Not long ago, I decorated the screen window. Every night, there are always two or three things crawling around on it. My mother said, "This is a gecko." I was so scared that I never dared to go near the screen window.
However, in biology class, the teacher just let us observe how the gecko, the little animal I am most afraid of, eats mosquitoes and insects. In the next biology class, we will also talk about our observations! In order to finish my homework, I had to bite the bullet and observe. At night, the gecko climbed out. You see, it's sneaking around, as if it were stealing something. The little head turns east and west, and the annoying tail swings gently. What does it want to do? I really want to leave the window.
At this moment, a mosquito is flying around the window. I saw the gecko lying motionless on the wall, staring at the direction of mosquito flight and twisting its triangular head from time to time. Finally, the mosquito flew a little tired and rested on the wall. I saw the little gecko slowly crawling close to the mosquito, about two or three centimeters away from it, and suddenly stretched out its long tongue to roll the mosquito, and the mucus on its tongue stuck to the mosquito. The little gecko catches mosquitoes quite quickly, and its tongue stretches for less than a second. No wonder small flying insects such as mosquitoes and flies have no way to escape once they meet small geckos.
After a full meal, the gecko lay leisurely on the wall to rest. I waited for a long time, but its tail didn't fall off. Why? I asked my mother strangely. My mother smiled and said, "Silly boy, the gecko's tail won't fall off by itself. When it encounters an attack, it reluctantly breaks its tail and escapes, but it will soon grow a new tail. " After listening to my mother's words, I suddenly understood that the gecko broke its tail to protect itself. Mother went on to say, "Although the gecko is not beautiful in color, it eats all the pests, which is of great benefit to human beings."
After listening to my mother's words, the little gray gecko is somewhat beautiful in my eyes!
Observe the components of gecko peeling.
In the morning, I found a lanky little gecko lying on the window.
It's gray-black, with dark brown stripes, a triangular head, two eyes protruding outward, and there seems to be a sucker on its toes, which is tightly fastened to the glass window.
At this time, it is looking for food everywhere.
Suddenly, a flying insect stopped near it. At this time, the little gecko quickly climbed up and stretched out a slender tongue. Flying insects immediately became its delicacy.
It is said that the gecko has a magical tail. When in danger, it will break its tail to confuse the enemy, and the injured gecko will soon grow a new tail.
This aroused my great interest, so I attacked it with a stick.
The gecko was frightened and began to run away in a hurry. In order to survive, it cut off its tail.
It's incredible that the broken tail is still alive and kicking when it falls to the ground.
Gecko is a flying tiger. Every night, it will appear on glass windows and walls to catch pests.
It is a good friend of mankind, and we should protect it.
Gecko observation diary for 3 days (1 day 1 article)
Gecko observation diary: On the first day, it was very dark, and in an inconspicuous corner, there were black shadows moving one by one. A closer look turned out to be a gecko.
I studied it carefully: Gecko is dark brown, with a triangular mouth on its oval head and protruding eyes, showing its fierce face.
The body is long and cylindrical, with four short feet on both sides of the abdomen, many fine hairs on the feet and a tapered tail.
Although it was dirty around, it didn't move.
The next day, I saw a lot of flying insects around, and the gecko had been spying. So how does it prey on flying insects? Suddenly, a flying insect flew in front of the gecko, and the little tiger stretched out its amazing long tongue with lightning speed. As soon as the tongue touches the body of the flying insect, it turns in circles, and the flying insect suddenly becomes the dinner of the gecko.
I was startled by it.
It is said that gecko's tail will fall off when it is in danger. I don't know if this is the case.
On the third day, I found a gecko. When it didn't move, I put a stone on its tail. The gecko pulled a few times first, but it didn't work. There is only a tail left under the stone.
I took the stone aside and my tail jumped up at once.
I thought: this must be a skill that gecko evolved in nature. Tails are "prey" that attract each other in danger and escape by themselves.
Gecko, there are so many secrets, but it is discovered.
...
In the fourth grade, I found that the composition of gecko was 500 words.
I have seen a lot of knowledge since I was sensible.
The word "discovery" often has unusual meaning in my mind.
Over the past few years, I have discovered many meaningful things.
For example, bees express information in the form of their own body dance, and steamed bread will become bigger when cooked ... The clever plan of gecko escape is also one of the discoveries.
Two years ago, I went to my grandmother's house once.
Watching TV in the living room, I was laughing from ear to ear when a dark thing slowly climbed out from behind the TV.
It crawled, stopped, crawled and stopped.
While I was staying, I was still looking around, as if I was afraid that something would hurt it.
I walked slowly towards it step by step, and it seemed to see me, moving quickly.
I picked it up on the ground with branches.
The most striking thing about it is that it has a long tail.
I want to play with it. As soon as I stabbed it, I saw its tail jumping on the ground, and my eyes didn't know which way to look.
I thought it was dead, so I ignored it.
Then I found it in the kitchen.
I just found out that when the gecko is in danger, it can break its tail, confuse the enemy with its twisted tail and flee to other places.
Soon, a new tail will grow at the broken place, which is the regenerative ability of low-level animals such as geckos and earthworms.
By observing the way the gecko escaped, I found its different characteristics from other animals and tasted the joy of new discovery again.
Interesting composition gecko 20 to 30 crosses.
One evening, a little gecko quietly climbed up the screen window of my house, and I stood there, looking up.
The head of the little gecko is triangular and sharp, much like a snake head.
A pair of shiny black eyes jutted out from his head.
It also has a long body.
The little gecko always sticks his feet and body to the wall and raises his head and tail.
I think this will probably change direction soon.
At this time, a small moth stopped on the screen window.
The little gecko found the target and quickly climbed to the moth.
When one or two feet away from the moth, the little gecko carefully moved his body close to the moth.
When disaster strikes, the moth has no feeling and is still brushing her wings intently.
I saw the little gecko twisting its neck. Before I could see what was going on, the little moth became its delicious meal.
The little gecko has a bulging stomach. I think it may be that the little moth is struggling in the little gecko's stomach, but it is too late.
The gecko ate a small moth and lay there motionless.
1 minute, 2 minutes, 3 minutes ... I'm impatient, but the little gecko still doesn't move, just like a sculpture.
The little gecko is really patient and worth learning.
The composition of gecko and glove is 400 words.
At noon, I was reading a book "The Adventures of Shukebeta" with relish when I suddenly heard my mother shouting on the balcony: "Baby! Come and see what this is? " I reluctantly walked to the balcony. "I vomit!" "I fainted for ten seconds as soon as I got to the balcony." Just a little gecko! " .
This little gecko has a small head with many spots on it, like a little dress with dots. I turned it over and saw the sucker on its foot.
"It seems that the book is right, gecko feet really have suction cups.
I said.
I put the gecko on the wall again, but I didn't expect to pull it down with all my strength.
"I didn't ask you to come out to play!" Mother said angrily, "I asked you to come out and observe the gecko."
"At this moment, a big-headed fly flew in, another one, another one. At this moment, at that moment, the little gecko rushed up like lightning, stuck out its tongue and ate one for less than three seconds.
The remaining two hurriedly ran away, only to see the gecko sticking out its tongue again, and with a shout, the two disappeared again.
Hey! Very good! They met again, but in the belly of a gecko.
I thought: I'd better let go! It can also prey on mosquitoes and flies!
How to write an observation composition?
First, observe the writing of plants.
We live in a colorful world of plants, so we should pay more attention to observation at ordinary times, so that we can gradually understand the growth laws of various plants and correctly reflect the phenomena about plants when writing.
Generally, the following methods can be used to observe and understand a plant: 1, observing by parts.
That is to say, look at the whole first, and then observe each part in a certain order from the aspects of roots, stems, branches, leaves and fruits.
For example, bamboo nodes have underground roots and fibrous roots; Bamboo stems are cylindrical, hollow and jointed; The leaves are long and narrow and the veins are parallel; Bamboo teeth are called bamboo shoots; Old bamboos over 60 years old will blossom and bear fruit.
The shape of bamboo is clear, straight and upright.
2. Observe by stages.
In order to fully understand a plant, it is necessary to observe it for a long time according to its growth process.
Because plants develop, grow, develop, bear fruit and die in nature, the shape of each period is different.
For example, the new leaves of Parthenocissus tricuspidata are bright red, and then gradually grow into bright green.
Within a few months, the longer the leaves, the longer the vines.
Parthenocissus tricuspidata has a petiole on its stem, and there are six or seven branched filaments on its reverse side, each of which is like a snail's antenna.
The new filaments are also bright red, which are the feet of Parthenocissus tricuspidata.
When the foot touches the wall, the heads of six or seven filaments turn into small disks, which hold the wall, hold the tender stems and cling to the wall.
In this way, I climbed onto the roof one by one.
The feet that didn't touch the wall withered in a few days.
The thin and small disk that touched the wall turned gray and stuck firmly to the wall.
In summer, the leaves of Parthenocissus tricuspidata are densely layered; Autumn leaves are yellow and withered; In winter, the walls are full of houses, leaving only withered vines criss-crossing.
The spring breeze will break out in the coming year, and it will be revived after death.
3. Comparative observation.
There are many plants in nature, and some plants with similar shapes can only be distinguished by comparison.
For example, roses, Chinese rose and Chinese rose all belong to the same category, and they are all ornamental flowers.
They are colorful, fragrant and similar in shape.
If we compare the three kinds of flowers together, we can find out their differences.
Different leaves, Chinese rose leaves, 3-5 pieces per stalk, smooth; 5-9 roses, pilose; 5-9 roses with concave veins and wrinkles.
Different flowers, roses, single flowers, long stems, many colors, flower diameter more than 5 cm; Roses, flower clusters form panicles, corymbose inflorescences, and flowers are about 3 cm in diameter; Rose, a solitary flower or tribal flower, has two kinds: red and white, with short stems.
The thorns and fruits of these three kinds of flowers are also different.
The above methods are commonly used to observe plants and can be used flexibly.
After carefully observing plants with these methods, write down the observed things in a certain order, which is a well-organized and substantial article.
Second, observe the scenery and write.
Writing character notes is always inseparable from the description of the scenery.
Proper scenery description is very important for expressing characters' thoughts and feelings, creating environmental atmosphere, and highlighting characters' images and central ideas.
Generally speaking, observing landscape writing should pay attention to the following points: 1. Pay attention to the seasonal characteristics of the scenery.
All the year round, different seasons, different times, different scenery.
The seasons are changing and the scenery is different.
The seasons are changing, and the scenery of nature is also changing. What flowers bloom in what season and what crops grow in what season, we should pay attention to them in our daily life, keep them in mind and never do whatever we want.
2. Pay attention to the static, dynamic and color description of the scene.
For static and dynamic scenes, it is usually to write their static or dynamic directly.
You can also combine static and dynamic writing, static writing and dynamic writing, or dynamic writing and static writing by contrast.
We often say that "it's quiet enough to hear the sound of an embroidery needle falling to the ground" and "silence is better than sound" are all described in this way.
If we study this method seriously, we can make the dynamic and static scenery more vivid.
The colors of natural scenery are ever-changing, colorful and inexhaustible.
Describing the color of the scenery is an important way to add color to the article, but it must be appropriate. Too much "makeup" will be boring.
3. Pay attention to describing the foothold and order.
Different people's positions and angles make the same scenery look very different.
For example, standing at the top of Lushan Mountain to see the waterfall, there is no feeling of "suspecting that the Milky Way has fallen for nine days", but standing at the foot of Lushan Mountain to see the waterfall, like a long white practice, pouring down from the mountain.
Li Bai, a great poet in the Tang Dynasty, wrote: "The incense burner in Rizhao produces purple smoke, and the waterfall hangs in front of Yuanchuan.
The poem "Flying down three thousands of feet, I doubt that the Milky Way will set for nine days" was written after standing at the foot of the mountain and watching the waterfall.
After the foothold is determined, we should also pay attention to the order of scenery description.
Generally speaking, there are three orders of landscape writing. One is spatial order, who writes methodically according to the distance, up and down, left and right of the scene; The second is chronological order, that is, writing according to the order in which the scenes appear; The third is to write according to the order of importance of scenery in the author's mind.
Third, observe the writing of animals.
Children generally love small animals and always want to write them down after seeing them. So how to observe and describe small animals should generally pay attention to the following three points.
1, pay attention to observe and describe the shape of animals.
For example, we studied Gecko, and the author introduced the appearance of Gecko to us step by step.
Feet like ivy feet; Head triangle; Mouth, can't see clearly; Eyes are very smart; The tail is long and thin; Dressing patterns.
According to the order from bottom to top, from front to back, from part to whole, the appearance characteristics of gecko were observed in detail, which reflected that gecko was a clever little animal.
Observing and describing the shape of animals can also directly summarize the external characteristics of animals as a whole.
For example, most of the magpie's feathers are black and green, but there are white feathers on the shoulders and abdomen, which looks simple and clean.
Magpie's posture is light and beautiful, and its singing is crisp and loud, which makes people feel happy.
This passage summarizes the three appearance characteristics of magpies as a whole.
2. Pay attention to the activities of animals.
In sports training, we should not only know animals from their appearance, but also need people to observe and understand animals from their activities, so as to fully understand and describe animals.
Observe and understand the activities of animals ...
The composition of unit 7 in the first volume of sixth grade Chinese published by People's Education Press.
On the morning of September 29th, 20001year, the streets of Vancouver were crowded with people and traffic.
On the streets of Vancouver, a mother duck leads a group of naive ducklings.
This can add a unique landscape to the streets of Vancouver.
They bathed in the first sunshine in Vancouver in the morning and turned a blind eye to people coming and going and cars whizzing by.
A few cute ducklings looked around as if they were so strange and curious about everything.
Suddenly, there was a plop, and several ducklings suddenly disappeared. It turned out that the duckling accidentally fell into the sewer.
At this time, the mother duck quickly flapped her wings and stretched her neck desperately to pick up the duckling, but the sewer was too deep for her to reach the duckling.
At this time, Mother Duck calmed down and looked around quickly. She happened to see a policeman not far away, so she hurried away.
Mother duck ran to the patrolman, shouted loudly, and bit the patrolman's trouser leg with her mouth, trying to distract the patrolman.
The policeman didn't understand what Mother Duck was going to do, so he took Mother Duck away from him and went on working.
Mother duck saw the patrolman and didn't understand what was going on. She continued to bite her trouser legs.
The patrolman always looks at the mother duck like this, feeling a little strange, so he stands up and follows her.
Before the mother duck and the patrolman came to the sewer, the mother duck pointed her mouth at the duckling that fell into the water.
The patrolman finally understood the cause and effect of the incident and knew that the duckling could be washed away by the water at any time.
The policeman hurried to the river and borrowed a fishing net from the fisherman.
Reached down the deep and narrow sewer and rescued the dripping duck.
When mother duck saw the duckling being rescued, she flapped her wings happily and pecked the duckling's body from time to time.
They stood in a row again and continued to follow the mother duck.
The patrolman looked at them from a distance.
In the early morning sunshine, the streets of Vancouver are more beautiful and dazzling. .....
About my discovery composition, fifty words,
I found that in the summer night, the heat wave hit people, and our family sat at the door to enjoy the cool.
There are so many mosquitoes in summer that they always bite my face and swell out big cells, which makes me itchy and uncomfortable.
Suddenly I saw the gecko on the wall eating mosquitoes.
Geckos are like my little saviors, but they are natural enemies of mosquitoes. They crawl on walls, windows and ceilings to eat mosquitoes. How handsome they are! Why can gecko walk freely on the wall? I'm a little confused.
In order to solve this problem, I pay more attention to gecko.
Sometimes I stick it on the wall like a gecko, but I can't climb it.
I racked my brains and finally got an idea. This is my own imagination, not necessarily true. I think: Gecko is too small, and its feet are equipped with 502 super glue, so it can move freely effectively.
But I'm still not sure whether it's true or not, so I checked the information on the Internet and saw it. Because the gecko has a sucker on its foot and a small hook on it. They hung the hook on the wall so that it wouldn't fall off.
Ah, so that's it! I suddenly realized.
"If we can get inspiration from the gecko, it would be great to invent a kind of sucker shoes. In this way, when there is a fire, we can climb down from the tall building and stick it on the wall safely! "
People's education printing plate sixth grade first volume Chinese unit 7 composition topic
One day in September, a group of naive ducklings, led by their mother, strolled on the streets of Vancouver.
The ducklings held their heads high and walked with neat steps, adding a little vitality to this big city.
Walking, the eyes of the ducklings were attracted by the tall and beautiful buildings.
Mother duck is still watching the color change of the traffic light opposite with rapt attention.
As soon as the green light turned, Mother Duck got up and walked forward. Just as she took a big step, she heard: "plop, plop!" " "Two voices.
Subsequently, the orderly slogan "Quack" of other ducklings became a mess.
Mother duck quickly looked back, and there were only four of the six ducklings left.
At this time, the mother duck found a "big hole" behind the rest of the baby.
Mother duck rushed over and two ducklings croaked in the hole.
Mother duck panicked, but thought: we should calmly deal with difficulties.
Mother duck circled thoughtfully.
She suddenly found that not far away, there was a kind-looking policeman.
Mother duck immediately told the duckling to stay here and ran quickly to the police.
"Quack quack!" Tell patrol.
The policeman squatted down deadpan.
Mother duck found that whatever she said was in vain. He doesn't understand! So Mother Duck changed her "fighting mode".
She grabbed the policeman's trousers and pulled him out to show him what had happened.
The patrolman seems to understand something.
Follow mother duck to the road.
Four ducklings standing beside a sewer without a manhole cover caught his attention.
He came over and stroked the duckling.
Mother duck lowered her head.
The patrolman looked down and found two ducklings falling into the water.
The policeman understood what Mother Duck meant, but he was anxious about how to save the duckling.
He finally thought of a way, borrowed a fishing net from the owner of the fishing gear shop and fished up the duckling.
Mother duck was so happy that she put one wing on her chest, unfolded one wing, bent her neck and bowed to the police like a gentleman.
The patrolman watched the duckling waddle along the road.
My newly discovered works
The world is really ubiquitous, sometimes the solution to the problem will be wonderful, and often these secrets will be discovered by some people with a heart.
Take me for example. Recently, I discovered a new principle, that is, the crushed table tennis will return to its original state when it meets hot water.
Last Sunday, my mother and I came to the gym to play table tennis.
We just hit the ball, but it happened to me. I served a high ball, and my mother knocked it off the table, so I went to pick it up and accidentally smashed the table tennis.
It's over, it's over. This is the "Double Happiness" three-star ball I bought with my pocket money accumulated for a week. It will take another week to buy another one.
My mother came over and saw my embarrassment. She smiled and said, "Nothing, nothing, I can do it again."
I said in despair, "How is that possible? They are all so flat, there is definitely no way! " Mom jokingly said, "Look! I'll change it back by magic right away.
He unscrewed the cup full of boiling water, put the ping-pong ball in it and said, "You can watch it later.
"I doubt it, but I must wait patiently.
After about 5 minutes, my mother took the table tennis out of the cup. I was dumbfounded. The table tennis that has just been stepped on miraculously turned into a circle.
"How is that possible?" I was surprised and asked, "What's the matter? How can a crushed ping-pong ball return to the garden? " Mom smiled and told me the reason.
It turns out that air expands with heat and contracts with cold, and water is hot. When the air in the table tennis is heated and expanded, it will definitely change the table tennis back to its original shape.
This is the power of science! Science is really everywhere, it is in life, and it is also in learning. As long as you are good at observing and discovering, as long as you have a heart to pay attention to discovery and be a conscientious person in life, science will often bring you unexpected surprises! Let's act from now on! Starting from every little detail around us, starting from every little thing around us, let science benefit us! -My new discovery composition 600 words | My new discovery junior high school composition related articles I heard that earthworms have regenerative ability. If you keep it, you may grow into two earthworms in a few days.
Is it true?/You don't say. /You don't say. I decided to try it myself.
With the help of my father, I found four slightly larger earthworms, cut them into two pieces, built a "home" for them and raised them carefully.
I found that earthworms shed some yellow mucus where they were cut, but they didn't die. The part with the head drills hard into the soil, and the part without the head moves slowly.
Three weeks later, when I dug up the soil, I was surprised to find that there were really six earthworms in the soil! It turns out that earthworms really have the ability to regenerate! If the earthworm is cut into three, four and five segments, will it grow into three, four and five segments? I decided to try again.
So I found three more earthworms, cut one into three sections, one into four sections and one into five sections, and then raised them in containers A, B and C respectively.
Three weeks later, I dug up the soil. I found two earthworms in container A and container B, but there were no earthworms in container C.
Why can an earthworm grow into two when it is cut into two sections, and only grow into two when it is cut into three, four and five sections? Later, I looked up a lot of information and asked the teacher to know.
It turns out that earthworms, like geckos, have regenerative organs in their bodies, and the regenerative organs are not separated, with nine to fifteen sections.
This kind of organ can make earthworm decompose and regenerate, and a new head will grow in the section where the head is missing; A tail will grow on a section without a tail, and an earthworm will become two complete earthworms.
If this organ is destroyed, maybe the earthworm can't regenerate.
Therefore, I think it would be great if we can also find human regenerative organs! I believe that in a few years or decades, if scientific research is successful, disabled limbs can grow back.
This will greatly benefit mankind and the world.
There will be no disabled people in the world, and our life will be colorful and interesting! I am a curious girl, curious about everything around me.
I think there must be many people who are as curious about everything as I am.
Have you all eaten popcorn? Popcorn is sweet and crisp and cheap.
It is a snack that adults and children like to eat.
We can see that when the shopkeeper popped popcorn, he didn't put anything like puffiness, but how did it get bigger? You don't know, do you? Then listen carefully.
I did a little experiment today and finally solved the mystery.
How did a small corn grain suddenly turn into popcorn? They rely on hot air and great pressure. We can see that the iron pot for popcorn is sealed. After the rice is poured into the pot, it is heated on the pot and the pot keeps turning.
After a period of time, the temperature of the iron pot can reach several hundred degrees Celsius.
If you think that this can make corn kernels swell into popcorn, you are wrong. In fact, the corn in the pot is not much bigger. In fact, the rice grains became bigger after being heated for more than ten minutes, and the lid was suddenly opened.
Why is this happening? Because there are many air-filled gaps in the rice grains.
After the corn kernels are heated in the sealed pot, the pressure of the air in these gaps and the air in the container gradually increases.
Because the pressure of air and water vapor in the gap in the rice grains is equal to the pressure in the pot, the rice grains remain basically unchanged.
When the pressure is much greater than the pressure outside the pot, the iron pot is suddenly opened, and the pressure inside the pot drops to the same speed as the pressure outside the pot, while the pressure inside the corn kernels is still high. They immediately squeezed out and broke through the somatic tissue of corn kernels, and with a bang, the rice grains swelled to a gap and became a complete "white fat man".
From this experiment, I understand a truth: as long as you pay attention to observation, you will find something and gain something everywhere. As long as you pay attention to observation, you will certainly find something and gain knowledge like me.
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