雨中植物的英语作文

时间:2021-01-27 15:36:36 初二年级英语作文 我要投稿

2016关于雨中植物的英语作文

  导语:芦苇开花了,芦花飘飘,白白的,软软的,像一簇簇轻盈的羽毛,在风中摇曳。下面是小编为大家整理的,英语范文。希望对大家有所帮助,欢迎阅读,仅供参考,更多相关的知识,请关注CNFLA学习网!

2016关于雨中植物的英语作文

  植物的英语作文【篇一】

  The book says, "all living things will be breathing." I think: "people and animals breathe is possible, but how plants breath?" In order to confirm the book, I decided to do

  I chose six pieces from home "callas" the leaves of this plant. They are very strong, grow verdant. I divided them into two groups to do experiments.

  I was in the first set of above three leaf blade evenly coated with vaseline. Under a second set of three leaf blade evenly coated with vaseline.

  Two days later, I found that the first group and leaves no change, because in the leaves of plants, with many small holes through them, called pores. All kinds of plant leaves, under the skin stomatal more with less, general under the porosity of leaf epidermis more than on the skin. Plants absorb carbon dioxide from the air is through the stomata and oxygen. Use vaseline, after besmear is on blade is closed pores, made from the hole, through the air. Plants used in the manufacture of fuel energy (sunlight) mostly on the leaf, and petroleum jelly coating can not block the sun. In addition, the water from the roots by stem, nor affected by petroleum jelly, so foliar blade will not be affected by any coated with vaseline.

  The second group of leaf blight. Because the blade is applied with vaseline, on the underside of the leaves, plant growth and most of the porosity and average sunlight is less than the back, neither from pores into the air, but not from stomatal out, so the blade will soon wither.

  By doing this experiment, I know that the plant is mainly with the blade on the back of the breath, cannot breathe in the blade is applied in plants. I know how should protect plants.

  书上说:“凡是有生命力的东西都要呼吸。”我想:“人和动物呼吸是有可能的,可植物怎样呼吸呢?”为了证实书上的话,我决定做

  我从家里选择了六片“马蹄莲”这种植物的叶子。它们都是十分健壮,长得绿茵茵的。我把它们分成两组来做实验。

  我在第一组的三片叶子的叶片上面均匀地涂上了凡士林。在第二组的三片叶子的叶片下面均匀地涂上了凡士林。

  两天后,我发现:第一组和叶片没有什么变化,因为在植物的叶片上,生有许多小孔,叫气孔。各种植物的叶片上、下表皮的气孔有多有少,一般叶片上的气孔下表皮比上表皮多。植物就是通过这些气孔吸收空气中的二氧化碳和氧气。用凡士林涂在叶片上后,气孔被封闭了,使空气不能从气孔通过。植物用于制造养料的能源(阳光)大都照在叶面上,而凡士林的涂层不能阻挡阳光。另外,水从根部通过茎部运输上来,也不受凡士林的影响,所以叶面涂有凡士林的叶片不会受任何影响。

  第二组的叶片出现枯萎现象。因为叶片背面涂有凡士林,植物的气孔又大多生长在叶片背面,阳光一般照不到叶片背面,空气既不能从气孔进入,又不能从气孔排出去,所以叶片会很快枯萎。

  通过做这个实验,我知道了植物主要是用叶片背面呼吸,不能在叶片背面涂一些妨碍植物呼吸的东西。我从中知道了应怎样保护植物。

  植物的英语作文【篇二】

  Just finished on the science of light and color that section, also know a lot of knowledge, listen to the teacher said that green plants the most don't adapt to the green light, is this true? I'm really curious, if really don't adapt to the green of light that will adapt to what kind of light?

  I find some seeds, such as seed germination, grow some green leaves, I took seven basin similar plants, respectively, in red, orange, yellow, green, blue, indigo, and purple seven kinds of colors of light, into the same amount of water every day.

  A few days later, I brought out the plants in different light, saw the worst of plants were grown in the green light, yellow and the weak, almost died, but I have found in blue and red light seedlings grow best, and big and strong, long is good.

  But why is this? I looked at lots of information, the original is because the lights will only make the same color of a kind of color of light penetration into the enclosure, and other assorted light is absorbed by the light, so a light bean sprouts are only a kind of color. This little experiment proved that the plant is the most like blue and red light, don't like green light; Because of the color of the opacities is determined by its reflection light, plant leaves green, show the reflection of the green plants, also means that the light of the green light is useless for plant growth. Only to plant according to green light, will be because of the lack of the other colours, slow growth or even wither.

  Looked at the information I immediately suddenly enlighted, originally is such!

  In the evening, I was watching news broadcast suddenly saw a farmer in plastic greenhouse cultivation of vegetables, use blue or red plastic film, oh, the original farmers uncle is to use this to greatly increase production.

  刚上完科学的《光与颜色》那一节,也知道了许许多多的知识,听老师说绿色植物最不适应绿色的光,难道这是真的吗?我真的很好奇,如果真的.不适应绿色的光那会适应怎样的光呢?

  我找来了一些一样的种子,等种子发芽了,长出了一些绿色的叶子,我找了7盆差不多的植物,分别放在红、橙、黄、绿、蓝、靛、紫7种颜色的灯光下,每天放入一样多的水。

  过了几天,我把放在不同光的植物拿出来,看见了在绿色光里的植物果然是长得最差,又黄又弱,都快死掉了,可我有发现在蓝色和红色灯光下的幼苗长得最好,又粗又壮,长的可好了。

  可这是为什么呢?我查阅了许许多多的资料,原来是因为一种颜色的灯光只能让同色的光透进罩内,其它各色的光都被灯光吸收了,所以一个灯光里的豆芽只能得到相应的一种色光。这个小小的实验证明了植物最喜欢蓝色和红色的光,不喜欢绿色光;因为不透明体的颜色是由它反射的色光决定的,植物的叶子呈绿色,说明植物反射的是绿光,也就说明绿光正是对植物生长无用的光。只给植物照绿光,植物就会因为缺少所需的其他色光而生长缓慢,甚至枯萎。

  看了这些资料我顿时恍然大悟,原来是这样啊!

  晚上的时候,我正在看新闻联播突然看见了农民伯伯用塑料大棚种植蔬菜时,使用蓝色或红色的塑料薄膜,哦,原来农民伯伯是用这个来大大增大产量的。

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