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英语听力:自然百科 探索世界奥秘之Wild Africa - Deserts(浩瀚沙漠) Unit03

时间:2020-03-04 17:44来源:互联网 提供网友:nan   字体: [ ]
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Pinning the ants to the hot sand surface, the spiders first cook them to death before dragging them under.

In the Namib, even the toughest animals struggle with the heat. Gemsbok trek1 to the crests2 of the highest dunes3 to seek relief in the breeze.

With no cloud cover, solar radiation blasting the desert is intense. The mid-day sand is so hot. It's like a bed of burning coals. The Namib quickstep. Over millions of years, you learn to keep your claws cool. Pushed by the wind, the dunes avalanche4. The Namib's residents can't fight the tide.

Though the dunes are unstable5, they provide a home for a remarkable6 creature. The trapdoor spider only builds its nest on the top of the steepest dunes. It's learned to do this because it has a very aggressive enemy, a wasp7, which relentlessly8 scours9 the sand.

Though its eyesight is poor, the wasp has very sensitive hairs on its legs which can pick up the slightest scent10 of a spider. When it finds a nest, the wasp quickly works out how deep the burrow11 is. If it's shallow, the wasp starts digging for up to two hours. It's hard work against the slipping sand. 

words:

1.trek:艰辛跋涉

eg:The old man treked through the moutains.

2.quickstep:齐步,轻快步曲

3.avalanche:雪崩

4.scour:搜索,急速穿过

eg:scour the forest

scour the library for reference


点击收听单词发音收听单词发音  

1 trek 9m8wi     
vi.作长途艰辛的旅行;n.长途艰苦的旅行
参考例句:
  • We often go pony-trek in the summer.夏季我们经常骑马旅行。
  • It took us the whole day to trek across the rocky terrain.我们花了一整天的时间艰难地穿过那片遍布岩石的地带。
2 crests 9ef5f38e01ed60489f228ef56d77c5c8     
v.到达山顶(或浪峰)( crest的第三人称单数 );到达洪峰,达到顶点
参考例句:
  • The surfers were riding in towards the beach on the crests of the waves. 冲浪者们顺着浪头冲向岸边。 来自《简明英汉词典》
  • The correspondent aroused, heard the crash of the toppled crests. 记者醒了,他听见了浪头倒塌下来的轰隆轰隆声。 来自辞典例句
3 dunes 8a48dcdac1abf28807833e2947184dd4     
沙丘( dune的名词复数 )
参考例句:
  • The boy galloped over the dunes barefoot. 那男孩光着脚在沙丘间飞跑。
  • Dragging the fully laden boat across the sand dunes was no mean feat. 将满载货物的船拖过沙丘是一件了不起的事。
4 avalanche 8ujzl     
n.雪崩,大量涌来
参考例句:
  • They were killed by an avalanche in the Swiss Alps.他们在瑞士阿尔卑斯山的一次雪崩中罹难。
  • Higher still the snow was ready to avalanche.在更高处积雪随时都会崩塌。
5 unstable Ijgwa     
adj.不稳定的,易变的
参考例句:
  • This bookcase is too unstable to hold so many books.这书橱很不结实,装不了这么多书。
  • The patient's condition was unstable.那患者的病情不稳定。
6 remarkable 8Vbx6     
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。
7 wasp sMczj     
n.黄蜂,蚂蜂
参考例句:
  • A wasp stung me on the arm.黄蜂蜇了我的手臂。
  • Through the glass we can see the wasp.透过玻璃我们可以看到黄蜂。
8 relentlessly Rk4zSD     
adv.不屈不挠地;残酷地;不间断
参考例句:
  • The African sun beat relentlessly down on his aching head. 非洲的太阳无情地照射在他那发痛的头上。
  • He pursued her relentlessly, refusing to take 'no' for an answer. 他锲而不舍地追求她,拒不接受“不”的回答。
9 scours ee7f4564a428cb0792d3d879896a8d03     
走遍(某地)搜寻(人或物)( scour的第三人称单数 ); (用力)刷; 擦净; 擦亮
参考例句:
  • The roasting pan scours better than pot. 烤盘比锅容易擦干净。
  • The best scours for UF membrane washing were 0.1%NaOH and 0.5%U10 solution consecutively washing. 0.1%NaOH 和0.5%U10溶液是理想的超滤膜清洗剂。
10 scent WThzs     
n.气味,香味,香水,线索,嗅觉;v.嗅,发觉
参考例句:
  • The air was filled with the scent of lilac.空气中弥漫着丁香花的芬芳。
  • The flowers give off a heady scent at night.这些花晚上散发出醉人的芳香。
11 burrow EsazA     
vt.挖掘(洞穴);钻进;vi.挖洞;翻寻;n.地洞
参考例句:
  • Earthworms burrow deep into the subsoil.蚯蚓深深地钻进底土。
  • The dog had chased a rabbit into its burrow.狗把兔子追进了洞穴。
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TAG标签:   英语听力  自然百科
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