Information dissemination changes our lives (research report)
A long time ago, the way of information transmission was very backward. Migratory birds, especially pigeons and geese, are used as communication tools, such as fish bellies, cakes and steamed bread stuffing, with special sounds, such as bells, drums, firecrackers, lights, firelights, such as Kongming lanterns and beacon towers, and other signs and decorations, such as signs, to lure enemies …
And modern?
Wired communication transmission, such as telephone, fax, telegram, television, etc. Wireless communication transmission, such as walkie-talkie, pager (to be eliminated), mobile phone, radio, digital communication transmission, the most familiar networked computer, digital TV, paper communication transmission, such as letters, newspapers, etc. ...
The first revolution in the history of human communication-the creation of language-occurred 654.38 million years ago; Human beings invented writing in about 3500 BC, and realized the second communication revolution. In the third communication revolution, China people first invented printing in the early Tang Dynasty. 1844, mankind carried out the fourth broadcasting revolution and ushered in the dawn of telecommunications; From 65438 to 0946, computers appeared in the fifth communication revolution.
In the history of human communication, the great effects of five communication revolutions not only changed what people saw and heard in the past, but also profoundly influenced what people think and do today. Therefore, it is undoubtedly of far-reaching historical and practical significance to analyze and study the causes, processes and significance of five communication revolutions in the history of human communication.
Everything has its advantages and disadvantages, not to mention the network, and the network also has its advantages and disadvantages.
When we need to find information, it is really too much trouble to look through those thick dictionaries, not to mention that some dictionaries can't be found at all, so we have to look for books or magazines. When we have our own computer, we can look for information on the Internet. There are many things recorded on the computer, more than those recorded in books, magazines and dictionaries. Although buying a computer is more expensive than buying books, magazines and dictionaries, it is still worth it.
The benefits of the network are not only these, but also many and countless, but there are also many disadvantages of the network.
When we first touched computers, we were attracted by them. Now more boys are infatuated with the internet, so they give up their studies and their grades gradually decline. Stealing money to surf the Internet, surfing the Internet. When they have no money to surf the Internet, they will take money from their parents, classmates, friends and even teachers. When the teacher finds out that he has left, teach him a lesson. When he is angry, he will act out of line. ...
Surfing the Internet has both advantages and disadvantages for teenagers. We must seek advantages and avoid disadvantages. We should catch ourselves and not let ourselves commit illegal acts until it is too late.
Write a simple research report
First, the basic requirements for writing a research report.
1. Clear question.
2. The method is proper.
3. Sufficient data and reasonable analysis.
4. The conclusions are clear (some are not clear enough to specify what you want to continue exploring).
Second, how to write a simple research report
The research report is a practical article in a conventional format. The general format of the research report is:
1. Title. The title of the research report often adopts the title of the research topic directly, which is accurate and clear, so that others can see the problem at a glance.
Below the title is the signature. Generally, it is necessary to specify the unit to which the researcher belongs, such as XX class in XX school.
2. Preface. The first part of a report is usually briefly introduced in the form of a speech.
Explain the following contents: (1) The reason for the topic; (2) The significance of studying this topic; (3) Problems to be solved in this study. Some people directly take "asking questions" as the title of this part.
3. Research methods. This paper introduces how the research is carried out, including the selection of research objects, research aspects, data collection and processing, etc.
4. results. This part presents the research results to readers as objective facts. It mainly includes the analysis of data processing and the conclusions drawn from the analysis.
Example 2:
The primary school myopia research report is as follows:
First of all, the topic is put forward:
Many students in our class have brought glasses one after another, and I am one of them. How many people are nearsighted? Why are they nearsighted again? I did a survey.
Two. Investigation method:
1. Consult related books to find out how ordinary people are nearsighted.
2. Investigate and ask classmates how they are nearsighted.
Find out how many people in Class One are nearsighted through various channels.
4. Publish the questionnaire through the class blog.
Three. Investigation and data collation:
There are 1 1 people in my class.
The myopia rate in China is close to 30%, 22.7% of primary school students suffer from myopia, and the myopia rate in junior high school has soared to 55.8%. 70.3% of high school students wear glasses, and the myopia rate of college students is as high as 80%.
There are many reasons for myopia. According to our guess, there are genetic factors, environmental factors, individual factors, nutritional factors and sleep factors. The main causes of myopia in primary school students are doing homework too late, not getting enough sleep, watching TV and playing computer too much, and consuming a lot of German and protein.
The myopia rate of primary school students is very high now. Although myopia has some genetic factors, what is more important is the influence of external factors. At present, there is no more effective treatment except wearing glasses, and only permanent preventive measures can be taken. Although the high myopia rate of middle school students is related to the current education system, it is more due to the habit of using eyes. The key to prevent myopia is to develop good eye habits.
Four. conclusion
Through the analysis of the questionnaire, I found that:
1. Generally speaking, the homework burden of most students is very heavy, and it increases with the growth of grades.
2. No matter what grade you do your homework, you don't have a good rest for your eyes; The rest time at school once again shows a trend of decreasing with the increase of grade.
3. Anti-fatigue eye drops and eye exercises have therapeutic effects on eyes, but they have not attracted the attention of students.
Although there are many more people who are nearsighted than those who are not, people who don't wear glasses still account for a considerable proportion. This shows that students pay insufficient attention to myopia!
5. The factors, such as incorrect posture and improper use of eyes, can be overcome and corrected as much as possible; For example, if the light is too dim or too strong, we can adjust it. We can try to avoid such things as improper protection and improper medication; ……
I made the following suggestions:
1, insist on overlooking, eye exercises and recess exercises every day, and actively participate in cultural and sports activities.
2. There should be enough light when studying, and the light should always be from the left. Don't read or write in weak light, dazzling sunlight and strong light.
Don't sleep in bed or read while walking. Don't read and write at your desk.
4. Don't use your eyesight for a long time. Every 50 minutes of study, rest 10 minutes.
5. Don't watch TV too often for too long, and control it within 1 hour. Not too close. At least two meters apart.
Remember the advice given by ophthalmologists: develop good eye habits: read books, surf the Internet and watch TV for no more than an hour, don't read books in too strong and dark light, be sure to pay attention to your writing posture, and it is very important to keep doing eye exercises.