标签：pollen 相关文章
[ti:] [ar:] [al:] [by:] [00:00.43] Growing Good Corn 如何种好玉米 [00:06.55]There was a Nebraska farmer who grew award-winning corn. [00:12.13]Each year he entered his corn in the state fair where it won a blue ribbon. [00:18.25]One year a news
温馨夜读
10 Suffering from Allergies GLOSSARY to sneeze to uncontrollably push air and drops of liquid from ones nose andmouth, usually making a loud noise, often when one is sick or when the air isdirty * Please cover your mouth and nose when you sneeze! itc
2010年ESL之就医和人际交往
The Great Tomato Debate 有名的西红柿辩论 In 1893, the U.S. Supreme Court heard a case that hinged on whether the tomato was a fruit or a vegetable. 1893年，美国最高法院有一场关于西红柿到底是水果还是蔬菜的案子。 De
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And you know, what struck me when I first met Barack was that even though he had this funny name, and even though he had grown up all the way across the continent in Hawaii, his family was so much like mine. He was raised by grandparents who were wor
名人励志英语演讲
Those of you who have been listening to my podcast for the past three years, will know that I have complained about my camera on quite a few occasions. Though it has been both useful and practical for my podcasts, and small enough to fit in my handba
英语博客 A cup of English
BARBARA KLEIN: This is SCIENCE IN THE NEWS in VOA Special English. Im Barbara Klein. STEVE EMBER: And Im Steve Ember. Today we tell about the beauty and science of orchids, some of natures most interesting flowers. Orchids at the U.S. Botanic Garden
2010年VOA慢速英语(四)月
Bees Are Misunderstood, Experts say Be nice to bees, advises Jeff Miller of DCHoneybees.com. Miller says you might not care as much for your dinner if they were not buzzing around your neighborhood. If we didnt have pollinators the only kinds of food
VOA标准英语2012年(六月)
Greenhouse Gas Speeded Ice Age Melting A new study in the Journal Nature provides compelling evidence that carbon dioxide was a major driver of climate change at the end of the last Ice Age. That correlation supports the prevailing scientific view th
VOA标准英语2012年(四月)
Modern Technology Helping Weather Predictions 现代科技帮助预测变幻莫测天气 WASHINGTON Severe storms that cause heavy damage throughout the world are a reminder of how important it is to be able to predict the weather. A meteorological e
VOA标准英语2014年(十月)
RACHEL MARTIN, HOST: The warming climate means some dramatic changes - more floods, intense wildfires, extreme heat, other changes you may not notice as much. As part of our Summer Series, NPR's Nathan Rott reports from the Rocky Mountains where risi
2018年NPR美国国家公共电台7月
HEALTH REPORT - Blood Pressure Drugs May Prevent Dry Eye Syndrome By Jerilyn Watson Broadcast: Wednesday, April 07, 2004 This is the VOA Special English Health Report. Many people around the world suf
健康与经济
Which Came First: The Proboscis or the Flower? To learn about the plant life of long ago, scientists dig through layers of the Earth, looking for fossil clues. Like bits of fossilized pollen, or spores.And that's where I come in. Timo van Eldijk (EL-
2018年科学美国人1月
Vanilla vines take two to four years to fully mature, and their flowers only bloom for one day of the year. In order for the plants to produce beans, they have to be pollinated that day. In most places where vanilla is grown, it isn't a native plant,
留美老师带你每日说英文
It's 9 a.m. and while the wood lice are having a gasp on the dressing table, the trunk's been gutted from the inside out by this mighty homewrecker. Woodworms lay their legs in cracks and crevices and it can take the larva three years to grow into ad
自然百科2013年
Archaeologists set out recently to unlock one of the secrets of Stonehenge, the majestic monument in southern England－when were the first standing stones placed at the ancient religious site? The concentric stone circles that make up Stonehenge, 13
英语时差8，16
The store of pollen paints a picture of the plains of 13,000 years ago, a picture that looks very different from the open prairie grassland of today. But why did this region look so different back then? The ice sheets to the north, although retreatin
探索与发现2012年
Fungicide for Plants May Hurt Honeybees除草剂可能对蜜蜂造成伤害 根据一项最新调查结果，一种广泛用于抵抗植物疾病的化学剂会对蜜蜂造成伤害，这项结果令人吃惊。美国之声记者梅根麦格拉思带来
VOA常速英语2013年(八月)
第二章 插入结构(一) 除了上一章的并列结构，英语长句中另一个常用结构就是插入结构。插入结构是在一个句子中 某两个句子成分之间，如主谓，谓宾，定语和受定语等之间插入一个从句，短语或单词以对原来句 子所表达的内容进行补充、添加、限定和说明。有时一个句子会有
四六级写作指导
A Fifth of Brits are Sufferers of Hay Fever 大约五分之一的英国人患花粉过敏症 The UK has been enjoying some lovely summer weather recently. Brits have been making the most of the sunny spell by flocking to the beach and having barbeque
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Voice 1 Thank you for joining us for Spotlight. Im Ruby Jones. Voice 2 And Im Joshua Leo. Spotlight uses a special English method of broadcasting. It is easier for people to understand no matter where in the world they live. Voice 1 Lucy Parry was ge
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