每周一聽——那些年我們一起練過的聽力（第198期）

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每周一聽——那些年我們一起練過的聽力（第198期）
如果對(duì)本活動(dòng)有興趣就收聽我吧�。�！

    注意：參與活動(dòng)的蟲子請(qǐng)把自己的答案以站內(nèi)信形式發(fā)送給我，并在活動(dòng)帖里占位回復(fù)，方便評(píng)分，下周六下期活動(dòng)發(fā)布之前有效哦。還有其他不懂之處，請(qǐng)?jiān)诖颂�里面直接留言回�?fù)，我們將盡快回答。
    PS：站內(nèi)信的發(fā)送方式為：點(diǎn)擊我的用戶名（杜小丫個(gè)人主頁http://www.gaoyang168.com/bbs/space.php?uid=1917265），將答案輸入對(duì)話框點(diǎn)擊發(fā)送即可。別忘記回帖占座喔！
獎(jiǎng)項(xiàng)——聽寫后正確填空者可得BB獎(jiǎng)勵(lì)
評(píng)分規(guī)則：
每篇設(shè)空十處，每答對(duì)一空獎(jiǎng)勵(lì)一個(gè)BB，全對(duì)的蟲子可得15個(gè)BB獎(jiǎng)勵(lì)。有好的建議大家可以跟帖留言，加油哦~~~~~~

    Over the last year, beekeepers in the U.S. lost nearly half their honeybee hives. And there are a lot of     (1)    culprits for this so-called beepocalypse—from parasitic mites, to viruses, to simple land use changes. But a study out earlier this year    (2)      to another possibility: poor sperm quality among the drone bees, leading to colony    (3)    . And now another group of researchers may have found a reason for the subpar sperm: neonicotinoid pesticides. These substances contain chemicals similar to nicotine and affect insect    (4)    systems. 
    "So for the drones that were    (5)    to pesticides during development, it appears there were more dead sperm in their reproductive tracts." Geoff Williams, an entomologist at the University of Bern in Switzerland and Agroscope, a Swiss federal research facility.
    Williams and his colleagues studied the effects of two neonicotinoid pesticides on honeybee drones, genetically assigned to mate with    (6)    . "They've got really big eyes so they can    (7)    these queens flying through the air. They eat and have sex. Or try to have sex at least." 
But in 20 honeybee hives Williams and his    (8)    found that those drones exposed to standard environmental levels of the pesticides were shorter-lived, thus having fewer opportunities to mate. And even if the drones did survive, they had nearly 40 percent fewer living sperm than did control bees—meaning the pesticides were acting like honeybee contraceptives. The study appears in the Proceedings of the Royal Society B.
Williams says pesticides are just one of many factors    (9)    bees. But it looks like the way farmers treat some crops could    (10)    affect the pollinators those crops also rely on. 
雖然在七夕發(fā)每周一聽很殘忍，但是還是很高興能在這個(gè)節(jié)日里祝大家節(jié)日快樂，Happy Valentine's Day!�。。�

上期答案
1、resilient
2、clinging
3、passenger
4、forecast
5、ambitious
6、poured
7、thrive
8、steam
9、revenues
10、processes

       

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• 198期.mp3

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