The possibility of cloning fierce and extinct wild animals has always excited film makers. And they are not the only ones! The popularity of films such as Jurassic Park, in which a scientist clones several kinds of extinct dinosaurs, proves how the i

发表于:2018-12-12 / 阅读(153) / 评论(0) 分类 高中英语示范课

Frank Deford: It is well-known that hunting is one of our most popular participant sports. So what species of animal do you think hunters are looking for these days? The answer is, human-beings. No, hunters are not actually trying to bag homo sapien

发表于:2018-12-17 / 阅读(144) / 评论(0) 分类 2006年NPR美国国家公共电台

The World Wildlife Fund, an international conservation group, says more than two-thirds of the world's wildlife could be gone by the year 2020. The organization says there's already been a 58 percent decrease in the number of fish, mammals, birds and

发表于:2018-12-19 / 阅读(54) / 评论(0) 分类 CNN美国有线新闻2016年11月

Karla: You look like youve had a shock. Chris: Yeah, that phone call threw me for a loop. My ex-girlfriend is pregnant and she wants me to take a paternity test. Karla: Wow, thats quite a bombshell. Are you going to do it? Chris: Of course. If the ba

发表于:2019-01-01 / 阅读(51) / 评论(0) 分类 地道美语播客

Coextinction 绝种是指生物群体逐渐消失的过程。物种和较大族群常态性的灭绝,并由更进步的形式所取代,这是进化的正常过程。然而,从化石的记录来看,有时会出现整个科目的动物和植物都

发表于:2019-03-09 / 阅读(109) / 评论(0) 分类 英语听力文摘 English Digest