标签：哺乳动物 相关文章
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背诵为王第二册
Whales are absolutely beautiful creatures. It's amazing to think how big they are. But I guess they're a tiny dot when they're in the ocean. I think whales are among the most interesting animals on Earth. Are they animals or fish? I know they are mam
听一分钟英文-W
The biggest and strongest animal on land is the elephant. The largest and heaviest animal in the sea is the whale. It's also the biggest eater in the world. It eats a ton of food a day. It looks like
赖世雄初级美国英语
AS IT IS 2016-04-30 Bison: America's New National Mammal? 美国最新国家级哺乳动物：美洲野牛 This is Whats Trending Today. 以下是今日新鲜事。 The bald eagle is the only national animal of the United States. 秃鹰是美国唯一的
2016年VOA慢速英语(五)月
Marine Animals Have Interesting Sleeping Habits 海洋生物有趣的睡觉习惯 Many people know that marine mammals, like whales, porpoises and dolphins, breathe air, like we do. But, many people dont know that marine mammals have developed some i
初学者听力文摘精选
bark, [bɑ:k] n 树皮（可用于制革或入药）；v 狗吠（cry of a dog）； 【例】The bark can be used as medicine 树皮可以作药材。Dogs always bark at strangers 狗总是对着陌生人叫。 【类】epidermis:mammal＝bark:conif
不择手段背单词
Science and technology. 科技。 Flu research. 流感研究。 How to make bird flu fly, part one. 让禽流感飞起来，第一部分。 The first of two controversial research papers is published. 充满争议的两篇研究论文的其中之一已
经济学人科技系列
It was eight o'clock in the morning. We had four hours to ourselves before the sun could be productively observed. 时间是早晨八点。太阳可以供我们观察利用的时间只剩下四小时了。 I guided our steps toward a huge bay that ma
《海底两万里》中英双语有声读物
伍兹霍尔的彼得.泰克探讨了海洋中一个隐藏的奇迹：水下声音。蓝色使命的华章，他解释了鲸用声音和歌声在海洋中跨越数百公里进行沟通的令人惊异的方式。
TED公开课:潜入深渊
两亿多年前，我们的祖先哺乳动物发展了一种新的大脑功能：大脑皮层。这邮票大小的一块组织（缠绕着一个核桃大小的区块）便是人类之所以成为人类的关键。现在，未来学家雷‧库日韦尔
TED公开课:头脑游戏
Mammals 哺乳动物 What animals can produce milk for their babies? Mammals. 什么动物能为它们的宝宝产奶?哺乳动物。 Dogs, pigs, elephants, lions, dolphins and bats are examples of mammals. 猪，狗，大象，狮子，海豚和蝙蝠
与美国小学生一起学英文第8册
哺乳动物 脑部越大 嗅觉越灵？ Researchers used computed tomography or CT scans to analyze the skulls of 190-million-year-old mammals found in a Jurassic-era fossil bed in China. These tiny critters, co-existed with thegiant, meat-eating d
VOA标准英语2016年(七月)
Pangolins Are Most Trafficked Mammal 穿山甲因被贩卖已成世界上最濒危的哺乳动物 Have you ever heard of a pangolin? A lot of people havent. Its also known as a scaly anteater. Conservation groups say its the worlds most illegally tra
VOA标准英语2015年(七月)
[00:04.83]Lesson 13 [00:08.64]1.Learn to say [00:12.79]I'm going to talk about six types of animals. [00:16.34]我要说一说六种动物. [00:17.67]The first type-mammals.第一种--哺乳动物. [00:21.11]People are mammals.人类就是哺乳动物
闽教版小学英语六年级下
Then a strange thing happened. 这时，一件神秘的事情发生了。 All the gigantic reptiles died within a short time. 所有这些庞大的爬行动物在短时间内悉数灭绝。 We do not know the reason. 我们不知道其中的原因。
美国学生人类历史
An end to grey hair and crows-feet could be just 10 years away after scientists showed 科学家发现，动物的衰老过程有可能逆转。 it is possible to reverse ageing in animals. 从此以后，可能仅需10年，人类就可以告别白发
趣味英语
Indeed, with the world dark and hostile, it was a perfect time to be small, warm-blooded, nocturnal, flexible in diet, and cautious by nature, 当世界一片滚黑、布满危险的时候，对于出没于夜间、不挑食物、生性谨慎的小恒温
万物简史
H1N1的预防英语对话 H1N1是一种病毒，是Orthomyxoviridae系列的一种病毒。它的宿主是鸟类和一些哺乳动物。几乎所有甲型的H1N1病毒已被隔离，野生鸟类出现疾病属罕见。有些H1N1病毒引起严重的疾
实用英语
Marine Mammals Since there is such an abundance of food in the sea,it is understandable that some of the efficient, highly adaptable, warm-blooded mammals that evolved on land should have returned to the sea.Those that did have flourished. Within abo
双语有声阅读
共鸣、合作、公平和互惠关心别人的幸福似乎很像人类的特征。但是，弗兰斯德瓦尔给我们展示一些令人惊讶的行为测试录像，是有关灵长类动物和别的哺乳动物的，看看有多少道德特征，是
TED演讲视频集