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CNN双语新闻(翻译+字幕+讲解):基因突变蚊子或能抑制登革热传染

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Time for "THE SHOUTOUT."
Worldwide,there are about 3500 species of what animal-if you think you know it,shout it out.
Is it mosquitoes,cats,horses or sea urchins?
You got three seconds,go.
These animals there are more different species of mosquitoes than the others combined.
That's your answer and that's your shoutout.
All right,the problem: mosquitoes.
The Florida Keys have them. One solution,insecticides.
They've been sprayed for many years across the Keys,keeping the bugs at bay.
But there is one species of mosquito that's built up a resistance to many of the pesticides,and that species can carry dangerous diseases like dengue and yellow fever.
So,another proposed solution,mutant mosquitoes.
A British company has found a way to genetically modify mosquitoes to kill their offspring.
It wants to release millions of them into the Keys to ultimately kill off the dengue carrying mosquito species.
It says no human will be bitten by a genetically modified mosquito because it will only release male mosquitoes which don't bite.
But some critics think that biting females could somehow get into the genetically modified population.
What then?
Also,they question the need for the experiment:
dengue fever isn't the major health threat in the Florida Keys.
Almost 140,000 people have signed the petition to keep this from happening.
The FDA would have to approve it.

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重点单词   查看全部解释    
infection [in'fekʃən]

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n. 传染,影响,传染病

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X
单词infection 联想记忆:
infect+ion→传染;感化
 
fever ['fi:və]

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n. 发烧,发热,狂热
v. (使)发烧,(使

 
modify ['mɔdifai]

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v. 修改,修饰,更改

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X
单词modify 联想记忆:
mod方式,模式+ify→规范化→修改
 
species ['spi:ʃiz]

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n. (单复同)物种,种类

 
population [.pɔpju'leiʃən]

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n. 人口 ,(全体)居民,人数

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单词population 联想记忆:
popul人民+ation→人口
 
release [ri'li:s]

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n. 释放,让渡,发行
vt. 释放,让与,准

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单词release 联想记忆:
源于:relax(v 放松;休息)
 
ultimately ['ʌltimitli]

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adv. 最后,最终

 
resistance [ri'zistəns]

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n. 抵抗力,反抗,反抗行动;阻力,电阻;反对

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X
单词resistance 联想记忆:
re反+sist站立+ance→反抗;抵抗力
 
offspring ['ɔ:fspriŋ]

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n. 子孙,后代,产物

 
genetically [dʒe'netikəli]

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adv. 遗传(基因)方面

 

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