VOA慢速英语(翻译+字幕+讲解):海水变暖威胁全人类的食物资源
日期:2016-10-10 19:13

(单词翻译:单击)

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听力文本

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Ocean 'Blob' Caused Dangerous Algae Bloom
Tiny water plants called phytoplankton serve as food for many sea creatures, including whales, shrimp, jellyfish and snails.
Phytoplankton do well in cold water. But if water temperatures rise by only two degrees Celsius, the phytoplankton struggle. That is what happened in the last three or four years in the northern part of the Pacific Ocean.
Researchers say an unusual area of warm water spread throughout the Northern Pacific. Scientists called the warm water "the blob," as if it were a character in an old science fiction movie.
At its largest, the blob stretched 1,600 square kilometers and reached depths of 91 meters.
This large mass of warm water had a damaging effect on the ocean food chain. Many fish that depend on phytoplankton swam away from the area. As a result, sea birds and sea lions that eat those fish starved.
Scientists from the National Oceanic and Atmospheric Administration and the University of Washington have found that the warm ocean "blob" caused a harmful algae bloom. That fast growth in algae hurt fishing grounds along the U.S. West Coast and Canada's British Columbia.
The researchers recently published their study in the journal Geophysical Research Letters.
They looked at the algae, called P. australis. The researchers found that the algae can grow much faster than normal if it is exposed to warm water.
The higher levels of algae also produced more of a poisonous chemical that can cause problems for everything from shellfish to dolphins to sea lions. It also causes problems for humans if too much of the chemical builds up in their blood.
Researchers say algae blooms like this one will continue as ocean waters warm. The algae will hurt sea animals, birds, and fish. It may damage food resources for humans all over the world, the scientists say.
I'm Dan Friedell.

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词汇解析

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1.serve as 担任;作为

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He volunteered to serve as the manager of our department store.
他自荐当我们商场的经理xpH*,Otx7u,&d18

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2.sea creatures 海洋生物

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I've mainly searched for fossils and deep sea creatures.
我已经大体上寻找到化石和深海生物|HR!xV,Yd+R^J4

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3.food chain 食物链

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The whole food chain is affected by the overuse of chemicals in agriculture.
整个食物链因农业生产过程过多使用化学品而受到影响*p#!!!+1-)KOPYwXQ

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4.water plants 水生植物

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An aquarium is a place where water animals and water plants are kept.
鱼缸就是养水生动物和水生植物的地方!sqwok(Tv4M

内容解析

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1.Phytoplankton do well in cold water.

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do well in 在某方面做的好

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She is a very clever girl; she will do well in life.
她是个非常聪明的女孩,日后会成功的.GQ-9Z.ankkQ#8
He will do well in that work because he has a lot on the ball.
他会做好这件事,因为他很有一手sD+qJ0DfDyshCe5WK)^w

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2.It also causes problems for humans if too much of the chemical builds up in their blood.

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build up 增进;加强

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Slowly a thick layer of fat builds up on the pan's surface.
慢慢地,平底锅表面积起了一层厚厚的油脂weUY)-.VBF(yg7CDx^q7
The writer builds up a clever contextual picture of upper class life.
作者巧妙地构筑了一幅上流社会生活的背景图画BC!%vvV4@R,

参考译文

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海水变暖威胁全人类的食物资源
微型水生植物即浮游生物是鲸、虾、水母及螺类等海洋生物的食物)KXJN(ihaV#
浮游生物可在冷水中存活le_Zpf2czpZ9&。但是如果水温升高仅2摄氏度,浮游生物就难以存活&Oo1E9((N4AJr。过去三四年里,太平洋北部海域就出现了这一问题uGYkfG#G2#Fb~DzaA&yE
研究人员称,一片异常的暖水区正沿着北太平洋扩散5+pmun%l&24#*[vjP2xe。科学家称其为“温水区”,就像古老科幻影片中的角色一样ezPZ@kqUqs^BJ5Bvb
“温水区”分布最广时可达1600平方公里,深度达91米KDg(cZn~yTp

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海水变暖藻类繁殖迅速.jpg
大片温水区会扰乱海洋食物链e;6d*_Ua%i@R]。以浮游生物为食的大量鱼群离开海域O=(Y)=EnWip^yjz(uNL。最终导致以鱼群为生的海鸟和海狮失去食物来源Om[!_UspFRP6
美国国家海洋与大气管理局和华盛顿大学的科学家们发现,“温水区”会引发有害藻类大量繁殖现象(0#Qe(0lhqfd。藻类的大规模繁殖导致美国西海岸与加拿大英属哥伦比亚省沿岸渔业受损严重Ov!R7GSC)hbbKpH
近日,研究人员将结果发表在《地球物理研究快报》上gWC=2D,v0^DevF
研究人员对名为“芦苇”的藻类进行研究^,H.qINEiN9=;iesOA。他们发现,有害藻类在温水区中繁殖地更快hQEh)=uq-Z&;;IdJ
藻类过度繁殖还会释放出更多的有毒化学物质,影响贝类、海豚及海狮等海洋生物的生存S.RY%Hv^=ns(,&。如果人类血液中积累过多化学物质也会引发疾病rSQ=T1xH4&fn%LD
研究人员称,随着海水变暖,有害藻类会继续繁殖t5MvCnX;eb%%r&GtM2。藻类会伤害海洋动物、鸟类和鱼类ecHRAdRaW#X_N1aT6。科学家认为,它还可能会破坏全人类的食物资源C;)q)58Erm+
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译文为可可英语翻译,未经授权请勿转载!

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重点单词
  • massn. 块,大量,众多 adj. 群众的,大规模的 v.
  • poisonousadj. 有毒的,恶意的
  • atmosphericadj. 大气的,大气层的,制造气氛的
  • administrationn. 行政,管理,行政部门
  • unusualadj. 不平常的,异常的
  • pacificn. 太平洋 adj. 太平洋的 pacific adj
  • affectedadj. 受影响的,受感动的,受疾病侵袭的 adj. 做
  • layern. 层 vi. 分层 vt. 将某物堆积成层 n
  • exposedadj. 暴露的,无掩蔽的,暴露于风雨中的 v. 暴露,
  • fictionn. 虚构,杜撰,小说