Insects_and_Humans 昆虫和人类
“We’ve been here for 100 million years and we’ll be here long after you!”
6
•
•
Insect Agricultural Products: Silk
• Silk is produced by the caterpillar of the silkmoth, Bombyx mori, to form its coccon. Silk production began in China in3000 B.C.
•
• •
Insect Disease Vectors: Malaria
• Caused by different species of Plasmodium microorganisms and vectored by mosquitoes in the genus Anopheles. Causes high, recurring fever and sometimes death. Malaria kills an estimated 1 to 3 million deaths per year (mostly African children under 5) and causes 300-500 million cases of serious illness. Considered a major impediment to economic development in Africa. Control involves mosquito abatement and drug treatment.
•
Insects and Culture
• Insects in Religion & Myth
– Ancient Egypt: Dung beetle (Scarab) rolled the sun across the sky and carried the souls of the dead. – Maori - souls of the dead return as butterflies – Native American groups butterflies symbolize rebirth Hopi -Butterfly Kachina
•
Literature:
– Kafka’s Metamorphosis – Don Marquis’s Archy and Mehitabel
•
Theatre and Movies
5
Insects in the Movies
• Insect Horror Movies:
Them! The Fly Mothra The Swarm Tarantula The Black Scorpion The Incredible Shrinking Man The Exorcist II: The Heretic The Hellstrom Chronicle Arachnophobia
Insects and the Arts
• Insects have served as inspiration for all human art forms: Visual arts
– Andrew Wyeth’s Winter Bees
• •
Music:
– Rimsky-Korsakov’s Flight of the Bumblebee
Insects are high in Protein! Insects = 64% protein Fish = 32% Berries = 3%
2
Insects and Human Health
• • Blood-feeding insects serve as vectors for many human diseases. Some of these diseases have profoundly affected human history: Examples:
• •
•
1
Insects and Food: Pollinators
• • Most fruit and vegetable crops require insect pollination. Main pollination - honeybee (Apis mellifera) introduced from Europe. Annual value of honeybee pollination in United States: $1.8-18 billion. Alternate managed pollinators: bumblebees (greenhouse crops) alfalfa leafcutter bee in alfalfa.
Insects & Humans:
Where ever we go, there they are.
The intertwined lives of insects and people
• Insects and agriculture • Insects and human health • Insects and human culture
• • • Bubonic plague- The Black Death Human mortality rate of 30-75% Caused by the bacterium Yersinia pestis, vectored by the Oriental rat flea and reservoired in rats. Long present in Asia, the Crusades brought the disease to Europe in 1347. By 1352, 25 million people (1/3 the total population) were dead. Recurrent plague outbreaks continue to the present.
• •
•
Global Risk of Malaria in 2003 (WHO)
4
Insects for Medical Treatment
• Insects are important models for medical research, particularly in genetics and neurobiology. Example: Drosophila melanogaster Blowfly maggots - used to remove decaying flesh.
•
•
Ring a round the rosy A pocketful of posies Atishoo! Atishoo! We all fall down.
3
Insect Disease Vectors: Yellow Fever
• Yellow fever is a viral disease vectored by the Aedes aegypti mosquito. Symptoms - acute onset of high fever, aches, vomiting, jaundice. Death may occur within 3 days. Limited treatment options, but a vaccine is effective prevention. Still common in Africa and parts of Latin America. Played a major role in military campaigns and efforts to build the Panama Canal in 1905.
Insects and Agriculture: Competitors
• Pests (insects, weeds, fungi and vertebrates) cause the loss of about 1/3 of all agricultural products. Direct insect pests: feed on the harvested portion of crop. Indirect insect pests feed on other plant parts, reducing plant vigor and/or spreading disease. Stored product insect pests feed on harvested food products.
•
Movies with Insect Heroes:
Spiderman I & II Antz Bug’s Life Angels & Insects Joe’s Apartment
•
Movies with insects in supporting roles:
Mysterious Island Silence of the Lambs Days of Heaven Men in Black
•
Insects AS Food
• Many non-Western cultures regularly consume insects.
– – – – Ant eggs, pupae and adults Bees larvae and pupae Wasps - popular in Asia Lepidoptera larvae- the famous wichetty grub! – Grasshoppers- eaten by a – Termites
– Bubonic plague – Yellow fever
昆虫记中昆虫与人的相同之处的例子
昆虫记中昆虫与人的相同之处的例子英文回答:In "The Insect World," also known as "Insectopedia," the author, Hugh Raffles, explores the fascinating world of insects and their similarities to humans. Throughout the book, Raffles highlights various examples of how insects and humans share certain characteristics and behaviors. Here are a few examples:1. Social structures: Just like humans, many insects live in complex social structures. Ants, for instance, live in colonies with a division of labor, where individuals have specific roles and responsibilities. Similarly, humans also live in societies with hierarchies and specialized roles, such as doctors, teachers, and engineers.2. Communication: Insects, like bees, use intricate communication systems to convey information to their fellow colony members. They use dances, pheromones, and vibrationsto communicate about food sources, potential threats, and mating opportunities. Similarly, humans rely on various forms of communication such as spoken language, body language, and facial expressions to convey messages and emotions.3. Cooperation: Insects, such as termites, exhibit remarkable cooperation when building intricate structures like termite mounds. Each termite has a specific task, and they work together to create a complex and functional structure. Humans also rely on cooperation and teamwork to accomplish tasks and build complex structures, like skyscrapers or bridges.4. Survival instincts: Insects have evolved various survival strategies, just like humans. For example, some insects mimic the appearance of dangerous or toxic species to ward off predators. Humans also have survival instincts, such as fight or flight responses, that help us navigate dangerous situations.中文回答:在《昆虫记》中,作者休·拉弗尔斯(Hugh Raffles)探索了昆虫的世界以及它们与人类的相似之处。
定语从句的翻译
精选ppt课件
1
译成定语
The microorganism which causes disease is pathogenic.
引起疾病的微生物具有致病性。 The people who study ecosystem are called
ecologists. 那些从事生态系统研究的人被称作生态学家。
Air is a mixture of gases, of which oxygen forms 21% by volume.
空气是一种气体混合物,氧气占空气体积的 21%。
精选ppt课件
17
关系代词译成“它”、“它们”等。
All living things are made of very small cells, whose form can be seen with the aid of a microscope.
精选ppt课件
12
优柔寡断是他的主要缺点。 Indecision is his chief defect. Near-sightedness is a visual defect. 近视是一个视力缺陷。 内在的故障 an inherent defect
精选ppt课件
13
分译法
译成并列分句
重复关系代词所代的名词,有时还可以在名 词之前加指示代词“这”或“该”。
At present, hundreds of millions of tons of diverse substances which are a source of harm to the health of people, plant life, and useful microorganisms are discharged to the atmosphere.
讲述昆虫故事的英文作文
讲述昆虫故事的英文作文英文回答:In the verdant tapestry of nature, insects dance and buzz, performing their intricate roles in the delicate webof life. Their stories, often unnoticed by humans, are as diverse and fascinating as the insects themselves.One such tale unfolds in the lush undergrowth, where a humble caterpillar embarks on its astonishing metamorphosis. As it hangs suspended from a delicate silken thread, its body undergoes a remarkable transformation. Once a crawling creature, it emerges as a vibrant butterfly, its wings adorned with intricate patterns that flutter in the gentle breeze.In the canopy of a towering tree, a colony of antsworks tirelessly, their tiny bodies navigating the labyrinthine branches with unwavering determination. They laboriously gather food and construct their intricate nests,each individual contributing to the harmonious functioning of their collective society.Beneath the surface of a tranquil pond, a delicate damselfly hatches from its eggs. Its translucent wings shimmer as it flutters above the water, its graceful movements reminiscent of a miniature ballet. It spends its days darting among water lilies, its iridescent body reflecting the sunlight in a kaleidoscope of colors.As the sun begins to set, a symphony of cicadas fills the air with their rhythmic chorus. Their piercing calls, once a nuisance to humans, now become a soothing lullaby, signaling the approach of nightfall. Crickets join in the nocturnal serenade, their chirping creating a gentle backdrop to the fading light.In the darkness of night, fireflies illuminate the surroundings with their enchanting glow. Their intermittent flashes of light, like miniature stars, guide losttravelers through the shadowy forest. They communicate with each other through their ethereal luminescence, creating amesmerizing display that captivates all who behold it.中文回答:在自然界这幅苍翠的挂毯上,昆虫们翩翩起舞,嗡嗡作响,在生命的微妙织锦中扮演着复杂的角色。
2024年3AM4U1Insects教案
2024年3AM4U1Insects教案一、教学内容本节课选自2024年3AM4U1教材的第三章《Insects》,详细内容包括:介绍昆虫的主要特征、常见昆虫的类型、昆虫的生命周期、昆虫与人类的关系等。
二、教学目标1. 了解并掌握昆虫的主要特征,能正确区分昆虫和其他节肢动物。
2. 学会描述常见昆虫的类型及其生活习性,理解昆虫生命周期的基本知识。
3. 认识到昆虫在生态系统中的作用,了解昆虫与人类生活的关系。
三、教学难点与重点难点:昆虫生命周期的理解,昆虫与其他节肢动物的区分。
重点:昆虫的主要特征,常见昆虫的类型及其生活习性,昆虫在生态系统中的作用。
四、教具与学具准备1. 教具:昆虫标本,昆虫图片,教学PPT。
2. 学具:笔记本,彩色笔,放大镜。
五、教学过程1. 实践情景引入(5分钟)利用PPT展示各种昆虫图片,引导学生观察并说出它们的名字,激发学生对昆虫的兴趣。
2. 知识讲解(15分钟)(1)介绍昆虫的主要特征,如身体分为头、胸、腹三部分,三对足,一般有两对翅等。
(2)讲解常见昆虫的类型及其生活习性,如蝴蝶、蜜蜂、蜻蜓等。
(3)阐述昆虫的生命周期,如卵、幼虫、蛹、成虫等。
3. 例题讲解(10分钟)通过PPT展示例题,引导学生运用所学知识解答。
4. 随堂练习(10分钟)让学生完成教材上的练习题,巩固所学知识。
5. 小组讨论(10分钟)分组讨论昆虫在生态系统中的作用,以及昆虫与人类生活的关系。
六、板书设计1. Insects2. 主要内容:(1)昆虫的主要特征(2)常见昆虫类型及生活习性(3)昆虫生命周期(4)昆虫在生态系统中的作用七、作业设计1. 作业题目:(1)列举三种昆虫,并描述它们的生活习性。
(2)简述昆虫的生命周期。
(3)谈谈你对昆虫在生态系统中的作用的认识。
2. 答案:(1)示例:蝴蝶、蜻蜓、蜜蜂。
蝴蝶生活在花丛中,以花蜜为食;蜻蜓生活在水边,捕食蚊子等小昆虫;蜜蜂生活在蜂巢中,采集花蜜,制作蜂蜜。
昆虫的世界介绍英文作文
昆虫的世界介绍英文作文英文:In the world of insects, there are over one million different species. They are incredibly diverse in their appearance, behaviors, and habitats. Some insects are beneficial to humans, such as bees, which pollinate crops and produce honey. Others, like mosquitoes, can be harmful as they spread diseases like malaria.One interesting fact about insects is that they have three body parts: the head, thorax, and abdomen. They also have six legs and two pairs of wings (although not all insects can fly). Insects have a hard exoskeleton that protects their body and allows them to move quickly and efficiently.Insects are also known for their unique behaviors. For example, ants work together in colonies to gather food and care for their young. Butterflies go through ametamorphosis process, transforming from a caterpillar to a beautiful winged creature. And some insects, like the cicada, have a distinct mating call that can be heard from far away.Overall, the world of insects is fascinating and diverse, with so much to explore and learn.中文:在昆虫的世界里,有一百多万种不同的物种。
第4章3昆虫与人类的关系
❖ 昆虫(insect或entoma):3对足和2 对翅, 隶属于节肢动物门中的昆虫纲
(Insecta)是地球上最繁盛的动物类群.
❖ 昆虫在漫长的演化过程中,形成了许多独 特的适应特性,成为影响地球生态和人类 生活的重要因素。
第一节 昆虫纲的特征
❖ 一、昆虫纲的基本特征 ❖ (1)体躯由若干体节组成,并明显地集
❖ 据联合国粮农组织(FAO)报道,全世界5种重要 作物(稻、麦、棉、玉米、甘蔗)每年因虫害的损 失达2000亿美元;我国每年因害虫造成的损失至少 占农作物总产值的1/5以上;1992年我国棉铃虫大 暴发、造成棉花减产30%以上,直接经济损失达 100亿元。林、果、蔬、药等经济植物也无不受到 害虫的危害,一般损失15%~20%,有时还严重影 响出口创汇。经济植物产品在贮藏、加工期间也会 受到多种害虫侵害,如粮食在贮运过程中一般损失 5%~10%之间。
❖生物多样性(biodiversity)是指在 一定空间内生物的变异性,通常包 括遗传、物种和生态系统多样性3个 层次。
❖适应性是指生物通过各种行为对策 适应环境得以保存种群和繁衍后代 的能力。
❖一、昆虫纲繁盛的表现特点
❖ 总体而言,昆虫纲的繁盛主要表现在以下3个方面。
❖(1)种类最多。
❖ 昆虫纲是动物界中包括物种最多的一个类群,目前 已命名的昆虫约计有100万种,占地球所有动物种 数的2/3,约占全球生物多样性的一半。
的原因是什么? ❖ 昆虫的益与害分别表现在哪些方面?
❖(3)相对体小。
❖ 大部分昆虫的个体较小,只需少量的食物便可满足 其生长发育和繁殖对营养的需求,同时也便于其隐 藏。
❖(4)繁殖力强。
❖ 昆虫具有惊人的生殖能力,加之体小发育速度快, 因而两者构成了极高的繁殖率。大多数昆虫的产卵 量可达数百粒至数千粒,一年可完成数代,即使在 自然死亡90%的情况下,仍能保持一定的种群数量。
幼儿园中班英语《Insects昆虫》教案
幼儿园中班英语《Insects昆虫》教案一、教学内容本节课选自幼儿园中班英语教材第三章《有趣的生物》中的第三节《Insects昆虫》。
详细内容包括:学习昆虫的基本词汇,如bee (蜜蜂)、ant(蚂蚁)、butterfly(蝴蝶)、grasshopper(蚂蚱)等;掌握一般现在时态描述昆虫的特点和习性;了解昆虫的生活环境及其与人类的关系。
二、教学目标1. 能够正确发音并记忆昆虫的相关词汇。
2. 能够运用一般现在时态描述昆虫的特点和习性。
3. 培养幼儿对大自然生物的兴趣和热爱。
三、教学难点与重点教学难点:一般现在时态的运用和昆虫词汇的正确发音。
教学重点:掌握昆虫的基本词汇和一般现在时态描述昆虫的特点和习性。
四、教具与学具准备1. 教具:昆虫卡片、挂图、视频、音频设备。
2. 学具:幼儿英语活动手册、画笔、彩色纸。
五、教学过程1. 实践情景引入(5分钟)教师带领幼儿观察校园里的昆虫,引导幼儿发现并说出昆虫的名字。
2. 例题讲解(10分钟)教师展示昆虫卡片,教授昆虫词汇,如bee、ant、butterfly、grasshopper等,并引导幼儿用一般现在时态描述昆虫的特点和习性。
3. 随堂练习(10分钟)幼儿两人一组,用所学的昆虫词汇和一般现在时态进行对话练习。
4. 情景剧表演(15分钟)教师组织幼儿分组,每组选择一种昆虫,编一个小故事,并表演出来。
教师带领幼儿回顾本节课所学内容,巩固昆虫词汇和一般现在时态。
六、板书设计1. 板书昆虫词汇:bee、ant、butterfly、grasshopper等。
2. 板书一般现在时态句子:The bee flies around the flowers.(蜜蜂在花丛中飞舞。
)七、作业设计1. 作业题目:请用画笔和彩色纸制作一张昆虫卡片,并写上一句描述该昆虫特点的句子。
2. 答案示例:一张画有蝴蝶的卡片,句子为:The butterfly is beautiful.(蝴蝶很漂亮。
最新精选中班英语优质教案《Insects》
最新精选中班英语优质教案《Insects》一、教学内容本节课我们将学习教材《Insects》这一章节,具体内容包括介绍几种常见昆虫,如蝴蝶、蚂蚁、蜜蜂等,通过图片和实物形式,让学生们认识和解这些昆虫特征、生活习性以及与人类关系。
二、教学目标1. 让学生掌握昆虫基本词汇,如butterfly、ant、bee等;2. 使学生解昆虫特征和生活习性;3. 提高学生运用英语进行观察和描述能力;4. 培养学生对大自然好奇心和探索精神。
三、教学难点与重点1. 教学难点:昆虫特征和生活习性描述;2. 教学重点:昆虫词汇掌握和运用。
四、教具与学具准备1. 教具:昆虫图片、实物、PPT、板书用品;2. 学具:学生用书、练习本、彩色笔。
五、教学过程1. 实践情景引入:展示昆虫图片,让学生观察并猜测它们名字,激发学生兴趣;2. 例题讲解:通过PPT展示昆虫图片,教授对应英文单词,如butterfly、ant、bee等,并引导学生用英语描述它们外貌特征和生活习性;3. 随堂练习:让学生两人一组,用英语互相描述对方所看到昆虫;5. 知识拓展:介绍一些有趣昆虫知识,如蝴蝶变态发育、蚂蚁社群行为等;6. 课堂小结:对本节课所学内容进行回顾,巩固知识点。
六、板书设计1. 板书《Insects》2. 内容:butterfly:美丽蝴蝶,有翅膀,喜欢吸食花蜜;ant:勤劳蚂蚁,有六条腿,善于合作;bee:忙碌蜜蜂,有翅膀,会酿蜜。
七、作业设计1. 作业题目:(1)根据所给图片,用英语写出昆虫名字;(2)用英语描述一种你喜欢昆虫,并说明原因。
答案:1. (1)butterfly、ant、bee;(2)I like the butterfly. It's beautiful and likes to drink nectar from flowers.八、课后反思及拓展延伸1. 课后反思:本节课通过实践情景引入、例题讲解、随堂练习等多种教学手段,让学生们在轻松愉快氛围中掌握昆虫英文词汇和描述方法。
3AM4U1Insects教案
3AM4U1Insects教案一、教学内容本节课选自《新视野英语》教材第三册第四章第一单元“Insects”,主要内容包括:1. 教材章节:第三册第四章第一单元。
2. 详细内容:介绍昆虫的种类、特征、生活习性以及与人类的关系。
二、教学目标1. 了解并掌握昆虫的基本分类和特征。
2. 能够用英语描述昆虫的特点和生活习性。
3. 提高学生对生物多样性的认识,增强环保意识。
三、教学难点与重点1. 教学难点:昆虫的分类和特征。
2. 教学重点:用英语描述昆虫的特点和生活习性。
四、教具与学具准备1. 教具:PPT、昆虫标本、图片、视频等。
2. 学具:笔记本、笔、词典等。
五、教学过程1. 导入:通过展示昆虫标本和图片,激发学生对昆虫的兴趣,引出本节课的主题。
2. 新课内容呈现:结合PPT,讲解昆虫的分类、特征、生活习性等。
3. 实践情景引入:邀请学生扮演昆虫,用英语介绍自己的特点和生活习性。
4. 例题讲解:讲解如何用英语描述昆虫的特点,并提供例句。
5. 随堂练习:让学生运用所学知识,用英语描述昆虫的特点。
六、板书设计1. Insects2. 内容:Classification of insectsCharacteristics of insectsRelationships between insects and humans七、作业设计1. 作业题目:用英语写一篇关于你最喜欢的昆虫的短文,包括其特点、生活习性和与人类的关系。
2. 答案示例:八、课后反思及拓展延伸2. 拓展延伸:鼓励学生课后观察身边的昆虫,了解其生活习性,提高观察力和环保意识。
同时,推荐相关书籍和网站,拓展学生的知识面。
重点和难点解析:1. 教学内容的实践情景引入2. 教学过程的例题讲解和随堂练习3. 板书设计的内容布局4. 作业设计的内容与答案示例5. 课后反思及拓展延伸的针对性一、实践情景引入1. 选择具有代表性的昆虫标本和图片,突出昆虫的多样性。
昆虫有益性和有害性的探讨论文
《资源昆虫产业》课程论文(2011-2012学年秋季学期)论文题目:昆虫有益性和有害性的探讨任课教师:班级:学号:姓名:昆虫有益性和有害性的探讨摘要:任何事物都有其两面性,昆虫当然也不例外。
全世界已知动物已超过150万种,其中昆虫就有100万种以上(即占2/3)。
昆虫不但种类多,而且同种的个体数量也十分惊人。
一方面昆虫与人类争夺生存空间和自然资源,另一方面昆虫也为人类提供了资源,人的益害观是从对人的经济利益的观点出发的,因此对于人类来说,昆虫既有他的有害性也同样有有益的方面,在此本文简单探讨一下昆虫的有益性和有害性。
Abstract:Everything has its two sides, and insects is certainly no exception. The world has known more than 1.5 million animals, of which there are one million kinds of insects above (representing 2 / 3). Not only are many kinds of insects, and the same number of individuals is also very impressive. The one hand, insects and human and natural resources competition for living space, on the other insects are also provided for human resources, who benefits from the concept of harm the economic interests of the people point of view, so for humans, insects, both he the harmful aspects also have useful, in this paper briefly explore the beneficial insects and harmful.关键词:昆虫有益性有害性资源论述一、昆虫简介昆虫是节肢动物门的一纲,身体分头、胸、腹三部,头部有触角、眼、口器等。
