纪录片《我们的地球》 第338期 广袤草原(3)

Grasslands² occur where rain is too sporadic³ for forests to exist.

降雨量不足以养育森林时就会出现草原。

The rain that a grassland¹ needs to survive for a year might arrive all at once.

草原生长所需的年降雨量可能会一次来临。

Storms like these can release 12 inches of rain in 24 hours.

这样的暴雨在24小时内能达到300毫米降雨量。

Not much fun if you're out in it.

淋起来可不好受。

Eventually the earth can't soak up any more, and the grassland undergoes a radical⁴ change.

最终土壤无法继续吸收雨水，草原也完全变了样子。

Many plants would drown here, but grasses thrive.

许多植物会被淹死，而草本却会茁壮生长。

They grow so fast, their leaves quickly rise above the water and into the sunlight.

它们长得飞快，茎叶迅速伸出水面，沐浴在阳光下。

Here in southern Africa, water transforms one of the most remarkable⁵ grasslands on Earth, the Okavango.

在南非，降水能让世界上最奇特的草原之一改头换面，奥卡万戈三角洲。

Every year, 5,000 square miles of grassland are flooded.

每年都有近一万三千平方公里的草原被水淹没。

For one pride of lions, this poses a major problem.

对于狮群来说，这成了最大的问题。

1 grassland   

n.牧场，草地，草原

参考例句：

• There is a reach of grassland in the distance.远处是连绵一片的草原。
• The snowstorm swept the vast expanse of grassland.暴风雪袭击了辽阔的草原。

2 grasslands   

n.草原，牧场( grassland的名词复数 )

参考例句：

• Songs were heard ringing loud and clear over the grasslands. 草原上扬起清亮激越的歌声。 来自《现代汉英综合大词典》
• Grasslands have been broken and planted to wheat. 草原已经开垦出来，种上了小麦。 来自《简明英汉词典》

3 sporadic   

adj.偶尔发生的 [反]regular；分散的

参考例句：

• The sound of sporadic shooting could still be heard.仍能听见零星的枪声。
• You know this better than I.I received only sporadic news about it.你们比我更清楚，而我听到的只是零星消息。

4 radical   

n.激进份子，原子团，根号；adj.根本的，激进的，彻底的

参考例句：

• The patient got a radical cure in the hospital.病人在医院得到了根治。
• She is radical in her demands.她的要求十分偏激。

5 remarkable   

adj.显著的，异常的，非凡的，值得注意的

参考例句：

• She has made remarkable headway in her writing skills.她在写作技巧方面有了长足进步。
• These cars are remarkable for the quietness of their engines.这些汽车因发动机没有噪音而不同凡响。