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Bees may be used to detect landmines موضوع: ?Did you know جمعه سی و یکم فروردین 1386 Bees may be used to detect landmines
Tiny radio plates the size of a rice grain will be attached to honey bees to detect antipersonnel landmines, of which there are about 100 million in 70 war-torn countries.
The tiny radio plates are engraved with serial numbers to keep track of the bees, which are being conditioned to develop a preference in addition to nectar, in this case TNT, or any other material that releases metamphenamine. Special spectrometers that can "smell" TNT are placed in movable beehives to indicate landmines in specific areas. Bees that "smell" of explosives can then be tracked to the landmine. The bees won't detonate the landmines. This is just one of many reasons why bees are important to us. Without bees, there will be no flowers or crops. Although birds, other insects and the wind also pollinate plants, bees do most of it. Busy bees Between 20 000 and 60 000 bees live in a single hive. The queen bee lays 1 500 eggs a day and lives for up to 2 years. The drone, whose only job it is to mate with the queen bee, has a lifespan of around 24 days - they have no stinger. Worker bees - all sterile females - usually work themselves to death within 40 days in summer, collecting pollen and nectar. Worker bees fly up to 14km (9 miles) to find pollen and nectar, flying at 24km/h (15 mph). Pollen is the main supply of protein and vitamins for bees, with the 10 amino acids they require. Nectar is up to 80% sugar but less than 0.2% in protein, so nectar is the carbohydrate supply for the hive. Bees place the nectar in honeycomb cells and then evaporate the water from the nectar by rapid wing movement. When the amount of water is less than 18%, the mixture is called honey and the bees cap off the cells. Thus honey is 80% sugars and 20% water. A mixture of honey and pollen is called "bee bread" and is the food for larvae and bees. A worker bee communicates her floral findings by performing a dance on the honeycomb. The orientation of her movements and the frequency of her vibrations indicate the direction and distance of the flowers. The sting The worker bees defend the hive. The muscular barbed stinger quickly saw into the skin of the invader and the venom pouch begins to contract rhythmically to pump venom into the intruder. But the bee species itself is under severe attack: in recent years thousands of colonies were destroyed by two parasitic mites, acarapis woodi and varroa jacobsoni. Scientist have not discovered a remedy yet, but have noticed a disturbing trend: the highest numbers of infested bees and the highest infestation rates were seen at high stress sites, ie. polluted areas. The challenge to individuals like us is to protect these amazing animals by making our gardens bee-friendly. The bee is a remarkable animal - flowers are pollinated mostly by bees. Bees do not have ears, but they have an excellent sense of smell with chemoreceptors in their antennae. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Landmine: a bomb hidden in the ground that explodes when someone walks or drives over it Plate: to be covered in sheets of a hard material such as metal war-torn :a war-torn country, city etc is being destroyed by war(war zone) engrave:to cut words, pictures or patterns into the surface of metal, stone, etc nectar :the sweet liquid that bees collect from flowers spectrometer: طیف سنج detonate: to explode or to make something explode set off pollinate: o give a flower or plant pollen so that it can produce seeds: hive: a structure where bees are kept for producing honey beehive: a small box where bees are kept, or the bees that live in this box drone :a male bee that does no work. stinger :the sharp needle-shaped part of an insect's or animal's body, with which it stings you [= sting British English] sterile :person or animal that is sterile cannot produce babies [= infertile; ≠ fertile] Pollen :a fine powder produced by flowers, which is carried by the wind or by insects to other flowers of the same type, making them produce seeds evaporate: if a liquid evaporates, or if heat evaporates it, it changes into a gas: barbed :a barbed hook or arrow has one or more sharp curved points on it. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Source: Did you know? نوشته شده توسط سعید | لينک ثابت |
نمونه سئوالات زبان انگلیسی دوره متوسطه موضوع: معرفی سایت ها پنجشنبه سی ام فروردین 1386 نمونه سئوالات زبان انگلیسی دوره متوسطه: نمونه سئوالات زبان انگلیسی سال اول دبیرستان نمونه سئوالات زبان انگلیسی سال دوم دبیرستان نمونه سئوالات زبان انگلیسی سال سوم دبیرستان نمونه سئوالات دوره پیش دانشگاهی منبع: انجمن زبان انگلیسی ناحیه 5 مشهد نوشته شده توسط سعید | لينک ثابت |
مجموعه لغات مربوط به جنگلداری Forestry afforest :verb [T] ا to plant trees on an area of land in order to make a forest afforestation :noun [U] the act of planting trees in order to make a forest [≠ deforestation] brushwood :noun [U] (ALSO brush) small branches that have broken off from trees and bushes canopy :noun [C] The tops of the trees in the rain forest are called the canopy. the branches and leaves that spread out at the top of a group of trees forming a type of roof In the tipping, he saw the headlights of a car pulling up under the canopy out front. carbon sink :noun [C] SPECIALIZED an area of forest which is large enough to absorb important and noticeable amounts of carbon dioxide from the Earth's atmosphere and therefore to reduce the effect of global warming clearing :noun [C] an area in a wood or forest from which trees and bushes have been removed A small deer stood on the edge of the clearing. ادامه مطلب نوشته شده توسط سعید | لينک ثابت |
داستان کوتاه موضوع: داستان کوتاه Short Story سه شنبه بیست و هشتم فروردین 1386 Inspirational Life story - The Gift of Life On the very first day, God created the cow. He said to the cow, "Today I have created you! As a cow, you must go to the field with the farmer all day long. You will work all day under the sun! I will give you a life span of 50 years." The cow objected, "What? This kind of a tough life you want me to live for 50 years? Let me have 20 years, and the 30 years I'll give back to you." So God agreed. On the second day, God created the dog. God said to the dog, "You are supposed to sit all day by the door of your house. Any people that come in, you will have to bark at them! I'll give a life span of 20 years." The dog objected, "What? All day long to sit by the door? No way! I give you back my other 10 years of life!" So God agreed. On the third day, God created the monkey. He said to the monkey, "Monkeys have to entertain people. You've got to make them laugh and do monkey tricks. I'll give you 20 years life span." The monkey objected. "What? Make them laugh? Do monkey faces and tricks? Ten years will do, and the other 10 years I'll give you back." So God agreed. On the fourth day, God created man and said to him, "Your job is to sleep, eat, and play. You will enjoy very much in your life. All you need to do is to enjoy and do nothing. This kind of life, I'll give you a 20 year life span." The man objected. "What? Such a good life! Eat, play, sleep, do nothing? Enjoy the best and you expect me to live only for 20 years? No way, man!....Why don't we make a deal? Since the cow gave you back 30 years, and the dog gave you back 10 years and the monkey gave you back 10 years, I will take them from you! That makes my life span 70 years, right?" So God agreed. AND THAT'S WHY.... In our first 20 years, we eat, sleep, play, enjoy the best and do nothing much. For the next 30 years, we work all day long, suffer and get to support the family. For the next 10 years, we entertain our grandchildren by making monkey faces and monkey tricks. And for the last 10 years, we stay at home, sit by the front door and bark at people! Source: Indianchild نوشته شده توسط سعید | لينک ثابت |
Becoming a better speaker موضوع: مقاله نویسی دوشنبه بیست و هفتم فروردین 1386 Becoming a better speaker Becoming a better speaker What speakers do In some ways speaking is the most difficult language skill. Every time you speak you have to do many different things but you have very little time to do them. Imagine, for example, that the teacher has asked you a question in class. Here is a list of the things you have to do when giving an answer. You have to: ادامه مطلب نوشته شده توسط سعید | لينک ثابت |
Becoming a better listener موضوع: مقاله نویسی یکشنبه بیست و ششم فروردین 1386 Becoming a better listener Becoming a better listener You spend more time in school listening than doing any other activity. It is important that you understand most of what you hear so that you can learn about your different subjects and at the same time improve your English. In order for you to become a better listener, look first at the following list. It contains many of the things that can make it hard for you to understand what you hear: ادامه مطلب نوشته شده توسط سعید | لينک ثابت |
داستان کوتاه انگلیسی موضوع: داستان کوتاه Short Story شنبه بیست و پنجم فروردین 1386 The butterfly & the cocoon A small crack appeared on a cocoon. A man sat for hours and watched carefully the struggle of the butterfly to get out of that small crack of cocoon. Then the butterfly stopped striving. It seemed that she was exhausted and couldn’t go on trying. The man decided to help the poor creature. He widened the crack by scissors. The butterfly came out of cocoon easily, but her body was tiny and her wings were wrinkled. The ma continued watching the butterfly. He expected to see her wings become expanded to protect her body. But it didn’t happen! As a matter of fact, the butterfly had to crawl on the ground for the rest of her life, for she could never fly. The kind man didn’t realize that God had arranged the limitation of cocoon and also the struggle for butterfly to get out of it, so that a certain fluid could be discharged from her body to enable her to fly afterward. Sometimes struggling is the only thing we need to do. If God had provided us with an easy to live without any difficulties then we become paralyzed, couldn’t become strong and could not fly. Don’t worry, fight with difficulties and be sure that you can prevail over them. شکاف کوچکی بر روی پیله کرم ابریشمی ظلاهر شد. مردی ساعت ها با دقت به تلاش پروانه برای خارج شدن از پیله نگاه کرد. پروانه دست از تلاش برداشت. به نظر می رسید خسته شده و نمی تواند به تلاش هایش ادامه دهد. او تصمیم گرفت به این مخلوق کوچک کمک کند. با استفاده از قیچی شکاف را پهن تر کرد. پروانه به راحتی از پیله خارج شد ، اما بدنش کوچک و بال هایش چروکیده بود.مرد به پروانه همچنان زل زده بود . انتظار داشت پروانه برای محافظت از بدنش بال هایش را باز کند. اما این طور نشد. در حقیقت پروانه مجبور بود باقی عمرش را روی زمین بخزد، و نمی توانست پرواز کند. مرد مهربان پی نبرد که خدا محدودیت را برای پیله و تلاش برای خروج را برای پروانه بوجود آورده. به این صورت که مایع خاصی از بدنش ترشح می شود که او را قادر به پرواز می کند. بعضی اوقات تلاش و کوشش تنها چیزی است که باید انجام دهیم. اگر خدا آسودگی بدون هیچگونه سختی را برای ما مهیا کرده بود در این صورت فلج می شدیم و نمی توانستیم نیرومند شویم و پرواز کنیم. نگران نباشید، با سختی ها بجنگید و مطمئن باشید که بر آنها پیروز خواهید شد. Source: Indianchild.com ترجمه: سعید ضروری نوشته شده توسط سعید | لينک ثابت |
مجموعه سوالات دوره متوسطه مجموعه سوالات زبان دوره متوسطه مجموعه سوالات زبان انگليسي - پيش دانشگاهي زبان انگليسي 1 و 2 پيش دانشگاهي منبع: آموزش زبان انگلیسی گناباد
نوشته شده توسط سعید | لينک ثابت |
داستان کوتاه انگلیسی موضوع: داستان کوتاه Short Story سه شنبه بیست و یکم فروردین 1386 The purpose of life A long time ago, there was an Emperor who told his horseman that if he could ride on his horse and cover as much land area as he likes, then the Emperor would give him the area of land he has covered. Sure enough, the horseman quickly jumped onto his horse and rode as fast as possible to cover as much land area as he could. He kept on riding and riding, whipping the horse to go as fast as possible. When he was hungry or tired, he did not stop because he wanted to cover as much area as possible. Came to a point when he had covered a substantial area and he was exhausted and was dying. Then he asked himself, "Why did I push myself so hard to cover so much land area? Now I am dying and I only need a very small area to bury myself." One day when we look back , we will realize that we don't really need that much, but then we cannot turn back time for what we have missed. Life is not about making money, acquiring power or recognition . Life is definitely not about work! Work is only necessary to keep us living so as to enjoy the beauty and pleasures of life. Life is a balance of Work and Play, Family and Personal time. You have to decide how you want to balance your Life. Define your priorities, realize what you are able to compromise but always let some of your decisions be based on your instincts. Happiness is the meaning and the purpose of Life, the whole aim of human existence. But happiness has a lot of meaning. Which king of definition would you choose? Which kind of happiness would satisfy your high-flyer soul?
سال ها پیش، حاکمی به یکی از سوارکارانش گفت: مقدار سرزمین هایی را که بتواند با اسبش طی کند را به او خواهد بخشید. همان طور که انتظار می رفت، اسب سوار به سرعت برای طی کردن هر چه بیشتر سرزمین ها سوار بر اسبش شد و با سرعت شروع کرد به تاختن. با شلاق زدن به اسبش با آخرین سرعت ممکن می تاخت و می تاخت. حتی وقتی گرسنه و خسته بود، متوقف نمی شد چون می خواست تا جایی که امکان داشت سرزمین های بیشتری را طی کند. وقتی مناطق قابل توجهی را طی کرده بود به نقطه ای رسید . خسته بود و داشت می مرد. از خودش پرسید: چرا خودم را مجبور کردم تا سخت تلاش کنم و این مقدرا زمین بدست بیاروم؟ در حالی که در حال مردن هستم و تنها به یک وجب خاک برای دفن کردنم نیاز دارم. داستان بالا شبیه سفر زندگی خودمان است. برای بدست آوردن ثروت، قدرت و شهرت سخت تلاش می کنیم و از سلامتی و زمانی که باید برای خانواده صرف کرد، غفلت می کنیم تا با زیبایی ها و سرگرمی های اطرافمان که دوست داریم مشغول باشیم. وقتی به گذشته نگاه می کنیم. متوجه خواهیم شد که هیچگاه به این مقدار احتیاج نداشتیم اما نمی توان آب رفته را به جوی بازگرداند. زندگی تنها پول در آوردن و قدرتمند شدن و بدست آوردن شهرت نیست. زندگی قطعا فقط کار نیست ، بلکه کار تنها برای امرار معاش است تا بتوان از زیبایی ها و لذت های زندگی بهره مند شد و استفاده کرد. زندگی تعادلی است بین کار و تفریح، خانواده و اوقات شخصی. بایستی تصمیم بگیری که چه طور زندگیت را متعادل کنی. اولویت هایت را تعریف کن و بدان که چه طور می توانی با دیگران به توافق برسی اما همیشه اجازه بده که بعضی از تصمیماتت بر اساس غریزه درونیت باشد. شادی معنا و هدف زندگی است. هدف اصلی وجود انسان. اما شادی معنا های متعددی دارد. چه نوع شادی را شما انتخاب می کنید؟ چه نوع شادی روح بلند پروازتان را ارضا خواهد کرد؟ Short Stories:منبع با کمی تغییر در متن اصلی ترجمه:سعید ضروری نوشته شده توسط سعید | لينک ثابت |
حقایق علمی موضوع: ?Did you know سه شنبه بیست و یکم فروردین 1386 Science facts Did you know that there are 206 bones in the adult human body and there are 300 in children (as they grow some of the bones fuse together). Fuse: to join together physically, or to make things join together, and become a single thing. The most dangerous animal in the world is the common housefly. Because of their habits of visiting animal waste, they transmit more diseases than any other animal. Snakes are true carnivorous because they eat nothing but other animals. They do not eat any type of plant material. Carnivorous: some one who eats meat.گوشتخوار The world's largest amphibian is the giant salamander. It can grow up to 5 ft. in length. amphibian :animals such as frogs that can live both on land and in water. دوزیست salamander: a small animal similar to a lizard, which lives on land and in the water سمندر The smallest bone in the human body is the stapes or stirrup bone located in the middle ear. It is approximately .11 inches (.28 cm) long. Stapes / Stirrup bone: استخوان رکابی The human eye blinks an average of 4,200,000 times a year. Blink: to shut and open your eyes quickly. چشمک زدن 100 years ago: The first virus was found in both plants and animals. 90 years ago: The Monument: a very old building or place that is important historically.اثر تاریخی 80 years ago: The food mixer and the domestic refrigerator were invented. domestic refrigerator: یخچال خانگی 70 years ago: The teletype and PVC (polyvinyl-chloride) were invented. Teletype: تلگراف 60 years ago: Otto Hahn discovered nuclear fission by splitting uranium, Teflon was invented. nuclear fission: شکافت هسته ای 50 years ago: Velcro was invented. 40 years ago: An all-female population of lizards was discovered in 30 years ago: The computer mouse was invented. 20 years ago: First test-tube baby born in Test-tube:لوله آزمایش 5 years ago: The first successful cloning of human embryo. embryo : an animal or human that has not yet been born, and has just begun to develop.جنین For the largest list of science facts, visit نوشته شده توسط سعید | لينک ثابت |
اصطلاحات سریال جواهری در قصر (قسمت 22) لغات، جملات و معادل های آورده شده در این پست مربوط به سریال جواهری در قصر است که از شبکه دو سیما پخش می شود.
جملات که انتخاب شده اند مربوط به قسمت 22 این سریال است . توصیه بانو یونگ به بانو هن!!! But if you think you're weak... even a small mound can seem like a big mountain But if you're strong, then even a storm just seems like a breeze I've been your shield up to now You have to become a big mountain You must become the storm وصیت بانو یونگ در مورد خاکسترش: So scatter me over the clouds I want to become rain... so I can flow here and there and travel all over the earth قسمت هایی از دیالوگ های قسمت 22: You should show your dignity at a time like this... dignity: calm, serious and controlled behaviour that makes people respect you They say rain has seeped into the food storage last night seep: (movement of liquid) to move or spread slowly out of a hole or through something So Lady Han's nasty temper is showing up again I should at least express my condolences condolences: sympathy and sadness for the family or close friends of a person who has recently died Your grace is immeasurable The court ladies are rebelling against the King's Mother's decision? دوستانی که تمایل دارند به زیر نویس کردن دی وی دی های سریال جواهری در قصر کمک کنند به این آدرس مراجعه کنند: جواهری در قصر نوشته شده توسط سعید | لينک ثابت |
دانلود مجانی کتاب موضوع: دانلود کتاب free E-Books چهارشنبه پانزدهم فروردین 1386
با کلیک بر روی لینک زیر کتابی الکترونیک با عنوان «چگونه انگلیسی یاد بگیریم» را دانلود کنید. با تشکر از زبان آموزان. نوشته شده توسط سعید | لينک ثابت |
Hill and mountains در آینده مجموعه لغات مربوط به محیط زیست که در خبر ها و متون علمی بیشترین فراوانی را دارند بر اساس لیست زیر در وبلاگ قرار خواهد گرفت. 1- Forestry 2- Inland Waters 4- Deserts and Prairies and Wildernesses 6- The Countryside 7- The air, Land and Wetland 8- Soil Hill and mountains brow :noun [S]نوک the top part of a hill or the edge of something high such as a cliff or rock: the brow of the hill: cliff : noun [C] صخره a high area of rock with a very steep side, often on a coast: Keep away from the edge of the cliff - you might fall. the cliff edge crag : noun [C]پرتگاه، تخته سنگ بلند a high rough mass of rock which sticks out from the land around it. Rough: not smooth elevation : noun FORMAL[C]بلندی ، تپه a hill: The flagpole stands on a small elevation in front of the building. escarpment :noun [C] پرتگاه يا شيب تندى که توسط عوامل طبيعى به وجود امده است a steep slope or cliff, such as one which marks the edge of a range of hills. foothill :noun [C usually plural]دامنه کوه a low mountain or low hill at the bottom of a larger mountain or range of mountains: the foothills of the ادامه مطلب نوشته شده توسط سعید | لينک ثابت |
Improving Teacher-Student Interaction in the EFL Classroom موضوع: مقاله نویسی دوشنبه سیزدهم فروردین 1386 Improving Teacher-Student Interaction in the EFL Classroom: An Action Research Report Jonathan Snell A common problem for EFL teachers is dealing with a passive class, where students are unresponsive and avoid interaction with the teacher. This is especially true when a teacher seeks interaction in a teacher-class dialog, such as asking questions to the class as a whole, expecting at least one student to respond. This can be a frustrating experience for both parties. Obviously, there will be times when no student can answer a teacher's question, but often students do not answer even if they understand the question, know the answer, and are able to produce the answer. Furthermore, students can often be very reluctant to give feedback or ask the teacher a question in front of the class. This action research project attempted to explore this problem and sought to create a more interactive teacher-class interchange in one class of Japanese adult English learners. ادامه مطلب نوشته شده توسط سعید | لينک ثابت |
Conversation Questions Conversation Questions A Part of Conversation Questions for the ESL Classroom.
ادامه مطلب نوشته شده توسط سعید | لينک ثابت |
زندگی نامه موضوع: زندگینامه Biography سه شنبه هفتم فروردین 1386 Warren Buffet, The Second Richest Man In World a.. There was a one hour interview on CNBC with Warren Buffet, the second richest man who has donated $31 billion to charity. Here are some very interesting aspects of his life: Source: English4Persians (click to join us) نوشته شده توسط سعید | لينک ثابت |
سئوال برای مکالمه...! Conversation Questions A Part of Conversation Questions for the ESL Classroom.
ادامه مطلب نوشته شده توسط سعید | لينک ثابت |
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