关于昆虫的论文1000字高中英语版

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研究昆虫控制的文章Athenix and Monsanto Announce Collaboration on Research for Insect ControlRESEARCH TRIANGLE PARK， NC and ST LOUIS， June 20 /PRNewswire-FirstCall/ -- Athenix C and Monsanto Company today announced they have entered into a three-year research collaboration for insect control on a key class of insects that affects a number of Monsanto's major crops of Financial terms of the agreement were not "We are pleased to work with the market leader in crop genetics to bring our technical capabilities to commercialization，" said Mike Koziel， chief executive officer for A "Working with Monsanto to discover novel genes for controlling insect pests increases options for farmers and allows Athenix to demonstrate the power of its integrated discovery platforms for new biotech traits，" said Nick Duck， vice president of research at A Athenix will apply its expertise in microbial screening and genomics to facilitate gene discovery intended to help protect crops such as cotton， soybeans and corn against a common class of insects known as H Hemipteran insects include Lygus， a pest of cotton， and stinkbug， a pest of "This collaboration will work to offer an essential benefit to our farmer customers by providing insect protection in crops such as corn， cotton and soybeans against the piercing and sucking Insect tolerant crops allow growers to spray less pesticide， making their operations more efficient and at the same time stewarding the environment，" said Robert T Fraley， PD， Monsanto executive vice president and chief technology "We're excited to collaborate with Athenix to help broaden grower's options for insect " About Athenix: Athenix is a leading biotechnology company that develops novel products and technologies for agricultural and industrial applications， including biofuels and Athenix has established an outstanding intellectual property portfolio and market access ability around enhanced plants， microbes， genes， enzymes， and processes with emphasis on two major markets: 1) novel agricultural traits for growers such as insect resistance， nematode resistance， herbicide tolerance， and their use for the crop production industry; and 2) the discovery of genes and proteins for use in the sustainable chemical industry with a focus on biofuels like ethanol and other natural Biological control of locusts New weapons for old enemiesDuring the 1988 desert locust plague， swarms crossed the Atlantic from Mauritania to the Caribbean， flying 5 000 kilometres in 10 Scientists were stumped because migrating swarms normally come down to rest every But locusts can’t swim， so how could it be? It turned out that the swarms were coming down at sea – on any ships they could find， but also in the water The first ones in all drowned but their corpses made rafts for the other ones to rest Since the dawn of agriculture more than 10 000 years ago mankind has had to deal with a resourceful and fearless enemy， Schistocerca gregaria， the desert Normally loners， every so often these natives of the deserts from West Africa to India turn into vast， voracious swarms that leave hunger and poverty behind them wherever they Throughout history， farmers and governments have made attempts to repel the bands and swarms of locusts by collecting insects， creating noise， making smoke and burying and burning the But all of this had little With swarms sometimes extending for hundreds of kilometres， and containing billions of individuals， they conquered by sheer force of Health concernsIt has long puzzled humans where these animals came from and where they Only in the mid-20th century was it realized that the light brown solitary desert-dwelling insect was the same species as the red and yellow locusts of the Only when its biology was understood and chemical pesticides and aerial spraying became available a few decades ago， could efforts be made to control the But large-scale pesticide use also raised real concerns for human health and the On the seventh-floor Emergency Centre for Locust Operations (ECLO) at FAO Headquarters in Rome， Keith Cressman， FAO's locust forecaster， checks current environmental conditions and locust population data from the three computer screens on his The last big locust upsurge ended early in 2005 and the current alert level is green or The experts at FAO’s ECLO are readying to fight the next round in the age-old battle against locusts – wherever and whenever that may “The next time，” says Cressman， “we’ll fight with new tools” New bio-control agents Recent advances in biological control research， coupled with improved surveillance and intelligence， could make a big difference when the next round in the battle is Such products could make it possible to sharply reduce the amount of chemical pesticides One promising avenue is research currently under way at the International Centre for Insect Physiology and Ecology (ICIPE) in N An ICIPE team headed by a Zanzibar-born chemical ecologist， Ahmed Hassanali， has identified and synthesized a specific locust pheromone， or chemical signal， that can be used against young locusts with devastating Phenylacetonitrile， or PAN for short， normally governs swarming behaviour in adult males who also use it to warn other males to leave them in peace while they But， Hassanali found it has startlingly different results on juvenile wingless locusts， known as Hopper bandsJust as adult locusts form swarms， hoppers will， given the right conditions， stop behaving as individuals and line up in marauding bands up to 5 kilometres They are only slightly less voracious than adults， who eat their own weight of food every In three separate field trials – the most recent in Sudan last year – Hassanali’s team showed that even minute doses of PAN could stop hopper bands dead in their tracks and make them break PAN caused the insects to resume solitary Confused and disoriented， some lost their appetite altogether， while others turned cannibal and ate one Any survivors were easy prey for What makes PAN particularly attractive is that the dose needed is only a fraction – typically less than 10 millilitres per hectare – of the quantities of chemical or biological This translates into substantially lower costs – 50 cents per hectare as opposed to US$12 for chemical pesticides and $15-20 for other bio-control That is clearly a major consideration in the countries in the front line – many of them among the world’s Green Muscle A different， but also highly effective biological approach is Green Muscle ®， a bio-pesticide developed by the International Institute for Tropical Agriculture’s biological control centre in Cotonou， Benin， and manufactured in South A Green Muscle ® contains spores of the naturally occurring fungus Metarhizium anisopliae acridum， which germinate on the skin of locusts and penetrate through their The fungus then destroys the locust's tissues from the This is definitely not good news for locusts， but the fungus has no effect on other life A product similar to Green Muscle ® is already successfully used in Australia， but the latter's introduction in Africa and Asia is being slowed by several These include a need for further large-scale trials， official approval of the product in several countries， and a relatively short shelf-life in its normal ready-to-spray liquid One drawback is that it takes days to kill the It is also relatively expensive and large-scale production would need to be A solution would be to store the product in powder form and dilute it just before Hassanali’s team has also shown that， if used in combination with a small amount of PAN， only a quarter of the normal dose of Green Muscle ® is Insect Growth RegulatorsAlso being readied for the modern locust fighter’s armoury is a class of products known as Insect Growth Regulators， or IGRs， which influence the ability of hoppers to moult and grow They have no direct toxic effects on IGRs are effective for several weeks after application and can be used in so-called barrier In this method only narrow swathes of the product are applied， perpendicular to the direction of the marching hopper Only 10 percent of the amount used in blanket treatment is After marching over one or two barriers the hoppers absorb enough product to die while As with PAN and Green Muscle ®， however， IGRs need to be aimed at locusts at an early stage in their lives， before they take to the That， in turn， requires an advanced level of surveillance and intelligence-gathering to make sure that any locust concentrations are nipped in the eLocust2Although back at ECLO Keith Cressman has satellites， computers and mathematical models at his disposal， the weak link in the chain has been the time it takes to get good information from the The mobile ground teams whose job it is to keep tabs on locust populations have to work in some of the world’s remotest， hottest and sometimes (for environmental and security reasons) most hostile A week or more might go by before a report from， say， the central Sahara， reached Cressman’s By that time the locusts – “They don’t need visas，” he says – would quite likely have moved to another country or continent This will soon change Field teams are now being issued with special hand-held devices to record vital locust and environmental data and relay them back to their own headquarters and on to Rome in real Developed by the French Space Agency CNES， the eLocust2 device is able to bounce the information off communications satellites and have the data arrive in the National Locust Control Centre in the affected country a few minutes later， from where they are passed on to Cressman for In case of unusually heavy hopper concentrations， immediate action can be taken to make sure that the locusts never grow old enough to Back to the fieldWriting in Science magazine， locust expert Martin Enserink gave the following graphic description of a locust population gone out of control:“On a beautiful November morning (in Morocco) it’s clear， even from afar， that something’s terribly wrong with the trees around this tiny They are covered with a pinkish-red gloss， as if their leaves were changing "As you get closer， the hue becomes a wriggling mass; a giant cap of insects on every tree， devouring the tiny Get closer still and you’ll hear a soft drizzle: the steady stream of locust droppings falling to the ” Such nightmare visions， and locust plagues with them， may one day be a thing of the

itors and veterans among the editors who have created their own little They have their own club that you can’t They’ll try to stretch the boundaries， to push through their own headlines d You’ll have to fight hard to hold your ”

Insects are a major group of arthropods and the most diverse group of animals on the Earth， with over a million described species more than half of all known living organisms with estimates of undescribed species as high as 30 million， thus potentially representing over 90% of the differing life forms on the Insects may be found in nearly all environments on the planet， although only a small number of species occur in the oceans， a habitat dominated by another arthropod group， the There are approximately 2，000 praying mantis， 5，000 dragonfly species， 20，000 grasshopper， 82，000 true bug， 120，000 fly， 110，000 bee， wasp and ant， 170，000 butterfly and moth， and 360，000 beetle species described to Estimates of the total number of current species， including those not yet known to science， range from two million to fifty million， with newer studies favouring a lower figure of about six to ten Adult modern insects range in size from a 139mm (00547 in) fairyfly (Dicopomorpha echmepterygis) to a 7centimetres (3in) long stick insect (phobaeticus chani) The heaviest documented insect was a Giant Weta of 70 g (5 oz)， but other possible candidates include the Goliath beetles Goliathus goliatus， Goliathus regius and Cerambycid beetles such as Titanus giganteus， though no one is certain which is truly the The study of insects (from Latin insectus， meaning "cut into sections") is called entomology， from the Greek， also meaning "cut into sections"

关于昆虫的论文1000字高中英语

The insect is a number of the nuture，they lives in the grassyland or the we should protect them because they are important for 译文：昆虫是大自然中的一员，它们生活在草地里或者树上我们应该保护它们因为它们对我们来说很重要Butterflies are a kind of beautiful They are very The color of them are red，pink，blueand so I like them because they are a part of the Thank you!Cockroaches are insects of the order Blattaria or Blattodea，of which about 30 species out of 4，500 total are associated with human About four species are well known as [1][2]Among the best-known pest species are the American cockroach，Periplaneta americana，which is about 30 millimetres (2 in) long，the German cockroach，Blattella germanica，about 15 millimetres (59 in) long，the Asian cockroach，Blattella asahinai，also about 15 millimetres (59 in) in length，and the Oriental cockroach，Blatta orientalis，about 25 millimetres (98 in)Tropical cockroaches are often much bigger，and extinct cockroach relatives and 'roachoids' such as the Carboniferous Archimylacris and the Permian Apthoroblattina were not as large as the biggest modern species

There are about 900，000 known insect species， three times as many as all other animal species together， and thousands of new ones are described each They are commonly grouped in 27 to 32 orders， depending upon the classification The largest order is that of the beetles (Coleoptera) Next， in order of size， are the moths and butterflies (Lepidoptera); the wasps， ants， and bees (Hymenoptera); and the flies and mosquitoes (Diptera) Other major orders are the true bugs (Hemiptera); the cicadas， aphids， and scale insects (Homoptera); the grasshoppers and crickets (Orthoptera); the cockroaches (Blattodea); and the mantids (Mantodea)

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《昆虫记》读后感这个寒假我读了《昆虫记》这本书，颇有心得。《昆虫记》是法国文学家法布尔的一部不朽的著作，他用了人生大部分时间来观察昆虫，更写出了十卷观察后的感言，世界怎能不为之轰动？《昆虫记》不仅是一篇文学巨作，还是一部昆虫科学百科呢！法布尔用他一生大量的时间观察千奇百怪的昆虫，收获非同小可，他利用智慧观察到了昆虫们的所有习性，并且不断思考，必要时总会将昆虫带到家里养，以便观察更方便。其实，这篇文章还赞颂了动物生命的宏伟——世界上无处不在的就是生命，往往一些微小的生命容易被忽略，人类虽然在生物链的顶端，可我们却不知道如果没有了这些微小的生命这个世界到底会有怎样的变化，这些小生命就是法布尔所赞美的——昆虫，他们是食物链中不可缺少的一环，它们对我们来说万般重要，它们的生命也应该得到尊重。整本书很多处都用了拟人句，形象生动地使这些动物变得更加可爱。整本书介绍了不同昆虫的不同习性和各自捕捉猎物的方法，勤劳的蜜蜂，愚笨的毛虫，漂亮的蛾，可怕的蜘蛛，它们可称得上是这本书的主人公。其中，我对《狼蛛》这一篇最感兴趣，每个动物都会有自己的“杀手锏”，狼蛛的“杀手锏”则是它的两颗毒牙，十分凶猛，可以立刻致它的猎物于死地。狼蛛的腹部长着黑色的绒毛和褐色的条纹，腿部有一圈圈灰色和白色的斑纹，长着四只可怕的眼睛，最喜欢住在长着百里香的干燥沙地上，每天都会吃新鲜的食物，它杀敌的方法就是扑在敌人身上，将毒牙刺入敌人致命的地方才能将它彻底杀死，成为自己丰盛的晚餐。看了《昆虫记》，我才发现昆虫的世界也是如此丰富多彩，在昆虫的身上其实也能看到人类的身影，尽管他们不会像人类一样用言语表达，但它们的每一个动作定有它的深刻含义。以前，我总是为了自己的快乐，频频杀伤小昆虫们，根本不顾它们的感受，看了这本书，我才后悔到了自己的错误，动物的生命同样也应当得到尊重，不应该做无谓的杀害，如果站在它们的角度上去考虑，它们是多么得痛苦，它们得多么憎恨我呀！今后，我一定不会如此做了，要保护它们，使它们不收到无谓的伤害。法布尔的坚持不懈使我很敬佩他，因为他不怕困难，不论是炎炎夏日，还是寒冷的冬天，他都要捉到活着的昆虫来观察，这一点是值得我们学习的地方，我一定要向法布尔那样，努力、坚持不懈，我们的成绩一定会更好的！

昆虫的营养价值：昆虫是人类向自然界摄取蛋白质的途径之一，据记载：从古时，在人民生活困难的时候，就主要使用昆虫。目前在世界贫穷的国家：如非洲，尼泊尔，埃塞俄比亚等均以昆虫和草根为生，昆虫已成为他们的重要摄取脂肪，蛋白质的途径。从营养价值来看，昆虫含有丰富的蛋白质，干虫体的含量高达百分之30～百分之70而且由20多种重要氨基酸组成，含有人体与动物无法合成的8种必需氨基酸和儿童必须的2种氨基酸，干的蝉含有百分之72，蚂蚁含百分之42，黄蜂含百分之81蟋蟀含百分之65，并且昆虫还含有丰富的脂肪，糖类，矿物质，维生素，水。其脂肪中百分之85为软脂肪和不饱和脂肪酸，所以易被人体所吸收。丰富的食用昆虫资源：由于昆虫数量多，繁殖多，可以在残酷的环境下生存，所以即使大量捕捉也很难造成生态破坏，并且很多国家的养虫业很发达。我国蚕业，蝗虫资源都很丰富，并且有些地方也有使用它们的习惯。我国曾多次向外国出口蝗虫，蚕蛹等～～～～国外也以开办：苍蝇工厂，蚯蚓工厂等，利用其产卵多，生命力强等特点向大众提供大量蛋白质。全世界约有3000种昆虫可以食用，我国约有800种。由于昆虫的食物转换率高，食用3kg植物蛋白可以换1kg昆虫蛋白，而牛需要8kg植物蛋白才可以换1kg动物蛋白，羊则10kg植物蛋白才可以换1kg动物蛋白所以因为昆虫繁殖快，数量多，生命力强等特点，昆虫业有很好的发展前景。使用昆虫的利用情况：在现实社会中，昆虫不仅还可以用作食物，还可以用做医药，许多药如：僵蚕，九香虫，蝉蜕，龙凤，冬虫夏草等既是可以治疗某些疾病，还可以对人生体进行滋补。在古代，昆虫就在人们的食谱上曾有过重要的地位，至今，很多国家还保留着这些习惯。墨西哥的外号叫“昆虫之乡”，有370多种昆虫可以作为佳肴，列入品牌的有60多种，所以墨西哥每年因这个原因吸引了世界很多游客。利用昆虫或其他产品为原料作为饮料：蜂蜜在很多人群众多很流行，老人小孩都很爱喝，在爱喝的同时还可以对胃和其他器官进行护理。我国在3000多年前就有养蜂的习惯，并且一直流传到现在，蜜蜂也是授粉昆虫，所以对农业也有很好的促进。我国不仅是养蜂，食用蜂蜜最多的国家，也是饲养蜂蜜最多的国家，大约拥有600多万箱蜂群。而且在国内外也有很多人提取蜂毒来治疗人体的风湿等疾病。所以，发展昆虫业是很好的一项事业。

《昆虫记》有感　　《昆虫记》是法国杰出昆虫学家，文学家法布尔的传世佳作，亦是一部不朽的世界名著。著名作家巴金说：“它熔作者毕生研究成果和人生感悟于一炉，以人性观察虫性，将昆虫世界化作供人类获得知识，趣味，美感和思想的美文。”　　作者把毕生从事昆虫研究的成果和经历用散文的形式记录下来，以人文精神统领在自然科学的庞杂实据，虫性，人性交融，使昆虫世界成为人类获得知识，趣味，美感和思想的文学形态，将区区小虫的话题书写成层次意味，全方位价值的巨制鸿篇，这样的作品在世界上诚属空前绝后。没有哪位昆虫家具备如此高明的文学表达才能，没有哪位作家具备如此博大精深的昆虫学造诣。若不是有位如此顽强的法布尔，我们的世界也就永远读不到一部《昆虫记》了。　　说我们幸运，还有更深的道理。法布尔之所以顽强，是因为他有着某种精神。如果他放弃了，丧失了自己那种精神，这世界同样不会出现一部《昆虫记》。　　《昆虫记》中对昆虫的细节描写更是令人不得不佩服法布尔超人的观察力，如蝉和蚂蚁乞讨粮食时的狼狈形相：“蚂蚁站在门槛上，身边摆放着大袋大袋的麦粒，正调过脸去背对前来乞讨的蝉。那蝉则伸着爪子，唔，对不起，是伸着手。头戴十八世纪宽大撑边女帽，胳膊下夹着吉他琴，裙摆被凛冽寒风吹得贴在腿肚子上，这就是蝉的形象。”这段乞讨的描写真是惟妙惟肖。　　更令人赞叹的是，法布尔对昆虫倒挂姿势的描写：如在金属笼子里，椎头螳螂的幼虫停在一个地方后姿势始终如一，毫不改变。它用四只后爪的爪尖钩住网子，后背朝下，纹丝不动，高高挂在笼顶，四个悬点承受着整个身体的重量。倒挂栖驻姿势是如此艰难，然而苍蝇的倒挂姿势却截然不同。苍蝇虽然也抓挂在天花板上，但是它总要抽出时间松弛一下，随便飞一飞，操起正常姿势走一走，肚皮贴地，肢体舒展开晒晒太阳。法布尔对昆虫的描写，真是细致入微，令人赞叹。试问一下，那个人没看到过苍蝇倒挂的姿势，但又有谁去注意它呢？但法布尔在《昆虫记》中对上千种昆虫进行了细致入微的描写，这也正是法布尔的成功之处。　　然而，法布尔的成功不是一蹴而就的，他的一生面临着两大难题：一是“偏见”，二是“贫穷”。法布尔勤奋刻苦，锐意进取，从农民后代变成一位中学教师：中学教书二十余年他兢兢业业，同时业余观察研究昆虫及植物，发表过出色的论文。尽管如此，他想“登上大学讲堂”的梦想始终没有实现，开辟独立的昆虫实验室的愿望始终得不到支持。教育，科学界权威们，骨子里看不起他的自学学历，看不贯他的研究方向。这种漠视与某些人的虚伪，庸俗，妒嫉心里合拍，长期构成对法布尔的偏见。法布尔生在穷苦人家，靠自己打工，读完了小学，中学;成年后只靠中学教师的工资，要后七口之家的生活，前半生一贫如洗，后半生勉强温饱。然而，发布而没有向“偏见”和“贫困”屈服。他依然勤于自修，扩充知识储蓄，坚持不懈地观察试验，不断获得新成果，一次又一次回击“偏见”。他挤出一枚枚钱，购买坛，罐，箱，笼，日复一日，月复一月，年复一年的极了研究资料，化教书匠之“贫困”为昆虫学之富有。　　他为了完成《昆虫记》几乎是牺牲了一切。他没有抓住一生中出现的许多机遇去巧取功利，过上幻想中的“好日子”却安于清苦，坐了一辈子冷板凳，甚至不惜把一家老小也捆在自己这张“板凳上”。　　法布尔曾经提出一个问题：“只为活命，吃苦是否值得？”为何吃苦的问题，他已经用自己的九十二个春秋做出了回答：迎着“偏见”，伴着“贫穷”，不怕“牺牲”，“冒犯”和“忘却”，这一切，就是为了那个“真”字。追求真理，探索真相，可谓“求真”。求真，这就是“法布尔的精神”。　　在这本《昆虫记》中，我们看到的不仅仅是昆虫的大千世界，更应该领略到的是法布尔“追求真理”“探索真理”的精神。