Write a composition of about 600 words on the topic of "Science".

I will sing praises again and again, praising our great achievements in applied science and the greater progress you will bring. In fact, we are in the era of applied science, in such a country of applied science.

It's wrong to say that I'm not talking now! Just as some people think that uncivilized Indians are not rich in economy and unhappy in life, I don't think so. In fact, it is of profound significance that children in enlightened countries like playing "India" games so much.

Great applied science makes us reduce labor and make life comfortable. But why does it bring us so little happiness now? The simple answer is: because we haven't applied science to practice reasonably.

In wartime, science serves our possible poisoning and mutual harm; In peacetime, it makes our life hasty and unstable. Instead of liberating us from mental work on a large scale, it gives people slaves-people spend most of their time in long, monotonous and disgusting jobs and continue to worry about their poor rations.

You may think that the songs sung by old people like me are not good, but I have a good purpose in saying this-pointing out the importance and future of science.

In order to make your work benefit mankind, it is not enough to know only the applied science itself! To care about human beings and their fate, we must always cultivate interest in studying various technologies; Concern about the unresolved huge labor source and commodity distribution-for the establishment of our ideology, it brings happiness to all mankind instead of disaster. Never forget this in your charts and equations.

Reading:

Science in Poetry (Excerpt)

Text/Ye Yonglie

As the saying goes, three sentences are true.

I remember that a film director read a Tang poem and filmed Du Mu's poem "Mountain Walk": "Looking at the cold mountain from a distance, the stone path is oblique" is a distant view, "Someone is there" is a panoramic view, "Stop in the maple forest and sit late" is a middle view, and "Frosty leaves are red in February" is a close-up. He also thinks that the last two sentences of Li Bai's masterpiece "Thinking about a Quiet Night" are "subjective shots"-"Looking up, I found it was moonlight" is looking up, and "Sinking again, I suddenly thought of home" is looking down.

Painters read ancient poems and like to analyze the colors in them. She thinks that "Red in Green" and "An Almond Out of the Wall" emphasize warm colors, but use cool colors as a foil. "White hair floats green water, and red palm stirs green waves" vividly depicts the bright colors of wild geese in the water, while Su Shi's "Dark clouds turn over the ink and don't cover the mountains, and white rain jumps over the boat" is an ink painting.

I like Li He's dreamlike. The poet began Conan's dream of roaming in space. What scenery did he see when he "looked back at the world"? Ah, "Looking at nine cigarettes in Jizhou from afar, a sea cup falls down"! It turned out that Kyushu, China, which he saw was like nine smoke ideas, and the sea was like clear water in a cup. This scene is as real as what astronauts saw in space. However, Li He lived in the Tang Dynasty, never left the earth, and never heard of "space navigation". Besides, he only lived 27 years. I repeatedly recited "Dream of Heaven" and deeply admired the young poet's rich scientific imagination!

I think Wang Zhizhi's famous saying, "Go up a storey still higher and broaden your horizons by 300 li" completely conforms to the laws of geometry. Indeed, "if you look far, you must climb high and climb high to see far." The higher the observation point, the wider the visible range, which is the so-called "A" (Du Fu's "Looking at Yue"). In ancient times, people built tall beacon towers. Later, people first seized the commanding heights in combat. Until now, people have used the "high superiority" of airplanes and artificial satellites for reconnaissance, exploration and photography. Isn't the scientific principle the same as Wang Zhihuan's poems?

Xin Qiji has lived in the countryside for more than 20 years, and his words contain rich agricultural knowledge. In Xijiang Yue, it is said that there is a good harvest in the fragrance of rice flowers, and listening to the sound of frogs reveals the organic connection between frogs and good harvest. Frog, commonly known as "goo goo bug", is an insect-catching animal. Frog sounds are endless, insects are destroyed, rice flowers are fragrant, and grains are abundant. Xin Qiji wrote a vivid sentence in "Partridges and Days", which shows that the Song Dynasty has learned sericulture skills and is very good at mastering sericulture season. His famous sentence in Bodhisattva Man, "Castle Peak can't be covered, after all, it flows eastward", conforms to the laws of modern thermodynamics, and shows that any object has a tendency to automatically reduce its energy, even Castle Peak can't be covered!

In Du Fu's poem "To Eight Guards", there is an inconspicuous poem-"Cutting Spring Leeks in the Night Rain". In my opinion, from these five words, we can verify a lot of knowledge about leek cultivation in the Tang Dynasty: First, leeks are commonly known as "lazy vegetables". Plant once and cut many times. I didn't know until I planted leeks in the Tang Dynasty that leeks are perennial herbs and can be cut very long, rather than uprooted and collected. Second, the Tang Dynasty knew that leeks in spring were tender and delicious, and they knew how to cut them at night in the spring rain. At that time, the cut leeks were watery and could be used as delicacies.

Interestingly, I often find that some poems are rare in literature, but rare in scientific research. For example, many people have recited the first two sentences of Li Bai's poem "Into the Wine"-"B". In fact, after "flowing to the sea" turns into steam, it is still "backflow", or it comes from the sky, falls into the Yellow River and then "flows to the sea", and so on.

China is a country of poetry. Over the years, many poets have "led the way for hundreds of years" and written many long poems and short sentences. However, people are used to judging, selecting, interpreting and commenting on poetry only from the perspective of literature. In fact, poetry is scientific, so we might as well examine, select, annotate and comment on poetry from a scientific perspective.

Read carefully

[Exhibition of Excellent Works]

How far is the scientific myth from you and me?

224500 Jiangsu Yancheng Junior High School Lu Yi

When the Forest World Science and Technology Festival arrived, Aunt Chicken asked a question on the blackboard: Students, do you think science can create myths? Please use your imagination and do some scientific experiments to prove your idea.

As soon as Blue Cat, Naughty and Feifei came back, they plunged into the lab.

First, seawater can also quench thirst.

Just entering the laboratory, Blue Cat became thirsty, so she went to pour water, but suddenly the water was stopped. Blue Cat thought: How can the sea water be desalinated?

After five days of experiments, Blue Cat finally created a method-distillation. Because desalinating seawater means separating salt from seawater.

This method is annoying.

Blue Cat connects several evaporators in series, so that seawater enters the first evaporator and is indirectly heated by introducing heating steam. Seawater is heated and evaporated to generate secondary steam, which is introduced into the next evaporator to heat the steam, and seawater is evaporated again. This cycle forms multi-effect evaporation and finally condenses into fresh water.

Blue cat drank the fresh water purified by seawater and thought: seawater can also quench thirst. Distillation is really good!

Second, it is no longer a joke to "encourage others by pulling out seedlings".

Naughty entered the lab, still thinking about the joke of "pulling out seedlings to help others" told by the blue cat on the road. He thought: Can you stop making jokes about "pulling out seedlings to encourage them"?

Naughty after six days of thinking and experiment, but all failed. On the seventh day, naughty eyes lit up after reading Science and Technology News of Forest World. Can it be solved by genetic technology?

So Naughty extracted a gene from a fern that can make crop seedlings grow rapidly and implanted it into crop seedlings. A few days later, the crop seedlings implanted with the new gene really skipped the seedling stage like being pulled out, and soon grew tall and strong.

Looking at the crops in front of me, I thought mischievously: pulling out seedlings can also help, and genes have helped me realize my dream!

3. A light bulb without electricity

Soon after Feifei returned to the laboratory, the power went out suddenly. Feifei thought: Don't you use electricity to make a light bulb? Feifei began to study.

Where there is a will, there is a way. In seven days, Feifei finally invented the light bulb without electricity. As long as the antenna is close to the light bulb, the mercury vapor inside is stirred by electromagnetic waves, which can emit ultraviolet rays, and its life may be longer than that of ordinary light bulbs.

Sitting in the bright light, Feifei thought: the light bulb doesn't need electricity, it's all realized by wisdom!

Fourth, scientific myths are created in our hands.

Blue Cat, Naughty and Feifei, three science and technology enthusiasts, with their fantasy, wisdom and experiments, have successfully completed Aunt Chicken's scientific and technological homework.

Comments: This article has a novel idea, and uses the cartoon stars Blue Cat, Naughty, and Fei Fei in the cartoon "Blue Cat Naughty Three Thousand Questions" that primary and secondary school students love to see, and holds extraordinary materials. The four subheadings, closely surrounding the topic of "science", are clear at a glance and closely related to the theme, adding a lot of color to the article.

Only white iodized salt is accepted as a gift.

224500 Jiangsu Yancheng Junior High School Lu Yi

Aunt Chicken heard that her four apprentices, Blue Cat, Feifei, Naughty Bag and Fat Boy, all made a fortune in the sea, all made of iodized salt. So she decided to use her vacation to visit them.

Mao Lan clinic

Far away, Aunt Chicken saw a long queue at the door of Blue Cat Clinic, with men, women and children.

Aunt chicken walked into the clinic with vigorous steps. When the blue cat in a white coat saw Master coming, she quickly stood up and said, "Oh, it's Master, your old man. Please sit down quickly. Let the blue cat help you wash your feet, eliminate fatigue and cure beriberi! " After that, his assistant brought a pot of hot water, and Blue Cat put some iodized salt into the pot. While stirring the water, he introduced to Aunt Chicken: "Master, you may not know that washing your feet with iodized salt can not only prevent beriberi, but also be very comfortable."

Aunt chicken seems to feel much more relaxed after washing her feet. Seeing that Blue Cat was too busy, she went to be naughty.

Tao Qi beauty salon

Far away, Aunt Chicken saw many cars, cars, motorcycles, bicycles and various models lined up at the entrance of the naughty beauty salon.

Aunt chicken walked into the beauty salon at a brisk pace. When the naughty boy in a white coat saw Master coming, she quickly stood up to meet him: "Oh, it's Master, your old man. Please sit down quickly and let the naughty in the white coat massage for you. " Aunt chicken had no choice but to let nature take its course. I saw that the naughty boy first stirred a spoonful of iodized salt with a few drops of water, and then dipped his fingertips in iodized salt water, from top to bottom, from outside to inside, starting from aunt chicken's forehead and face, and doing a circular massage while smearing. After a while, the salt water on Aunt Chicken's face dried up and turned into white powder. At this time, naughty people will rinse the salt water with warm water.

After the massage, Aunt Chicken felt that her skin seemed smooth but not greasy. Seeing that Naughty was too busy, she went to Fat Boy's house.

Fat boy restaurant

Far away, Aunt Chicken saw many people coming in and out of the fat restaurant.

Aunt chicken walked lightly into the fat restaurant. A fat boy in a white coat saw Master coming, and she quickly stood up to meet him: "Oh, it's Master, your old man. Please sit down quickly and let the fat man cook for you. " After a while, the fat boy brought a plate of peaches to Aunt Chicken. Peaches are fresh and lovely. The fat boy introduced to Aunt Chicken: "Master, this is a peach lightly washed with iodized salt water, which can sterilize and quickly remove the fine hairs on the peach." While speaking, the waiter served the second course, "Braised pork belly". The chicken was tasted, and it was delicious, with no peculiar smell. The fat man also introduced the "secret" to Aunt Chicken: "This is also the usage of iodized salt and alkali. If you want to rub it repeatedly, you can remove the odor. "

Chatting while eating, unconsciously, the chicken aunt is full. Seeing that the fat man was too busy, she went to Feifei's house.

Feifei specialty store

Far away, Aunt Chicken saw a lot of people crowded together at the entrance of Feifei Store, and people were crowded.

Aunt chicken, come here quickly. It turned out that everyone was snapping up iodized salt, and Feifei was so busy that she was sweating. She saw that Feifei was too busy and left without saying hello to Feifei.

On the way home, Aunt Chicken thought, "I don't know until I see it. Iodized salt is really important and life really needs it. " No gifts this year, only white iodized salt. "

Comments: This article has two characteristics: First, the form is novel. Using the genre of fairy tales, the author takes the activities of Aunt Chicken visiting four apprentices, Blue Cat, Feifei, Naughty Boy and Fat Boy as clues, and designs four subheadings, namely Blue Cat Clinic, Naughty Boy Beauty Salon, Fat Boy Hotel and Feifei Store, which all give people a refreshing feeling. The second is technical expression. The whole paper is cleverly conceived around the theme of "scientific prevention and treatment of iodine deficiency disorders" Blue Cat Clinic skillfully conveyed the role of iodized salt water in medical treatment, Naughty Bag Beauty Salon skillfully conveyed the role of iodized salt water in beauty treatment, Feizi Hotel skillfully conveyed the role of iodized salt water in dietotherapy, and Feizi Store naturally summarized the important role of iodized salt in social life. At the end, the phrase "there is no ceremony this year, only white iodized salt is accepted as a gift" played a finishing touch.