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Poplar is the most common tree in the northwest of China. As long as there is grass, there is the shadow of poplar. Poplar is not very particular about living conditions. Roadside, beside the ridge, where there is loess, there is her survival. She doesn't chase rain, and she doesn't long for sunshine. As long as she can water the hardened land a little, a poplar will take root and sprout. As long as a little space is set aside for weeds to survive, she will decorate the yellow land and hold up a piece of green. She doesn't need to fertilize and water like a delicate lawn. As long as she doesn't use a knife and axe to chop, and gives her a relaxed environment to absorb free air, she will hold her head high. She never rejected the land where she grew up. She is not a vine, rooted in poor soil, happy-go-lucky, otherwise, because she belongs to the grassroots. Although poplar was born in poverty, it is the most concerned about the quality of life. There is still ice in the soil, and the spring breeze is still chilly. Green shoots have sprouted from her branches. Under the heavy pressure, every bud and leaf of her is striving for progress, never bending down to beg, and there is no flattering face. In the autumn wind, although the leaves have been stripped, the thin branches are still full of essence, and the branches stand upright and hold their heads high. In the severe winter, facing the sword, she still stands on the cold yellow land, with proud branches, silent trees and voices. At this time, the noble flowers and plants, however, are in the greenhouse, receiving the nutrients sent to the leaves and roots, lazily killing the bloodless days. Poplar's temperament is civilian, but it is the richest. She can be used as firewood, furniture, purlin and farm tools. Like the yellow land where she grew up, it is unpretentious. In some people's eyes, she will almost forget her existence. But for the barren yellow land, she is a brave person. Throughout the year, she stayed and decorated, which reduced the poverty and loneliness of the yellow land and increased the vividness and beauty, because her roots have been integrated with the yellow land. Poplar did not expect to transplant and migrate, even if her fallen branches and leaves were corroded by soil, it would add some nutrients and vitality to this yellow land. Under the thick loess, the immortal life of poplar is surging, and the yellow land is crisp and green. The sower sowed another poplar, and in a few years, the poplar will become a bigger green again.

Respondent: Frize-Level 4 March 4, 200712: 23.

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Poplar is a typical representative of poplar in Salicaceae.

Morphological characteristics of Salicaceae;

Trees or shrubs.

Simple leaves and stipules alternate.

Flowers unisexual, in a panicle.

Every flower has bracts, but no perianth, disk or gland. 2 stamens, pistil 1, ovary 1. Capsule, 2-4-valved, small seeds, many, with long hair at the base.

Identification characteristics of Salicaceae;

Woody, simple leaves alternate with stipules, panicles, no perianth, disk or gland. Capsule with small seeds and long hair at the base.

Respondent: Zhang Runtong-Grade 4 March 6, 200715: 37

Responder: Wing Fire-Level 2 March 6, 200718: 50

1. Poplar is a typical representative of poplar in Salicaceae.

Morphological characteristics:

Trees or shrubs.

Simple leaves and stipules alternate.

Flowers unisexual, in a panicle.

Every flower has bracts, but no perianth, disk or gland. 2 stamens, pistil 1, ovary 1. Capsule, 2-4-valved, small seeds, many, with long hair at the base.

Living environment:

Living habits:

Poplar's temperament is civilian, but it is the richest. She can be used as firewood, furniture, purlin and farm tools. Like the yellow land where she grew up, it is unpretentious. In some people's eyes, she will almost forget her existence. But for the barren yellow land, she is a brave person. Throughout the year, she stayed and decorated, which reduced the poverty and loneliness of the yellow land and increased the vividness and beauty, because her roots have been integrated with the yellow land. Poplar did not expect to transplant and migrate, even if her fallen branches and leaves were corroded by soil, it would add some nutrients and vitality to this yellow land. Under the thick loess, the immortal life of poplar is surging, and the yellow land is crisp and green.

Second, the poplar:

Paul Cézanne's masterpiece (1839- 1906). The representative of the post-impressionism, who pursued the form of expression all his life, made new creations in the use of color and modeling, and was called "the father of modern painting". Cezanne opposes the separation of sketch and color in traditional painting concept, and pursues the perspective of objects through color. His paintings are harmonious and beautiful in color.

1879 In early April, Cezanne moved to Meilun. The town is located 30 kilometers southeast of Paris, not far from Fontainebleau. Every day, he takes an easel and paints to choose the scenery he wants to paint, and his special preference is a small village called Mansi nearby. Pissarro loves rural farming and the daily life of rural residents; Cezanne is completely different. He is fully concerned with the natural scenery that is not disturbed by people or animals. His choice of scenery is not based on its beauty, but on whether it meets the standard of pure modeling from the perspective of lines, colors, light and space. In the quiet countryside, he made some adjustments to the style he had formed as an adult, and drew patterns similar to carpet nets on the screen with long and oblique brushwork. This reticular pattern of light circulation is the main feature of his works such as Poplar painted in Pontoise the following year.

The scenery painted by Cezanne in this painting is near the castle of Ma Gulville in Patty village, not far from Pontoise; For more than ten years, he has often come here to paint. When he reached the roadside overlooking the scene, he began to construct the picture space, regardless of the realistic effect or not. The path planted with poplars has an "S" curve, and he uses this lively curve to arrange different levels of its composition. Therefore, the scene deep in the picture is smaller than the scene in front of the picture; However, unlike illusion or photography, the scenery he painted has no vague feeling and its color is not inferior. The mechanical effect of this geometric structure is alleviated by the light and air passing through it, and the blank left by the use of light pigment between inclination and brush strokes makes this movement of light and air more obvious. The patterns drawn with unified brushwork are very energetic, which makes the towering trees with swaying leaves in the wind present a sense of rhythm close to music.

When Cezanne painted his landscape paintings, the pigments used in his palette were very limited, that is, light green and Siena earth tone were mixed, and they were also used to represent the blue and white of the sky and the stone fence beside the well. The latter two colors were painted in the center and right side of the picture. He drew slowly, sketching the pattern directly with pigment, without drawing a sketch showing the outline of the picture first. The criss-crossing brushstrokes achieve a perfect balance with each other, which makes the painted scenery give people a sense of stability, which is very close to the traditional concept of painters in the 17th century. He once wrote: "I want impressionist painting to become a solid art, as long as the works of art collected in museums."

[Prose]: That piece of poplar.

Li Siping

When the north wind turns to the south wind and becomes soft and warm, 2000 poplars in Liyang high school campus have become a particularly eye-catching landscape on the eastern Henan plain.

In the hearts of many people in Minquan County, Henan Province, the poplar tree that grows tall and straight on the sand is constantly showing a brand-new hope. In their minds, the sound of books coming from that poplar tree in the morning seems to be the most beautiful sound in the world, a melody full of spring breath, which makes them fall in love; In the evening, they often look at the four-story building in Yangshuli. The bright lights in the classroom will relieve their fatigue after a day's work, inject warmth into their hearts and bring comfort ...1In the spring of 999, Ding Chuantao, an old civil rights teacher who taught in Beijing No.9 Middle School for more than 40 years, retired at home to spend his old age, but he could not stand the advice of the villagers and could not let go of his education in his hometown. When "Liyang High School" appeared in the eastern plain of Henan Province, they had a clearer goal and a stronger desire: in this land that nurtured the great philosopher Zhuang Zhou and writer Jiang Yan and once owned "Liyang Academy", Liyang High School will strive to create conditions for people with poor families, provide help to those who are facing dropping out of school, and give them a chance to study again and rebuild their confidence in life.

With the quiet birth of Liyang High School, rows of ordinary and tall poplars have been planted on the campus, and simple and diligent high school students have also entered. Poplar trees have the possibility of sprouting in the spring breeze because of the rooted land. As a result, they shed their shade in the summer sun and sang passionate songs in the autumn wind. On the campus of Liyang Senior High School, which covers an area of 54 mu, every poplar tree has witnessed the daily changes here, recorded the progress of the students, and felt many unspeakable friendships with its new life course.

Those old teachers who retired from the podium gave up their leisure in their later years and rekindled their fighting spirit here, igniting new hopes for students and guiding them to a bright future; The care of people from Beijing's cultural circles not only makes those recipients feel at ease in their studies, but also makes more young people feel the warmth of being concerned and gain the motivation to devote themselves to their studies and strive for knowledge. That's it, there is no noisy and impetuous spirit and aggressive fashion on campus, and students live a simple and tense life calmly. At every dawn, in the clear cry, they all walk out of the dormitory early, and carefully start a brand-new and fulfilling day on the wide playground and under the straight poplar trees. The efforts and self-improvement of the students deeply touched the teachers and made them more refreshed. In such a situation, teachers are not only gratified, but also have a new passion for life. The harmonious interaction between teaching and learning and the all-round communication between heart and heart have become the most moving bright colors in this simple campus.

Time flies. Poplar trees originally planted on campus have taken deep roots, thick trunks and lush foliage, and new seedlings are thriving year after year. Similarly, the first batch of 135 students in Liyang High School have completed their studies. In the college entrance examination in 2002, 133 students reached the admission line of universities, technical secondary schools and higher vocational colleges, and some even entered key universities. Those peasant children who were originally faced with dropping out of school, just like poplar trees on campus, have a land that takes root and sprouts, so that they can be nourished by knowledge and make continuous progress, thus having a broader world and changing their personal destiny.

The poplars on campus are swaying gently in the spring sunshine, and the new leaves on the branches are full of vitality. In the surging reading sound of spring tide, every poplar tree is so tall and straight, showing its own life landscape and extending its calmness after winter.

Poplar is the most common tree in northwest China, which belongs to grassroots. As long as there is loess, give it a little water and it will survive. Its temperament is very civilian. Can be used as firewood, furniture and so on. This is a beautiful scenery in the northwest of China. She doesn't need someone to fertilize or water it like a delicate lawn. As long as she doesn't use a knife and axe to chop, and gives her a relaxed environment to absorb free air, she will hold her head high. She never rejected the land where she grew up. She is not a vine, rooted in poor soil, happy-go-lucky, otherwise, because she belongs to the grassroots. Although poplar was born in poverty, it is the most concerned about the quality of life.

Very concise! ! ! !