【读遍世界?十万个为什么1 】为什么夏天你总被蚊子咬(3)?

jeswu (caichi321) 铁杆会员
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发表于:2013-07-06 13:00 [只看楼主] [划词开启]


本周我们关注一下为嘛夏天你总被蚊子咬? 为什么夏末秋初的蚊子好像更毒了呢?


  Gotthose CO2-emitting traps in your yard?
  院子里布置了这些释放二氧化碳的陷阱?


  Great! You may think youre outsmarting us with these devices, which emit carbon dioxide to lure us into a trap. But they may attract more of us than they are able to trap, increasing our presence in your yard. UV bug zappers are not effective either: Only a fraction of the pests they kill are mosquitoes
  
  Pregnant? Yum
  怀孕了?难怪


  If youre a woman whos expecting, you emit more carbon dioxide and your abdomen has a higher temperature than when youre not pregnant,drawing some of us right to you. Sorry, baby

  When it comes to West Nile, end-of-summer bites may do more harm
  Its simple logic: We bite birds who have the West Nile virus; then we bite humans and spread it. By summers end,  we’ve had more chances to bite infected birds



课后练习。中文作答,楼主可见

为什么夏末秋初的蚊子更有害? 100HY


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