The Revelation of Nature in the Fourth Grade Essay About 350 Words Don t Score for Good Answers

After reading the book Animal World, I learned about the life characteristics and special abilities of woodpeckers and anteaters, and from them, I suddenly thought of a question, and at the same time got an inspiration:

In rural orchards, we often find pests burrowing into tree trunks and ripe fruits, and in order to protect the orchards, farmers have to constantly spray pesticides in large quantities. Not only is the cost high, but also when people eat it, the excessive pesticides make people daunting, if the pest control is not timely, people have to cut down those "incurable" fruit trees painfully. In the modern countryside, it is impossible to have so many woodpeckers to help the fruit trees to see a doctor.

Nature has taught us a lot of things, airplanes are based on dragonflies, and manicures are modeled after whales at the bottom of the sea, so I thought: why don't we build a lightweight exterminator based on the beak of a woodpecker and the tongue of an anteater? In this exterminator, we can install a computer chip, so that it can accurately detect diseased trees, and then, we can press a red button on the handle, from which a sharp, hooked steel pipe like a woodpecker's beak will pop out, it can accurately punch a very small hole in the tree of the pest, and then hook it out with a hooked steel pipe mouth.

What if it's termites? Don't panic, we can put the steel pipe mouth in first, and then, press the green jian, a tongue that imitates an anteater will bounce from it, and the long sticky tongue will be easily wiped out as soon as it "drills" into the hole.

From the woodpeckers and anteaters foraging, we got an inspiration and thus an innovation.

A wide variety of animals and plants, in the long process of evolution, in order to survive and develop, gradually have the ability to adapt to the changes in the natural world. Using their powers of observation, thinking, and design, humans began to imitate living things.

The first tools used by man, the wooden stick and the stone axe, were undoubtedly the natural wooden sticks and natural stones used; The use of bone needles is undoubtedly an imitation ...... fish bones

In ancient Greek mythology, which contains a wealth of knowledge of production, there are people who use feathers and wax to make wings and escape from the labyrinth; There is also the invention of the saw, which is said to have been inspired by the shape of the back bone of a fish and the palatal bone of a snake. In the 15th century, the German astronomer Müller created an iron fly and a mechanical eagle and flew them.

Around 18 years ago, Kelly, a British scientist and one of the founders of aerodynamics, imitated the spindle shape of trout and mountain sandpiper and found a streamlined structure with little resistance. Kelly also designed a wing curve that imitated a bird's wing, which greatly contributed to the birth of aviation technology. Frogs are amphibians, and sports workers have carefully studied the movement posture of frogs in the water and summed up a set of low-effort, fast swimming movements - breaststroke.

In addition, the webs made for divers are almost exactly shaped like the frog's hind limbs, which greatly improves the diver's mobility in the water.

Give it to me!!

Primary 4 Chinese Unit 3.

Inspired by nature.

There are many mysteries in nature, and today I discovered a small "secret", that is: I discovered why the ants moved and it would rain heavily tomorrow.

In the past, I was curious about this question. When I was seven years old, one day, when I was playing on the grass in the suburbs, I noticed a large group of small ants walking in a long line towards a small hole, and each of them had something like little sand on its body, and I thought to myself: What are these little sand grains?

My mind was full of question marks, and I went to my father out of curiosity and asked, "Dad, why do the little ants walk in a long line to the entrance of the small hole?" Every little ant has something like a grain of sand on its body?

Later, my father told me: "That's because every time the little ants encounter a stuffy situation, they will tell the "ant colony", and when the ant colony learns about this situation, they will move immediately, and the weather is hot and humid, and it will rain heavily the next day, and the little ants will find a small hole to shelter from the wind and rain, and they will move because their previous house will be damp, so they have to move." The little grains of sand on the little ants are the food of the little ants.

Oh! That's when I realized! I have one more small question, and that is:

Why can ants rain until the next day? Dad said, "Ants are the same as us humans, they also feel stuffy, so when ants feel stuffy, it will rain the next day."

I learned another truth. I also heard my dad say, "If people see ants moving, it will rain heavily tomorrow."

This also confirms the proverb, that is: ants move snake aisles, and there will be heavy rain tomorrow! "I know it's going to rain heavily tomorrow, so I wonder why it's so magical.

I remembered another sentence: I don't know what absolute truth is, but I am humble about my ignorance. I didn't know that little ants could help people so much, and I believed in another saying, and that is:

When they awakened, they said to me, "You and the world you live in are nothing but a grain of sand on the boundless shore of the boundless ocean. "In a dream I said to them:

I am the boundless ocean, and the world is but a grain of sand on my sandy shore. I also want to tell the ants, "You are not the youngest.

Nature is our inspiration and the teacher of mankind, and it brings people wisdom and imagination.

One sunny Sunday, I stumbled upon a small spider in a tiny corner of my house's bathroom. I was so frightened that I was about to trample the little spider to death, but I saw that it was preparing to weave its web, and I couldn't bear it, so I decided to see how it weaved it. I saw the little spider slowly spit out a little white filament from its mouth, and then crawled from one corner to the other side, so that the first thread was woven.

Then it weaved down the same thread as before, and after a while the web was almost finished, and I was so happy for the little spider that the little spider was still working silently. Seeing that the little spider was about to be completed, the naughty wind brother came to make trouble, and when it "whirred", the spider web was broken with a "tight" sound.

The poor little spider had to weave the web again, and it again did it with meticulous care in the same way it had been woven. This one, like the previous one, had just been less than halfway woven, and the web was broken again. In this way, the cobwebs broke several times, and they were still not finished.

I was a little bored, and I was about to walk away, and I thought to myself: the little spiders are not annoying, and they are still working hard, how can I be annoyed? So, I continued to crouch in the bathroom to see how the spiders weaved their webs.

In the end, after hard work again and again, it finally weaved a good spider web for the last time. Seeing this, I was touched by the perseverance of the little spider, and learned from it that you can't give up halfway, you must work hard, work hard and work hard to achieve the final success.

I'm waiting another 20 minutes for my homework.

I observe the carrying of ants. I saw that those little ants were carrying a piece of bread crumbs, and they were crawling faster than Zhuan, and they really wanted to call the ants a strong man! After a while, a small ant ran out from under the crumbs and hurried into the nest, and then a large, strong ant crawled out with the little ant.

This little ant is here for help.

With the help of the big ants, the little ants were much faster, and I guess they must have been shouting one-two-one, one-two-one, just like we did during recess. After a while, the ants came to a hardest stage up the small dirt slope! And on the small dirt slope is the ant nest.

I saw that the ants still didn't give up, trying to lift up step by step, and one or two of them would take turns to run to the back of the team to support, oh, what a spiritual guy! I watched the ants work so hard, and my love couldn't help but explode! I pushed the ants up with a small twig, and in the blink of an eye, they were at the nest!

Finally, after everyone's concerted efforts, the ants finally transported the crumbs to the nest.

Although ants are small insects, this humble little guy gave me inspiration: unity is strength, perseverance is victory 450 words excellent essay for fourth grade: the inspiration of nature.

The golden pig reports the joy of bai, welcomes the blessing of Naxiang;

On the first day of the Lunar New Year, du is here

New Year's greetings to you!

Fu dao] [fu] [fu].