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SSS 2012-01-31

时间:2012-02-17 07:29来源:互联网 提供网友:gmeng   字体: [ ]
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    (单词翻译:双击或拖选)

 To a female orb1 web spider, a suitable male can look like a mate and meal. For these spiders, the dating game has turned into a deadly dance of evolutionary2 one. the female spiders can choose when to cut off their relations by eating her partner or kicking him out. The males do unlikely strategy to make sure they have some say in the matter: self-castration.  Males are able to leave part or all of their organ inside of a female, which decreases the odds3 the femal will be able to mate again. But new research shows that when a male leaves his whole , his likelyhood of fathering the next batch4 of eggs is much higher. Why? His parting gift keeps on giving even after he is gone. This remote copulation technique actually boosts the amount and speed of sperm5 transfered to the female. The behavior is described in the journal biology letters. So for these unlucky fellows, it is better to have loved and lost.


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1 orb Lmmzhy     
n.太阳;星球;v.弄圆;成球形
参考例句:
  • The blue heaven,holding its one golden orb,poured down a crystal wash of warm light.蓝蓝的天空托着金色的太阳,洒下一片水晶般明亮温暖的光辉。
  • It is an emanation from the distant orb of immortal light.它是从远处那个发出不灭之光的天体上放射出来的。
2 evolutionary Ctqz7m     
adj.进化的;演化的,演变的;[生]进化论的
参考例句:
  • Life has its own evolutionary process.生命有其自身的进化过程。
  • These are fascinating questions to be resolved by the evolutionary studies of plants.这些十分吸引人的问题将在研究植物进化过程中得以解决。
3 odds n5czT     
n.让步,机率,可能性,比率;胜败优劣之别
参考例句:
  • The odds are 5 to 1 that she will win.她获胜的机会是五比一。
  • Do you know the odds of winning the lottery once?你知道赢得一次彩票的几率多大吗?
4 batch HQgyz     
n.一批(组,群);一批生产量
参考例句:
  • The first batch of cakes was burnt.第一炉蛋糕烤焦了。
  • I have a batch of letters to answer.我有一批信要回复。
5 sperm jFOzO     
n.精子,精液
参考例句:
  • Only one sperm fertilises an egg.只有一个精子使卵子受精。
  • In human reproduction,one female egg is usually fertilized by one sperm.在人体生殖过程中,一个精子使一个卵子受精。
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