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Observe an animal or plant and write a 300-word composition.
1. Observe an animal or a plant and write a popular science essay of about 300 words, not an argumentative squirrel.

Squirrel is a beautiful little animal, which is very lovable. It has flexible limbs and moves quickly. It has a pair of sparkling eyes embedded in its little face. Its taupe hair is as smooth as oil. Its big furry tail is always upturned, which looks very nice.

Squirrels like to jump around on branches. They are very clever. As long as someone touches the trunk, they hide under a few branches and even jump into other trees. On a sunny summer night, squirrels jump, scream and chase each other in the trees. They seem to be afraid of strong sunlight and often hide in their nests to enjoy the cool during the day. Only when the branches are shaken by the wind will they fall to the ground. But they never go near people's houses.

Squirrels like to live in tall old trees and often put their nests in the middle of tree forks. When they build a nest, they first move a few branches together, then find some dry moss to spread on them, and then compact and flatten the moss. After the nest is built, they add a cover to cover the whole nest, so that they are not afraid of the wind and rain. They live in it with their children, which is warm and safe.

Squirrels often eat pine nuts, hazelnuts and oak chestnuts, and sometimes they eat bird eggs. When they eat, they often sit upright on the branches, hold the branches with their front paws and send them to their mouths. In autumn, squirrels store winter food and stuff it into cracks in old trees. In winter, they sometimes pry open the thick snow with their claws and look for food under the snow.

Squirrel meat can be eaten, tail hair can be used as brushes, and skin can be used as clothes.

2. Observe an animal or a plant carefully and write a 300-word popular science essay "Elephant".

Long nose animal

Mammalian order 1, commonly known as elephant, is the largest terrestrial animal in the world. Its main external feature is a flexible and muscular long nose, which has the function of winding and is a powerful tool for elephants to defend themselves and feed. There are only two species of Elephantidae1* * 2 in this order, namely Asian elephants and African elephants. Asian elephants were once widely distributed in South Asia and Southeast Asia south of the Yangtze River in China, but now their distribution is decreasing, mainly in India, Thailand, Cambodia, Vietnam and other countries. There are also a few wild populations in Xishuangbanna, China. African elephants are widely distributed throughout the African continent.

The elephant shoulder is about 2 meters high and weighs 3~7 tons. Big head and big ears are like fans. The limbs are as thick as cylinders, supporting a huge body, and the knee joint cannot flex freely. The length of the nose is almost equal to the body length, and it is cylindrical, stretching and bending freely; The end of the nostril is open, and there are finger-like protrusions on the tip of the nose, which can pick up small things. There are 1 pairs of well-developed incisors in the maxilla, which grow for life. The front teeth of African elephants can be as long as 3.3 meters, while the female fangs of Asian elephants are not exposed. There are six buccal teeth on both sides of the upper and lower jaw, which grow from front to back in turn, with high crown and complex structure. There are five toes on each foot, but 1 and the fifth toe are hypoplastic. The coat is sparse and the body color is light grayish brown. Male elephant testicles are hidden in abdominal cavity; There are two * * * offspring behind the front leg of the female elephant, and the pregnancy lasts for more than 600 days, with an average of 1 offspring per fetus. African elephants have two finger-like protrusions at the end of their long noses, while Asian elephants have only 1. African elephants have big ears and big bodies, while Asian elephants have small ears, small bodies and light weight.

Elephants inhabit various habitats, especially jungles, grasslands and river valleys. Live in groups, and males occasionally live alone. Feeding on plants, the food intake is huge, with a daily food intake of more than 225 kilograms. Life expectancy is about 80 years. Some elephants have been domesticated by human beings and regarded as domestic animals, which can be used for riding or labor. Ivory has always been used as a valuable carving material, which is expensive, so elephants have been killed and the number has dropped sharply.

Modern elephants evolved from their ancestors. According to the fossil discovery, the Eocene ancestor elephant only had a long nose and a small body. From ancestor elephants to modern elephants.

African elephant

Distributed in central, eastern and southern Africa.

African elephants live in tropical forests, jungles and grasslands from sea level to 5000 meters above sea level. It is the largest living land mammal. Living in groups, led by a male elephant, daily life, no settlements. Feed on weeds, leaves, bark, branches, etc.

The reproductive period is not fixed, the pregnancy is about 22 months, each child is 1, the sexual maturity age is 13- 14, and the life span is 60-70 years. Beijing Zoo 1954 begins to be exhibited.

Be listed in the Convention on International Trade in Endangered Species of Wild Fauna and Flora.

The African elephant is the largest living terrestrial mammal, with a body length of 6-7.5 meters, a tail length of 1- 1.3 meters, a shoulder height of 3-4 meters and a weight of 5-7.5 tons. The highest record is a male,

3. Composition: I observed a plant by myself. In the fourth grade, I raised a lovely daffodil on the balcony. The leaves of daffodils stick out like long tongues, which are longer and greener. Narcissus blooms in spring. The flowers grow on the stems and look straight from the outside. Each stem can grow four flowers, facing each other and opening for the second time. Narcissus Each petal has six small fan-shaped petals, and the three petals inside are staggered and never overlap. Stamens are dioecious, with goose yellow heads and reddish bottoms. Viewed from the side, it looks like a pair of small boots. Under the breeze, it swayed gently, emitting a faint fragrance and attracting bees. How beautiful! Children, is my daffodil beautiful? .

Write a 200-word composition about observing animals or plants. My favorite animal-puppy-my favorite animal-puppy. I like small animals very much, but what I like best is puppies. This puppy has a small body but a big head. It has a pair of small triangular ears and a small face. It has big eyes as bright as jewels, a round black nose and hair. As smooth as a layer of oil. The tail is furry and often swings, and it feels very comfortable. Puppies make a little noise when they eat, and eat quickly, as if they are hungry. When sleeping, it is motionless and quiet. As soon as there is movement, it raises its head and sleeps on the ground. When playing games, if it is happy, it will flick its tail and jump into the distance, and its tongue often sticks out. So I often play with it. The puppy's head is very big, so I call it "big head". Once, I just got back to my door and saw the dog playing and running around on the roadside. I was just about to open the door when the puppy came running and shook his head in front of me as if to welcome me. I really like this cute and naughty puppy! I believe you will also like this "big head"! My favorite little animal-puppy.

5. Observe a plant and write ten short articles. A composition is only 300 words. I love delicate and restrained roses, and I also love unpretentious chrysanthemums, but I love red azaleas more because of their unique beauty.

During the May 13th holiday this year, it happened that the Rhododendron Festival was held in Binjiang Forest Park. I was lucky enough to get in touch with the gorgeous azaleas with my parents.

Stepping into the azalea park in the park, I saw a touch of bright color. From a distance, it looks like a burning flame. When you look closer, you will see dark pink stamens, and the more you look outside, the lighter the color is. The edge of the petal is white, and there is a small dark brown flower in the middle of the flower, which seems to be a flower among flowers and a sleeping baby lying in hahaha's arms! With green leaves, like a baby wrapped in a windbreaker. Turn the dark green leaves upside down, and you can see a light green, just like putting a green dress on the azalea.

I looked down and took a deep breath. The faint fragrance is refreshing. I looked at the beautiful charm of flowers and felt as if I had become a rhododendron and was in a paradise of rhododendrons. ...

Looking at the azaleas everywhere in the park, I was deeply touched. Although it lacks fragrance and plain appearance, I still like it very much, because azaleas bring me happiness and extraordinary charm!

6. composition observation diary (observing a plant or animal) 350 words in the evening, the sun is about to set. Looking at the red fireball, I only showed half a smiling face, dyed the floating clouds as red as a paint bottle knocked over in the blue sky, and put on more beautiful and moving clothes.

Colorful light shines on the earth, and children's faces are illuminated like sweet apples. The clear lake is illuminated by colorful and sparkling lights. Summer light shines on the green leaves of pine and cypress, and almost all the green leaves are golden. From a distance, some of them are like the legendary cash cow. Then turn your eyes to the sky, and the beautiful clouds are colorful: red is as charming as peach blossom, gold is as dazzling as gold, half purple and half gray, half blue and half yellow, which is really varied.

The beautiful fire cloud is also a magician. In a short time, it turned into a dragon, flying around in the boundless sky. The wind blew slightly, and the dragon blurred in less than a few seconds and became a rolling red mountain. A few seconds later, a lovely dog came to the mountain, with a delicious meat bone in his mouth and ate it with relish. When the wind blows, the puppy is blurred and the red mountain is gone.

After a while, a golden rooster appeared in the sky. It stood on a bluish-gray stone, with its head held high proudly, as if it were crowing. After two or three seconds, the cock's wings spread out, became bigger and blurred.

Then came a huge dinosaur with its head facing east and its tail facing west. Dinosaurs stood, followed by a large group of small dinosaurs. It seems to have given orders to its dinosaur army and moved to my side vastly. After two or three seconds, the dinosaur's neck became longer and the little dinosaur behind it was flying. When I want to take a closer look at this big dinosaur, nothing looks like it.

After a while, a rabbit came with long ears and red eyes. It jumped around as if it were anxiously looking for its mother. After a few seconds, it walked away and slowly disappeared.

After a while, a little rabbit appeared in the sky. Little rabbit with long ears, three mouths, squinting, happily carrying a small basket, as if to go to the Woods to pick mushrooms. It's very cute. However, it just disappeared for a while.

Look, a tiger suddenly appeared in the sky. Its mouth is wide open and fierce, like catching food in the forest, ready to take it home for its baby to eat. But after two or three seconds, the tiger disappeared.

After a while, a tall and strong elephant came. It raises its long nose, as if pulling up trees, ready to move to a paper mill to make paper. Slowly, the elephant became furry and disappeared without a trace.

Then another turtle came and swam around in the sea. After a while, it lay there motionless, with its back up, as if basking in the sun on the beach. After a while, his stomach was up and his feet were down, so he couldn't turn over! Then somehow, it disappeared, probably submerged by the tide!

After a while, the burning clouds came down and all the animals were gone. But I'm still unfinished. I'm still waiting for the beautiful sunset to appear again.

7. Observing Plant Diary Composition 300 "Apple" is spring and autumn. Apple, a small jasper-like fruit, has also experienced this kind of spring and autumn exercise before it is cultivated into a positive fruit and becomes a delicious natural thing.

In spring, the sun is shining in Shan Ye, and apple trees can't wait to sprout. But flowers still have to bloom in the spring season. At that time, there was an intoxicating breath of life between heaven and earth, and the petals of apple flowers were quietly revealed.

However, this flower is also uneven: look at the clusters of branches, pink and white flower bones, those that have been in full bloom or are in bud, all quietly showing their beauty against the green apple leaves in the warm sunshine. One by one, they give off faint fragrance, attracting hardworking bees to catch up: bees come dressed up and spread pollen, and in return, apple flowers offer their nectar.

Therefore, when this magical combination of nature ends, the flowers begin to prepare for the fruit. -Just like the mother of human beings, she is willing to suffer hardships and give up her beauty for her little baby. -even if you are not pregnant in October, it is also a great merit to experience the wind and rain and finally make a positive result. Then, we saw a spring breeze with the breath of early summer, with petals of rain and agarwood, which brought us a cavity of regret, but in the middle of the original petal position on that branch, a gourd-shaped greenhouse bulged, which was touching and gratifying.

Then, summer came. Under the scorching sun, the apple tree is swaying the hope and life of a tree.

Rough bark and low crown can not hinder the apple tree's right to conceive life, let alone dispel the apple tree's expectation for children. She stood firm in the hot sun, or in the strong wind, or in the thunder and lightning, or in the rainstorm, and set up a safe home for the young little apples! So, in this way, slowly, summer is over.

Autumn is coming. In a flash, when the mother of the apple tree gradually lost all her hair, the children of the apple began to grow up slowly.

They hung on the branches one by one, swaying their own scenery gently in the cool autumn wind, red or gold, red or white, each beautiful and attractive. Looking at them, I thought, if the apple tree really has spirit, it would be great.

However, at this time, their mother and daughter should also be separated. Just like people, when a daughter gets married, the mother must be both pleased and sad. The hardest thing in life is to leave, and so are apple trees and apples. When Apple's daughters get married, the tree looks even older.

Then, after the autumn wind blows, the dry hair of the apple tree flies all over the sky ... Then, in winter, the mother fruit tree is as silent as death-until the early spring of another year. So, in this feeling, I have grown up slowly.

Therefore, when I saw someone chew up a big round apple and throw it into the dustbin, my heart was full of bad feelings: how much suffering the apple experienced from birth to maturity, and how many joys and sorrows it experienced. Imagine, if the fruit tree mother knew that her good daughter was unappreciated and mercilessly abandoned in the distance, would the tree mother faint because of her inner pain! I want to cry when I think about it Thanks to the mother fruit tree, thanks to the great nature, thanks to the earth and sky that raised us human beings, I, one of your youngest sons (if you are a girl, that's your daughter), salute you! ! This is a question I answered not long ago. Please extract a paragraph.

8. Observing the changes of a plant or an animal "Diary of Observing Mung Bean Germination" I used a plastic bottle, filled some soil, planted a few mung beans, watered them, and began to wait for the mung beans to germinate. After a few days, everything finally paid off, and mung beans successfully issued green seedlings. I looked at them and felt that they were like knights, struggling with sharp broadswords. The first one can see the wonderful world outside. After a few days, I found that my bean sprouts grew taller and bigger. I measured it with a ruler, but I didn't expect it to grow two centimeters faster and one millimeter slower. I am very happy. I hope the mung beans I planted will grow faster and faster. About three or four days later, when I went to see my bean sprouts again, I found that they were a little long. Although maybe it's because I can't measure the length of their roots. Because if I have the length of their roots, I can know what their total length is, which slightly narrows my doubts about these mung bean seedlings. After a while, these bean sprouts inexplicably grew some round little things. I looked around and didn't know what it was, so I asked my mother. I didn't know it until I asked. But I want to take it off again. I like this little thing very much, but I still hold back. Let's see what will grow. By observing the process of mung bean germination, I understand that we should be patient in everything, but we should not be anxious.

9. Describe an animal or plant in at least 300 words. The cat is a beautiful little animal, docile and intelligent, and very pleasing.

It has a handsome face, sparkling eyes, vigorous posture, brisk limbs, quick action and quick response. Cats are characterized by a keen sense of smell, and even the slightest fishy smell can be detected immediately.

There are a bunch of white beards on both sides of its mouth. Don't underestimate these beards. They are living rulers for cats and indispensable measuring instruments for cats to catch mice. When the mouse escaped to the hole, the cat used the beard to measure the width of the hole, because the total length of the left and right beards was almost equal to the width of the cat's body. If the width of the hole is greater than the length of the beard, then the cat can get into the hole to catch the mouse.

This shows how important a beard is to cats. A cat's mouth is like a tiger's, and its teeth are very sharp.

The cat's four furry paws are like fluffy balls, and each foot has a small meat pad, so the cat walks quietly. The cat's tail is thick and long, and it runs high.

Cats are generally docile and like to spoil. They will "meow" when they see their owners, and sometimes even snuggle up to you and lick you affectionately. At this time, if you gently scratch its neck with your hand, it will look up comfortably, squint, and make a soft "snoring" sound in its throat.

However, once provoked, its hair will stand up like a hedgehog, and its throat will make a threatening roar: "Woo-",and even jump up to catch people. Cats are also very naughty.

If a table tennis ball rolls in front of it, it will immediately run over, first tentatively stretch out its front paws to touch the table tennis ball, then quickly retract, touch it again, and then retract ... until the doubts are eliminated, it will enjoy playing. You can ignore it when you play. Even if it hits the foot of the table, it will not affect its interest in "playing" at all. It will put the pain outside the cloud nine and continue to jump up and down.

Cats are natural enemies of mice. Cats have long been famous for their ability to catch mice.

When the cat found the mouse hole, it went to the hole to smell the mouse. If there is, it will sit patiently at the mouth of the cave and wait quietly for the mouse to come out. No matter how long it takes, it stays there quietly, staring at the hole.

As soon as the mouse came out of the hole, the cat jumped up and swooped down. With a whoosh, the mouse was thrown to the ground before it could react. This time, the cat is happy It first played this hard-won "trophy" over and over again, and then dragged it to a secluded place to "enjoy" it slowly.

Cats are not only pleasing in appearance, but also won everyone's love with their unique mouse catching skills.