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英语听力:2013-12-20 地平线:什么害死了我们的蜜蜂—13

时间:2014-02-18 07:14来源:互联网 提供网友:gmeng   字体: [ ]
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 One thing that excited him for many years is just how advanced their communication is, especially their famous waggle dance, returning from a foraging1 trip, this bee is telling its coworkers precisely2 where she found her pollen3.

They just use the body to inform the others about any important place ought to feed, on the flower or pollen place.
As she cycles the bee repeatedly waggles during one phase of her dance, here walking straight upwards4.
It is this phase which codes the direct relative to the sun and the distance.
Walking upwards while she waggles tells the other bees to head towards the sun, the number of times she moves from side to side tells them how far to fly, the brain controlling this sort of behaviour is clearly rather sophisticated.
This kind of cockiness also requires the highest order of * in this little brain, that means anything which is * on this fine * should have a high impact.
With the radar5 technology, Randolph and his team have been investigating whether neonicotinoids could affect bees' brains, they are testing their ability to find their way home after feeding.
This self feeding place that means bees have been trained from the hives, and we train them stepwise to this location.

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1 foraging 6101d89c0b474e01becb6651ecd4f87f     
v.搜寻(食物),尤指动物觅(食)( forage的现在分词 );(尤指用手)搜寻(东西)
参考例句:
  • They eke out a precarious existence foraging in rubbish dumps. 他们靠在垃圾场捡垃圾维持着朝不保夕的生活。 来自《简明英汉词典》
  • The campers went foraging for wood to make a fire. 露营者去搜寻柴木点火。 来自辞典例句
2 precisely zlWzUb     
adv.恰好,正好,精确地,细致地
参考例句:
  • It's precisely that sort of slick sales-talk that I mistrust.我不相信的正是那种油腔滑调的推销宣传。
  • The man adjusted very precisely.那个人调得很准。
3 pollen h1Uzz     
n.[植]花粉
参考例句:
  • Hummingbirds have discovered that nectar and pollen are very nutritious.蜂鸟发现花蜜和花粉是很有营养的。
  • He developed an allergy to pollen.他对花粉过敏。
4 upwards lj5wR     
adv.向上,在更高处...以上
参考例句:
  • The trend of prices is still upwards.物价的趋向是仍在上涨。
  • The smoke rose straight upwards.烟一直向上升。
5 radar kTUxx     
n.雷达,无线电探测器
参考例句:
  • They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。
  • Enemy ships were detected on the radar.敌舰的影像已显现在雷达上。
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TAG标签:   英语听力  地平线  我们的蜜蜂
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