关于雨中植物的英语作文.doc

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 Thebooksays,alllivingthingswillbebreathing.Ithink:peopleandanimalsbreatheispossible,buthowplantsbreath?Inordertoconfirmthebook,Idecidedtodo Ichosesixpiecesfromhomecallastheleavesofthisplant.Theyareverystrong,growverdant.Idividedthemintotwogroupstodoexperiments. Iwasinthefirstsetofabovethreeleafbladeevenlycoatedwithvaseline.Underasecondsetofthreeleafbladeevenlycoatedwithvaseline. Twodayslater,Ifoundthatthefirstgroupandleavesnochange,becauseintheleavesofplants,withmanysmallholesthroughthem,calledpores.Allkindsofplantleaves,undertheskinstomatalmorewithless,generalundertheporosityofleafepidermismorethanontheskin.Plantsabsorbcarbondioxidefromtheairisthroughthestomataandoxygen.Usevaseline,afterbesmearisonbladeisclosedpores,madefromthehole,throughtheair.Plantsusedinthemanufactureoffuelenergy(sunlight)mostlyontheleaf,andpetroleumjellycoatingcannotblockthesun.Inaddition,thewaterfromtherootsbystem,noraffectedbypetroleumjelly,sofoliarbladewillnotbeaffectedbyanycoatedwithvaseline. Thesecondgroupofleafblight.Becausethebladeisappliedwithvaseline,ontheundersideoftheleaves,plantgrowthandmostoftheporosityandaveragesunlightislessthantheback,neitherfromporesintotheair,butnotfromstomatalout,sothebladewillsoonwither. Bydoingthisexperiment,Iknowthattheplantismainlywiththebladeonthebackofthebreath,cannotbreatheinthebladeisappliedinplants.Iknowhowshouldprotectplants. 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 Justfinishedonthescienceoflightandcolorthatsection,alsoknowalotofknowledge,listentotheteachersaidthatgreenplantsthemostdontadapttothegreenlight,isthistrue?Imreallycurious,ifreallydontadapttothegreenoflightthatwilladapttowhatkindoflight? Ifindsomeseeds,suchasseedgermination,growsomegreenleaves,Itooksevenbasinsimilarplants,respectively,inred,orange,yellow,green,blue,indigo,andpurplesevenkindsofcolorsoflight,intothesameamountofwatereveryday. Afewdayslater,Ibroughtouttheplantsindifferentlight,sawtheworstofplantsweregrowninthegreenlight,yellowandtheweak,almostdied,butIhavefoundinblueandredlightseedlingsgrowbest,andbigandstrong,longisgood. Butwhyisthis?Ilookedatlotsofinformation,theoriginalisbecausethelightswillonlymakethesamecolorofakindofcoloroflightpenetrationintotheenclosure,andotherassortedlightisabsorbedbythelight,soalightbeansproutsareonlyakindofcolor.Thislittleexperimentprovedthattheplantisthemostlikeblueandredlight,dontlikegreenlight;Becauseofthecoloroftheopacitiesisdeterminedbyitsreflectionlight,plantleavesgreen,showthereflectionofthegreenplants,alsomeansthatthelightofthegreenlightisuselessforplantgrowth.Onlytoplantaccordingtogreenlight,willbebecauseofthelackoftheothercolours,slowgrowthorevenwither. LookedattheinformationIimmediatelysuddenlyenlighted,originallyissuch Intheevening,Iwaswatchingnewsbroadcastsuddenlysawafarmerinplasticgreenhousecultivationofvegetables,useblueorredplasticfilm,oh,theoriginalfarmersuncleistousethistogreatlyincreaseproduction. 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?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