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SSS 2009-08-06

时间:2010-05-18 05:58来源:互联网 提供网友:mark@li   字体: [ ]
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    (单词翻译:双击或拖选)

Orchids2 are botany's great mimics3, all in the service of getting pollinated. Some have evolved to resemble female wasps4 to attract males. Others produce odors that smell like potential mates or like more attractive flowers. Now a study published in the journal Current Biology adds another form of floral fabrication to this list: an orchid1 that releases the exact same chemical compound that honeybees use to alert their hive mates.

Why? Because the bees are the favorite food of the larvae5 of Vespa hornets. And when the orchid Dendrobium sinense sends out these false alarms, the hornets pounce6 on the petals7, thinking they’ll bring a bee dinner home to the kids. Instead they become unwitting pollinators.

Researchers were intrigued8 by the hornets’ mysterious violent attacks on the orchids. They were able to isolate9 the pheromone the flower uses to drive the hornets wild. The finding might find use in agriculture. The Vespa hornet is a big pest for commercial beekeepers. This research could help develop environmentally friendly, species-specific traps to control the Vespa population, and take the sting out of these problematic pollinators.

 


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1 orchid b02yP     
n.兰花,淡紫色
参考例句:
  • The orchid is a class of plant which I have never tried to grow.兰花这类植物我从来没种过。
  • There are over 35 000 species of orchid distributed throughout the world.有35,000多种兰花分布在世界各地。
2 orchids 8f804ec07c1f943ef9230929314bd063     
n.兰花( orchid的名词复数 )
参考例句:
  • Wild flowers such as orchids and primroses are becoming rare. 兰花和报春花这类野花越来越稀少了。 来自《简明英汉词典》
  • She breeds orchids in her greenhouse. 她在温室里培育兰花。 来自《简明英汉词典》
3 mimics f8207fb5fa948f536c5186311e3e641d     
n.模仿名人言行的娱乐演员,滑稽剧演员( mimic的名词复数 );善于模仿的人或物v.(尤指为了逗乐而)模仿( mimic的第三人称单数 );酷似
参考例句:
  • Methods:Models were generate by CT scan,Mimics software and Abaqus software. 方法:采用CT扫描,Mimics软件和Abaqus软件的CAD进行三维有限元模型的创建。 来自互联网
  • Relaxing the mind and body mimics the effect that some blood-pressure pills would have. 放松身心会产生某些降压药才能产生的效果。 来自辞典例句
4 wasps fb5b4ba79c574cee74f48a72a48c03ef     
黄蜂( wasp的名词复数 ); 胡蜂; 易动怒的人; 刻毒的人
参考例句:
  • There's a wasps' nest in that old tree. 那棵老树上有一个黄蜂巢。
  • We live in dread not only of unpleasant insects like spiders or wasps, but of quite harmless ones like moths. 我们不仅生活在对象蜘蛛或黄蜂这样的小虫的惧怕中,而且生活在对诸如飞蛾这样无害昆虫的惧怕中
5 larvae w2CxP     
n.幼虫
参考例句:
  • Larvae are parasitic on sheep.幼虫寄生在绵羊的身上。
  • The larvae prey upon small aphids.这种幼虫以小蚜虫为食。
6 pounce 4uAyU     
n.猛扑;v.猛扑,突然袭击,欣然同意
参考例句:
  • Why do you pounce on every single thing I say?干吗我说的每句话你都要找麻烦?
  • We saw the tiger about to pounce on the goat.我们看见老虎要向那只山羊扑过去。
7 petals f346ae24f5b5778ae3e2317a33cd8d9b     
n.花瓣( petal的名词复数 )
参考例句:
  • white petals tinged with blue 略带蓝色的白花瓣
  • The petals of many flowers expand in the sunshine. 许多花瓣在阳光下开放。 来自《现代英汉综合大词典》
8 intrigued 7acc2a75074482e2b408c60187e27c73     
adj.好奇的,被迷住了的v.搞阴谋诡计(intrigue的过去式);激起…的兴趣或好奇心;“intrigue”的过去式和过去分词
参考例句:
  • You've really intrigued me—tell me more! 你说的真有意思—再给我讲一些吧!
  • He was intrigued by her story. 他被她的故事迷住了。
9 isolate G3Exu     
vt.使孤立,隔离
参考例句:
  • Do not isolate yourself from others.不要把自己孤立起来。
  • We should never isolate ourselves from the masses.我们永远不能脱离群众。
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TAG标签:   SSS  honeybee
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