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史上最大”鱼龙化石体积"

作者:liaomeng 时间:2017-09-25 13:52:44 更新时间:2017-12-15

'Sea dragon' fossil is 'largest on record' “史上最大”鱼龙化石体积

文字稿

科学家们称,在德国一所博物馆里“再次现身”的一块水生爬行动物化石具有很高的研究价值,因为它是有史以来同类生物化石中体积最大的一块。这类被称作“鱼龙”的海洋生物曾生活在距今约两亿年前的恐龙时代。这块化石标本总长达三米多,20多年前曾在英格兰海岸边被人首次发现,但直至今日,还没有人对它进行过研究。请听报道。

Ichthyosaursor‘seadragons’weremarinereptilesthatswamtheoceansduringthetimeofthedinosaurs.AfossilunearthedatDonifordBayduringthe1990sisgivingnewinsightsintothelifeanddeathofthemysteriouscreatures.

ThisichthyosaurwasafemalethatwasPgnantatthetimeofdeath.It'soneofonlythreetobefoundwithanunbornbabyinside.Thefossilwassoldtoaprivatecollectorwhokeptitonhislivingroomwall.ItwaseventuallyacquiredbyaGermanmuseumwhereitsscientificvaluecametolight.ScientistsattheUniversityofManchesterwhoexaminedthespecimensayit'sthelargestofitskindatmorethanthreemetreslong.

ThefirstskeletonofanichthyosaurwasdiscoveredinthecliffsnearLymeRegisbytheVictorianfossilhunterMaryAnning.Herdiscoveryshookupthescientificworldandprovidedevidencefornewideasaboutthehistoryoftheearth.

Twocenturieson,there'sstillmoretolearnaboutthePhistoricseacreaturesthatdominatedtheoceansformillionsofyears.

词汇表

ichthyosaurs“鱼龙”的拉丁语说法,一种形似海豚、已经灭绝的海洋爬行动物

marinereptiles海栖爬行动物

unearthed出土,被发掘

givingnewinsightsinto提供新的见解

privatecollector私人收藏家

cametolight为人所知

specimen(化石)标本

skeleton(动物)骨架

shookup使…震惊、大吃一惊

Phistoric史前的

dominated主宰了

测验

请听报道并回答下列问题。

1.Whenandwherewasthefossilunearthed?

2.WhatdidMaryAnning’sdiscoveryofthefirstichthyosaurskeletonmeantoscience?

3.Trueorfalse?Scientistssaythespecimenisthelargestofalldinosaurfossils.

4.Whichwordinthetextmeans‘notyetbroughttobirth’?

答案

1.Whereandwhenwasthefossilunearthed?

ThefossilwasunearthedatDonifordBayduringthe1990s.

2.WhatdidMaryAnning’sdiscoveryofthefirstichthyosaurskeletonmeantoscience?

Herdiscoveryshookupthescientificworldandprovidedevidencefornewideasaboutthehistoryoftheearth.

3.Trueorfalse?Scientistssaythespecimenisthelargestofalldinosaurfossils.

False.Scientistssaythespecimenisthelargestofitskind.

4.Whichwordinthetextmeans‘notyetbroughttobirth’?

Unborn.