初级精细胞

VOA慢速英语2012 健康报道 - 产生新卵子的新途径

Health Report - A Way to Make New Eggs in Women? 健康报道 - 产生新卵子的新途径 This is the VOA Special English Health Report. 这里是美国之音慢速英语健康报道。 New research could raise hope for women who are having trouble

发表于:2018-12-07 / 阅读(78) / 评论(0)

2012年VOA慢速英语(二)月

SSS 2009-04-13

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The Earths original atmosphere would have been unpleasantdeadly in factto any organisms that breathe oxygen. There wasnt any. Not until about 2.4 billi

发表于:2018-12-24 / 阅读(81) / 评论(0)

Scientific American(四)月

人为什么分成男人和女人?

Why are there males and females? Why are there two sexes instead of three, or twelve, or one? On this Moment of Science we'll learn why two is the magic number. Let's start with why there is sex at all. When two organisms reproduce sexually, sperm an

发表于:2018-12-27 / 阅读(80) / 评论(0)

英语听力广播—Listening

2007-09-06, Coral Reef Erotica 神奇的珊瑚礁

You may think you are gazing upon a sleepy coral reef in the Caribbean Sea, and of course you are. But hiding in plain sight, is a riving teeming hotbed of erotica , that makes a Hollywood hot up party seem like a trip to the dentist. This is a coral

发表于:2018-12-30 / 阅读(163) / 评论(0)

国家地理2007年

万物简史第3期:引言(3)

So thank goodness for atoms. 所以，谢天谢地，有了原子。 But the fact that you have atoms and that they assemble in such a willing manner is only part of what got you here. 不过，有了原子，它们心甘情愿地聚集在一起，这只

发表于:2019-01-01 / 阅读(125) / 评论(0)

万物简史

TED演讲:科技并没有改变爱为什么?(8)

Along with this, we see a rise of a host of beliefs: 不仅如此，各种信仰开始传播： the belief of virginity at marriage, arranged marriages -- strictly arranged marriages 坚信婚前必须保持处女身，包办婚姻（严格安排的婚

发表于:2019-01-03 / 阅读(76) / 评论(0)

TED演讲科技篇

SSS 2008-10-17

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. In 1953 a student named Stanley Miller did an experiment showing that the simple chemicals present on the early Earth could give rise to the basic buildi

发表于:2019-01-08 / 阅读(96) / 评论(0)

Scientific American(十)月

与美国小学生一起学英文第10册第8期:卵细胞

Egg Cells 卵细胞 Do you know what an egg cell is? 你知道什么是卵细胞吗？ An egg cell is necessary for reproduction. 卵细胞是繁殖的必要条件。 Animals have egg cells. 动物有卵细胞。 Then does every animal have egg cells

发表于:2019-01-10 / 阅读(101) / 评论(0)

与美国小学生一起学英文第10册

英语听力文摘 English Digest 26、为什么会有男人和女人？

Why are there males and females? Why are there two sexes instead of three, or twelve, or one? On todayss Moment of Science we'll learn why two is the magic number. Let's start with why there is sex at all. When two organisms reproduce sexually, sperm

发表于:2019-01-26 / 阅读(84) / 评论(0)

英语听力文摘 English Digest

经济学人22:高龄母亲的福音 45岁也能生娃

Science and Technolgy. 科技。 reproduction. 人类繁衍。 Life begins at 45. 45岁也能生娃。 Hope for older mothers. 高龄母亲的福音。 WHEN it comes to reproduction, men have it easy. Almost to the end of their lives most have an amp

发表于:2019-01-26 / 阅读(82) / 评论(0)

经济学人科技系列

经济学人154:爱在潜逃路惊悚小说也催泪

Love on the lam 爱在潜逃路 A rare thing: a deeply moving thriller 奇葩：惊悚小说也催泪 Schroder. By Amity Gaige. 《父亲的罪》作者艾米蒂盖奇 ERIC is the unlikeliest of characters to charm a reader. His life is a tabloid dra

发表于:2019-01-27 / 阅读(64) / 评论(0)

经济学人文艺系列

重归混沌 (The Return to Chaos)

Let us return to original chaos! 让我们重归于元始的混沌！ Let us imagine the primordial din, the original vortex! 让我们臆想那本初的喧嚣、元始的漩涡！ Let us throw ourselves into the whirlwind which has preceded the crea

发表于:2019-02-01 / 阅读(129) / 评论(0)

实用英语

胚胎技术重大突破未来也可人工制造？

近日，《科学》杂志在线报道称，剑桥大学的科学家们通过使用两种干细胞以及一个三维支架，成功地创造出了一个能够自行组装的结构，其发育和构造非常接近自然的小鼠胚胎。科学家的研

发表于:2019-02-01 / 阅读(56) / 评论(0)

阅读空间

Concerns arise over sperm donors

Beijing, Sept. 6 (Xinhua) -- A sperm donation scandal disclosed recently has aroused growing concern in the United States. According to the New York Times' report, Ryan Kramer, the son of a donor, found that he has more than 150 half-siblings - they

发表于:2019-02-04 / 阅读(111) / 评论(0)

英语新闻

Researchers make sperm from stem cell in dish

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(240) / 评论(0)

英语新闻

经济学人220:人类繁衍 45岁也能生娃

Science and technology 科学技术 Human reproduction 人类繁衍 Life begins at 45 45岁也能生娃 Hope for older mothers 高龄母亲的福音 WHEN it comes to reproduction, men have it easy. 讲到繁衍，男人表示压力很小。 Almost to

发表于:2019-02-05 / 阅读(79) / 评论(0)

经济学人科技系列

GRE写作范文：科学的作用

GRE优秀作文：科学的作用。GRE频道小编为同学们整理了GRE优秀作文：科学的作用，供同学们参考使用，希望对同学们的gre 考试有所帮助，下面和小编一起来看看吧：题目： The function of scienc

发表于:2019-02-09 / 阅读(91) / 评论(0)

GRE作文

经济学人:天体物理尘归尘土归土

Astrophysics 天体物理 Dust to dust 尘归尘，土归土 A dramatic recent discovery in physics is looking rather dodgy 近期，物理学中的一项戏剧性发现看上出非常模糊 IN MARCH Chao-Lin Kuo, an astrophysicist at Stanford Univer

发表于:2019-02-16 / 阅读(105) / 评论(0)

经济学人科技系列

将来生孩子不再需要妈妈？

Scientists say early experiments suggest it may one day be possible to make babies without using eggs. 科学家称，早期实验表明，将来某一天或许不需要卵子就能孕育出婴儿。 They have succeeded in creating healthy baby mice

发表于:2019-02-17 / 阅读(87) / 评论(0)

阅读空间

经济学人:基因编辑技术的应用、争议和未来(2)

Nor did the procedure fulfil any unmet medical need. 此程序也未能满足任何未知医疗需求。 For the child whose genome was edited to confer resistance, the claimed benefit is protection from a virus that she may never encounter 对于为产

发表于:2019-02-25 / 阅读(85) / 评论(0)

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