植物是生命的主要形态之一，包含了如树木、灌木、藤类、青草、蕨类、及绿藻、地衣等熟悉的生物。种子植物、苔藓植物、蕨类植物和拟蕨类等植物中，据估计现存大约有 350 000个物种。绿色植物大部分的能源是经由光合作用从太阳光中得到的，温度、湿度、光线是植物生存的基本需求。植物共有六大器官：根、茎、叶、花、果实、种子。植物具有光合作用的能力——借助光能及叶绿素，利用水、无机盐和二氧化碳进行光合作用，释放氧气，产生葡萄糖等有机物，供植物体利用。

在自然界中，凡是有生命的机体，均属于生物。生物应分为原核生物、病毒、真菌、动物、植物几个界，把行固着生活和自养的生物称为植物界，简称植物。

植物有明显的细胞壁和细胞核，其细胞壁由葡萄糖聚合物——纤维素构成。植物具有光合作用的能力——就是说它可以借助光能及动物体内所不具备的叶绿素，利用水、矿物质和二氧化碳生产食物。释放氧气后，剩下葡萄糖——含有丰富能量的物质，作为植物细胞的组成部分。亚里斯多德将生物按能否移动，区分成植物（通常是不移动的）和动物（时常会移动去获取食物）两种。在林奈系统里，则被分为了植物界和动物界两界。后来，人们渐渐了解过原本定义的植物界中包含了数个不相关的类群，并将真菌和数种藻类移至新的界去。然而，对于植物仍然有许多种看法，不论是在专业上的，还是在一般大众的眼中来看。而也确实，若试图要完美地将“植物”放至单一个分类里是会发生问题的，因为对于大多数的人而言，“植物”这一词对现今分类学和系统分类学所立基的种系发生学的概念之间的关连性并不是很清楚,繁殖方法主要有压条、分根、扦插、嫁接、根、叶、种子、孢子等。

植物共有六大器官：根、茎、叶、花、果实、种子。茎是植物体中轴部分。直立或匍匐于水中，茎上生有分枝，分枝顶端具有分生细胞，进行顶端生长。茎一般分化成短的节和长的节间两部分。茎具有输导营养物质和水分以及支持叶、花和果实在一定空间的作用。有的茎还具有光合作用、贮藏营养物质和繁殖的功能。叶是维管植物营养器官之一。功能为进行光合作用合成有机物，并有蒸腾作用提供根系从外界吸收水和矿质营养的动力。花是具有繁殖功能的变态短枝。果实主要是作为传播种子的媒介。种子具有繁殖和传播的作用，种子还有种种适于传播或抵抗不良条件的结构，为植物的种族延续创造了良好的条件。

根是植物的营养器官，通常位于地表下面，负责吸收土壤里面的水分及溶解其中的离子，并且具有支持、贮存合成有机物质的作用。根由薄壁组织、维管组织、保护组织、机械组织和分生组织细胞组成。

茎是植物的营养器官之一。是大多数植物可见的主干。当然，例如仙人掌的变态茎。茎下接根，通过木质部将根部吸收到的水分和矿物质往上运输到各营养器官，通过韧皮部将光合作用的产物往下运输。茎来源于植物胚胎的胚芽。胚轴组成部分的茎，准确地说是子叶下的部分。

叶是高等植物的营养器官，侧边发育自植物的茎的叶原基。叶内含有叶绿素，是植物进行光合作用的主要场所。同时，植物的蒸散作用是通过叶的气孔实现的。

花生于花托上，最外面是花瓣，中间包裹着植物的生殖器官，雄蕊及雌蕊。花鲜艳的颜色及诱人的香气，都是为了吸引昆虫前来。在昆虫的帮助下，完成受粉的过程，达到传宗接代的目的。多数草类及树木的花朵颜色暗淡，没有香气，不能吸引昆虫前来授粉，这种植物一般靠风力完成授粉过程。根据植物的不同，多数植物每年会开上百朵花，少数植物，如郁金香，一年只开一朵花。花期的长短也相差很大。

果实由花的雌蕊发育而来，多数植物的种子包裹在果实里面。草莓的“果实”由花托生长而来，是一个例外。一个果实内部的种子数量各不相同，有些只有一籽，有些则很多。果实成熟时，有些富含水分，有些则变干。含水的果实通常颜色鲜艳，可以吸引动物将其吃掉，而将种子带到远方，当种籽排出体外，就会生根发芽。有些豆科植物及其他类植物，在果实成熟后会爆裂开来，将种子射到附近，伺机发芽。有些果实重量很轻，当风吹过，会被风带到遥远的地方，完成他们传宗接代的任务。有些植物的果实，表面带有毛刺，可以沾到经过的动物身上，由动物带到远方。当从动物身上脱落时，种子就地生根发芽。

种子是种子植物的胚珠经受精后长成的结构，一般有种皮、胚和胚乳等组成。胚是种子中最主要的部分，萌发后长成新的个体。胚乳含有营养物质。

希望我能帮助你解疑释惑。

求一篇英语作文《我喜欢的一种植物》

Today, daddy leads me to buy the flower to the flower shop, I elected three to plant flowers: Fresh refined lily, warm moving carnation, what I most like is that posture myriad rose. In the flower shop rose has many kind of colors: The white like snow, the red elephant fire, yellow resembles the gold, flesh color like rosy cloud ......I have chosen a most lovable purple-red rose. Gets in the home, I insert them in have in the water jar, sits before the table the careful observation rose. Rose's stem very straight very straight, has the penstock to be so thick, on is also bringing several spinules. The bottle green leaf is the Chinese olive shape, also soft is also thin, the edge becomes the zigzag, the arteries is the forked arteries. It is an opening flower bud, the desire in bud puts it is similar to the charming charming young girl, the smiling face contains the spring, beautiful extremely. The second day early in the morning, I discovered the rose already split open the smiling face, a flowers small wine class, the flower petal slightly has become likely screw type splits open, but has not looked at the inside stamen and pistil. The rose seems beautiful and the rich charm, I draw close to it gently, inspired deeply! A light delicate fragrance greets the nostrils. The rose is the rose family plant, its ancestor is an everflowering rose, afterward was mixed with the wild rose, has become present's rose. Although the rose is bringing the thorn, but my equally I like tenderly and beautifully pleasant, fragrant four overflow rose. 翻译为今天，爸爸让我买花花店，我选三种花：清新雅致的莉莉，温暖的移动的康乃馨，我最喜欢的是姿态万千玫瑰。

在花店的玫瑰有许多种颜色：白如雪，红象火，黄的像金的，粉红的喜欢美丽的云……我选择了一个最可爱的深紫到红的玫瑰。

会在家里，我插入他们的水罐，坐在桌前仔细观察玫瑰。

玫瑰的干得很直很直，有缝隙，那么厚，是几spinules也带来。

这个瓶子绿色的叶子是中国橄榄形，也软也是薄、边缘变得锯齿，动脉是动脉分叉。

这是一个开放的花芽的渴望，在芽期把它与迷人的迷人的年轻女孩，笑脸包含了春天，美丽的极。

第二天一早，我发现玫瑰已绽开了笑脸，一个花小酒杯、花瓣略有有可能成为螺杆式分割开，可是没有看着里面stamen和雌蕊。

玫瑰看起来漂亮和富有魅力，我轻轻贴近，深深地吸气！一个光迎鼻孔清香。

玫瑰是蔷薇科植物，其祖先是一个everflowering玫瑰，后来都掺杂着野玫瑰，已经成为现在的玫瑰。

虽然带着刺的玫瑰，但我同样我喜欢温柔而美丽宜人，芳香四溢的溢出玫瑰。

以如何种植物写一篇英语作文

《How to plant flowers》Do you know how to plant a flower? Let me tell you. First, put the flower seeds into the soil. Next, put it in the sun. And add water often. Then, make sure it gets lots of sun. wait for a sprout. At last, wait for a flower to grow. It's very easy, isn't it? Let us plant more and more flowers. Let us make the world more beautiful.译文：《如何种花》你知道怎么种花吗？让我告诉你。

首先，将花种子埋到沙土里。

接下来，将花盆搬到阳光底下。

要记得经常浇水。

然后，确保它有足够的光照。

耐心等它发芽。

最后，等这花慢慢长起来。

这很容易，不是吗？让我们种更多花吧。

让世界变得漂亮一些。

植物生长英语作文

I like flowers very much, we must first have a flower pot, and some seeds. First, put the seeds into the soil, and then regular watering it, fertilizing, put it in the sun, let it grow. And for it to catch worm. Then you have to do is to wait, after some days, you will see the blooming flowers.请问要翻译吗？

80左右关于植物重要性的英语作文

It is konwn to all that plants are of great importnce to our lives .Humanbeings can't live without plants .First,most of them can absorb CO2 from the air and turn it into O2.It makes our air clean and environment better .Second ,plants can bring happiness to us .Take flowers for example ,they not only make us feel relaxed but give us a sense of beauty .Third , they offer us food and provide us with the resources that we need .In conclusion ,plants are our friends ,they do good to humans,all of us should take care of them

用英语写一篇关于奇特植物的作文

Plants are important for us people. Do you know how to make plants grow better?First, plants need sunlight to grow. So you'd better put them in the sunlight. Second, plants need water to grow. So it's better for you to water them every day. If you take good care of your plants, they can grow better and better. They can clean the air around us.

一篇描写植物生长的过程的英语作文（50词左右）

Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air, water and sunlight. Animals and man cannot do so. Animals get their food by eating plants and other animals. Man gets his food by eating plants and animals, too. Therefore, animals and man need plants in order to live. If you look carefully at the plants around you, you will find that there are many types of plants. Some plants are large while others are small. Most plants are green. There are two main types of plants: flowering plants and nonflowering plants. Flowering plants have roots, leaves, flowers and fruits. Almost all the trees around us are flowering plants. You can probably recognize some plants from their flowers or their fruits. Nonflowering plants include coniferous trees,

【写一段我最喜欢的植物英文作文30词】作业帮

My Favorite PlantMy favorite plant is the Lucky Bamboo.I have loved it since Mom bought me one.It is always green and easy to plant.It also brings me more fresh air and makes my room look nicer.At first,I thought if I could give it enough water,it would grow quickly.However,a month later,I found the leaves were still the same size as when I got the plant.I asked my grandma why.She said that the Lucky Bamboo needs a lot of sunshine.I moved it to my table by the windows at once.Now it is growing bigger and stronger.

求一篇用英文写的植物离不开闪电的文章

Lightning helps provide our daily need of the element nitrogen. Nitrogen is the third most abundant element in the human body, and it must be renewed continually.We are actually surrounded by nitrogen, since it comprises 78 percent of the earth's atmosphere. However, we cannot use the nitrogen in this molecular, gaseous form; nitrogen gas has a strong covalent bond that our bodies cannot break down. Instead, nitrogen must first be taken up by plants as part of the food chain.There are two major ways in which nitrogen becomes part of vegetation. First, certain plants are able to absorb or ＂fix＂ nitrogen through their root systems. These plants are called legumes and include clover and peas. Legumes are distinguished by nitrogen-fixing bacteria that live inside their root nodules. These bacteria change the N2 form of atmospheric nitrogen into nitrate, NO3 : N2 + 3O2 ---> 2NO3In the nitrate, form the legumes, as well as other plants, can utilize the needed nitrogen.Through a diet that includes either these plants directly or the products from grazing animals we make the nitrogen available to our bodies.The second major way by which nitrogen is transformed into a usable form is by lightning. The great electrical energy of lightning is easily able to convert N2 to NO3.

跪求一篇描写植物的英语作文100字随便什么植物..花也行..快.英文的...

仙人掌A cactus (plural:cacti or cactuses) is any member of the spine plant family Cactaceae,native to the Americas.They are often used as ornamental plants,but some are also crop plants.Cacti are part of the plant order Caryophyllales,which also includes members like beets,baby's breath,spinach,amaranth,tumbleweeds,carnations,rhubarb,buckwheat,plumbago,bougainvillea,chickweed and knotgrass.Cacti are distinctive and unusual plants,which are adapted to extremely arid and hot environments,showing a wide range of anatomical and physiological features which conserve water.Their stems have expanded into green succulent structures containing the chlorophyll necessary for life and growth,while the leaves have become the spines for which cacti are well known.Cacti come in a wide range of shapes and sizes.The tallest is Pachycereus pringlei,with a maximum recorded height of 19.2 m,and the smallest is Blossfeldia liliputiana,only about 1 cm diameter at maturity.Cactus flowers are large,and like the spines and branches arise from areoles.Many cactus species are night blooming,as they are pollinated by nocturnal insects or small animals,principally moths and bats.Cacti range in size from small and globular to tall and columnar.

转载请注明出处作文大全网 » 描写植物的英语小作文