标签：Stem 相关文章

美语听力 English Café 457

Topics: Famous Songs Mack the Knife; Monument Valley and the Valley of the Gods; stem versus stalk versus shoot; using ones middle name as ones first name; indeed Words: gangster moritat up-tempo jackknife billow to ooze cement serial killer reservat

发表于:2018-11-30 / 阅读(108) / 评论(0) 分类 美语听力 English Cafe

听一分钟英文：Roses-玫瑰

Roses are my favourite flower. They are the perfect flower beautiful in every way. I love the shape of roses and their beautiful colours. Looking at them is like looking at a wonder of nature. The colours are so deep and pure. A white rose is the whi

发表于:2018-12-04 / 阅读(52) / 评论(0) 分类 听一分钟英文-R

万花筒 2008-05-15&-05-16

on board a ship,really could be an evil, that's a stem damage, maybe from a broken window, on this case, we've hit some rocks, what we need to try to do is down the flow of water, so that it's slower coming in that while we can pump or well them out.

发表于:2018-12-11 / 阅读(45) / 评论(0) 分类 万花筒2008年

VOA慢速英语2016--10000个女孩探索科学事业

AS IT IS 2016-05-23 10,000 Girls Explore Science Careers 10000个女孩探索科学事业 A science museum in Denver, Colorado is working to increase the number of American girls who grow up to be scientists. The Denver Museum of Nature and Science r

发表于:2018-12-16 / 阅读(46) / 评论(0) 分类 2016年VOA慢速英语(五)月

【英语时差8,16】用普通人的细胞制造干细胞

Making Stem Cells From Ordinary Adult Cells Most cells in our bodies are unipotent, that is they stay the same throughout their lives. For example, once a skin cell, always a skin cellthey never start turning into brain cells. The exception is stem c

发表于:2018-12-27 / 阅读(55) / 评论(0) 分类 英语时差8，16

4-12 克隆创造人类胚胎

Cloning 1 Creates Human Embryos Scientists in South Korea and America report that they have created human embryos through cloning and extracted embryonic 2 stem cells 3 , the universal cells that hold

发表于:2018-12-30 / 阅读(68) / 评论(0) 分类 英语沙龙2004全年合辑上

100个儿童英语小故事: The Happy Family 幸福的家庭

031 The Happy Family There was a butterbur leaf in a country of the south. A lot of butterbur trees with big leaves looked very nice. A snail was living on a back of a butterbur leaf. The snail ate the butterbur leaves and lived peacefully moving fro

发表于:2018-12-31 / 阅读(206) / 评论(0) 分类 100个儿童英语小故事

英伦广角 激光可帮助啮齿类动物受损的牙齿再次生长

Ouch! About a quarter of all school-age kids will break or otherwise damage a tooth. Adults have their share of cracked chompers too. But what if fixing a busted bicuspid was as easy as zapping it with a laser? Preliminary work with young rats has mo

发表于:2019-01-02 / 阅读(95) / 评论(0) 分类 英伦广角

CNN 2009-03-10

Hi, there, it is so good to see you today, from the CNN Center in Atlanta, I'm Virginia Cha. I wanna thank you for joining us, here is a look at what's happening NOW IN THE NEWS. By executive order, President Obama is expected to end restrictions on

发表于:2019-01-07 / 阅读(75) / 评论(0) 分类 CNN2009年(三)月

CNN 2009-03-08

Hi, everyone, Im Asieh Namdar at the CNN.com newsroom in Atlanta. Here is a look at whats happening NOW IN THE NEWS. 3.3 million jobs have been cut over the last 6 months. Thats after the latest round of unemployment numbers which show 651,000 peopl

发表于:2019-01-07 / 阅读(75) / 评论(0) 分类 CNN2009年(三)月

AP美联社一分钟新闻 2008-09-09

1 Florida authorities have let an evacuation order for the Florida Keys expire. Forecasters say it is still too early to tell where the storm is headed. Gulf Coast officials are watching Ike's path, which is projected to head into the central Gulf t

发表于:2019-01-11 / 阅读(142) / 评论(0) 分类 美联社新闻一分钟2008年(九)月

妇女接受干细胞移植手术治愈糖尿病

Woman Not Diabetic After Cell Transplant 妇女接受干细胞移植手术治愈糖尿病 A diabetic woman no longer needs to take daily medicine after she received a stem cell transplant. The daily insulin injection had helped control the amount of

发表于:2019-01-12 / 阅读(83) / 评论(0) 分类 2015年VOA慢速英语(九)月

英国学生科学读本 第56期:黄色的报春花(1)

Lesson 56 The Yellow Primrose 黄色的报春花 Spring time has come, and the April showers have brought the yellow primroses in thousands to bloom in our woods and lanes, and on our banks and meadows. 春天来了，四月的绵绵细雨，让成千上

发表于:2019-01-17 / 阅读(58) / 评论(0) 分类 英国学生科学读本

聪明人-花费大量时间学习各种知识(1)

Are you intelligent？ 你够聪明吗？ Intelligent people spend considerabletime educating themselves in various topics. 聪明人花费大量时间学习各种知识。 Being intelligent is high maintenance.Among other factors it is also somethin

发表于:2019-01-23 / 阅读(54) / 评论(0) 分类 英语听力广播—Listening

【英语2级听力】新与旧-New and Old

Tomorrow is the first day of school. Barbara looks at her backpack. It has holes. It is dirty. She needs a new one. Her mom takes her shopping. There are so many backpacks. One backpack has yellow stars. Another one has rainbow stripes. Another one h

发表于:2019-01-24 / 阅读(59) / 评论(0) 分类 英语第2级听力-English Level 2

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(56) / 评论(0) 分类 经济学人科技系列

英国学生科学读本 第34期:大麦(1)

Lesson 34 Barley 第34课 大麦 I know some children who are very fond of growing seeds of all kinds in pots. Sometimes they fill a flower-pot rather more than half-full with moist sand. On the top of this damp sand they sprinkle some grains of barl

发表于:2019-02-13 / 阅读(60) / 评论(0) 分类 英国学生科学读本

美国语文第五册 第188期:威廉-泰尔(13)

With constancy so modest. 他一直那么谦卑。 I was sure he would. 是的，我相信。 And looks with such relying love And reverence upon you. 看起来，对你那么依恋，那么景仰崇敬你。 Man! Man! Man! No more! Already I'm too m

发表于:2019-02-13 / 阅读(44) / 评论(0) 分类 美国语文第五册

留美老师带你每日说英文 第970期:防御性设计是什么

They are designed to allow you to sit but not get too cozy. And that is intentional. The concept stems from a school of thought that goes by many names, but today we'll use defensive design. 这些椅子是设计成能让你坐，但坐起来又不太舒

发表于:2019-02-14 / 阅读(55) / 评论(0) 分类 留美老师带你每日说英文

你够聪明吗-聪明需要高强度的维护(1)

Are you clever enough? 你够聪明吗？ Being intelligent is high maintenance. 聪明需要高强度的维护。 Among other factors it is also something that is acquired and involves hard work. An intelligent person is able to talk about just abou

发表于:2019-03-06 / 阅读(102) / 评论(0) 分类 英语听力广播—Listening
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