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Newsy新闻懒人包(视频+字幕+讲解):科学家发明最先进的方法消灭蚊子

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Mosquito-borne diseases kill approximately 725,000 people a year. But scientists are cracking down on these pests with some high-tech tools.

每年大约有725,000人死于蚊子传播的疾病。但科学家正在用一些高科技工具来对付这些害虫。

One group of inventors created a mosquito-killing laser. The device can detect insects in its view and choose which ones to shoot down.

一组发明家发明了一种灭蚊激光。该装置可以在其视图中探测昆虫,并选择将哪些击落。

Another firm created mutant mosquitoes. Scientists genetically modified males with faulty genes that cause their offspring to die soon after birth. And it's already had some success: Field studies showed this caused an 82 percent decline in mosquito populations.

另一家公司制造变异蚊子。科学家对有缺陷基因的雄性进行基因改造,使它们的后代出生后不久就死亡。而且已经取得一些成功,现场研究发现这使得蚊子种群下降了82%

Researchers have also proposed infecting mosquitoes with fungus, since mosquitoes have developed resistances to lots of insecticides.

研究人员还建议用真菌感染蚊子,因为蚊子对许多杀虫剂产生了抗性。

One group of scientists took a strain of mosquito-killing fungi and combined it with toxins from spiders and scorpions to make it work more quickly. After five days, nearly none of the mosquitoes infected with the fungus could transfer malaria.

一组科学家采集了一株消灭蚊子的真菌,并将其与蜘蛛和蝎子的毒素结合起来,使之更迅速的发挥作用。五天之后,感染真菌的蚊子几乎都不能传播疟疾。

译文属可可原创,仅供学习交流使用,未经许可请勿转载。

重点单词   查看全部解释    
device [di'vais]

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n. 装置,设计,策略,设备

 
faulty ['fɔ:lti]

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adj. 有错误的,有缺点的

 
genetically [dʒe'netikəli]

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adv. 遗传(基因)方面

 
social ['səuʃəl]

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adj. 社会的,社交的
n. 社交聚会

 
offspring ['ɔ:fspriŋ]

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n. 子孙,后代,产物

 
invitation [.invi'teiʃən]

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n. 邀请,招待,邀请函,引诱,招致

 
band [bænd]

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n. 带,箍,波段
n. 队,一群,乐队

 
combine [kəm'bain]

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v. 结合,联合,使结合
n. 集团,联合企业

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expertise [.ekspə:'ti:z]

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n. 专家的意见,专门技术

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transfer [træns'fə:]

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n. 迁移,移动,换车
v. 转移,调转,调任

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