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In autumn, due to the shortening of daylight and the plummeting temperature, various pigments and substances in the leaves begin to produce chemical effects. After autumn, the temperature difference between day and night is large, and the strong light during the day will accelerate photosynthesis and continuously decompose chlorophyll, and the low temperature at night hinders the synthesis of chlorophyll in respiration, so the chlorophyll in the leaves begins to gradually decrease, and the lutein, carotene and anthocyanins that were originally covered by chlorophyll begin to appear. Lutein and carotene turn leaves yellow, while anthocyanins turn red.
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It reads as follows:
1. The autumn rain gives gold to the fields, and the fields are like a golden ocean, rippling and dancing with the joy of harvest.
2. The autumn rain gave the morning glory pink.
Morning glory resembles a small trumpet.
A symphony was played.
3. The blue of autumn rain gives the sea, and the sea is choppy, bringing the coolness of autumn.
Autumn rain, a box of colorful paints. You see, it gave the apple red, like a little sister's face, and jumped and jumped and jumped for people to eat! He gave purple to the grapes, and the grapes were like strings of pearls.
It gave the yellow color to the pears, and the pears resembled small gourds. It gave the green to the watermelons, and the big watermelons rolled and rolled down the hillside.
The people at the bottom of the mountain all opened the watermelons one by one and shared them. Orange is for persimmons and oranges, and they are chasing each other one by one, and you have to fight in the competition. Morning glory has more colors, including red, yellow, and white ......Beautiful flowers compete in the breeze.
Autumn Rain" is the text of the 6th lesson of the third grade of Chinese edited by the Ministry of Education, the author is Tao Jinhong, and the reader is Zhang Lei.
This is a very lyrical prose called Writing Autumn Rain, which is actually writing about autumn. The content of the text is rich and colorful, the author grasps the characteristics of autumn, starting from the arrival of autumn, writing about the colorful colors of autumn, the harvest scene of autumn, and the scene of various animals and plants preparing for winter in late autumn.
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As follows:
1. Blue, autumn is crisp, and the sky is very blue at this time.
2. Orange red, red, this is the color of the autumn harvest, if it is ripe and turns red, the maple leaves will also turn red in autumn.
3. Autumn is golden: the rice is golden, looking at the past like a golden ocean from afar, the autumn wind blows the rice and shakes and waves; The fallen leaves are golden and yellow, and when they float down, they are like a golden butterfly dancing in the wind.
4. Yellow, golden, orange, such as leaves turning yellow, wheat harvest, chrysanthemums in full bloom.
5. Green, although autumn is coming, but the south is like spring all year round, there is still green, and in the north before winter, there is still green.
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Hello dear, happy to answer your questions. The leaves turn yellow in autumn. Elm, mulberry, sycamore, maple, maple, locust and many other trees have their leaves turning yellow in autumn. Rice will turn yellow, wheat will turn yellow, persimmons will turn yellow, grapefruit will turn yellow, and oranges will turn yellow.
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Autumn is golden yellow.
Because, the heavy ears of rice in the field are golden and yellow, undulating with the wind, like a golden ocean.
Autumn means that rainfall, storms, etc. tend to decline or decrease, and everything in nature begins to grow from lush to mature. The beginning of autumn does not mean the end of the hot weather, the so-called "hot in the dogs", according to the calculation method of "the three dogs", the beginning of the autumn to the summer is often still in the "three dogs" period, so the weather in early autumn is still very hot, and the real coolness is generally after the Bailu solar term. The watershed between hot and cool.
In autumn, not at the turn of summer and autumn.
The climate in autumn is divided into two phases, early autumn is "muggy" and mid-autumn.
The latter tends to be characterized by "dry" and "cool" climates. In general, the altitude angle of the sun enters autumn.
Gradually lowering, the temperature gradually decreases from heat; The autumn breeze is cool, the scorching heat is gone, the fruit is full of branches, and the fields are golden.
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The autumn rain gave the yellow color to the ginkgo tree, and the leaves were like a small fan, fanning away the summer heat; gave the red to the maple tree, and the red maple leaves were like stamps, wah, wah, wah, and the coolness of autumn came; Give the golden yellow to the field, and the field is like a golden ocean, rippling and rippling, dancing with the hope of a good harvest.
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1. Autumn gave purple to the grapes, and the purple grapes were like a lamp, shining and shining and shining out of the autumn light.
2. Autumn gave the red to the maple tree, and the red maple leaves were like stamps, wah, wah, wah, and the coolness of autumn came.
3. Autumn gives the fields golden yellow, and look, the fields are like a golden ocean.
4. In autumn, the orange-red color is given to the fruit trees, and you squeeze and touch the oranges and persimmons, vying for people to pick them.
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It gave the red color to the apple, and the apple was called the same as Peng's child's face.
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1. Autumn gives gold to the wheat fields.
2. Autumn gave orange to pears.
3. Autumn gives yellow to the leaves.
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The main color of autumn should be yellow, because most plants will turn yellow before their leaves fall and then lose their leaves;
At the present time, when you go to a certain mountainous area, all you see are yellow leaves;
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Autumn is a golden season, a harvest season, and it can bring people a warm feeling.
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Autumn is golden, symbolizing the joy of harvest, such as falling leaves, ripe wheat, etc., in addition, autumn should also be golden in the five elements. Some poems also use gold to describe autumn, such as the meeting of golden wind and jade dew, and there are various idioms to describe autumn with gold.
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Autumn is a touch of gold with a little joy.
A wisp of blue with a hint of melancholy.
A little gray with a little sadness.
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The autumn wind should be so pure that it doesn't stain the dust, and it feels like this.
The winter wind should be mixed with a hint of white.
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On the osmanthus tree, autumn is golden.
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Autumn is a golden season, a harvest season.
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Golden. During the harvest season, the color is, of course, golden. Adopt me.
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Golden, yellow, red, colorful, autumn harvest season.
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Golden, because many of the fruits are ripe.
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What color you think it is, it's color.
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Gray, because it is very depressed, desolate.
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Sorghum said: Autumn is fiery red, and I call autumn color red.
Cotton said: Autumn is white, so I am so covered in silver.
Mo Ju said: Autumn makes black, and the flowers I open are proof.
Songbai said: There is no difference between autumn and summer, they are both verdant like me.
Maple Leaf said: Autumn is orange red, I just let the autumn wind blow red.
The grapes said, "Autumn is purple, and I call autumn purple."
The apple is red. The leaves of the maple tree are red.
Autumn is the season of harvest.
The leaves turn yellow and the fruits are ripe.
The main reason why the leaves on the tree turn yellow in autumn is that the leaves contain substances such as chlorophyll, lutein and carotene. In spring and summer, chlorophyll is much more abundant in the leaves than other pigments, so the leaves show the green color of chlorophyll and the color of other pigments is not visible.
Ancient poems about autumn are summarized below.
Autumn Wind Introduction" by Don Liu Yuxi. >>>More