英语听力：自然百科 探索世界奥秘之Wild Africa - Deserts(浩瀚沙漠) Unit08

Within a month, the spring blooms are finished. The plants now set their seeds, taking advantage of the warm summer winds which sweep the desert.

For a while, the karoo just glows.

But trouble is stiring. Triggered by the rains, an all-devouring army-- locusts².

Millions emerge from eggs buried in the sand, gathering³ into columns which may stretch for ten kilometers. At this stage, they can't fly, only hop⁴, but it doesn't hinder their progress. These sweeping⁵ hordes⁶ devastate⁷ any fresh growth in their path.

After five weeks of steady munching⁸, the infantry⁹ becomes airborne. These breeding swarms¹⁰ can cover up to 80 kilometers a day, but only while the food and moisture last.

So how do you define a desert in Africa? They are places where less than 50 centimeters of rain falls a year. Neighbouring the karoo is a desert which gets the maximum, in brief, but intense summer monsoons¹¹.

words and expression:

1.karoo: an arid¹² plateau of southern Africa非洲干旱的南方

2.locust:any of numerous grasshoppers¹³ of the family Acrididae, often migrating in immense swarms that devour¹ vegetation and crops蝗虫

3.horde:swarm群

4.munch:to chew food audibly or with a steady working of the jaws¹⁴发出声音或高兴地吃

5.infantry becomes airborne:步兵变成空降兵

6.monsoon:a wind system that influences large climatic regions and reverses direction seasonally季风

1 devour   

v.吞没；贪婪地注视或谛听，贪读；使着迷

参考例句：

• Larger fish devour the smaller ones.大鱼吃小鱼。
• Beauty is but a flower which wrinkle will devour.美只不过是一朵，终会被皱纹所吞噬。

2 locusts   

n.蝗虫( locust的名词复数 )；贪吃的人；破坏者；槐树

参考例句：

• a swarm of locusts 一大群蝗虫
• In no time the locusts came down and started eating everything. 很快蝗虫就飞落下来开始吃东西，什么都吃。 来自《简明英汉词典》

3 gathering   

n.集会，聚会，聚集

参考例句：

• He called on Mr. White to speak at the gathering.他请怀特先生在集会上讲话。
• He is on the wing gathering material for his novels.他正忙于为他的小说收集资料。

4 hop   

n.单脚跳，跳跃；vi.单脚跳，跳跃；着手做某事；vt.跳跃，跃过

参考例句：

• The children had a competition to see who could hop the fastest.孩子们举行比赛，看谁单足跳跃最快。
• How long can you hop on your right foot?你用右脚能跳多远？

5 sweeping   

adj.范围广大的，一扫无遗的

参考例句：

• The citizens voted for sweeping reforms.公民投票支持全面的改革。
• Can you hear the wind sweeping through the branches?你能听到风掠过树枝的声音吗？

6 hordes   

n.移动着的一大群( horde的名词复数 )；部落

参考例句：

• There are always hordes of tourists here in the summer. 夏天这里总有成群结队的游客。
• Hordes of journalists jostled for position outside the conference hall. 大群记者在会堂外争抢位置。 来自《简明英汉词典》

7 devastate   

v.使荒芜，破坏，压倒

参考例句：

• A few days before,a fire had devastated large parts of Windsor Castle.几天前，温莎城堡的大部分被一场大火烧毁。
• Earthquakes can also cause tsunamis,which devastate coastal regions.地震还引发海啸，它直接破坏海岸地区。

8 munching   

v.用力咀嚼（某物），大嚼( munch的现在分词 )

参考例句：

• He was munching an apple. 他在津津有味地嚼着苹果。 来自《简明英汉词典》
• Munching the apple as he was, he had an eye for all her movements. 他虽然啃着苹果，但却很留神地监视着她的每一个动作。 来自辞典例句

9 infantry   

n.[总称]步兵(部队)

参考例句：

• The infantry were equipped with flame throwers.步兵都装备有喷火器。
• We have less infantry than the enemy.我们的步兵比敌人少。

10 swarms   

蜂群，一大群( swarm的名词复数 )

参考例句：

• They came to town in swarms. 他们蜂拥来到城里。
• On June the first there were swarms of children playing in the park. 6月1日那一天，这个公园里有一群群的孩子玩耍。

11 monsoons   

n.（南亚、尤指印度洋的）季风( monsoon的名词复数 )；（与季风相伴的）雨季；（南亚地区的）雨季

参考例句：

• In Ban-gladesh, the monsoons have started. 在孟加拉，雨季已经开始了。 来自辞典例句
• The coastline significantly influences the monsoons in two other respects. 海岸线在另外两个方面大大地影响季风。 来自辞典例句

12 arid   

adj.干旱的；(土地)贫瘠的

参考例句：

• These trees will shield off arid winds and protect the fields.这些树能挡住旱风,保护农田。
• There are serious problems of land degradation in some arid zones.在一些干旱地带存在严重的土地退化问题。

13 grasshoppers   

n.蚱蜢( grasshopper的名词复数 )；蝗虫；蚂蚱；（孩子）矮小的

参考例句：

• Grasshoppers die in fall. 蚱蜢在秋天死去。 来自《简明英汉词典》
• There are usually a lot of grasshoppers in the rice fields. 稻田里通常有许多蚱蜢。 来自辞典例句

14 jaws   

n.口部；嘴

参考例句：

• The antelope could not escape the crocodile's gaping jaws. 那只羚羊无法从鱷鱼张开的大口中逃脱。
• The scored jaws of a vise help it bite the work. 台钳上有刻痕的虎钳牙帮助它紧咬住工件。