手机APP下载

您现在的位置: 首页 > 英语听力 > 英语视频听力 > 纪录片 > 《恐龙灭绝真相》纪录片 > 正文

BBC纪录片地平线《恐龙灭绝真相》第28期:灭绝事件

来源:可可英语 编辑:max   可可英语APP下载 |  可可官方微信:ikekenet
  


扫描二维码进行跟读打分训练

Six million years prior to the KT boundary, there were about twenty species of ammonites in the world's oceans.

第三纪界线前600万年,全球海洋中大约有20种菊石。
Three million years before the KT boundary, there were only fifteen or so
第三纪界线前300万年则是15种左右,
and one million years prior to the KT boundary we have less than half of what we started out with,
到了第三纪界线前100万年,只剩下不到最初的一半,
we have less than ten species, so the extinction event has already been going on for millions of years.
也就是不到10种菊石,这种渐渐消失的情况几百万年来一直都在持续。

BBC纪录片地平线《恐龙灭绝真相》

The amazing thing is that we see the same pattern in the fish record,

令人吃惊的是同样的情况也发生在鱼类记录中,
we see the same pattern in the terrestrial reptile record, we even see the same pattern in the mammal record.
同样发生在陆生爬行类记录中,甚至同样发生在哺乳动物记录中。
All of these groups were undergoing an extinction event for millions of years
所有这些物种几百万年来都在经历灭绝事件,
and it would be absolutely amazing to me if dinosaurs weren't undergoing the same sort of extinction
如果恐龙没有经历同样的灭绝,我肯定会感到奇怪,
and indeed I think they were undergoing the same sort of long term extinction.
我确实认为它们同样经历了这种长期衰亡。

重点单词   查看全部解释    
prior ['praiə]

想一想再看

adj. 优先的,更重要的,在前的
adv.

 
species ['spi:ʃiz]

想一想再看

n. (单复同)物种,种类

 
extinction [iks'tiŋkʃən]

想一想再看

n. 消失,消减,废止

联想记忆
mammal ['mæməl]

想一想再看

n. 哺乳动物

联想记忆
absolutely ['æbsəlu:tli]

想一想再看

adv. 绝对地,完全地;独立地

 
pattern ['pætən]

想一想再看

n. 图案,式样,典范,模式,型
v. 以图案

 
boundary ['baundri]

想一想再看

n. 分界线,边界

 
terrestrial [ti'restriəl]

想一想再看

n. 地球上的人 adj. 地球的,地上的

联想记忆

发布评论我来说2句

    最新文章

    可可英语官方微信(微信号:ikekenet)

    每天向大家推送短小精悍的英语学习资料.

    添加方式1.扫描上方可可官方微信二维码。
    添加方式2.搜索微信号ikekenet添加即可。