Two. The survey was conducted from August 25th to August 26th, 2007. Investigation method 1. Comparative method II. Observation method 3. Access method 4. Experimental method 4. Investigation content On the evening of 25th, I came to Qujiang River and saw that the water was turbid, and it smelled a little after passing. On the afternoon of 26th, I came to Qujiang again. It just rained, which is much better than that on the 25th. It is neither smelly nor turbid.

I also visited a fisherman who has been fishing for more than 20 years. He said: "This water was good before 1975, but it was not good after 1980. It's getting better now. Much better than in the 1990s.

Mainly because there is a dam, big fish can't be caught. This fish is very small and there are few fish. I only have a few tens of dollars a day. "I observed that there were water hyacinths in Qujiang, as shown below. There were floating objects, as shown below. On the side, maybe people threw them not far away and landed on the side.

There are sewage pipes in the river, many places! Experiment: (1) I scooped some water home and compared it with tap water with the same napkin. The napkins filtered by tap water are colorless, while those filtered by river water are light gray.

(2) I took two small goldfish and put them in the river and tap water respectively. A few days later, I found that the goldfish in the river were trying to turn their bellies white and were not used to life here. Goldfish in tap water is better and free.

It can be seen that the river is dirty and the tap water is clean. V. Investigation Experience I hope that through my investigation report, I can teach some people a lesson and make some people stop throwing garbage after reading it.

Protect Qujiang, protect every river, let's start from now, start from small things.

2. Composition: The current situation of migrant workers We live in this beautiful and colorful world. Although we live a carefree life, we don't lack anything and have everything, but do you know that those hardworking and simple migrant workers have left home and their parents, and they have come all the way here to work alone, helpless? In order to find a good job, they have to get up early and work in the dark. Who told us to be men, hold our heads high, be strong, live up to our parents' upbringing, don't sweat, don't wander, just do what we want, oh-don't be sad when we meet difficulties, don't suffer from wind and rain, carry ourselves tired, sometimes we can't even eat, and we can't stand up when we sleep at night. What can we do? It's all about earning money to support the family, for the sake of my family.

I sincerely hope that all hardworking and simple migrant workers in the world will take care of their health and cherish their lives. Your families will never forget your efforts and strength. Finally, I want to say, hardworking and simple migrant workers, you have worked hard!

3. The composition writer writes an investigation report about three compositions. On New Year's Eve, my uncle and my family went to my grandfather's house in the country.

In the evening, the family ate New Year's Eve dinner around the table, talking and laughing. As for me, I have been staring at a lot of fireworks in the corner.

I can't sit still any longer when I hear the "crackling" firecrackers outside the house from time to time. While the adults were drinking and joking, I quietly pulled my brother and sister out. Wow, it's beautiful outside! I saw the colorful sky, and the rising fireworks sometimes scattered flowers like fairies, and sometimes danced like colorful dancers, decorating the night with splendor.

This is really "the fire tree and silver flowers shine all night, and fireworks fly to welcome the new year"! Not to be outdone, we quickly chose an empty and safe place and started setting off fireworks. First of all, my brother lit the "little wasp" and saw it whistling into the air, emitting colorful light.

Feeling dissatisfied, my brother arranged five "little wasps" neatly on the ground and lit them one by one. I saw "little wasps" flying one by one, and suddenly the sky was bright, so beautiful! Then, my sister took out a "sunflower baby" that looks like a sunflower.

I grabbed it and shouted, "I'll do it, I'll do it." As he spoke, he lit the fuse. It screamed like a top and splashed colorful sparks. Ha, it turns out that setting off fireworks is too simple. This is a piece of cake.

I was proud of it, and suddenly it lost its temper, and "beep beep" released a "bomb", which scared me to turn around and run, causing my brother and sister to almost burst into laughter. The most fun thing is the fireworks stick.

My brother and sister are laughing and dancing with fireworks sticks in their hands. I dare not act rashly for fear of burning my hands. I can see their happiness, but I can't help itching. I also carefully lit one, which scared my hand away. I saw sparks flying, but it was not hot.

Oh, it's not terrible. Gradually, I waved fireworks sticks with both hands and sang and danced heartily ... Finally, we put on air flutes and birds to welcome the spring ... These fireworks are colorful and dazzling.

They rise alternately with the fireworks of thousands of families, the earth boils, and laughter and laughter converge into a sea of joy. Writing composition: The math teacher calls him by his name, and we often call him "Lao Wang".

Not because we are too close to him, but because-his age is so old! Lao Wang should be 54 years old this year-if my math ability has not deteriorated. The 54-year-old Lao Wang often teaches us knowledge, such as "Our school has only been established for 40 years" and "I am a veteran of our school".

But you can't tell us math. Whenever he has a math class, he always lets his classmates study by themselves. When he is in a good mood, he may ask two questions to his classmates impromptu, because he always believes that "the master leads the door and the practice is in the individual."

Because he has always believed in this truth, my class has always occupied the last place in mathematics. Lao Wang is not interested in teaching, but he is keen on work outside of work.

The school should keep in touch with the Education Bureau, so Lao Wang is duty-bound to act as an envoy. I run to the county town three times a day, and every time I go back to school in a sweat.

When other teachers saw it, they couldn't help worrying: "Are you all right? Be careful of this body! " At this time, Lao Wang will happily say, "Nothing, my body is hale and hearty, and the school will reimburse the fare, and the extra fare will be * * * *". Then, a burst of "Hehehe" laughter will happily reverberate in the campus, as if afraid that others will know. I often see Lao Wang and his classmates' parents going in and out of the restaurant.

For a while, I always thought Lao Wang was a part-time hotel operator. After all, I have been in school for more than 30 years, and finally I don't even have a class teacher. If I were you, I would also do some part-time jobs.

Later, I learned that the restaurant was not surnamed Wang. Many parents think that Lao Wang is old and often helps the school go out to run business. They mistakenly think that Lao Wang is from school, so many parents treat him as a gift.

Lao Wang accepted them one by one. But I didn't know that Lao Wang was also a math teacher. After more than 30 years, I finally abandoned the first-grade mathematics and taught it for three years, which is not far from teaching the graduating class of primary school! In autumn and September this year, Lao Wang robbed the janitor's job again-helping the school entertain new parents.

Seeing that he is all smiles, I think next year will be another "bumper harvest"! Preface to the investigation report on eating snacks: Snacks have many hazards, such as: I don't want to eat after eating a meal, and I always like to eat snacks, which affects my appetite. As a result, the more I eat these foods, the smaller my children become. Eating snacks from time to time will inevitably lead to insufficient gastrointestinal rest, reduced secretion of digestive juice, and cause gastrointestinal dysfunction.

To this end, I made a survey on the situation of students eating snacks in our class, and the results are as follows: Do you like snacks? 98% don't like it? Do you wash your hands before eating snacks? 80% will eat snacks. The reason why you like to eat snacks (90%) is that you want to eat when others are eating. (10%) Summary: As can be seen from the above table, there are many people who like to eat snacks, accounting for 98%; Only 2% people don't like snacks.

It seems that most students in our class are not aware of the harm of snacks. In fact, snacks are harmful food. Eating them will not only make you fat, but also have diarrhea.

However, many people cannot resist the temptation of snacks. They eat in class, after class, before and after meals, when they have time, and secretly when they have no time. Someone said, "Can you eat less?" It's okay to eat less, but it's not good either.

Snacks have a lot of bacteria. If you eat snacks when your hands are dirty, you will be in big trouble. 80% students in our class don't wash their hands before eating snacks. In that case, not only the bacteria in the snacks will be eaten, but also the bacteria on the hands will be eaten. After a long time, those bacteria will go crazy in your stomach and make you have to take all kinds of drugs. At that time, it was too late for you to regret it.

So I suggest eating as little as possible, it's not too late. Don't eat any more.

Others said, "What if you really want to eat?" There are many ways to stop you from eating. 1, don't bring money.

Want to eat, have no money to buy. Naturally, I will not buy it.

2. Don't wander around in front of stalls and small shops. If you turn too much, you will want to buy it.

4. How to write the composition of the investigation report? Please refer to my investigation report ~

A Record of Comprehensive Practical Activities of Thanksgiving Family

I. Participants: XXX, classmates and parents.

Activity flow:

Second, the preliminary preparation

1, search information: the origin of Father's Day and Mother's Day.

2. Practical activities: Use the time of comprehensive classes to guide students to make small gifts: make some small mascots, paper-cuts or origami in combination with their parents' zodiac signs.

3, exchange report: I personally made a small gift, what else can I do.

4. Further practice: share something with my parents: What else can I do?

5, activity extension: often use rest days and holidays to help parents do things.

6. Subjects involved:

Music, Chinese, Fine Arts, Information Technology, Morality and Life

7. Teaching methods:

Conversation method, communication guidance method, investigation method, demonstration method, incentive method and cooperative learning method.

III. Purpose of the activity

(1) Let students know their parents' love, feel their parents' affection and realize the selflessness and greatness of their families, that is, let students know why they should be grateful to their parents.

(2) Let students learn to understand, respect and care for their parents, live in harmony with their parents and repay their parents with practical actions from now on.

(3) Starting from students' interests, let them take the initiative to explore, let students go to the society to investigate and understand, and cultivate students' feelings of loving life.

Four. Activity flow

(1) Introduction before class: Since we came to this world, our parents have given us selfless love, so we should be grateful to our parents.

1. Thinking: The upcoming festivals are Father's Day and Mother's Day. Do you know its meaning?

2. Express your opinions and demands: your true thoughts or discoveries.

3. Record the results of communication;

(B) the introduction of the theme: Thanksgiving parents

(3) Introduce each other: Introduce each other to the origin of Father's Day and Mother's Day. It can be found on the internet and in books.

Second, in-depth understanding.

1. The teacher told a true story of parents caring for their children. Ask the students: What do you see from the above story?

Parents have done a lot for us. Please tell the story of yourself and your parents: ① What impressed you most about your parents; (2) What makes you happiest about your parents.

3. Ordinary and hard work of parents: What do parents do? When do you go to work? Are the working hours long? Do you think your parents are hard? Why are they working so hard?

4. Express your gratitude to your parents.

Students, do you have anything to say to your parents now? What do you want to say to your parents most now?

Feeling after the activity

Through this activity, students can correctly realize that gratitude to their parents is a fine tradition of the Chinese nation and understand that as students, they should inherit and carry forward this fine tradition. At the same time, the students also realized the hardships of their parents' work, and realized the hardships of their parents from the bottom of their hearts. They have a grateful heart for their parents, help their parents do what they can in their daily lives, and understand their parents better when facing the contradiction between themselves and their parents. The activity also stimulated the students' sense of striving for strength, and the students tried to repay their relatives and society through their own practice and efforts.

Writing a composition for the investigation report Recently, there are more and more nearsighted people in school, especially senior students. On campus, many students who come in and out wear small glasses. A first-grade child has a childish face, but thick glasses have been hung on his nose. I wonder if I didn't see it. I was shocked at first sight. There are quite a few students wearing glasses! We really want to know why, so we have worked hard here. With the help of the teacher, we made a survey on the myopia rate and eye habits of young pioneers with myopia.

When looking for information, I saw a set of shocking figures: the incidence of myopia among adolescents in China is the second in the world, with an incidence rate as high as 50%. Among them, the myopia rate of primary school students is 22.78%, junior high school students are 55.22%, senior high school students are 70.34%, and college students are as high as 80%. The number of primary and secondary school students suffering from myopia accounts for 60% of the total number of students, with more than 60 million patients. Ranked first in the world. After reading this net article, I can't help but tremble and wonder: "Why are so many primary school students nearsighted?" Why big? I can't help shivering in my heart. We investigated the myopia rate and eye habits of young pioneers with myopia. After reading this net article, my face looks very naive, so I work hard here. But five, there are more and more nearsighted people in schools, and many students wear glasses. I saw a shocking figure of .78%, but heavy glasses have been hung on my nose. Among the fifth grade 130 students, 15 students are nearsighted, especially in the sixth grade, accounting for about 30% of the total number of sixth grade students, with an incidence rate of 50% and college students accounting for more than 80%. I found that the number of nearsightedness decreased gradually from grade one to grade four.

With the help of teacher Jiang, after statistics: "Why are so many primary school students nearsighted? 22%; Five out of 94 students in grade four are nearsighted: the incidence of myopia among adolescents in China is the second in the world; students in Grade One 12 are nearsighted, especially senior students. In September 2007, we got the students' eye chart, which aroused suspicion. At first glance, there are more than 60 million patients and 70 high school students. Many students who come in and out wear small glasses. On campus. Ranked first in the world. Children in the first grade? The number of students from primary school to university is increasing gradually. Among them, the sixth grade has increased; Eight of the 82 students in Grade Two are nearsighted. The number of students suffering from myopia accounts for 60% of the total number of students. I don't know the data without reading it. I found other information. Is myopia related to age? Junior high school students 55; 92 people in grade three have 7 nearsightedness! We really want to know why. With the help of the teacher? "I suspect that the cause of myopia is bad eye habits and increased learning tasks.

34% when looking for information; Forty-two students in grade six 133 are nearsighted, and the myopia rate of primary school students is 22? We made a further investigation into myopia? Why are there so many nearsightedness among college students? This is all from the heart. "What's the matter, I got the following myopia (recent vision is less than 5.

6. Investigation report composition 200 words water resources investigation report

Water is the source of all life, there is no life. With the development of modern science, the earth's environment has been seriously damaged by human beings.

When we arrived at Hanfeng Lake, we smelled a foul smell, so we took a glass and some water. I took a look. There are many tiny microorganisms in it. We observed carefully along the lake. There are industrial wastewater and domestic garbage around, which will cause serious water pollution if they are directly discharged into the river without professional treatment. It turns out that these pollutions are all items in our daily life.

We were picking up garbage, and along the way we saw several cleaners picking up garbage in the water. 1 In order to improve the river environment, all aspects of river courses and banks should be treated as soon as possible. First of all, pollution sources should be treated to prevent factories and pig farms from directly discharging sewage and feces into rivers for centralized treatment to avoid adverse effects on the environment. Then, the building materials (waste) in the riverside and river course will be removed, and the waterway will be rectified to further remove the garbage and sludge in Hanoi. After that, plant trees and turf by the river and establish green belts to avoid sand loss. 2. Educate coastal residents and all citizens on environmental protection to enhance their awareness of environmental protection. The environment of the river mainly depends on people's ideology, so people should consciously protect the river and protect the environment. In this way, a brand-new river will be presented to people forever. In a word, it should be clear that people themselves are also affected by environmental damage. We should fully understand the relationship between environment and human beings and the advantages and disadvantages of human beings changing the environment. The factors that affect water resources are far more than these. Although my investigation may not be mature enough, I hope to improve the status of environmental problems and water pollution problems in people's minds and make the problems improve day by day. In order to make our Hanfeng Lake more beautiful and rich.

┏ (^ω^)=

7. Investigation Report Composition Investigation Report on Eating Snacks

On the way to school every day, I always see most primary school students eating all kinds of snacks on their way home, such as: spicy hot dog sausage, Kobik potato chips, spicy French fries, cola candy, Aishangfei cake, Dole B-flavored potato chips, taro ice cream cups ...

I heard some parents say that children always ask them for money, saying that they want to buy books, pens and erasers, but when they get home, parents search their schoolbags, but they don't buy books at all, and the money is not returned to them. Parents always bow their heads when they ask about their children's money, but they can't refuse their children. I don't know if they really want to buy books.

Our school also has a canteen. I found that whenever the bell rings, there will be students rushing to buy snacks. At this point, the canteen has been packed. Some students are afraid of class, so they grab snacks and stuff them in their mouths. When the bell rang, they chewed snacks and walked back to the classroom unhurriedly. When they return to the classroom, the snacks in their mouths are gone!

In my opinion, students like to eat snacks very much. How many snacks should a pupil eat a day, a month and a year? To this end, I made a survey.

I met some children I know after school and asked them how much it costs to buy snacks a day. The results of my investigation are as follows: wealthy families are 5~25 yuan, well-off families are 5~ 10 yuan, and ordinary families are 1~5 yuan.