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SSS 2012-01-03

时间:2012-02-17 05:15来源:互联网 提供网友:gmeng   字体: [ ]
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 Ever wondered why mosquito eat some people up but leave others relatively1 unscathed. a new study  find this prefential treament due to smells produced by the microscopic2 critters that cover our bodies. the reaserch is in the journal public library science one.to mosquito ,every human has a particular smell and differences are  due in part the particular bacteria  on each individual's skin.  the study test the malaria-transmitting Anopheles gambiae mosquitos attraction to the ordors fifity adult man.the participant's avoided items such as garlic that will change their natual smell.reaserchers collected the male scents3 by rubbing glass beads4 on the bottom on each particapant's feet and swabbed the same skin for microbes and they  discovered that  mosquito perfer the smells of skin with more abundant but less diverse bacteria communities. the scientists suggest that the diverse community may  include some microbes that produce compounds that mosquitos  natuarlly dislike .a further reaserch can identify this compounds, it could  lead to their development repellents to make bloodthirsty mosquites buzz off.


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1 relatively bkqzS3     
adv.比较...地,相对地
参考例句:
  • The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
  • The operation was relatively painless.手术相对来说不痛。
2 microscopic nDrxq     
adj.微小的,细微的,极小的,显微的
参考例句:
  • It's impossible to read his microscopic handwriting.不可能看清他那极小的书写字迹。
  • A plant's lungs are the microscopic pores in its leaves.植物的肺就是其叶片上微细的气孔。
3 scents 9d41e056b814c700bf06c9870b09a332     
n.香水( scent的名词复数 );气味;(动物的)臭迹;(尤指狗的)嗅觉
参考例句:
  • The air was fragrant with scents from the sea and the hills. 空气中荡漾着山和海的芬芳气息。
  • The winds came down with scents of the grass and wild flowers. 微风送来阵阵青草和野花的香气。 来自《简明英汉词典》
4 beads 894701f6859a9d5c3c045fd6f355dbf5     
n.(空心)小珠子( bead的名词复数 );水珠;珠子项链
参考例句:
  • a necklace of wooden beads 一条木珠项链
  • Beads of perspiration stood out on his forehead. 他的前额上挂着汗珠。
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