• [英語聽力] Earth&Sky:在變化的天氣中追蹤蜜蜂

    聽寫填空,只寫填空內(nèi)容,不抄全文,5個(gè)左右的句子,不用寫標(biāo)號(hào),注意標(biāo)點(diǎn),重復(fù)單詞只寫一遍~ Hints: Maryland Wayne Esaias is a NASA scientist. He's been using satellite data to track plant and poll

    2011-10-30 06:00
  • [英語聽力] 科學(xué)60秒:勤勞小蜜蜂,如此命苦

    This past winter, about 30 percent of all the managed honeybees in the U.S. died. That's according to the U.S. Department of Agriculture. Such a die-off is no longer unusual. About a third of hon...

    2011-08-18 10:00
  • [英語聽力] Earth&Sky:蜜蜂的花

    聽寫填空,只寫填空內(nèi)容,不抄全文,4個(gè)單詞/詞組+1個(gè)句子,不用寫標(biāo)號(hào)~ Small fields planted with wildflowers to feed bees – called "bee pastures" – could be a way to revive declining bee populatio...

    2011-07-25 06:30
  • [英語聽力] Earth&Sky:造好蜂是什么意思?

    聽寫填空,只寫填空內(nèi)容,不抄全文,4個(gè)單詞/詞組+1個(gè)句子,不用寫標(biāo)號(hào)~ Honey bees in the United States are in decline. What scientists call Colony Collapse Disorder has wiped out about a third of U....

    2011-06-28 06:30
  • [英語聽力] 關(guān)于蜜蜂混亂的新發(fā)現(xiàn)(2)

    病毒破壞蜜蜂用遺傳物質(zhì)合成抗感染蛋白質(zhì)的功能,研究發(fā)現(xiàn),受損的蛋白質(zhì)無法在受到侵害時(shí)作出有效回應(yīng)。Hints: Reed Johnson University of Nebraska-Lincoln University of Illinois May Berenbaum picorna...

    2009-09-28 00:00
  • [英語聽力] 關(guān)于蜜蜂混亂的新發(fā)現(xiàn)(1)

    各國科學(xué)家致力于蜜蜂神秘失蹤謎題,最終通過蜜蜂基因?qū)ふ业酱鸢?,并發(fā)現(xiàn)瓦螨等小昆蟲可能在病毒傳播中起到重要作用。Hints: University of Illinois United States Department of Agriculture Proceedings of...

    2009-09-27 00:00