Life knowledge composition

1. Composition of 400 words on common sense in life

Tips in life

Students, do you know? It is of course important to work hard when doing things, but it is even more important to have scientific and clever methods.

Once, when I was writing calligraphy, I got a large piece of ink on my body, and I was so anxious that I was like ants on a hot pot. I happened to see my uncle watching the special program "Home Tips" broadcast on CCTV, and I sat down and listened attentively. The female host talked about many tricks. Among them, I saw a clever way to use rice to wash ink. She told us that if the ink accidentally stains the clothes, don’t panic. First, put some hot rice on the place where the ink is, and then continue to wash it with rice. After scrubbing, all the ink on the clothes will slowly stick to the rice. The rice will turn black. Then replace it with new hot rice. Repeat this several times and the ink stains on the clothes will completely disappear. Soak the clothes with clean water, then apply soap. After a few minutes, scrub the ink marks with your hands. This will wash them clean. Finally, adding a few drops of vinegar in the water will make the clothes brighter and remove the clothes. Let it cool and dry, and it will be as good as new. Later, I tried it, and the result was exactly the same as the new one. Later, I told my mother this little tip. After my mother knew about it, she would not worry about ink stains on clothes that cannot be washed off.

Through this laundry, I also learned a lot of tips in daily life from TV, such as: the wonderful use of vinegar in the kitchen, adding vinegar when cooking fish will remove the fishy smell; Adding some sugar to the water of flowers can extend the flowering period...

There is no limit to learning. We have to learn all kinds of knowledge. What we learn is beneficial to us. What do you think?

2. Composition on life tips

1. To make fluffy and delicious rice, just soak the rice in water for half an hour. If you are in a hurry, you can wash the rice with cold water first, drain the cold water, add it to boiling water, stir it up and down evenly, and then put it in the rice cooker.

2. Keep flowers fresh. Mix tap water and bleach water in a ratio of 2:1, and use the prepared water to arrange flowers to maintain the beauty of flowers for a long time.

3. Remove cigarette smell. Nowadays, smoking seems to be a trend for both men and women. Smoking indoors is filled with smoke and is harmful to health. If you realize this problem, you can use gauze dipped in vinegar to wave it indoors or light a candle, and the smell of smoke will be eliminated. .

4. When buying a gift box to give as a gift, the price label is difficult to remove. If you pick it with your hands, it will be dark and dirty, which makes it even more unsightly. If you use a hair dryer to heat it up and then tear it off, it will be easy. Tear it off without leaving any trace! If you remove the adhesive tape or tape on the wall abruptly, it will damage the object. You can use a steam iron to remove it easily.

5. How to prevent candles from "crying"? Before using birthday candles, put them in the freezer of the refrigerator for 24 hours before inserting them into the cake. After lighting, the wax will not flow down and stain the cake.

6. Every girl has this kind of trouble. After finally going to the beauty salon to get her hair done, her hair is deformed when she wakes up! In fact, this situation is preventable. Just lay a smooth silk scarf on the pillow before going to bed. This way, your hair will not be messed up and you can maintain a beautiful hairstyle!

3. A 500-word essay on common sense in life

Common sense in life Today is the first day of vacation. In the morning, without the "disturbance" of the alarm clock, I actually slept until dawn and didn't get up until eight o'clock. After going downstairs, I exercised first, picked up the skipping rope and jumped 200 times in the yard. At this time, I suddenly found that the water in my fish tank (a small pond made of cement boards) had a thick layer of ice. “Oops,” I blurted out, “the little goldfish must have been frozen to death.

"I walked over quickly, picked up a wooden stick and knocked hard on the ice. However, the ice was too thick. It took a lot of effort to break it open. Haha, not a single one of my goldfish died. , still swimming freely! I was wondering: there was a thick layer of ice on the water, but why didn’t the fish freeze to death? My parents were not at home, so who should I ask this question? By the way, look it up online. Well, I turned on my computer and searched on Baidu for "There is a thick layer of ice on the water, but why the fish were not frozen to death", and I quickly found the relevant information: Because water has the characteristic of abnormal expansion, when the temperature is The density is maximum at 4 degrees, so when the temperature is lower than 4 degrees, the density of water on the surface becomes smaller. The same volume is lighter than the water below and cannot flow downward, so it can only float on the top, isolating the connection between the water below and the air. The 4-degree water below cannot dissipate heat and remains at 4 degrees. Therefore, in winter, a thick layer of ice forms on the water surface, while the water below is still around 4 degrees. This layer of ice is like covering the water surface. Just like a thick quilt, no matter how cold the weather is outside, the water under the ice can be kept at about 4°C, so our fish can still swim around without being frozen to death, but they are not as lively as in summer.

Oh, it turns out that there is a lot of scientific knowledge around us. As long as we pay attention and think carefully, we can understand many truths and learn a lot of scientific knowledge.

p>

4. Write an essay on the topic of "Little Common Knowledge in Life". No reference is allowed

"Little Common Knowledge in Life"

If I were asked to use one action to convey happiness, I would choose to smile. ; If I am asked to use a language to communicate my feelings, I choose to smile; if I am asked to face life in one way, I choose to smile.

A smile is a simple and sincere expression, a simple one. And the language full of true feelings. This relaxed expression, this silent language, seems ordinary, but we can't lose it, just like a fish can't live without water, and a bird can only sing with a smile. Those who sing the songs of life are happy. They will not complain about the many hardships in life and the ups and downs in life. Therefore, it is important to live with a smile.

Listen to grandma. It was said that a young man was admitted to the hospital due to a sudden serious illness. After the test results came out, the doctor also asked us to prepare for the worst. The young man overheard the news, but he did not lose it. Hope for life. He still has that beautiful and kind smile on his face, smiling at his family, smiling at the nurses, and smiling at life. He will pick up the mirror and smile at it every day. He was also smiling, so he said happily: "If God closes a door for me, he will definitely open a window for me." "Shortly after the operation, he walked out of the hospital with a smile, even though the operation made him lose feeling in his right hand and right foot. Then, grandma said excitedly: "This person is your grandfather. ”

I felt refreshed. Now my grandfather can take care of himself completely, and he can calligraphy well with his left hand. Everything has changed, but what has never changed about my grandfather is that he faces life with a smile. .

We can reject mediocrity and wind and rain, but we can never reject the 45-degree arc at the corner of our mouth, because a smile can open our hearts, stir up the spring breeze, and melt selfishness and narrowness. Snow; Smiling can help us learn to be confident, fuel the fire of fighting spirit, and overcome difficulties and obstacles; Smiling can help us play the music of life and forget the sadness and depression in our hearts.

Smile like a flower, with Decorate yesterday with gratitude, grasp today with sincerity, and ignite tomorrow with confidence.

Because with a smile, life is better!

5. Composition on common sense in life

1. If you feel like you are going to be burned to death after eating spicy food, put a little salt in your mouth and hold it in your mouth. Rinse your mouth and it will stop being spicy; 2. If your teeth are yellow, you can chew peanuts and hold them in your mouth, and brush your teeth for three minutes. It is very effective; 3. If there is a small area of ??skin damage or burns or scalds, apply a little toothpaste , can immediately stop bleeding and relieve pain; 4. Often there are unsightly tea stains left in cups filled with tea, wash them with toothpaste and they will be very clean; 5. Open your mouth slightly when you nod eye drops, so that your eyes will not blink randomly; 6. If there is an ulcer in your mouth, just apply vitamin C to the ulcer. After it dissolves, the ulcer will be basically healed; 7. If small dust gets into your eyes, close your eyes and cough hard for a few times, and the dust will come out on its own; 8. After washing After the face, use your fingers to dip some fine salt into the nose and gently massage it on both sides, and then rinse with water. The blackheads and acne will be removed, and the pores will become smaller; 9. When you have just been bitten by a mosquito, apply Apply soap and it will not itch; 10. If your throat or gums are inflamed, cut the watermelon into small pieces at night and eat it with salt. Remember to do it at night, then the symptoms will be relieved and you will be fine the next day; 11 .Blow the hair dryer on the label, and when the glue of the label is hot, you can easily tear off the label; 12. If you are afraid of wrinkles when bringing clothes while traveling, you can roll each piece of clothing into a roll; 13. Drink some vinegar when you hiccup, and you will see immediate results; 14. If you eat something with a peculiar smell, such as garlic and stinky tofu, just eat a few peanuts; 15. To treat coughs, especially dry coughs, before going to bed at night, Fry the eggs with pure sesame oil, add a little more oil, don't add any seasonings, eat it while it's hot and then go to bed, the effect will be obvious after eating it for a few days; 16. A girl with thick wrists wants to wear a thinner bracelet. You can't wear it by force. You should put a plastic bag on your hand and then wear the bracelet. It is very easy to wear and will not hurt your hand. The same method is used to remove it; 17. Chestnut skin is difficult to peel, peel off the shell first, and then Put it in the microwave and spin it, take it out and rub it while it's hot, and the skin will fall off; 18. When arranging flowers, add a drop of dishwashing liquid to the water, which can last for several days; 19. Put the walnuts in the pot Steam for ten minutes, take it out and put it in cold water and then smash it open, you can take out the complete peach kernel; 20. Put the shrimp into a bowl, add a little salt and edible alkali powder, rub it with your hands for a while and then soak it in water. Then rinse with clean water, which will make the fried shrimps as transparent as crystal, tender and delicious; 21. When frying meat, soak the meat in baking soda water for ten minutes, pour out the water, and then add the flavor. The fried shrimp will be very delicious. Tender and smooth; 22. Soak the remaining tea leaves in water for a few days and then pour them on the roots of plants to promote plant growth; 23. Dry the remaining tea leaves and burn them in toilets or ditches to eliminate stench and repel mosquitoes and flies. ; 24. How to re-cook rice with uncooked rice: You can use chopsticks to poke some holes in the rice that go straight to the bottom of the pot, sprinkle a little rice wine and simmer again. 25. If only the surface is uncooked, just flip the surface to the middle and simmer again; 26. Remove it skillfully Screen windows are greasy: Put the cigarette butts left over from washing clothes and smoking in water. After dissolving, use them to clean glass windows and screens. The effect is really good; 27. Just put a small piece of chalk in the jewelry box. This will keep the jewelry shiny; 28. The sticker traces on the surface of tables and bottles can be wiped with wind oil; 29. ??Always carry a small dry battery in your bag when you go out. If your skirt has static electricity, put the positive terminal of the battery on Just wipe the skirt a few times to remove static electricity; 30. No matter which part of the shoe rubs your feet, just apply a little white wine on the place where the shoes rub your feet to ensure that it will not rub your feet; 31. When mixing vegetables , if it is necessary to blanch the vegetables, it is best to use the water used to blanch the vegetables as much as possible.

For example, when making dumplings, an appropriate amount of blanched water can be put into the meat filling, which not only ensures nutrition, but also makes the dumpling filling delicious and soupy; 32. Feet are prone to sweating in summer, so use light water every day. Soaking your feet in salt water can effectively deal with sweaty feet; 33. Sunbathing after swimming in summer can prevent skin strain and other diseases; 34. Pillows are prone to moisture and mold breeding in summer, and frequent exposure to the sun is good for your health; 35. Eat more barley and adzuki bean porridge, etc. Moisture strengthens the spleen and can prevent heat stroke; 36. Prevent insomnia: talk less before going to bed, avoid drinking strong tea, do not use your brain before going to bed, and wash your feet with hot water and vinegar; 37. Honeysuckle has the effect of evacuating rheumatism. Decoction the juice in water and mix it with honey to relieve heat; 38. Drinking tea after eating too fatty food can stimulate the autonomic nervous system and promote fat metabolism; 39. Lack of sleep will make you stupid, and you need eight hours of sleep a day. , having a nap habit can delay aging; 40. Hands can easily become dry and rough, soaking hands with vinegar for ten minutes can protect your skin; 41. In summer, wipe the mat with water added with toilet water to keep the mat fresh and clean. Of course, it is best to wipe along the lines of the mat so that the toilet water can penetrate into the lines and gaps of the mat, so that the cool and comfortable feeling will last longer; 42. Eat more tomatoes, citric acid and other acidic vegetables and fruits for breakfast, which is good for nourishing the liver; 43. Refreshing and antipruritic. When washing your hair or taking a bath, add five or six drops of toilet water to the water, which can have a good cooling and sterilizing effect, remove prickly heat and relieve itching; 44. Grapes contain sleep-auxiliary hormones, and regular consumption can help sleep; 45. Drinking more tomato soup in summer can not only obtain nutrients, but also replenish water. Tomato soup should be cooked and cooled before drinking. The lycopene contained in it has certain effects on resisting prostate cancer and protecting myocardium, and is most suitable for men; eating acidic foods Brushing your teeth immediately with substances will damage your dental health; answer supplement 46. When the skin is broken due to trauma, apply toothpaste on the injured area to reduce inflammation and stop bleeding, and then bandage it as a temporary first aid medicine, which is more effective than medicated toothpaste.

6. 600 words of common sense in life, composition

Today, my mother is not at home. I dug out a book that my mother collected when she was a child and read it. My mother had warned me many times that if her book was damaged, even if it had a hole in it, she would have trouble with me.

I carefully opened the book and read it with relish. The content of the story deeply attracted me.

But at this juncture, when I was drinking water, my hand shook and I accidentally poured a glass of water onto my mother's book. I was stunned and didn't know what to do.

I hurriedly picked up the hair dryer and started blowing it, but after a while, the book not only did not dry, but became wrinkled more and more. My mind immediately entered a state of chaos and I didn't know what to do. Suddenly, a brilliant idea emerged from my mind.

I picked up the iron that I had never used before, plugged it in, and ironed it carefully. After a while, my mother’s books smelled like burning. I was shocked and hurriedly ironed them. When I picked up the iron, there was already a light mark on the book. Just when I was so anxious that I was about to cry, my aunt appeared out of nowhere, smiled and said to me, "What's wrong?"

I looked like I was about to cry without tears, and hurriedly asked her. My aunt told me about my "unfortunate experience". After hearing this, my aunt burst out laughing: "Liu Jun, if you do this, it will be strange if the book is not wrinkled. Let me teach you a secret..."

I followed my aunt's method. I put my mother's books in the refrigerator. After almost an afternoon, I took them out. The books were no longer wet. I breathed a sigh of relief: I could finally "do business" like my mother!

But I still don’t understand why this happened, so I checked the information and found out:

If the book is accidentally soaked with water, put it in the sun , the pages will become wrinkled and uneven, which detracts from their appearance.

The evaporation of water is related to temperature. The higher the temperature, the faster the evaporation. The lower the temperature, the slower the evaporation. When water evaporates, it takes away heat.

Expose the wet book to the sun. Since the moisture content of each page in the book is different, and the drying time is sequential, the part that evaporates quickly has a high temperature, and the part that evaporates slowly has a low temperature. Due to thermal expansion, the expansion of the paper will also increase. Not the same, causing uneven wrinkles on the paper.

If the book is placed in the freezer, the moisture in the paper will turn into ice, and the ice in the refrigerator will directly turn into water vapor. In physics, it will become a sublimation phenomenon. This change speed is slow, and the contents of the book will change slowly. The temperature of each wet paper in the freezer is almost the same, so there will be no difference in expansion. Therefore, after the book dries, it can return to its original appearance.

Oh, that’s what happened! I finally knew the secret.

7. Life requires knowledge, a 400-word essay

There is a kind of love that is silent, but it is enough to move people; there is a kind of love that has no regrets, even if it means sacrificing everything Don’t ask for repayment. When the steps in the wind and rain are tired, when life in the outside world encounters difficulties, when the difficulties in your heart need to be confided, there is a door always open for you. Although this house is not gorgeous, it is enough to block the scenery outside the window. Wind and rain can make you rekindle your passion for life. This is home, a harbor full of love. I remember it was a rainy day. The school bell just rang, and the students came out like a tide. I also stepped forward I ran towards my grandfather to pick me up with excitement. Suddenly, I felt someone push me hard, and I fell into the puddle. Suddenly, my hands, clothes, shoes and socks were covered with mud. My whole body was covered with mud. It's wet from top to bottom and so cold! I saw the person who pushed me turned around and ran into the crowd. I started crying, but no one came up to help me. I walked out of the school gate sadly. Grandpa saw it and immediately took out a card from his pocket. I held the handkerchief in my hand, making my stiff hands feel warm. Then I got on the bicycle and pedaled away quickly. The rain gradually became lighter, and the cool breeze hit my hands and face. It was as if it had penetrated flesh and blood. I lay on my grandfather’s back, and my grandfather’s back was very warm. I only heard the "creak" sound of the bicycle, which became more and more rapid. Along the way, my grandpa kept asking me, "Is it cold?" "It's not cold" and told me not to worry. I finally returned home, and my grandfather helped me change clothes and prepare meals non-stop. My father, mother, and grandma all came to take care of me. After a while, my cold body gradually relaxed, and the dirty clothes It has also been replaced. I feel the warmth of home. Here, there is no rain, snow, wind and cold, only the stove built by family is burning slowly. Although the wind and rain are howling outside the window, the warmth of home is enough to melt the frost in your heart.

8. An essay on daily life knowledge of more than 600 words, urgent

In daily life, people hope that the air in their homes will be fresh, but for some reasons, there will always be some harmful substances in the room. Odor. If it is not eliminated, it will not only affect the air in the room, but also affect human health. At the same time, it will also give you a bad mood. Below are some common methods for eliminating odor in rooms. Do you think they are suitable?

Musty smell During the rainy season every year, the house is very humid. The suitcases, closets, and drawers in the living room often emit a musty smell. You can put a piece of soap in them to remove the musty smell, or you can The dried tea leaves are put into gauze bags and distributed everywhere, which not only removes the musty smell, but also emits a hint of fragrance.

The smell of cigarettes is modern. Whether you are a man or a woman, smoking seems to be a trend. Smoking indoors is filled with smoke and is harmful to health. If you realize this problem, you can use gauze dipped in vinegar and wave it indoors. Or light a candle and the smoke smell will be eliminated.

Kitchen odors When cooking in the kitchen, the food smells very strong. You can put a little vinegar in the pot and heat it to evaporate, and the kitchen odors can be eliminated.

Paint smell: Newly painted walls or furniture have a strong paint smell. To remove the paint smell, you only need to put two basins of cold salt water indoors. The paint smell will be gone in one to two days. You can also remove the onions. Soaking in a basin is equally effective.

Kerosene smoke smell When cooking with kerosene stove or briquettes, thick black smoke will be produced during the combustion process. If you add a few drops of vinegar to the kerosene or briquettes, the smoke smell can be reduced or eliminated.

The air in the room is dirty. You can put a few drops of perfume or toilet water on the light bulb. When it is heated, it will emit bursts of fragrance, which is refreshing.

Stew meat odor When stewing meat, add a few orange peels to the pot to remove odor or greasiness and increase the flavor of the soup.

Fishy smell If there is a fishy smell in the cooking pot, you can heat the pot and put some used warm tea leaves, and the fishy smell will disappear.

Sourness of Tofu When you find that the tofu is sour, you can soak it in 5% soda solution for half an hour, rinse it, and the sourness will be eliminated.

The smell of flower fertilizer. When growing flowers indoors, if fermented solution is used as fertilizer, it will emit a smell. At this time, fresh orange peels can be chopped and mixed into liquid fertilizer for watering together. The smell will be Can be eliminated.

Trash can odor When metal garbage emits a smell, you can light the waste newspaper and quickly put it in, and the smell will be eliminated.

Bathroom Smell Although the bathroom at home is frequently flushed, it still smells bad. You can open a box of cooling oil or essential oil and place it in the corner of the bathroom, which can deodorize and repel mosquitoes. You can also place a small cup of balsamic vinegar and the odor will disappear naturally.

9. How to write a composition about life tips

There are many tips in life, such as: using ginger to wipe the knife will not rust; using rice water to wash the ink on the clothes It’s fast and good; use Coke to clean the toilet; I also have some tips for you today.

Here’s what happened: One Sunday, after class, I went to my aunt’s house for dinner. When I entered the door, I Seeing water all over my aunt's house, I took off my shoes and asked, "Aunt, what are you doing?" My aunt turned back, looked at me, and said, "Oh, the refrigerator is frozen, I'm shoveling the ice. !” I said, “How do you shovel it?” My aunt replied, “Turn off the power first and use a spatula to shovel it.” I said “Oh” and thought, “Isn’t it better? How?" I thought again: "Ice can be melted by heat, so what can I do?" I asked myself, frowning and thinking. There was no progress at all on my aunt's side, and she said to herself: " Wait! It might melt in the afternoon!" I was also thinking: "How about using a winter stove?" This idea flashed in my mind, but I was immediately rejected, "Who would move such a big one? Stove to bake ice? Not to mention it's so heavy!" I thought again: "If this doesn't work, just change it! But what will work?" At this time, my aunt was drying her hair with a hair dryer, and I suddenly realized, "It turns out. What I'm looking for is something that is light and hot. "Things are far away in the sky, but they are right in front of me." I ran over and got the hair dryer.

I turned on the hair dryer and said, "Whew!" With a sound, hot air blew out from inside. I held it with my hand and blew it on the frozen area for about ten minutes. Then I used a spatula to shovel the top of the ice. With a "pop" sound, the huge piece of ice It fell from above to the ground. "Success!" I shouted excitedly, and my aunt also praised me for using my brain. Then I used the same method to remove several "big guys", and the refrigerator was out of ice!

10. Composition on life tips

1. To make fluffy and delicious rice, just soak the rice in water for half an hour.

If you are in a hurry, you can wash the rice with cold water first, drain the cold water and put it into boiling water, stir it up and down evenly, and then put it in the rice cooker. 2. Keep flowers fresh.

Mix tap water and bleach water in a ratio of 2:1, and use the prepared water to arrange flowers to maintain the beauty of flowers for a long time. 3. Remove cigarette smell.

Nowadays, smoking seems to be a trend for both men and women. Smoking indoors is filled with smoke and is harmful to health. If you realize this problem, you can wave or light gauze dipped in vinegar indoors. A candle will remove the smell of smoke. 4. When buying a gift box to give as a gift, the price label is difficult to remove. If you pick it with your hands, it will be dark and dirty, which makes it even more unsightly. If you heat it with a hair dryer and then tear it off, it will be easy to tear off without leaving a trace. trace! If you remove the adhesive tape or tape on the wall abruptly, it will damage the object. You can use a steam iron to remove it easily.

5. How to prevent candles from "crying"? Before using birthday candles, put them in the freezer of the refrigerator for 24 hours before inserting them into the cake. After lighting, the wax will not flow down and stain the cake. 6. Every girl has this kind of trouble. After finally going to the beauty salon to get her hair done, her hair is deformed when she wakes up! In fact, this situation is preventable. Just lay a smooth silk scarf on the pillow before going to bed. This way, your hair will not be messed up and you can maintain a beautiful hairstyle.