巴拿马病威胁香蕉生存_社会生活

巴拿马病威胁香蕉生存

文章来源：未知文章作者：enread 发布时间：2015-12-19 06:51 字体： [大中小]　进入论坛

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The most popular fruit in the world - bananas - may be about to be wiped out by an invisible killer¹ bug².

一种无形的致死性病菌或许马上就要把香蕉——这种世界上最受欢迎的水果——“赶尽杀绝”了。

Panama Disease - which has already destroyed the most popular variety of banana - is back and its spreading like wildfire across global crops.

The problem is, bananas are seedless and are essentially³ all cloned from exactly the same plant - making them extremely vulnerable to disease.

A new study has warned the much-loved yellow fruit will be wiped out if we don't take action NOW.

The Gros Michel banana was once the most popular variety in the world – until it was completely killed off by Panama Disease in the 1950s.

The Cavendish banana - from the UK - stepped in to replace the Gros Michel and now makes up 95% of all banana exports in the world.

But Panama Disease - which is transmitted through soil and water and attacks the banana plant's roots - can lay dormant⁴, waiting to strike, for up to 30 years.

And now it's back with a new global epidemic⁵.

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收听单词发音

1 killer
n.杀人者，杀人犯，杀手，屠杀者
参考例句：
Heart attacks have become Britain's No.1 killer disease.心脏病已成为英国的头号致命疾病。 The bulk of the evidence points to him as her killer.大量证据证明是他杀死她的。

2 bug
n.虫子；故障；窃听器；vt.纠缠；装窃听器
参考例句：
There is a bug in the system.系统出了故障。 The bird caught a bug on the fly.那鸟在飞行中捉住了一只昆虫。

3 essentially
adv.本质上，实质上，基本上
参考例句：
Really great men are essentially modest.真正的伟人大都很谦虚。 She is an essentially selfish person.她本质上是个自私自利的人。

4 dormant
adj.暂停活动的；休眠的；潜伏的
参考例句：
Many animals are in a dormant state during winter.在冬天许多动物都处于睡眠状态。 This dormant volcano suddenly fired up.这座休眠火山突然爆发了。

5 epidemic
n.流行病；盛行；adj.流行性的，流传极广的
参考例句：
That kind of epidemic disease has long been stamped out.那种传染病早已绝迹。 The authorities tried to localise the epidemic.当局试图把流行病限制在局部范围。

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