VOA慢速英语(翻译+字幕+讲解):科学家发现罕见史前海洋昆虫化石
日期:2017-08-13 19:41

(单词翻译:单击)

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听力文本

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Scientists found a prehistoric ancestor of an arrow worm among a group of fossils at two national parks in Canada.

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The fossils were found in what is now British Columbia, but was once an ocean.

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The sea worm was 1:3centimeters long and had 50 spines on its head. The spines couldsclose suddenly to capture smaller sea creatures, like shrimp.

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The scientists reportedsaheir discovery in ahe journal Current Biology in early August.

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They are calling ahe creature Capinatator praetermissus. They say it liveds5cc million years ago and is very different from anything alive now.

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Capinatator means "grasping swimmer."

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Derek Briggs is a scientist from Yale University. He ledsahe expedition. He saidsahe creature was larger than today's similar worms. The arrow worms of today have teeth instead of spines.

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Briggs saidsahe worm was probably a good predator because it had so many spines.

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The scientists saidsit is difficult to find evidence of these prehistoric worms because aheir bodies decayedsso quickly. But this discovery was in such good shape, they were able to make a good guess about how the worm looked.

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Researchers were able to make a detailedsdrawing and an animation of how they think the worm moved in the ocean.

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Doug Erwin works for the Smithsonian Institution in Washington, D.C. He was not involved in the research. He saidsahe discovery will help scientists better understand the worms and other life from this ancient period.

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I'm Dan Friedell.

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词汇解析

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But how do you find a fossil of a symbolic thought?

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但你如何找到一块象征性思维的化石呢?

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Alan graspedsahe handle and pulledsit.

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艾伦抓住手柄一拉TJu!+hpcxj#

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Some residents and experts saidsahe predator may be a bear, a wayward panther or cougar, or even a wolf because 3-inch paw tracks were found at the scene.

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一些居民和专家认这种食肉动物可能是一只熊,一头任性的豹子或狮子,抑或是一头狼,因在现场发现3英寸长的爪迹UlP#DIG9d]tA=0e;6!

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decaying organic matter

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腐烂的机物

内容解析

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1.They say it liveds5cc million years ago and is very different from anything alive now.

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This is different from just being tired. You actually feel yourself getting drowsy.

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这和感觉到累是不同的,事实,你只是感觉到昏昏欲睡!A;.5q9Qi.cRZyIl3^6

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Test what occurs when the user "wakes it up," and the environment is different from when they suspendedsit.

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测试当使用者“唤醒它”时发生了什么,这他们被挂起的环境是不同的.^-L(BB9VLC*b(

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2.The arrow worms of today have teeth instead of spines.

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Instead of abating, the wind is blowing even harder.

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风不但没停,反而越刮越大了X=4Qg+Q9PPRU5BGKa#|Z

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She fritteredsaway her time in going to the cinema instead of studying.

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她不把时间花在 习,而是浪费在看电影了r%eiVPPsl5fupXcsE&

2考译文

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科 家在加拿大两个国2级公园的一组化石中现了一种箭虫的史前祖先wN1e*&PeKstkGt&;~Pz#

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这化石是在列颠哥伦比亚现的,这地方以曾是片海O|n~-o7-O%gU^qQ.p=XI

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这种海虫10厘米长,头部50根脊刺8B;@fe+8FU%3mq。这脊刺可以突然闭合,来捕捉比其体型小的洋生物,比如虾C;5tsL5hp@(xx6R-GG

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8月初,科 家将他们的发现表在《当代生物 》期刊上![n#|IQcKZE9fHj*

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这种生物的 名是Capinatator praetermissusf;o!2%~F0v6Pok;。他们说,这种蠕虫生活在5亿年,现在奘活下来的虫类非同upDdv+hAB[5

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名中Capinatator的思是“抓住游泳的它M)w_2KAb!a

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德克(Derek Briggs)是耶鲁2 的科 家,是这次研究忥作的牵头者l!5~KeiaWokJ*+W。他表示,这种蠕虫比今天类似的虫类体型都要2bhEnk5+@D0。今天的箭虫牙齿,但是没有脊刺OeqYhdd1cWFOY^f)|u

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德克表示,这种虫类很可能具备很强的食能2,因它长很多脊刺R.=DcI@jWk~gP

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科 家表示,这种史前虫类的蛛丝马迹很2到,因他们的尸体腐烂的太快Ws_xkC;r7H+Ni-Ws。但这次现的化石保存好,科 家可以据此确猜测这种虫类的形态@QGPbDkSr]h

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研究员能画出这种虫类的细节,并做出它在洋中游动的动图uf[TvhO5kA3Ty[Xj*9

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道格(Doug Erwin)是2盛顿史密斯 会的忥作员Ci_nGD)D-Crgeb0H._EK。他虽然没有2到这次研究中,但他表示,这次的发现将助2科 家好地理解这种虫类和2他远古时期的生物GWRLkHhVQa@]O+7Bg

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Dan Friedell您播报VOA慢速闻=TTi|1z_rMo[aXR

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