植物科学英文案例一
英语故事两篇(植物类)--比赛实用englishstory[资料]
English story(4)Wise FolksOne day a peasant took his good hazel-stick out of the corner and said to his wife, "Trina, I am going across country, and shall not return for three days. If during that time the cattle-dealer should happen to call and want to buy our three cows, you may strike a bargain at once, but not unless you can get two hundred thalers for them; nothing less, do you hear?" "For heaven's sake just go in peace," answered the woman, "I will manage that." "Y ou, indeed," said the man. "Y ou once fell on your head when you were a little child, and that affects you even now; but let me tell you this, if you do anything foolish, I will make your back black and blue, and not with paint, I assure you, but with the stick which I have in my hand, and the colouring shall last a whole year, you may rely on that." And having said that, the man went on his way.Next morning the cattle-dealer came, and the woman had no need to say many words to him. When he had seen the cows and heard the price, he said, "I am quite willing to give that, honestly speaking, they are worth it. I will take the beasts away with me at once." He unfastened their chains and drove them out of the byre, but just as he was going out of the yard-door, the woman clutched him by the sleeve and said, "Y ou must give me the two hundred thalers now, or I cannot let the cows go.""True," answered the man, "but I have forgotten to buckle on my money-belt. Have no fear, however, you shall have security for my paying. I will take two cows with me and leave one, and then you will have a good pledge."The woman saw the force of this, and let the man go away with the cows, and thought to herself, "How pleased Hans will be when he finds how cleverly I have managed it!" The peasant came home on the third day as he had said he would, and at once inquired if the cows were sold? "Y es, indeed, dear Hans," answered the woman, "and as you said, for two hundred thalers. They are scarcely worth so much, but the man took them without making any objection." "Where is the money?" asked the peasant. "Oh, I have not got the money," replied the woman; "he had happened to forget his money-belt, but he will soon bring it, and he left good security behind him." "What kind of security?" asked the man. "One of the three cows, which he shall not have until he has paid for the other two. I have managed very cunningly, for I have kept the smallest, which eats the least." The man was enraged and lifted up his stick, and was just going to give her the beating he had promised her.Suddenly he let the stick fail and said, "Y ou are the stupidest goose that ever waddled on God's earth, but I am sorry for you. I will go outinto the highways and wait for three days to see if I find anyone who is still stupider than you. If I succeed in doing so, you shall go scot-free, but if I do not find him, you shall receive your well-deserved reward without any discount."He went out into the great highways, sat down on a stone, and waited for what would happen. Then he saw a peasant's waggon coming towards him, and a woman was standing upright in the middle of it, instead of sitting on the bundle of straw which was lying beside her, or walking near the oxen and leading them. The man thought to himself, "That is certainly one of the kind I am in search of," and jumped up and ran backwards and forwards in front of the waggon like one who is not very wise. "What do you want, my friend?" said the woman to him; "I don't know you, where do you come from?" "I have fallen down from heaven," replied the man, "and don't know how to get back again, couldn't you drive me up?" "No," said the woman, "I don't know the way, but if you come from heaven you can surely tell me how my husband, who has been there these three years is. Y ou must have seen him?" "Oh, yes, I have seen him, but all men can't get on well. He keeps sheep, and the sheep give him a great deal to do.They run up the mountains and lose their way in the wilderness, andhe has to run after them and drive them together again. His clothes are all torn to pieces too, and will soon fall off his body. There is no tailor there, for Saint Peter won't let any of them in, as you know by the story." "Who would have thought it?" cried the woman, "I tell you what, I will fetch his Sunday coat which is still hanging at home in the cupboard, he can wear that and look respectable. Y ou will be so kind as to take it with you." "That won't do very well," answered the peasant; "people are not allowed to take clothes into Heaven, they are taken away from one at the gate." "Then hark you," said the woman, "I sold my fine wheat yesterday and got a good lot of money for it, I will send that to him. If you hide the purse in your pocket, no one will know that you have it." "If you can't manage it any other way," said the peasant, "I will do you that favor." "Just sit still where you are," said she, "and I will drive home and fetch the purse, I shall soon be back again. I do not sit down on the bundle of straw, but stand up in the waggon, because it makes it lighter for the cattle." She drove her oxen away, and the peasant thought, "That woman has a perfect talent for folly, if she really brings the money, my wife may think herself fortunate, for she will get no beating." It was not long before she came in a great hurry with the money, and with her own hands put it in his pocket. Before she went away, she thanked him again a thousand times for his courtesy.When the woman got home again, she found her son who had come in from the field. She told him what unlooked-for things had befallen her, and then added, "I am truly delighted at having found an opportunity of sending something to my poor husband. Who would ever have imagined that he could be suffering for want of anything up in heaven?"The son was full of astonishment. "Mother," said he, "it is not every day that a man comes from Heaven in this way, I will go out immediately, and see if he is still to be found; he must tell me what it is like up there, and how the work is done." He saddled the horse and rode off with all speed. He found the peasant who was sitting under a willow-tree, and was just going to count the money in the purse. "Have you seen the man who has fallen down from Heaven?" cried the youth to him. "Y es," answered the peasant, "he has set out on his way back there, and has gone up that hill, from whence it will be rather nearer; you could still catch him up, if you were to ride fast." "Alas," said the youth, "I have been doing tiring work all day, and the ride here has completely worn me out; you know the man, be so kind as to get on my horse, and go and persuade him to come here." "Aha!" thought the peasant, "here is another who has no wick in his lamp!" "Why should I not do you this favor?" said he, and mounted the horse and rode off in a quick trot.The youth remained sitting there till night fell, but the peasant never came back. "The man from Heaven must certainly have been in a great hurry, and would not turn back," thought he, "and the peasant has no doubt given him the horse to take to my father." He went home and told his mother what had happened, and that he had sent his father the horse so that he might not have to be always running about. "Thou hast done well," answered she, "thy legs are younger than his, and thou canst go on foot."When the peasant got home, he put the horse in the stable beside the cow which he had as a pledge, and then went to his wife and said, "Trina, as your luck would have it, I have found two who are still sillier fools than you; this time you escape without a beating, I will store it up for another occasion." Then he lighted his pipe, sat down in his grandfather's chair, and said, "It was a good stroke of business to get a sleek horse and a great purse full of money into the bargain, for two lean cows. If stupidity always brought in as much as that, I would be quite willing to hold it in honor." So thought the peasant, but you no doubt prefer the simple folks.One Story about SnakesThere was once a little child whose mother gave her every afternoon a small bowl of milk and bread, and the child seated herself in the yardwith it. When she began to eat however, a snake came creeping out of a crevice(裂缝)in the wall, dipped its little head in the dish, and ate with her. The child had pleasure in this, and when she was sitting there with her little dish and the snake di d not come at once, she cri ed,"Snake, snake, come swiftlyHither come, thou tiny thing,Thou shalt have thy crumbs of bread,Thou shalt refresh thyself with milk."Then the snake came in haste, and enjoyed its food. Moreover it showed gratitude, for it brought the child all kinds of pretty things from its hidden treasures, bright stones, pearls, and golden playthings. The snake, however, only drank the milk, and left the bread-crumbs alone. Then one day the child took its little spoon and struck the snake gently on its head with it, and said, "Eat the bread-crumbs as well, little thing." The mother, who was standing in the kitchen, heard the child talking to someone, and when she saw that she was striking a snake with her spoon, ran out with a log of wood, and killed the good little creature.。
植物的科学分类英文版
• The broadest category of scientific classification is the Kingdom-either plant or animal. • The broadest category in the plant kingdom is division or phylum.
Thallophytes
Bryophytes
Pteriophytes
Spermatophytes
• Contains flowering or seed-bearing plants • Two subdivisions are:
– Gymnosperms: Seeds are not in an ovary they are in a cone. – Angiosperms: Seeds are enclosed in an ovary (fruit), therefore flowering plants
Scientific Names
• Latin is the language used for scientific classification. • The first word is the genus and the second word is the species. If there are additional words, they indicate a variety or cultivar.
关于植物的实验英文作文
关于植物的实验英文作文An Experiment on the Effect of Light on Plant Growth。
Introduction。
Plants are essential to life on Earth as they provide oxygen, food, and shelter for many living organisms. Photosynthesis is the process by which plants convert light energy into chemical energy, which is used to produce glucose, a type of sugar that is essential for plant growth. Light is therefore a critical factor for plant growth and development. In this experiment, we aimed to investigatethe effect of light on plant growth by exposing plants to different light conditions.Materials and Methods。
We used bean seeds as our experimental plants. Weplaced them in three groups: one group was placed in a dark room, the second group was placed in a room with naturallight, and the third group was placed in a room withartificial light. We watered the plants regularly and recorded their growth over a period of two weeks.Results。
神奇的植物迎春花英语作文
神奇的植物迎春花英语作文(中英文实用版)English Essay:Title: The Magical Plant - Welcome Spring FlowerSpring, the season of renewal and vitality, brings forth an array of colorful blossoms that enchant our senses.Among these, the Welcome Spring flower, also known as the "Magic Flower," holds a special place.This remarkable plant is not just a symbol of the approaching warmth and beauty but also a bearer of incredible characteristics.The Welcome Spring flower, scientifically known as Jasminum nudiflorum, is a wonder in the plant kingdom.Its vibrant yellow blossoms, appearing in the dead of winter or early spring, are a beacon of hope and joy.The plant"s ability to bloom before most other flowers is truly神奇(magical).It defies the cold and barrenness, ushering in the promise of life and renewal.The enchantment of the Welcome Spring flower doesn"t end with its timing.It has a unique growth habit; the stems can climb, trail, or grow upright, making it a versatile addition to any garden.Its evergreen foliage provides a constant splash of greenery, even during the coldest months.The fragrance of its flowers is intoxicating, creating a delightful atmosphere that can lift anyone"s spirits.Moreover, the Welcome Spring flower holds cultural significance.InChinese culture, it is known as "Ying Chun Hua" and is considered a harbinger of prosperity and good luck.Its early blossoms are often associated with the arrival of happiness and success in the coming year.People love to decorate their homes and celebrate the New Year with these vibrant flowers, hoping for a bright and fortunate future.In conclusion, the Welcome Spring flower is more than just a plant; it"s a symbol of hope, resilience, and beauty.Its magical properties of blooming in the cold, enchanting fragrance, and cultural significance make it a truly remarkable flower that captures the hearts of many.中文作文:标题:神奇的植物——迎春花春天,这个充满生机与活力的季节,带来了五彩斑斓的花朵,令人心醉神迷。
植物趣味科普英文作文
植物趣味科普英文作文英文:Plant Fun Science Popularization。
As a plant enthusiast, I find that there are many interesting facts about plants that people may not know. Here are some fun facts about plants that I would like to share with you.Firstly, did you know that plants can communicate with each other? Yes, it's true! Plants can release chemicals into the air or soil that can signal to other plants to prepare for danger or attract pollinators. For example, when a plant is attacked by insects, it can release chemicals that warn nearby plants to produce chemicals that repel the insects. This is called "plant communication."Secondly, plants can also "move" in response to their environment. For example, the Venus flytrap can close itsleaves around prey, and the mimosa plant can fold its leaves when touched. These movements are not due to muscle contractions like animals, but rather due to changes in water pressure and cell walls.Lastly, plants have amazing adaptations to survive in different environments. For example, cacti have evolved to store water in their thick stems, allowing them to survive in arid environments. The pitcher plant has adapted to attract and digest insects to obtain nutrients in nutrient-poor environments.Overall, plants are fascinating organisms that have many unique and interesting traits.中文:植物趣味科普。
研究植物的英语作文
研究植物的英语作文英文回答:I've always been fascinated by plants. They're like silent, green magicians, quietly working their wonders all around us. Let me take you on a journey through the enchanting world of plants.Firstly, let's talk about the sheer diversity of plants. From towering trees to delicate flowers, from succulentcacti to sprawling vines, there's a plant for every nicheon Earth. Each plant has its own unique adaptations and strategies for survival. Take the cactus, for example. Its ability to store water in its fleshy stems allows it to thrive in arid environments like deserts, where otherplants would wither and die.Plants also play a crucial role in the Earth's ecosystems. They act as the primary producers, harnessing the energy of the sun to convert carbon dioxide into oxygenthrough photosynthesis. This process not only provides oxygen for us to breathe but also forms the base of the food chain, supporting all life on Earth. Without plants, life as we know it simply wouldn't exist.But plants are more than just ecological powerhouses; they're also incredibly versatile. Humans have been harnessing the power of plants for thousands of years for food, medicine, shelter, and even recreation. Just think about all the delicious fruits and vegetables we enjoy,like apples, bananas, and tomatoes. And let's not forget about the medicinal properties of plants, from the calming effects of chamomile tea to the pain-relieving properties of willow bark, which contains natural aspirin.Moreover, plants have inspired countless cultural traditions and artistic endeavors. Throughout history, artists, poets, and writers have drawn inspiration from the beauty of flowers and the majesty of trees. In many cultures, plants hold symbolic meanings and are used in rituals and ceremonies. For example, the cherry blossom holds special significance in Japanese culture, symbolizingthe fleeting nature of life.In conclusion, plants are truly remarkable organismsthat deserve our admiration and respect. They're not just passive bystanders in the natural world; they're active participants, shaping the environment and sustaining life. So let's take a moment to appreciate the incrediblediversity and importance of plants in our lives.中文回答:植物一直以来都吸引着我。
英语植物介绍的作文
英语植物介绍的作文English Answer:Plants are multicellular eukaryotes that arecategorized as the kingdom Plantae. They are autotrophs, meaning they can produce their own food through photosynthesis using sunlight, carbon dioxide, and water. Plants have a variety of structures, including roots, stems, leaves, flowers, and fruits. They play a vital role in the Earth's ecosystems, providing food, oxygen, and shelter for other organisms.The study of plants is called botany. Botanists are scientists who study the structure, function, and classification of plants. They also study the interactions between plants and their environment. Plants have been used by humans for centuries for food, medicine, and clothing.Here are some examples of plants:Trees: Trees are large, woody plants with a single stem. They have branches and leaves, and they can grow tobe very tall. Examples of trees include oak trees, maple trees, and pine trees.Shrubs: Shrubs are smaller than trees and havemultiple stems. They are typically less than 10 feet tall. Examples of shrubs include roses, hydrangeas, and azaleas.Herbs: Herbs are non-woody plants that do not have a persistent stem. They typically grow low to the ground. Examples of herbs include basil, parsley, and oregano.Flowers: Flowers are the reproductive organs of plants. They are typically brightly colored and fragrant. Examplesof flowers include roses, daisies, and sunflowers.Fruits: Fruits are the mature ovaries of plants. They typically contain seeds and are often fleshy and sweet. Examples of fruits include apples, oranges, and bananas.中文回答:植物是多细胞真核生物,属于植物界。
高中植物英文作文模板
高中植物英文作文模板英文:As a high school student, I have learned a lot about plants in my biology classes. Plants are an essential partof our ecosystem, and they play a crucial role in our lives. They provide us with food, oxygen, and many other resources that we need to survive.One of the most fascinating things about plants istheir ability to adapt to different environments. For example, cacti are able to survive in the desert because they have evolved to store water in their thick stems and leaves. Similarly, plants that grow in areas with low sunlight have developed larger leaves to absorb as muchlight as possible.Another interesting aspect of plants is their abilityto communicate with one another. Through chemical signals, plants can warn each other of potential threats, such asinsect attacks or drought conditions. This communication allows plants to work together to survive and thrive in their environment.In addition to their practical uses, plants also have a significant cultural and aesthetic value. Many cultures have used plants for medicinal purposes for centuries, and they are often used in religious ceremonies and rituals. Plants are also a common subject in art and literature, and they can add beauty and life to any space.Overall, plants are an essential part of our world, and we should appreciate and protect them. By understanding their importance and studying their behavior, we can learn more about the natural world and our place in it.中文:作为一名高中生,我在生物课上学到了很多关于植物的知识。
植物介绍作文英文
植物介绍作文英文"The Magnificent Sunflower"The sunflower is a truly remarkable plant. It has a tall and sturdy stem that can reach impressive heights. The leaves are large and green, spreading out like a fan to catch the sunlight.One of the most distinctive features of the sunflower is its large, bright yellow flower. The petals are arranged in a circular pattern, facing towards the sun as it moves across the sky. This adaptation is what gives the sunflower its name it seems to follow the sun's path, always turning to face the light.Sunflowers are not only beautiful to look at but also play an important role in the ecosystem. They attract pollinators like bees and butterflies, helping to transfer pollen from one flower to another for the process of reproduction.In addition, sunflowers are often grown for their seeds. These seeds are a delicious and nutritious snack, and can also be used in various cooking and baking recipes.Overall, the sunflower is a captivating plant that brings joy and significance to our world. Its beauty, adaptability, and practical uses make it a beloved and fascinating part of nature.。
植物课教案模板英语版范文
Subject: Science (Botany)Grade Level: 3rd GradeDuration: 45 minutesMaterials:- Projector and computer with presentation slides- A variety of plants (real or artificial)- Magnifying glasses- Plant seeds or bulbs for planting- Journals for students- Markers and paper- Safety goggles- Lab coats (optional)Objective:To introduce students to the basics of plant biology, focusing on plant structure, growth, and their importance in the environment.Preparation:1. Prepare a PowerPoint presentation with images and information about different types of plants.2. Arrange the classroom with a designated plant area where students can observe and interact with plants.3. Gather a variety of plants that are suitable for students to handle and learn from.4. Prepare a small planting area with soil and seeds or bulbs for the students to plant.Introduction (5 minutes):- Begin the lesson by asking students what they know about plants.- Show a brief PowerPoint presentation to capture their attention and introduce the topic.- Discuss the importance of plants in the ecosystem and how they contribute to our lives.Interactive Exploration (15 minutes):- In small groups, distribute magnifying glasses and have students explore different plant parts.- Assign each group a specific plant to study and have them identify leaves, stems, roots, and flowers.- Encourage students to observe and record their findings in their journals.Hands-on Activity (15 minutes):- Guide students in planting seeds or bulbs in small pots.- Explain the importance of water, sunlight, and soil in plant growth.- Have students predict what will happen to their plants and record their observations.Group Discussion (10 minutes):- Bring the class back together and discuss the students' findings from the exploration and planting activity.- Ask questions to stimulate critical thinking, such as: "Why do plants need sunlight?" or "How do roots help plants?"- Encourage students to share their predictions about their planted plants.Conclusion (5 minutes):- Summarize the key points of the lesson, emphasizing the importance of plants.- Ask students to share what they have learned and how they can help plants grow at home.- Assign a homework task where students are to draw and label the parts of a plant they have observed.Assessment:- Observe student participation during the interactive exploration and hands-on activity.- Review the students' journals to assess their understanding of plant parts and growth.- Evaluate the students' predictions about the planted plants and their level of engagement in the lesson.Homework Assignment:- Students are to draw and label the parts of a plant they have observed during the lesson.- Encourage them to include a brief description of how each part helps the plant grow.Additional Notes:- Ensure that all students are aware of the safety procedures when handling plants and using gardening tools.- Consider incorporating a storytelling activity where students create a story about a plant that they have learned about.- Encourage students to take home a plant or a seedling to care for, which can serve as a living example of their learning.---This template can be adapted to fit different learning environments and student needs, ensuring that the lesson is both informative and engaging for third graders.。
介绍植物的英文作文带题目
介绍植物的英文作文带题目英文:Title: The Amazing World of Plants。
Plants are an essential part of our ecosystem, providing us with food, oxygen, and even medicine. They come in all shapes and sizes, from towering trees to tiny flowers, and they can be found in almost every corner of the earth. I have always been fascinated by the diversity and beauty of plants, and I would like to share some of my favorite examples with you.One of the most remarkable plants I have encountered is the Venus flytrap. This carnivorous plant has leaves that snap shut when triggered by unsuspecting insects, trapping them inside and digesting them for nutrients. It's like a natural insect trap! I find it absolutely fascinating how plants have evolved to adapt to their environments in such unique ways.Another plant that never fails to amaze me is the giant sequoia tree. These towering giants can reach heights of over 300 feet and have been known to live for thousands of years. Standing in the presence of these ancient trees, I can't help but feel a sense of awe and reverence for the natural world.Of course, plants also play a crucial role in our everyday lives. From the fruits and vegetables we eat to the wood and paper we use, we rely on plants for so many things. I often find myself marveling at the incredible variety of fruits and vegetables available at the farmer's market, from the vibrant colors of bell peppers to the sweet aroma of ripe strawberries.In addition to their practical uses, plants also have a profound impact on our emotional well-being. There's nothing quite like taking a leisurely stroll through a blooming garden, surrounded by the sights and scents of nature. It's a great way to unwind and de-stress after a long day, and I always feel refreshed and rejuvenated afterspending time in nature.中文:标题,植物的奇妙世界。
校园植物研究英语学科作文
校园植物研究英语学科作文英文:As a student majoring in botany, I have always been fascinated by the diverse plant life on campus. The campus is like a microcosm of the natural world, with a wide variety of plant species that provide not only a beautiful environment, but also a rich resource for botanical research.One of the most common plants on campus is the maple tree. Its vibrant red and orange leaves in the fall season always bring a sense of warmth and comfort to the campus. I remember one time when I was walking to class and I saw a group of students sitting under a maple tree, studying and chatting. It was such a peaceful and picturesque scene, and it made me appreciate the beauty and significance of campus plants even more.Another interesting plant on campus is the succulentgarden near the science building. It's a collection of various succulent plants from different parts of the world, and it's a popular spot for students to take photos andrelax between classes. I often see students admiring the unique shapes and colors of the succulents, and it's a reminder of the incredible diversity of plant life.In my botany classes, we often conduct experiments and research projects using campus plants. For example, we recently studied the effects of different fertilizers onthe growth of sunflowers in the campus garden. It was a hands-on experience that allowed us to apply our botanical knowledge in a practical setting. Through these experiments, I've gained a deeper understanding of the intricate relationships between plants and their environment.Overall, studying campus plants has not only enrichedmy academic knowledge, but also deepened my appreciationfor the natural world. I believe that by understanding and preserving campus plant life, we can contribute to a more sustainable and harmonious environment for future generations.中文:作为一名植物学专业的学生,我一直对校园里多样化的植物生活充满着兴趣。
实验室植物作文英语
实验室植物作文英语英文:In the laboratory, we have a variety of plants that we use for different experiments and research. These plants are carefully nurtured and monitored to ensure their health and growth. One of the most interesting plants we have is the Venus flytrap. This unique plant is a carnivorous plant that catches and digests insects and small animals.We have been studying the Venus flytrap to understand its mechanism of trapping and digesting prey. It's fascinating to observe how the plant's leaves snap shut when triggered by the movement of an insect. It's like a natural trap that the plant uses to capture its food. We have also been experimenting with different stimuli to see how the plant responds, such as using a small piece of meat or even a drop of blood to see if it triggers the plant's trapping mechanism.Another plant we have in the lab is the Arabidopsis thaliana, a small flowering plant that is widely used as a model organism in plant biology. We use this plant to study various aspects of plant growth, development, and response to environmental changes. It's a versatile plant that provides valuable insights into the genetic and molecular mechanisms underlying plant processes.In addition to these plants, we also have a collection of different herbs and vegetables that we use for studying the effects of different nutrients and growing conditions on plant growth. For example, we have been growing basil and mint to see how they respond to different levels of sunlight and water. It's interesting to see how these plants adapt and thrive under different conditions.Overall, the laboratory plants provide us with a wealth of opportunities for learning and discovery. They allow us to explore the fascinating world of plant biology and gain insights into the intricate mechanisms that govern plant life.中文:在实验室里,我们有各种不同的植物,用于不同的实验和研究。
英文植物科普
英文植物科普**English Title: A Brief Introduction to Botany**Plants are essential components of our ecosystem, playing a pivotal role in maintaining the balance of our planet.Botany, the scientific study of plants, has unravelled numerous mysteries about these green organisms.This article aims to provide a simple introduction to the fascinating world of plants.**Classification of Plants**Plants are categorized into various groups based on their characteristics.The main types of plants include:1.**Mosses and Ferns**: These are non-flowering plants that reproduce through spores.They typically grow in moist environments and are known for their primitive features.2.**Gymnosperms**: This group includes plants like conifers, cycads, and ginkgoes.They produce seeds but do not have flowers.Gymnosperms are often found in cooler or arid regions and are known for their woodiness.3.**Angiosperms**: These are flowering plants that produce seeds enclosed within a fruit.Angiosperms are the most diverse group of plants and include everything from trees and shrubs to grasses and flowers.**Unique Plant Features**Plants exhibit a wide range of unique features that enable them to thrive in diverse environments:- **Photosynthesis**: Plants have the remarkable ability to convert sunlight, water, and carbon dioxide into food through the process of photosynthesis.This process is facilitated by the green pigment called chlorophyll.- **Vascular System**: Most plants have a vascular system consisting of xylem and phloem, which transports water, nutrients, and sugars throughout the plant.- **Reproduction**: Plants can reproduce both sexually and asexually.Sexual reproduction involves the fusion of male and female gametes, while asexual reproduction includes methods like runners, bulbs, and fragmentation.- **Adaptation**: Plants have evolved various adaptations to survive in different conditions, such as cacti storing water in their stems or epiphytes growing on other plants for sunlight and moisture.**Importance of Plants**Plants are indispensable for several reasons:- **Oxygen Production**: Through photosynthesis, plants produce oxygen, which is essential for the survival of all aerobic organisms, including humans.- **Food Source**: Plants provide the primary food source forhumans and many other animals.Crops like wheat, rice, and corn form the staple diet for a significant portion of the world"s population.- **Ecosystem Balance**: Plants play a crucial role in maintaining the balance of ecosystems by preventing soil erosion, regulating water cycles, and providing habitats for numerous organisms.- **Medicinal Value**: Many plants have medicinal properties and are used in the production of drugs and herbal remedies.In conclusion, the world of plants is diverse, fascinating, and vital to our existence.Botany allows us to appreciate and understand the intricate relationships between plants and their environment.---**中文标题:植物科普简介**植物是我们生态系统中的重要组成部分,对于维持地球的平衡起着关键作用。
神奇的植物作文英文
神奇的植物作文英文英文:Magical plants are a fascinating subject. They have been used for centuries for medicinal, culinary, and even spiritual purposes. Some plants are so amazing that they seem to have magical powers. One of my favorite magical plants is the Venus Flytrap.The Venus Flytrap is a carnivorous plant that catches insects with its modified leaves. It is native to the wetlands of North and South Carolina in the United States. The plant has a unique mechanism that allows it to sense when an insect has landed on its leaves. The leaves then snap shut, trapping the insect inside. The plant then secretes digestive enzymes that break down the insect and absorb its nutrients.Another magical plant that I find interesting is the Mandrake. In folklore, the Mandrake is said to have magicalpowers and is often associated with witchcraft. The plant has a long history of use in medicine and was believed to have the power to cure various ailments.There are many other magical plants out there, each with its unique properties and uses. Some plants are used for their hallucinogenic properties, while others are used for their ability to induce sleep or relaxation. Plants such as lavender and chamomile are known for their calming properties and are often used in aromatherapy.In conclusion, magical plants are a fascinating subject that has captivated humans for centuries. Whether used for medicinal, culinary, or spiritual purposes, these plants have a unique ability to captivate our imagination and inspire us.中文:神奇的植物是一个迷人的主题。
植物跨科杂交能成功案例
植物跨科杂交能成功案例下面为大家总结了几项植物跨科杂交能成功案例:1、甜菜沙拉(Three-Beet Salad)将不同种类的甜菜混合在一起的经典方法是……把它们加在沙拉中里。
1986年的一篇报道中,科学家们从基因方面报道了混合不同甜菜的方法。
他们先尝试两种物种杂交,结果是.vulgaris系甜菜和lomatogona系甜菜之间成功杂交。
他们使用这种杂交方式,使杂交甜菜与第三种携带procumbens染色体的甜菜交叉杂交。
结果产生三交甜菜,但这是一棵不育株。
在显微镜下,科学家们观察到杂交品种的染色体努力试图配对就如其细胞试图产生花粉一样。
尽管一些染色体能设法找到伙伴,但其他一些则不能。
如果没有这个配对,植物将无法完成减数分裂,而特殊的细胞分裂恰恰是产生生殖细胞的必要条件。
科学家们还研究了几种甜菜产生的蛋白质。
在杂交种中,这些蛋白质呈现出三个不同的状态,其中一种是继承自双亲的物种。
在甜菜的杂交种中,其中一些复合蛋白也是杂交形成的。
来自二个物或是三个物种的蛋白质相互镶嵌形成多种甜菜杂交。
2、烟草三重杂交烟草属是一个含多个种的大家庭。
20世纪30年代以来,科学家们利用不同种类的烟草培育出了数量惊人的三重杂交体。
例如,1960年为了培育出一个三重杂交体科学家们首先通过N. glutinosa和N. trigonophylla的杂交培育了一个二交种。
但令人遗憾的是,这两种烟草的杂交体是不育的。
因此,科学家们利用秋水仙素来破坏细胞有丝分裂,所得的细胞染色体加倍,从而解决了生育问题。
一旦科学家们得到一个可育杂合体,他们就能利用该杂合体与烟草交配。
这其中有两种交配方式,一是利用杂合体作为母体。
二是,利用普通烟草作为母体。
利用N. glutinosa–N. trigonophylla的杂合体为母体和利用普通烟草为母体培育而得的三重杂交体物种外观是不同的。
一种是根茎比较短的,叶子比较窄和花特别多,也有很多心皮。
而另一种则不会开花也没有心皮。
英语介绍植物作文
英语介绍植物作文Title: The Magic of PlantsPlants are a wondrous creation of nature, brimming with life and diversity. They are the silent guardians of our planet, providing us with oxygen, food, and medicine, while also beautifying our surroundings.The beauty of plants lies in their vast variety. From the towering redwoods that reach skyward, to the delicate orchids that bloom with intricate patterns, each plant species possesses its own unique charm. Their leaves, flowers, and fruits display a rainbow of colors, from the vibrant greens of leaves to the vibrant reds, oranges, and yellows of autumn foliage.Not only are plants visually appealing, but they also play a crucial role in our ecosystem. They are the primary producers in the food chain, converting sunlight into energy through photosynthesis. This process releases oxygen into the air, which is essential for the survival of all living beings. Additionally, plants provide habitats for a diverse range of animals, from insects to birds and mammals.Moreover, plants have been a source of inspiration and sustenance for humans throughout history. Many cultures have used plants for medicinal purposes, extracting their healing properties to treat various ailments. From traditional Chinese medicine to Ayurveda, plants have played a pivotal role in maintaining human health.In modern times, plants continue to play a vital role in our lives. They are the basis of our agricultural systems, providing us with the fruits, vegetables, and grains that are essential for our diets. Additionally, plants are increasingly being recognized for their environmental benefits, such as purifying the air and reducing noise pollution.In conclusion, plants are a treasure trove of life and beauty. They not only enrich our world visually but also contribute significantly to our survival and well-being. As we appreciate and care for plants, we are nurturing the very essence of life on Earth.。
英文神奇的植物作文
英文神奇的植物作文英文:Magical plants are those that possess extraordinary properties that are beyond the ordinary. They are unique and fascinating, and their benefits are endless. One such plant is the Aloe Vera plant. This plant has been used for centuries for its medicinal properties. It is known for its ability to heal burns, cuts, and other skin ailments. It is also used to treat digestive problems, such as constipation and irritable bowel syndrome.Another magical plant is the Venus Flytrap. This plant is carnivorous and is known for its ability to trap and digest insects. It is fascinating to watch this plant in action as it snaps shut on its prey. The Venus Flytrap is native to the wetlands of North and South Carolina and is a popular plant for collectors.The third magical plant is the Corpse Flower. Thisplant is native to the rainforests of Sumatra and is known for its foul odor. The Corpse Flower blooms once every few years and emits a smell that is similar to rotting flesh. Despite its unpleasant odor, it is a popular plant for collectors due to its rarity and unique appearance.In addition to these plants, there are many other magical plants that possess unique properties. Some areused for their medicinal properties, while others are used for their beauty or uniqueness. No matter what their purpose, these plants are a testament to the wonders of nature.中文:神奇的植物是那些拥有超乎寻常的特性的植物。
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Program: Plant Biology / BotanyIn October 2000, just one month after I was matriculated into XX, I made a decision which would have seemed extraordinarily ludicrous to almost everybody—switching from themuch-sought-after computer major to the biological science major. Others might describe my decision as preposterous for apparently understandable reasons—that to received specialized education in computer science and technology at that time (and even now) is regarded as a guarantee of lucrative a job and stable income, especially so when I had great potential for it as I entered XX with very outstanding performance during the highly competitive national university entrance examinations. Nevertheless, against the remonstrations on the part of my parents, friends and former middle school teachers, I persisted with my decision. For me, there was but one explanation underlying my change of mind—my profound love for the biological science.However, greater difficulties followed. Although, moved by my sincerity and determination, the dean of the College of Biological Science reluctantly agreed to accept my application, he posed to me two prerequisites. By the end of the first semester, I must first achieve the highest score in my grade at the School of Computer Science; and meanwhile, I must manage to be in the top 5% during my trial study in the College of Biological Science. Those were two harsh conditions, but I was not daunted. With double efforts re-doubled, I achieved top scholastic performance not only in terms of my computer subjects but also in terms of my biological subjects, completing in one semester the coursework usually for two semesters. Although those were the most challenging days in my life heretofore, with an average of 5 or 6 hours of sleep a day, I enjoyed making relentless efforts. By the time when my trial study came to an end, I felt that I have taken the most important step on the way to realize my aspirations.The College of Biological Science of XX is one of the most prestigious biological institutions in China, where y ou can find many of the best minds of the country’s youth in the field of biology. Naturally, the academic competition is fierce in this college. Still, although I was transferred to this college in the middle of the first academic year, I attained an academic performance which is characterized with gathering momentum. Throughout my undergraduate program so far, I have been ranked first in a total of 93 students in my grade and was admitted into our College’s National Experimental Class of Scientific Subjec ts. Diligence and perseverance can explain my high GPA, but the real underlying factor is my deep love for biology as a scientific discipline. Those factors are combined to enable me not only quickly digest and absorb what has been taught in class but also to immerse myself in extensive extracurricular readings of latest publications. As an undergraduate, I have won first-class scholarship, special-class scholarship, and the XX Scholarship from the United States. In addition, I received third prize at the national English contest for university students, and excellence awards for my Band-IV and Band-VI National College English Proficiency Tests, the latter being the most difficult standardized English proficiency test for Chinese college and university students in majors other than English language.The world of biology represents a totally different world from that of computer in that the former is vibrantly alive, rich and colorful. It is ever so fascinating to explore the wonders of various lifeprocesses. Among a rich variety of course selections, I have been most interested in plant biology, genetics, biochemistry, molecular biology, cell biology, plant physiology, and advanced microbiology. They have allowed me to gain insightful understandings of the foundation, development, differentiation and proliferation of life on the molecular and cellular levels. While informing me of important knowledge, those courses have also exposed me to many fields of which man is still ignorant, hence my intensified desire to probe into those unknown but exciting realms. I have also sought various extracurricular opportunities to enrich my knowledge and broaden my perspectives. I have participated in an exchange program with the students from the College of Biology of XX City University and attended the summer workshops and seminars on plant molecular biology held in XX University. Those activities have been as informative as they are rewarding.While laying a solid theoretical foundation, I have made conscious efforts to improve my hands-on abilities. Due to my distinguished academic performance and with strong recommendation from my advisor, I entered the XX Laboratory of Plant Physiology and Biochemistry based in our College to carry out my Undergraduate Research Program (URP). For more than one year, I have been performing experiments in my lab, acquiring useful experimental skills and improving my ability to analyze experiment results. For instance, in doing Northern experiment on molecular hybridization, I acquired the skill of RNA extraction, and developed a tentative mastery of the extraction and filtering of toxin, FPLC,electrophoresis, congenial grafting, hyperfiltration, lyophilization, and other techniques. In the tree transformation experiment, I practiced the process and the methods of the carrier configuration . Doing labwork has considerably enhanced my imagination and creativity, my active thinking, as well as analytical and problem-solving abilities.Having entered the last year of my undergraduate program, I am busy preparing my thesis—a study on the disease resistance of plants. Based on a wealth of technical literature I have gathered, I will study the interplay between pathogenic bacteria and plants, how the toxic proteins of the pathogenic bacteria combine with receptors in plants, and how some signal molecules in the lower signal system are activated to create a defense mechanism in plants. By researching on the disease resistance reactions of the type plant Arabidopsis Thaliana, we can gain insights into the plant’s disease resistance processes and mechanism. Part of my research findings can be applied to food crops and cash crops and my advisor Prof. XXX has expressed his full appreciation of my research proposal.In the forthcoming epoch, life science will achieve unprecedented headway. I feel fortunate for being part of the human efforts to decipher the mysteries of life. Toward this objective, I deem it necessary to receive more advanced academic training. This motivates me to apply for a Ph.D. program in Plant Biology/Botany from XX University, one of the Ivy League universities in the United States. Its College of Agricultural and Biological Sciences enjoys top ranking in its category, and its knowledgeable professors are doing some of the leading researches in the world. Your academic reputation and sophisticated research facilities are two main factors that motivate my application.In my proposed program at XX, I hope to deepen my study of advanced experimental techniques such as genetic chip technology,binary differential electrophoresis and other vital experimental skills that are currently absent in China. I also wish to keep abreast with the latest academic developments, and draw effective academic research concepts from my prospective advisor and teachers. Finally, I wish to produce important experimental and research findings to be part of my dissertation. I would like to focus on the study of the plant mechanisms on the molecular level by means of molecular biology and hopefully to apply my research results to the production improvement of farm crops and cash crops. Upon my graduation, I will come back to China to take up a teaching and research position in a major university or research institute.Life is beautiful and the process of exploring its mysteries is equally beautiful. My role model is Prof. Yuan Longping, a Chinese plant geneticist known as “Father of the Hybrid Rice” in the world. In him, I see how an individual can contribute to the welfare of the human society as a whole. His footsteps are what I must follow.。