student Physical Health Survey show that the incidence of myopia among primary school students in my country is 22.78%, that of middle school students is 55.22%, and that of high school students is 70.34%. What is even more shocking is that a survey report stated that more than 300,000 people in China have been blinded by high myopia. Therefore, the prevention and treatment of myopia in children and adolescents has attracted more and more attention from students, parents and society. Why are more and more students suffering from myopia? How do students become myopic? Is it just caused by bad eye habits? In order to understand the myopia situation among primary school students and the related factors that cause myopia, I conducted a survey among some students in our school.

2. Questionnaire

1. Are you myopic?

A. Yes B. No

2. Are you myopic? How do you get myopia? (If you are not myopic, don’t answer)

A. Watching TV too much B. Sitting in an improper posture C. Others

3 How much myopia do you have?

A. Below 100 B. Below 500 C. Higher

3. Investigation and analysis: Causes of myopia:

Most people do not pay attention to protecting their eyes. Myopic. Research results show that myopia is an adaptive change of the human eye to the contemporary environment. Its occurrence and development are closely related to the environment of increasing close eye activities, and to the imbalance of nutritional intake. Improper use of eyes and failure to pay attention to eye hygiene (such as watching TV and surfing the Internet for too long, etc.) are the main causes of myopia in modern children.

1 Watching TV too close

2 Watching TV for too long

3 The TV picture density is too dark

4 The posture when doing homework is incorrect

5 Reading under too strong sunlight

6 Reading under too weak light

7 For a long time in front of the computer

8 Unreasonable diet

9 Watching laser light

10 Reading in the carriage

11 Genetic factors

12 Not doing eye exercises seriously

IV. Survey results:

Through the survey, it was found that the rate of myopia among today’s middle school students is increasing, and middle school students are not aware of the phenomenon of myopia. not take it seriously. Some people even think that wearing a pair of glasses can cure myopia. I don't care about myopia and make mistakes. Many people often blame it on bad eye habits, such as improper reading distance, too dark light, prolonged use of eyes, etc. However, medical research in recent years has shown that unbalanced diet, lack of sleep, noise, etc. are also important factors in inducing myopia in teenagers.

5. Suggestions

(1) When reading, your posture should be correct and the light should be sufficient. To read and write, you should sit one foot away from the desk, your chest one foot away from the desk, and your eyes one foot away from the textbook.

(2) Do not read while riding in a car or walking, and do not lie down to read. After reading and writing for 1 hour, you should look into the distance for 10 minutes or walk outdoors to adjust your eye muscles.

(3) Do eye exercises for ten minutes between classes.

(4) Use the Internet as little as possible or watch other highly radioactive things. Pay attention to the arrangement of work and rest time, and do not let your eyes be tired for a long time.

(5) Don’t be picky about your food, eat less spicy food, and eat more food containing vitamin C, vitamin A, and D.

(6) Go to an ophthalmologist for regular check-ups, follow the doctor’s instructions, and gradually correct your vision or prevent the progression of myopia.

6. Experience

In order to effectively prevent eye diseases such as myopia: first, we must develop good hygiene habits, eat reasonably, exercise, and ensure physical and mental health; second, we must correct bad habits and maintain good health. Develop good eye hygiene; third, go to an eye hospital regularly to check your eyes, especially for patients with high myopia, to detect eye diseases in time for early detection and early treatment. Vision is related to our whole life. We must take good care of our eyes so that we will not regret it in the future!

My home was only half the size now, with a living room and a bedroom, where I spent my time. After my infancy, my memory of that time is hazy and fuzzy. I heard from my mother that at that time there was only a small color TV, a small refrigerator, a semi-automatic washing machine, and a fabric sofa. The fire was made of briquettes... That was a A simple but warm home. Now let me show you around my new home:

My new home has a large living room, two bedrooms, a study room, and a small storage room. I used to live in my parents’ home. I live in the bedroom, and now I have my own world, and I also have the autonomy to decorate my warm little world: my sheets, bedspreads, and curtains are all from Winnie the Pooh, my wardrobe is full of my clothes, and I also have the freedom to decorate my warm little world. With bookcases and desks, I call this place a "happy learning world". I also put up my favorite posters on the wall. Each poster reveals my innocence and happiness. I have a piano. I was immersed in the world of music every day, whether it was sadness or joy, it made me intoxicated. I gradually got some teddy bears, and every night I would tell them the legendary stories of the day; there was a big TV in the living room of my house. Made of sofas, rocking chairs, large bookcases, and many shells I picked up in Hainan... Do you think my home has changed?

IV. Conclusion

Why don’t people want to change from bad to good, but change requires hard work from generation to generation. Let us study hard so that I have no idea. May the Chinese New Year be even more glorious!