标签：pollination 相关文章
生活半对半[The 50-Percent Theory of Life] I believe in the 50-percent theory. Half the time things are better than normal; the other half, they are worse. I believe life is a pendulum swing. It takes time and experience to understand what normal
王强英语美文
-So these look terribly small, almost mistaken as mosquitoes.-Yeah, we could do, but I see them that they got two pairs of wings. -And actually they are proper bees. How did you find them be there? -So... Well, essentially it's the h* so these small
探索与发现2013年
Citizen Scientists Seek Solutions to Bumblebees Problems Hundreds of amateur citizen scientists have begun studying the Pacific Northwest area of the United States. They are seeking to learn more about the nearly 30 species of bumblebees that live th
2018年VOA慢速英语(六)月
Extreme Weather Having Effects Worldwide 恶劣天气在全球产生影响 We expect uncomfortably hot temperatures in midsummer, even violent weather in certain areas. But this year, North America ha
VOA2005（下）--环境科学探索
Insects And Climate Change Its well known that big animals, like polar bears, are vulnerable to climate change. The Earth warms, polar ice melts, and the bears are out of luck. The same goes for tigers, sea lions, elephants. As the globe heats up and
英语时差8，16
One of the first thing they look at is taking place in the grounds of University of Reading. They are hand-pollinating strawberry plants. It might seem strange, but hand-pollination is something that's already been trying out in southwest China, wher
探索与发现2014年
-Do we have any fruits?-No fruits. There's no fruits available today. -Perhaps some tomatoes? -Tomatoes? No, no. Absolutely no tomatoes. It's fruit pollinated by bees. Like it, enjoy your meal? -No, it's little bit dry, though. -Bit bland. -OK. You m
探索与发现2013年
科学家曾对蜜蜂离奇死亡或消失的原因进行多番推论，包括全球气候暖化、疾病或杀虫药等。科学家和业界称这个蜜蜂消失现象为蜂群衰竭失调(Colony Collapse Disorder，简称CCD)。爱因斯坦的蜜蜂预言真是所言不假，他曾经说过没有蜜蜂，就没有授粉，就没有植物，就没有动物
国外媒体新闻
By Steve Mort Tampa, Florida 11 April 2007 Farmers in the United States say they are growing increasingly concerned about a mysterious shortage of honeybees. The U.S. government says it is investigating a dramatic decline in the bee population over
2007年VOA标准英语（四月）
EXPLORATIONS - Working to Protect Plants for Future Generations CHRISTOPHER CRUISE: Im Chrisopher Cruise. MARIO RITTER: And Im Mario Ritter with EXPLORATIONS in VOA Special English. Today we tell about concerns about plant life, including agricultura
2012年VOA慢速英语(二)月
Midwest Farmers Battling Worst US Drought in Generation In this year's record setting heat under the hot summer sun, McLean County Illinois farmer Matt Hughes' crops are wilting. Each day without rainclouds brings new disappointment and worry for Hug
VOA标准英语2012年(七月)
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)
模仿文本： I'm Adam Hart, and this is Discovery, On the Trail of the American Honeybee. Bee-keeping in the United States takes place on an industrial scale. Nowhere more so than in California Central Valley which, as I discovered last year, is h
英音模仿秀
Anyone who arrives in New Zealand by plane knows about Biosecurity NZ. Bio means living and security means safe. Biosecurity NZ is a government department. Their job is to make our country safe from unwanted living pests. These pests are plants, anim
新西兰英语
As the flower's heat increases, a cloud of odor rises up. The foul perfume carries far and wide. It doesn't go unnoticed. Carrion beetles arrive on the scene. The beetles come in search of a feast of warm decaying flesh, but they've been tricked. Sli
英语听力：文化博览2008年
With most of us enjoying the wall to wall sunshine this bank holiday, the last thing weve been praying for is rain. For Ray Manning, the showers cant come quickly enough. His family has been growing fruit in Cambridgeshire the last 4o years. Theyve n
英伦广角
New Corn Variety Boosts Food Security Across Africa In times of drought, parched lands yield few, if any, crops, increasing hunger among communities. As one way of boosting food security during these difficult times, scientists in Kenya and across Af
VOA标准英语2011年(十月)
One kiwi fruit grower in the Bay of Plenty has discovered a disease in his orchard which has frightened all kiwi fruit growers in the area. Tests have shown that the disease is PSA although they dont yet know which type of PSA it is. This disease is
新西兰英语
Rain is essential for life, but too much of it can lead to flooding, causing sewers to overflow and carry contaminants to nearby river systems. 雨水是生命的必需品，但雨量太大会导致洪灾，下水道会积水外溢，并将污染物带
VOA标准英语2019年(二月)
A growing number of the Earths insect population now exists only in collections like these. Nobodys seen those 400 years. A new review of over 70 studies of insect populations suggests that human pressures are causing insect populations to plummet by
VOA标准英语2019年(二月)