音标：[k'rəʊməsəʊmz] ；

n. <生>染色体( chromosome的复数形式 )

n. a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order

SSS 2011-12-27

This is Scientific American's sixty seconds science, I'm Steve Mirsky. Got a minute? The eastern green tree frog looks exactly like the close related cops gree tree frog, the big difference between the two species is beneath the surface. The eastern

发表于:2018-12-02 / 阅读(428) / 评论(0)

Scientific American(十二)月

TED演讲:我们能够避免老化(6)

This list is just for illustration; it is incomplete. 这个列表仅仅是一个例子，它是不完整的。 The list on the right is also incomplete. 右边的列表也一样不完整。 It's a list of types of pathology that are age-related, 它们

发表于:2018-12-05 / 阅读(390) / 评论(0)

TED演讲科学篇

听电影学英语-姐姐的守护者 03

[00:03.04]Could just be a lab error. 也有可能仅仅是实验事故 [00:08.60]SARA: Oncology? 肿瘤科？ [00:09.48]But that's cancer. 那是癌症啊 [00:16.24]WOMAN: Mr. and Mrs. Fitzgerald? 是Fitzgerald夫妇吗? [00:18.96]l'm Ileana Farquad.

发表于:2018-12-07 / 阅读(469) / 评论(0)

听电影学英语-姐姐的守护者

SSS 2008-05-21

This is scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? The yeast Candida albicans ekes out a quiet living in our gut. But its a tough life. It faces acids and enzymes, and the immune system always bullies invaders.

发表于:2018-12-24 / 阅读(417) / 评论(0)

Scientific American(五)月

SSS 2008-06-30

This is Scientific American's 60-Second Science, I am Steve Mirsky,Got a minute? A team of Finnish and American geneticists has found that that, for some people at least, music is in their genes. In what the researchers called the first study of its

发表于:2018-12-24 / 阅读(342) / 评论(0)

Scientific American(六)月

SSS 2008-01-30

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Every expecting mother gets asked the question: boy or girl? For mammals like us, its an easy call. Two X chromosomes you get pink booties. X and a Y you g

发表于:2018-12-24 / 阅读(484) / 评论(0)

Scientific American(一)月

【一起听英语】男女比例会失衡吗

今天文章讲的是男性基因染色体的问题，如果男性染色体正发生着变化，会造成地球上男女比例失衡吗？ Neil: Hello and welcome to Six-Minute English from BBC Learning English, I'm Neil and with me today is Rosie. R

发表于:2018-12-27 / 阅读(348) / 评论(0)

一起听英语

英语课程计划-World Down Syndrome Day

World Down Syndrome Day is on March the 21st every year. It is on this day because the number 21 is important in the identification of Down Syndrome. The condition is created by a 21st, extra chromosome being replicated three times, thus causing the

发表于:2018-12-29 / 阅读(549) / 评论(0)

英语课程学习计划和讲义

VOA慢速英语2017 科学家构建经过重新设计的生命形式

For thousands of years, humans have used yeast for making bread and alcoholic drinks, such as beer. But scientists are now constructing synthetic yeast that can do more than make a sandwich or a drink. The synthetic yeast can be used for medicines, v

发表于:2019-01-02 / 阅读(530) / 评论(0)

2017年VOA慢速英语(八)月

The extinction of men

Neil: Hello and welcome to Six-Minute English from BBC Learning English, I'm Neil and with me today is Rosie. Rosie: Hi there. Neil: Well, today we're talking about men. Rosie: That sounds interesting. Neil: It is very interesting especially if you'r

发表于:2019-01-07 / 阅读(468) / 评论(0)

六分钟英语

SSS 2009-10-05

The 2009 Nobel Prize in physiology or medicine goes to Harvards Jack Szostak, Johns Hopkinss Carol Greider and Elizabeth Blackburn at U.C. San Francisco for their work on how chromosomes are protected by telomeres and the enzyme telomerase. The Nobel

发表于:2019-01-08 / 阅读(451) / 评论(0)

Scientific American(十)月

SSS 2009-06-05

This is Scientific American's 60-second Science. I'm Karen Hopkin, this will just take a minute. When it comes to lizards' sex, size dose matter. But not in the way you might think. Because in the June 4th online issue of Journal Current Biology, sci

发表于:2019-01-08 / 阅读(423) / 评论(0)

Scientific American(六)月

SSS 2011-03-04

Every villain has his Achilles' heel. And microscopic scoundrels are no exception. The challenge for those who wish to ward off microbial bad guys is to identify that weak spot. Now, scientists studying the toxoplasmosis parasite think they've done j

发表于:2019-01-08 / 阅读(467) / 评论(0)

Scientific American(三)月

VOA慢速英语2012 PEOPLE IN AMERICA - Barbara McClintock, 1902-1992: She Made Discoveries about Genes and Chromosomes

PEOPLE IN AMERICA - Barbara McClintock, 1902-1992: She Made Discoveries about Genes and Chromosomes CHRISTOPHER CRUISE: This is PEOPLE IN AMERICA in VOA Special English. Today, Jim Tedder and Shirley Griffith tell about Barbara McClintock. She was on

发表于:2019-01-12 / 阅读(434) / 评论(0)

2012年VOA慢速英语(六)月

经济学人88:压力和老化一个态度问题

Science and Technology Stress and ageing A question of attitude 科技压力和老化一个态度问题 The link between chronic stress and a marker of old age is being disentangled 科学家发现了长期压力与一个衰老标志间的联系 TE

发表于:2019-01-26 / 阅读(410) / 评论(0)

经济学人科技系列

Scientists solve mystery over copycat butterflies

CANBERRA, Aug. 17 (Xinhua) -- Australian scientist on Wednesday said his international research team has discovered the trick on how butterfly learn to change its wing pattern to avoid being eaten by birds. The Amazonian butterfly, Heliconius numata,

发表于:2019-02-06 / 阅读(406) / 评论(0)

英语新闻

“雪糕香蕉”带你进入香蕉的奇妙世界

Like its name suggests, the ice cream banana is sweet with undeniable hints of vanilla and its skin even appears frosted, starting out as a bluish-green color before it ripens. 看名字就知道，雪糕香蕉应该是很甜的，绝对会散发淡淡

发表于:2019-02-06 / 阅读(441) / 评论(0)

阅读空间

科学家最新发现长痘痘的人老得慢!

If your teenage son or daughter is blighted by acne, they can take heart. 如果你那处在青春期的儿子女儿正饱受粉刺痤疮的摧残，那么是时候振作起来了。 For while they may feel greasy and unattractive at the moment, by m

发表于:2019-02-18 / 阅读(410) / 评论(0)

趣味英语

雅思阅读动植物类真题：塔斯马尼亚虎

雅思阅读动植物类真题：Tasmanian tiger Extinction Is Forever?(塔斯马尼亚虎) Tasmanian tiger Extinction Is Forever?Danger, says the sign on the doorof a laboratory at the Australian Museum in Sydney: Tasmanian Tiger,Trespassers will be

发表于:2019-02-25 / 阅读(593) / 评论(0)

雅思英语

英语歌曲:布鲁斯 Tech N9NE - Leave Me Alone

饶舌:Tech N9NE - Leave Me Alone 相关介绍：2008年9月是Tech N9NE事业的一个里程碑，他的双CD专辑《Killer》突破100万张的销售记录。2009年4月7日，Rock The Bells 2009 Festival邀请他来做演出，今年10月的最新

发表于:2019-03-02 / 阅读(688) / 评论(0)

节奏布鲁斯

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

ac2

aerodynamic phenomenon