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SSS 2011-12-21

时间:2012-01-13 05:50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)
 spiciness is chilli pepper's best defense1 against seed attacking microbes.but not all chillis are hot, because producing that heat comes at a price.so says a study in journal proceeding2 the royal society b.researchers look at wild chilli populations along a 185 miles * in southern Bolivia as climate goes from wet to dry.as it said, they taste tested chillies for heat,later they analysed samples for concentrations of *,spicy3 stuff. turns out only a 1/5 of chilli plants in dry region have heat. but in wet areas all the chillis will become there.because that's where fungi4 attack the peppers. and chillis need chemical weapons to protect their seeds.but there is a cost for that defense,spicy chilli plant in this study use water far less efficiently5. during the period of drought, they produce only  half as many seeds as their mild cousins. as for home gardeners hoping to grow spicy chillies,don't figure on simply watering your garden one.the authors say dislike the spicy gene6 you have to tend that pepper patch for 20000 generations.

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1 defense AxbxB     
n.防御,保卫;[pl.]防务工事;辩护,答辩
参考例句:
  • The accused has the right to defense.被告人有权获得辩护。
  • The war has impacted the area with military and defense workers.战争使那个地区挤满了军队和防御工程人员。
2 proceeding Vktzvu     
n.行动,进行,(pl.)会议录,学报
参考例句:
  • This train is now proceeding from Paris to London.这次列车从巴黎开往伦敦。
  • The work is proceeding briskly.工作很有生气地进展着。
3 spicy zhvzrC     
adj.加香料的;辛辣的,有风味的
参考例句:
  • The soup tasted mildly spicy.汤尝起来略有点辣。
  • Very spicy food doesn't suit her stomach.太辣的东西她吃了胃不舒服。
4 fungi 6hRx6     
n.真菌,霉菌
参考例句:
  • Students practice to apply the study of genetics to multicellular plants and fungi.学生们练习把基因学应用到多细胞植物和真菌中。
  • The lawn was covered with fungi.草地上到处都是蘑菇。
5 efficiently ZuTzXQ     
adv.高效率地,有能力地
参考例句:
  • The worker oils the machine to operate it more efficiently.工人给机器上油以使机器运转更有效。
  • Local authorities have to learn to allocate resources efficiently.地方政府必须学会有效地分配资源。
6 gene WgKxx     
n.遗传因子,基因
参考例句:
  • A single gene may have many effects.单一基因可能具有很多种效应。
  • The targeting of gene therapy has been paid close attention.其中基因治疗的靶向性是值得密切关注的问题之一。
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