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发表于:2018-12-06 / 阅读(50) / 评论(0) 分类 化学秘密.Chemical.Secret

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发表于:2018-12-06 / 阅读(47) / 评论(0) 分类 化学秘密.Chemical.Secret

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发表于:2018-12-06 / 阅读(65) / 评论(0) 分类 化学秘密.Chemical.Secret

S eals? asked Annie. Jack looked at Teddy. Did she say 'change intoseals'? he asked. Indeed! said Teddy. That's what selkies do. Theyare people on land and seals in the sea.You're a seal? Jack asked Kathleen. Sometimes, said the selkie, smiling. Jack

发表于:2018-12-10 / 阅读(54) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

J ack splashed into the blue sunlit sea. He sank tothe bottom and then bobbed back up. He coughed andpushed his hair out of his eyes. Annie was treading water nearby. Hey! she called. Hey! Jack sputtered. I was wrong! You were right! Annie said. Shes

发表于:2018-12-10 / 阅读(129) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

T he four seals paddled with ease through the sunlitwaters of the Selkie Cove and into the Jellyfish Cave. The water in the cave was cold and murky. But in hisseal body, Jack was warm; and with his seal eyes, hecould see clearly. As they swam farther

发表于:2018-12-10 / 阅读(55) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

The seal population just south of Monterey, California, is making life difficult for the surfer population. There have been several incidents in the past month of surfers being bitten or attacked by seals. Scientists think it is merely a result of ov

发表于:2018-12-11 / 阅读(109) / 评论(0) 分类 原版英文小故事

When the Arctic Ocean freezes over in the autumn, polar bears set off in search of their favorite meals: fatty ringed seals and bearded seals. By the summer, the sea ice begins to melt and break apart. Deprived of access to the tasty seals, polar bea

发表于:2018-12-24 / 阅读(85) / 评论(0) 分类 2016年Scientific American(十)月

Polar Bears Must Work Harder On Faster Sea Ice Treadmill奔跑吧!北极熊 Polar bears live on floating rafts of sea ice, hunting for seals. But in the Arctic Ocean north of Alaska, the cold polar wind constantly blows that ice from east to west. Wh

发表于:2018-12-24 / 阅读(79) / 评论(0) 分类 2017年Scientific American(四)月

Climate Change Fires Up Polar Bear Treadmill 气候变化害苦了北极熊 Polar Bears spend most of their time roaming the sea ice in search of seals. And seals spend most of their time underneath that ice, avoiding the top predator. But climate ch

发表于:2018-12-24 / 阅读(56) / 评论(0) 分类 2017年Scientific American(八)月

But he soon wises up. The thick neck absorbs the blows .The delicate brain is cushioned beneath the core of hollow horns. He defends his claim and relocates his harem. But one challenger won't give up so easily. They can crash at nearly 100 km/h. Eve

发表于:2018-12-26 / 阅读(64) / 评论(0) 分类 自然百科2011年

Model 3 What does having a few fish do for you? Philip: Wow! I see youve bought an aquarium. Nice! Peter: You should get one too. I highly recommend it. Philip: Why? What does having a few fish do for you? Peter: I find it relaxing just to sit down a

发表于:2018-12-29 / 阅读(61) / 评论(0) 分类 新视野大学英语:视听说教程 2

THE PRESIDENT: Good afternoon, and welcome. The Medal of Honor is America's highest decoration for military valor. Over the years, many who have received the medal have given their lives in the action that earned it. The name of Petty Officer Michael

发表于:2018-12-30 / 阅读(53) / 评论(0) 分类 美国总统每日发言

Seals Feast at Offshore Wind Farms 海豹群在海上风力发电场享受盛宴 Offshore wind farms are harnessing more than wind.Says study lead author Deborah Russell, with the University of St.Andrews in Scotland,and her colleagues monitored the

发表于:2019-01-14 / 阅读(81) / 评论(0) 分类 VOA标准英语2014年(七月)

By Zulima Palacio Hawaii 11 June 2007 Monk seals are one of the most endangered mammals in the world. In the Caribbean, they already are extinct. Off the African coast of Mauritania, they are down to a few hundred. In the remote northwestern islands

发表于:2019-01-16 / 阅读(164) / 评论(0) 分类 2007年VOA标准英语(六月)

A: What do you think of this one? B: Eh, so so. A: And this one? Too flashy? B: Nah, not too flashy. A: Uhg! And this sweater from my aunt? Isnt it hideous? B: I guess. A: Are you even listening? Im trying to have a conversation with you. B: And Im t

发表于:2019-01-20 / 阅读(40) / 评论(0) 分类 纯正地道美语

They wont be strong enough to challenge for females until they are five years old. Til that day, they will regularly hone their sparring skills. They will stay with the group until they mature. During the long winter chill, Lake Baikal transforms fro

发表于:2019-01-22 / 阅读(61) / 评论(0) 分类 自然百科2011年

By Challiss McDonough Cairo 03 February 2008 Egypt has closed the border with the Gaza Strip, ending 11 days of unrestricted movement for Palestinians. VOA Correspondent Challiss McDonough has more from Cairo. Egyptian security forces used barbed wir

发表于:2019-02-06 / 阅读(51) / 评论(0) 分类 VOA常速英语2008年(二月)

Australian scientists are getting help from elephant seals to build a greater understanding of climate change. The marine mammals carry sensors that transmit data about ocean currents and sea ice. From Sydney, Phil Mercer reports. Elephant seals Sci

发表于:2019-02-12 / 阅读(98) / 评论(0) 分类 VOA标准英语2008年(八月)