The content of the investigation report is 400 words.

In daily study, work or life, when it comes to composition, everyone is certainly familiar with it. According to different genres, composition can be divided into narrative, expository, practical and argumentative. You always have no way to write a composition? The following is a 400-word and 7-article survey report composition compiled by me for your reference, hoping to help friends in need.

Investigation report composition 400 words 1 investigation time: September 20xx 17.

Investigation location: Dinghai District, Zhoushan City

Interviewee: Advertising signs

Investigator: Zhou

Objective: To understand the situation of street typos.

Investigation method: observation method.

There are many typos in the street now. In order to understand the actual situation, we carried out "Woodpecker" and "Insect Catch" actions from Furong Road-Guo Chang Road-Renmin Middle Road-Jiefang East Road.

First of all, we came to Zhou Furong Road, where the traffic was busy and people came and went, and we began to "search" carefully in the heat. Suddenly I found the door of a clothing store and wrote the word "clothes" as "evening". What a careless shopkeeper!

Unconsciously, we have come to Renmin Middle Road and walked into the "Friends of China" supermarket to have a rest, but we accidentally saw an eye-catching big word "T-shirt promotion of summer pants", with the word "summer" missing a horizontal line, the word "pants" missing and the word "T-shirt" missing, which really ruined the image of the whole supermarket.

Later, a typo was found on Jiefang East Road. A clothing store wrote a T-shirt as "towel blood".

This "Woodpecker" operation really gained a lot, and caught five big "bugs".

The survey found that although people's education level has improved, typos still appear frequently. In three hours, * * * found many typos and analyzed the reasons. I think there are the following points:

1, careless, not solid enough to master Chinese characters.

2. Not serious enough when using Chinese characters.

3. The staff is not responsible.

I feel angry when I see typos. Chinese characters were created by our ancestors one by one. We should respect them and write them well. Chinese characters are the elite of all kinds of characters, and we can't transform them to save trouble.

Investigation report composition 400 words 2 Land is the foundation of human food and clothing. Today, with the high development of science and technology, the land has been destroyed unprecedentedly. Among them, soil pollution is like a soft knife, depriving a large area of fertile soil of its productivity.

Soil pollution mainly refers to the phenomenon that some harmful substances in the soil greatly exceed the normal content, and the land can not eliminate the influence of these harmful substances. Serious soil pollution will lead to crop growth decline, even wither and die, and these pollution consequences can be found in time. More soil pollution has no obvious performance, but it reduces the quality of agricultural products, especially through the enrichment of harmful substances by crops, which secretly harms the health of livestock and human beings. We must be highly vigilant.

Soil pollution mainly comes from domestic sewage and industrial wastewater, waste gas, waste residue, chemical fertilizer and pesticides. Domestic sewage and human and animal manure contain many nutrients that plants need. Irrigation with sewage or application of manure usually increases crop yield. However, pathogens, viruses, parasites and eggs in these wastewater and wastes enter the farmland and deposit in the soil, causing soil pollution. Human contact with contaminated soil and agricultural products can cause tetanus, epidemics, endemic diseases and parasitic diseases.

Once the soil is polluted, its influence is difficult to eliminate. Organic pesticides decompose very slowly, and heavy metals do not decompose at all. Even if the polluted land is no longer polluted, it will still contain high levels of harmful substances after three to five years, which can be enriched through the food chain and endanger human beings. Therefore, the plants on the heavily polluted land can not only be eaten, but also can not be used as feed or fertilizer.

Investigation report composition 400 words 3 plastic bags are convenient items that we often use. It does bring convenience to our life, but this temporary convenience brings long-term harm.

On the morning of Sunday, April 6th, 20xx, my parents and I went to Tang Sheng Moore to do research on plastic bags. I stood in front of the checkout counter and observed that a customer passed by every minute on average, probably using one or two plastic bags. A * * * has six checkout counters and 6×60=360 plastic bags. Tang Dynasty Moore opens at 9 o'clock and closes at night 10. * * 14 hour, about 5040 plastic bags are used every day.

While enjoying the convenience of merchants, we are also aware of the threat posed by plastic bags. Because plastic is non-degradable, it will not dissolve on the ground for decades or even hundreds of years. In recent years, due to the widespread use of plastic bags, people will leave colorful plastic bags wherever they pass, whether in front of or behind the house where people live or in the countryside. Whenever the wind blows, these plastic bags will dance with the wind. So there are always some plastic bags in the sky, which cause great pollution to the environment and become a great disaster.

From June 1 this year, plastic bags closely related to people's lives will be banned, and it is suggested to reuse cloth bags or bamboo baskets. You see, after knowing the harm of plastic bags, shouldn't we start from the side and protect the environment from ourselves? Everyone is responsible.

Investigation report composition 400 words 4 Investigation time: 20xx year 65438+February 65438+April.

Survey location: No.2 Experimental Primary School in Zhao 'an County 1 class.

Purpose of investigation:

Understand the situation of primary school students surfing the Internet and make suggestions. Because many children are addicted to the internet, which seriously affects students' study. Healthy. On February 4th, 20xx, we conducted a sample questionnaire survey on students in Class 1 2 of Grade 6.

Findings:

1. Purpose of surfing the Internet: We surveyed 12 people, of whom 16% played games online, 16% chatted online and 75% looked up information. Others are looking for information about anime. 50% people go to listen to music and so on.

2. Where to surf the Internet: 20% people surf the Internet at home, and 80% people surf the Internet in Internet cafes.

3. Online time: 8.3% people surf the Internet for half an hour, 2.5% people surf the Internet for one hour and 2.5% people surf the Internet for two hours. No one goes online every day, and no one stays up all night. 75% people surf the Internet after school, 30% people surf the Internet on weekends and 50% people surf the Internet on holidays.

Analysis of survey materials:

There are so many primary school students surfing the Internet, which shows how important the Internet is to our lives. Generally, people who can surf the Internet have a broader vision and a wider range of knowledge. It is good to surf the Internet properly. But we also think that we should not indulge in the internet and make full use of it to serve our study. Internet is our tool, so we can't treat it as a toy. If I play with you as a toy, my academic performance will definitely plummet. In addition, primary school students should not spend too much time online, which is harmful to their health, especially watching computers for too long, which is easy to cause myopia. So pay attention to the discretion when surfing the internet.

Investigation report composition 400 words 5 Baoji city is an ancient city full of historical allusions in the west of Guanzhong, Shaanxi Province. It is the hometown of Yan Di, the ancestor of China, and the birthplace of Zhou and Qin Dynasties. Known as "the hometown of Yan Di, the hometown of bronzes, the sacred place of Buddhist bones and the hometown of folk art".

Baoji, formerly known as Chencang, was named after Chencang Mountain. More than two thousand years ago, Qin Wengong built the "Chencang City" here. After Qin Shihuang unified the Seven Kingdoms, Chencang County was established here. It was renamed Baoji County in the Tang Dynasty, and the name of this place is still in use today.

The history of Baoji can be traced back to ancient Huang San. According to legend, Emperor Yan, one of the ancestors of the Chinese nation, was born in Yu Meng, Baoji. According to research, there are three original Shennong shrines in Baoji, among which Shennong shrines in Jiulongquan are the most spectacular. Nine-Dragon Spring, the spring gives nine points, and its water is clear, transparent and sweet. The site is located in Yuquan Village, Shennong Township, south bank of Weihe River in Baoji.

Baoji has been an important town in Guanzhong since ancient times. This is where the story of Han and Liu Bang's "building a plank road in the open and crossing Chen Cang in the dark" happened. Chen Cang was renamed Baoji during the Anshi Rebellion in the Tang Dynasty. At first, Tang Susong changed Chencang County to Fengxiang County. Later, because there was always a "Baoji crow" on Jifeng Mountain in the south of the city, Tang Susong thought it was auspicious, so he changed Fengxiang to Baoji and renamed Chencang County Baoji County. Since then, Baoji, an auspicious and beautiful place name, has been used.

At present, Baoji City has jurisdiction over three districts: Jintai, Weibin and Chencang. It has jurisdiction over Fengxiang, Qishan, Fufeng, Meixian, Longxian, Qianyang, Linyou, Fengxian and Taibai. The urban area is 1. 820,000 square kilometers, with a total population of 3.75 million, including 750,000 urban residents.

Investigation report composition 400 words 6 Baoji City is an ancient city full of historical allusions in the west of Guanzhong, Shaanxi Province. It is the hometown of Yan Di, the ancestor of China, and the birthplace of Zhou and Qin Dynasties. Known as "the hometown of Emperor Yan, the hometown of bronzes, the holy land of Buddha bones and the hometown of folk art".

Baoji, formerly known as Chencang, was named after Chencang Mountain. More than two thousand years ago, Qin Wengong built the "Chencang City" here. After Qin Shihuang unified the Seven Kingdoms, Chencang County was established here. It was renamed Baoji County in the Tang Dynasty, and the name of this place is still in use today.

The history of Baoji can be traced back to ancient Huang San. According to legend, Emperor Yan, one of the ancestors of the Chinese nation, was born in Yu Meng, Baoji. According to research, there are three original Shennong temples in Baoji, among which Shennong Temple in Jiulongquan is the most spectacular. Nine-Dragon Spring, the spring gives nine points, and its water is clear, transparent and sweet. The site is located in Yuquan Village, Shennong Township, south bank of Weihe River in Baoji.

Baoji has been an important town in Guanzhong since ancient times. This is where the story of Han and Liu Bang's "building a plank road in the open and crossing Chen Cang in the dark" happened. Chen Cang was renamed Baoji during the Anshi Rebellion in the Tang Dynasty. At first, Tang Susong changed Chencang County to Fengxiang County. Later, because there was always a "Baoji crow" on Jifeng Mountain in the south of the city, Tang Susong thought it was auspicious, so he changed Fengxiang to Baoji and renamed Chencang County Baoji County. Since then, Baoji, an auspicious and beautiful place name, has been used.

At present, Baoji City has jurisdiction over three districts: Jintai, Weibin and Chencang. It has jurisdiction over Fengxiang, Qishan, Fufeng, Meixian, Longxian, Qianyang, Linyou, Fengxian and Taibai. The urban area is 1. 820,000 square kilometers, with a total population of 3.75 million, including 750,000 urban residents.

On Saturday, some friends and I made a survey of the environment in my hometown Wangzhuang.

Standing on the roadside, the first thing you see is a large number of discarded plastic bags, which is the so-called "white garbage". White pollution has a great influence on our lives, and many discarded plastic products can be seen in public places. They come from nature, but they are not easily decomposed by nature, thus affecting the ecological environment of nature. People hope to find a plastic that can replace the existing plastic without causing white pollution, but this cannot solve the fundamental problem. So I hope everyone can get rid of this bad habit-don't throw white garbage everywhere and make our hometown better.

A gust of wind blew, and the pungent smell came face to face. Looking up into the distance, it turned out that the factory chimney was "smoking". There are two big factories in Wangzhuang, which emit waste gas from morning till night. These waste gases contain a lot of harmful gases such as carbon dioxide and sulfur dioxide, which seriously affect people's health.

Children, caring for our environment means caring for ourselves. If people don't care about their environment, what will happen to our hometown in the future? Care about you, me and him, and the environment depends on everyone. Let's work together to create a good and comfortable living environment!