1. 400 words of explanatory composition for the third grade of primary school
Our family has a turtle-backed bamboo, which is a flower at home. Our house is just 2.8 meters high, but the height of the tortoise-backed bamboo is 2.6 meters, and it is attached to the roof! In the past, I was full of doubts about the name of Bambusa gigantea. Later, after careful observation, I found that its leaves were exactly the same as the patterns on the back of a turtle. This should be the reason for the name "Bambusa gigantea".
The bamboo leaves of my family are luxuriant, and each leaf is like a banana fan. From a distance, small fans are stacked together, which is very beautiful. The leaves it has just grown are tender green, with a faint hint of yellow. Gradually, the color becomes darker and darker, and finally becomes dark green.
The stem of Phyllostachys pubescens is very thick, about two centimeters, and it is also very hard and strong. Touch it with your hand and it won't budge. Two petioles grow from the stem, and the leaves are scattered on the petioles. The veins of the leaves are yellow-green, and there are holes in the veins, just like big eyes. Petiole grows on the stem and takes root on the petiole. The root is very strange. It grows upside down and slowly grows into the soil of the flowerpot. Seen from a distance, the stout stem is in sharp contrast to the slender petiole.
According to my father, Bambusa gigantea has the function of cleaning and purifying the air, which can make our bodies healthier. I like Bambusa gigantea in my family more.
2. 400 words of explanatory composition for the third grade of primary school.
Kangaroo is an animal that grows in Australia. Its head is sharp, its forehead is wide, its chin is small, and its eyes are black and big, like two black pearls. Its ears are long and sharp, and it often stands alert and listens to the movements around it. Adult kangaroos are 2.6 meters tall and can weigh up to 80 kilograms. They have short forelegs and well-developed hind limbs, and are good at jumping. Can jump 4 meters, while our human record is only 2.45 meters; It can jump as far as 13 meters, while humans can jump as far as 8.95 meters. What a "jumping athlete"! Kangaroos also have a big thick tail, which plays a balance role when jumping; When resting, support your body like a bench. Kangaroo babies are all premature babies, only as big as a peanut when they are born, so they must develop in their mother's pouch. The so-called nursing bag is the pocket opened in front of the kangaroo mother's abdomen. There are four kangaroos in it. The kangaroos are raised in the pouch. After 200 days, when they can live independently in the outside world, their mother will not allow them to go in again.
Kangaroos are herbivores, eating a variety of plants, and some also eat fungi. They like to go out at night and usually come out for food a few hours after sunset.
There are many kinds of kangaroos, the size of which is red kangaroo, living in the grassland; The grey kangaroo lives in the forest and bushes. They are all marsupials and representative animals of Kangaroo family.
Kangaroo has become one of Australia's national treasures because it will only jump forward and never retreat. So people want to have the spirit of never back down like a kangaroo.
3. 400 words of explanatory composition for the third grade of primary school.
Crocodile is an extremely fierce animal, but it is also a loving mother. Crocodiles are full of fangs and hard shells, which make people feel creepy and tremble with fear. Crocodiles are also spectacular when hunting food. Crocodiles hide underwater, waiting for the arrival of prey, because it is like a driftwood underwater, so it is difficult to be detected. As soon as the prey arrives, it slowly approaches. After a while, it seems to be impatient. Suddenly, it jumps out of the water and splashes. Crocodiles bite their prey's neck, use their own strength to drag their prey to the water, and then drag their prey into the water and drown them.
I said that crocodiles are loving mothers. Don't believe me. The Caiman is an example. Before the baby of the caiman is born, the caiman mother will stay with the egg all the time. When the babies are born, the caiman mother will take more care of her baby. It holds its babies in its mouth, protects them and cares for them. It is not until the babies grow up that their mothers leave them and let them live independently. See, Caiman's mother is very kind.
Crocodiles also have good friends, that is toothpick birds. Why? Because every time the crocodile is full, the toothpick bird picks its teeth. And when the enemy comes, the toothpick bird will tell the crocodile to hide quickly. So crocodiles and toothpicks are good friends.
4. 400 words of explanatory composition for the third grade of primary school
Earthworms. I believe that when I mention this name, everyone will say, "I know, I know!" " So today we will introduce earthworms. Earthworms are particularly ugly, with a color between black and brown; There are many lines on its body, which are links; Earthworms are pointed at one end and round at the other, and the pointed end is the head of the earthworm; The earthworms we usually see are about 4-6 cm; If you look at it with a magnifying glass, you will see very small class hairs; Earthworms usually have a little lighter protruding part at the end near the tail, which is called the earthworm's girdle. Near the earthworm's belly, the color will be a little lighter, and it will be a little bright and translucent!
Earthworms like to live in dark and humid soil. I also heard from my classmates that it seems that earthworms still have the ability to regenerate. I am going to do an experiment to prove whether earthworms have the ability to regenerate. I grabbed a piece from the vegetable field and drew it. I broke its head. I put it in the soil and made a mark on the earthworm. Two days later, I went to the vegetable field to look for the earthworm. I actually found that the previous earthworm was resurrected. It turned out that the earthworm really had the ability to regenerate! Earthworms can also drill and loosen soil! The earthworm's body can also stretch!
Now, I still think earthworms are quite cute.
5. 400 words of explanatory composition for the third grade of primary school
Beef soup is delicious in Huainan, and it is famous for its fresh soup. As the saying goes, "Food is the most important thing for the people", Huainan beef soup always makes my mouth water. Huainan beef soup has a long history. According to legend, during the Five Dynasties and Ten Kingdoms, Zhao Kuangyin soldiers were trapped in Nantang, with no food and grass inside and no reinforcements outside. So the people in Bagongshan slaughtered their own cattle and cooked them into a big pot of soup. After the officers and men drank it, their morale was greatly boosted and they broke through Shouchun City. Afterwards, Zhao Kuangyin called Huainan beef soup Shentang. It can be seen that Huainan beef soup has a grand reputation.
The method of beef soup is very simple. Put clean vermicelli, snow-white rice noodles and thousands of thin pieces all over the place in an oversize bamboo colander, shake them back and forth in the hot fresh soup made with beef bones, and scald them for two or three minutes. Then pour it into a bowl, put the thin beef, sprinkle some chopped green onion, beans and garlic, and finally pour fresh soup. A bowl of beef soup with color, fragrance and taste is finished.
Glittering rice noodles and vermicelli, thousands of pieces soaked in milky white soup, pieces of red beef and a bunch of fragrant coriander scattered among them, and then poured with red spicy oil. It's really "this thing should only exist in the sky, and there are few times to taste it on earth."
When eating beef soup, I always like to drink half a bowl of fresh soup made of beef bones in one breath, and then fill it up. Find the heads of rice noodles and vermicelli, take a "shh" bite and suck the whole thing into your mouth, which is smooth and refreshing, very comfortable.
Beef soup with spicy oil has a special flavor. Not only did you eat sweating, but your face was flushed and very refreshing; And enjoy it in winter, and it can also drive away the cold!
Huainan beef soup is cheap, and the soup is fresh, which is a rare delicacy!
6. 400 words of explanatory composition in the third grade of primary school
Everyone has a room of their own, and I am no exception. Although my room is not big, it is warm, and the main color is pink. As soon as I entered the door, I saw a warm little bed at first sight. The head of the bed was lavender, the sheets were pink, and there were several cute rabbits on it. The pillow was pink, too. Every night I could put it on my pillow and enter a sweet dream.
On the right hand side of the room is my sister's wardrobe and mine. The wardrobe has three floors, on which my daily clothes are hung. There is a storage box on the first floor of the wardrobe, and there are clothes that are not worn now in the storage box; My pants are on the second floor; My coat is on the third floor, and there is a drawer under the third floor. There are some small clothes such as underwear and socks in the drawer. There are some quilts on the top of the wardrobe.
Next to the windowsill is my desk, which is very big. There is a small bookcase above the desk, on which there are many extracurricular books. There is my small desk lamp on the desk. The desk lamp can swing up and down. There is a tray at the bottom of the desk lamp. There are some symbols on the tray, which respectively indicate: writing operation mode, drawing mode, reading mode, timing rest mode, one-minute timing mode, brightness increase, brightness decrease and power off. The place where the desk lamp shines is honeycomb, and there is a luminous point in the middle of each "honeycomb". There are still my usual reference books, composition books, pencil boxes, etc. on the desktop. On the "wall" of the desk, there are pencil cases and reading pens.
This is my room. It is a good place for me to read, study and rest. I love my room!
7. 400 words of explanatory composition for the third grade of primary school
Rabbits are the general name of all rabbits belonging to the family Rabbinidae. Mountain hare is one of them. Mountain hare is one of the representative animals in the frigid zone. The body length is about 5 10 mm. Its fine and shiny fur, white in winter and reddish brown in summer, is a rabbit with white winter hair in China. Its ears are short, half the length of a white rabbit. Its eyes are black, like two beans. Ear tips and eye circles are dark brown. Under the small gray nose, there is a small mouth with three petals, which looks very handsome and pleasing.
Mountain hare usually moves alone and hides in a simple cave under the bushes during the day. Come out in the morning and evening. Its nest is not fixed, and there is an inherent saying that a cunning rabbit has three caves. It never follows its own footsteps, but always detours back to its nest.
Mountain hare was cunning and alert. When he left the nest, he inquired about the movement and decided to go. It has a keen sense of smell, its nest is often in a ventilated place, it sniffs the smell of natural enemies when sleeping, and its ears always listen to all abnormal sounds. When it is frightened, it jumps up and disappears without a trace. When it runs fast, it can jump up to more than 3 meters and the speed is 50 kilometers per hour. When running, you often take off and observe the movement around you. It is one of the fastest wild animals in the world.
Mountain hare gives birth to 2-3 babies a year, with a gestation period of about 50 days, and each baby gives birth to 2- 10. Newborn cubs are covered with dense hair and weigh 90- 120g. They can open their eyes after birth. After 20 days, they began to live independently, with a life span of 10- 13 years.
8. 400 words of explanatory composition in the third grade of primary school
Wonton is very common, and it is also a flavor snack that we often eat. The way to make wonton is very simple. Roll the dough skin first. Roll the skin thinner than the dumpling skin, square and palm-sized. Chop vegetables and meat into stuffing, then put the flour wrapper in the palm of your hand, and put the stuffing in the middle of the flour wrapper. The process of wrapping it is very similar to folding paper, folding it in half and then folding it in half, bending the folded flour wrapper, then folding the two diagonal corners together and pinching them together by hand, and a wonton is made. Wonton stuffing can also be made of wild vegetables, which has a special flavor.
After wrapping the wonton, put the wonton in the pot and cook it. When it floats, put some cold water and cook it for a little while, and then it can be cooked.
The way to eat wonton is also very simple. Fishing wonton in a bowl, glittering and translucent and bulging inside, stirring with a spoon, I saw white wonton lying leisurely in the bowl, surrounded by clear soup on the side, poured a little vinegar and sesame oil to eat spicy food, put a little Chili sauce, and sprinkled with some green coriander, which not only has beautiful and diverse colors, but also tastes more delicious. Smell it, and immediately my mouth watered three thousands of feet. Take a bite, a fragrant and slippery feeling, and make sure you want to take a second bite.
Wonton is delicious and easy to cook. You can try it. Not only can you help your mother cook, but you can also taste the joy of participating in housework.
9. 400 words of explanatory composition for the third grade of primary school
I believe everyone has their own favorite things, which may be our toys, things we made by ourselves, shells we saw on the beach, our most precious photos, gifts from our good friends, and my favorite thing is a balance car. This balance car is a birthday present from my older mother. It's blue and white, with two wheels and a pair of black pedals. It's fun to step on it.
Before I got it, it was more troublesome to go a little further, so I kept begging my mother to buy me a vehicle. On my birthday, my big mother gave me a big surprise. Wow! It's a balance car. I couldn't wait to try it. According to the description in the instructions, I stood on the pedal carefully and leaned forward a little. The car suddenly jumped out, scaring me to stand up straight. The balance car stopped as if the brakes suddenly stopped. My legs clamped the pedal and tried hard to turn left and right. The balance car turned elsewhere according to my wishes, and I leaned back a little. The balance car backed up like a reverse car. I rode around and thought, this balance car is not only fast, but also labor-saving. It's really a good thing. In a short time, I played with ease.
The balance car can be used not only as a tool for leisure and entertainment, but also as a tool for transportation, and the price is affordable, which is really cheap. Such an ordinary balance car has brought me endless happiness!
10. 400 words of explanatory composition for the third grade of primary school
"The little house is round and round, with red jewels in it; Jewelry looks good and can't be worn. It tastes sour and sweet. " Guess what this is? I might as well tell you that it is pomegranate. Mature pomegranate looks like an onion, with a six-petal hat on its round head. The epidermis is red, yellow and rough, and it is covered with spots of all sizes. I picked up one and smelled it carefully. It had a faint fragrance. Gently scratch the pomegranate epidermis with a knife and break it hard. With a bang, it broke in half. Wow! Pomegranate seeds, like naughty dolls, jumped out one by one, red, like gems, and you can vaguely see the seeds inside. The surface of pomegranate seeds is very smooth. When you pinch them gently, the juice like honey flows out. I couldn't wait to pick up a few "rubies" and put them in my mouth. I bit them down, and suddenly a sour and sweet taste flowed into every taste bud like a running spring, which made people memorable.
Pomegranate is not only edible, but its whole body is precious. Pomegranate peel can effectively treat intestinal infectious diseases such as diarrhea and dysentery. Pomegranate flower not only has hemostatic effect, but also has the effect of improving eyesight by soaking in water to wash your face; Eating pomegranate can strengthen the stomach, refresh the mind, increase appetite and prolong life.
Did you drool after listening to my introduction? Then go and taste pomegranate.