Read the following article and complete the question 12- 17.
(1) The fragrance of plants has many functions.
(2) The flowers of plants are fragrant and can be passed down to the next generation. In order to attract insects to pollinate, plant flowers not only present dazzling colors, but also emit charming flowers. So bees and butterflies are attracted to compete for honey, which is the so-called "bees compete for the fragrance of butterflies". As a result, pollen adheres to insects and settles everywhere with their flight and migration.
(3) There is a "factory" inside the fragrant flowers-oil cells, and the products in this "factory" are intoxicating aromatic oils. In addition to emitting fragrance and attracting insects to pollinate, the steam of this aromatic oil can also reduce the evaporation of water in petals and form a "protective coat" to protect plants from strong sunlight during the day and cold at night.
(4) The fragrance of plants' flowers is not only beneficial to their own growth and reproduction, but also beneficial to human beings. Aroma can stimulate people's respiratory center, thus promoting people to inhale oxygen and expel carbon dioxide. Because the brain has enough oxygen, it can keep people energetic for a long time. In addition, fragrance information can leave a deep impression on people's memory, stimulate the sense of smell and enhance people's memory.
(5) The use of floral fragrance for health care and disease prevention has a long history in China. Hua Tuo, an ancient medical sage, made a small and exquisite sachet of cloves and hung it indoors to prevent and treat tuberculosis, vomiting and diarrhea. In ancient times, people put honeysuckle in pillows to relieve headaches and blood pressure. At the same time, it also has the function of diminishing inflammation and relieving cough.
(6) Different floral scents can cause different feelings. For example, the fragrance of osmanthus makes people very tired; The fragrance of chrysanthemum makes people think clearly. However, everything is in two. Some floral scents can also bring side effects to people. Such as lilies and orchids, can cause dizziness and instant dullness.
12. Add some words and phonetic notation.
Instantaneous replication
13. The content of this article is.
14. In paragraph (4), what two aspects does it say that the fragrance of flowers is "beneficial to human beings"? (No more than six words in each aspect)
Answer: ① ②
15. The underlined sentences in paragraph (4) play a role in the text.
16. Why can't the floral fragrance of plants be deleted?
A:
17. Paragraph (5) lists two examples. what is the purpose?
Plant Description 2 Peach belongs to Rosaceae, Peach and Peach Subgenus in plant taxonomy, and is a small deciduous tree. Generally, trees are 3-4 meters high. Weak and dry, open crown. Young trees grow vigorously, with 1 year growth branches reaching 1 meter or more. Buds are precocious and the crown forms rapidly. It begins to bear fruit early, starting to bear fruit 2-3 years after planting, and reaching the full fruit stage in 6-7 years. /kloc-aged gradually after 0/5 ~ 20 years, and its life span was short. General management can maintain high yield for 25 ~ 30 years.
Peaches first grew in China and can be traced back to BC 10 century. At that time, there were documents about peaches. Peaches were first discovered in western countries around 300 BC. The Greek philosopher Theophrastus thought that peach came from Persia, so he called it Persian apple. In the first century, some Romans mentioned that they imported peaches from Persia, assuming that peaches arrived in Europe in AD 0. As for Britain, peaches were not recorded until 1650 BC. As for English Peach, it comes from Latin prunuspersica. 1779, peaches were harvested in the mountainous area of Niagara Valley in the northeastern United States, becoming the earliest peach consumer goods in the United States.
Peach is rich in nutrition: the flesh is rich in sweet juice and iron, which can increase the amount of hemoglobin in human body. According to legend, eating peaches often can "benefit color", which may be the reason. The contribution of peach, in addition to peach meat can enrich blood and nourish skin, peach kernel also has the functions of promoting blood circulation and removing blood stasis, relieving asthma and relieving cough. There is a prescription in Chinese medicine called Wuren decoction, which can moisten the intestines and relax the bowels and promote blood circulation. Ingredients include peach kernel, hemp seed, Prunus mume kernel, Platycladus orientalis kernel and almond, which is especially helpful for people with dry stool, stagnation of liver blood and amenorrhea. It should be noted that peach kernel can promote blood circulation, and it is not suitable for menorrhagia or menstrual period. Gum from peach trees is also a panacea, which can strengthen and nourish and regulate blood sugar levels.
Peach varieties are divided into five categories according to maturity: extremely early maturity, early maturity, medium maturity, late maturity and extremely late maturity. The fruit development period (that is, the days from full flowering to fruit ripening) is very early, 80 ~ 85 days early, 100 ~ 120 days middle, 120 ~ 150 days late, 150 days or more.
In addition, peach fruit can be divided into yellow peach and white peach according to pulp color; According to the use, it is divided into fresh food varieties, processed varieties, dual-purpose varieties and ornamental peaches. According to the fruit characteristics, it is divided into peach, nectarine and flat peach.
Peach is the largest cultivation area in China, with a wide variety, which is widely distributed all over the country from south to north, accounting for more than 80%, among which Yangshan area of Taihu Lake, a water town in the south of the Yangtze River, is the most famous peach producing area. Its official website is that in recent years, the planting area of nectarine is on the rise, and flat peaches are also selling well in the market, and ornamental peaches are even more outstanding.
Explanatory text about plants 3 Once succulents are on the market, they are very popular with people, especially girls.
First of all, what is meaty? Baidu's explanation is that succulents are used in gardening, also known as succulents or succulents. Succulent plants refer to higher plants with hypertrophy of vegetative organs, which usually have three vegetative organs: root, stem and leaf, and three reproductive organs: flower, fruit and seed.
But there are also many problems, such as too much watering, not mixing soil, unsuitable growing environment and too much water. So, I went online to find an expert to check, and it did pay off.
First of all, it is best to suggest watering can spraying. Under normal circumstances, water should not be sprayed from above, but must be poured enough. Moreover, the soil must be loosened frequently, so that the basin soil can absorb enough water easily and evenly, and the basin soil should be kept moist without water accumulation, and the water should be poured thoroughly, without water accumulation and too dry. Summer varieties can be properly watered, but not too much, so as not to drown more meat. And if it is rainy or the temperature drops suddenly, it is necessary to stop watering.
As for fertilization, winter-type and intermediate-type succulents apply decomposed dilute liquid fertilizer or compound fertilizer once every 20 days or so. Fertilization time can be in sunny morning, so don't splash fertilizer solution on plants to avoid burns. Fertilization is not needed in summer.
According to experts, the temperature of 15~28 is the most suitable for raising meat, but if the temperature is 5~35, it is the limit that meat can bear. This must be remembered, be careful that the meat will freeze to death or dry to death.
You can also use pebbles to pave the road, and try to choose one with strong water absorption and sufficient porosity. So as to accelerate that wat emission on the soil surface and be beneficial to the drying and wet of succulent seeds.
Mixing soil is one of the most important links. Although there is no need to care too much, it is better to moisturize. Experts mean that coconut milk, 1-3mm granular soil and vermiculite can be considered in any proportion. Generally, granular soil accounts for less than 1/3, and vermiculite can be less.
Some succulents have small and unstable seedlings, and paving stones can also fix succulents.
Seeing the above method, do you also have a preliminary understanding of meaty? Moreover, experts also say that the fleshy new generation grows very fast and can keep the characteristics of their parents as lovely. Sowing also belongs to sexual reproduction, which is generally used to cultivate new varieties, and it is also possible to get mutant varieties.
Action is not as good as action, so hurry up! My relatives grow cute and fleshy, and let them breed and grow fleshy, which is a necessary birthday gift for relatives and friends.
Today, our school organized a spring outing to Shanghai Botanical Garden. I am very excited.
We came to Shanghai Botanical Garden. I was deeply impressed by several heat-tolerant plants.
There is a kind of cactus, whose scientific name is pereskiaaculeate. Alias tiger thorn. There is also a cactus in my house, which is potted. It seems that it has never blossomed, let alone borne fruit. This cactus not only blooms and bears fruit, but also the fruit is edible. It is also a climbing shrub. Just like its nickname, its stems are covered with thorns. Its flowers grow on the branches of the stem and look like cones. It smells like a fragrance. It feels special. It is said that it mainly grows in tropical areas of America and India.
There is a heat-resistant plant with a strange name called Luan Xue. I'm curious why it's called chaotic snow. Careful observation shows that its leaves are long and flat. The surface is smooth, much like palm leaves in my hometown, but its leaves are very narrow. The whole looks like fireworks being sprayed. It looks really messy. ...
What impressed me the most was a plant called Diwanghua, which originated in South Africa and was widely planted there. But for us, it is rare. The flower body of Wanghua is huge, surrounded by beautiful bracts, with extremely bright colors and elegant and free from vulgarity. It occupies a very important position in the world's precious flowers, so it is called the king flower. Diwanghua is a perennial evergreen shrub with many stems and a life span of more than 100 years. Not only the overall life span is long, but also the stamens in the flower ball of the king flower can be opened for a long time, making it a dazzling landscape in the garden in a few months, and can also be placed as fresh cut flowers for a long time. It is said to be "unbeaten for a long time", which naturally represents a strong and tenacious vitality, and perhaps also symbolizes victory, perfection, wealth and auspiciousness. It is regarded as the national flower by South Africans. Gorgeous king flowers gather in the cape of South Africa where flowers are everywhere. In dry summer, there are often fires, but it is a godsend for Wang Hua, because fire is the condition for its survival. Its fruit is too hard for birds and mice to eat, so it can only be broken by the high temperature of fire and sprayed on the ground. After the fire, fertile soil is a paradise for the king flowers to multiply.
When we walked out of the botanical garden with surprise and laughter, our hearts entered nature. ...
There is a ginkgo tree in front of my house, which is as high as three floors.
In spring, Ginkgo biloba leaves are green, like a lively and lovely baby. When the wind blows, it seems to be waving to you.
Ginkgo trees are more eye-catching in summer, and their leaves change from light green to green, like a small fan. Sitting under the tree, you can still feel the coolness and feel very comfortable.
In autumn, the leaves turn yellow slowly. A gust of autumn wind blew, and every leaf reluctantly left Mother Tree and returned to Father Earth. Everyone is busy picking ginkgo leaves, because the tea made from ginkgo leaves tastes delicious and refreshing.
In winter, ginkgo trees don't need human protection like other trees. They have strong vitality, just like a strong and brave soldier.
The ginkgo tree in front of my house has lived for hundreds of years and is now protected by the Forestry Bureau. I love the ginkgo tree in front of my house!
Explanatory text about plants 6 In the plant kingdom, each plant has its own uniqueness. Some are colorful, luxurious and elegant; Some fragrance is attractive and refreshing; Some are thick and tall, which is very strange. However, the unpretentious appearance of plum blossom and Shuang Ling's personality make people admire and love it.
In this winter when flowers and trees are dying, only plum blossoms are competing for fragrance and beauty. Look! Clusters of delicate plum blossoms, like blossoming peach blossoms; Like a hazy fog; Like transparent foam, more dazzling than flying snow. The little bones on the plum tree are bulging day by day, revealing a red mouth, round, like a smiling little girl. At this time, a cold wind blew, and clusters of plum blossoms swayed gently and smelled fragrant. I feel refreshed when I come. Ah! A plum blossom fell, and I immediately reached out to pick it up. Careful observation shows that the pale scarlet petals are like a delicate little porcelain vase. Looking at this petite plum blossom, I suddenly have a feeling that these plum blossoms are still so lonely and beautiful in the bleak winter, although they are not as dancing as bees and butterflies and as noble and gorgeous as roses.
Looking at this plum blossom shivering in the cold wind, I can't help but feel a sense of respect, and I can't help but think of "there are several plum blossoms in the corner, and Ling Han is alone", yes! Only plum blossoms are proud of the ice and snow. Wang Mian at this time, is a person's "don't praise lewd, just clean the atmosphere". I admire the purity and selflessness of plum blossom. It gives people its beauty, but it leaves in the flowering season.
Ah! Plum blossoms are the vitality you ignite in winter. You greet spring silently, but you leave quietly.
There is a ginkgo tree in front of my house, which is as high as three floors.
In spring, Ginkgo biloba leaves are green, like a lively and lovely baby. This metaphor is very vivid. When the wind blows, it seems to be waving to you.
Ginkgo trees are more eye-catching in summer, and their leaves change from light green to green, like a small fan. Sitting under the tree, you can still feel the coolness and feel very comfortable.
In autumn, the leaves turn yellow slowly. A gust of autumn wind blew, and every leaf reluctantly left Mother Tree and returned to Father Earth. Taking care of the above, leaves are like babies. Everyone is busy picking ginkgo leaves, because the tea made of ginkgo leaves is delicious and refreshing.
In winter, ginkgo trees don't need human protection like other trees. They have strong vitality, just like a strong and brave soldier.
The ginkgo tree in front of my house has lived for hundreds of years and is now protected by the Forestry Bureau. I love the ginkgo tree in front of my house!
Explain the eighth article about plants in flowers. Some people like gorgeous and noble peony, some like sweet-scented osmanthus, and some like romantic roses … What about me? I like ordinary hyacinthus orientalis. It stands quietly in front of my desk, but I often can't help looking at it.
Hyacinthus orientalis's seeds are big, like garlic playing with mud, and like fat-reduced onions.
Soak it in water, and in a few days, it will grow a few "hairs" on its head, which are green, hard and lovely, and long "beards" will grow under the seeds, interwoven with each other, making the whole hyacinthus orientalis look like a grotesque jellyfish, which is very funny.
As the days passed, hyacinthus orientalis blossomed. Its flowers are very beautiful, its stamens are purplish red, and its petals gradually change color. From the inside out, the color is getting lighter and lighter. "Even a professional painter can't adjust this color!" I often admire it like this.
The flowers in hyacinthus orientalis are getting denser and denser. It looks like corn in full bloom. Like a pale pink sorghum.
Hyacinthus orientalis likes sunshine, but she is very hardy.
This is hyacinthus orientalis. You must be very interested after listening to my introduction!