饱和酸性电池

VOA慢速英语1500基础单词例句zmore words

a lot of [much or many] We had a lot of rain. carry out [to do; to put into effect] Please carry out the plan. pass a bill [approve] Congress is expected to pass a bill to cut taxes. take steps [to start to do something] The government will take step

发表于:2018-12-01 / 阅读(222) / 评论(0)

VOA慢速英语1500基础单词例句

英国学生科学读本第84期:勤劳的蜜蜂(1)

Lesson 84 The Busy Bee 第84课勤劳的蜜蜂 Have you ever seen a hive of bees? 你有没有看到过蜂箱? Some hives are made with glass sides, through which we can see all that the bees are doing. 有些蜂箱的侧面是玻璃的, 你可以透过

发表于:2018-12-18 / 阅读(106) / 评论(0)

英国学生科学读本

【英音模仿秀】为垃圾DNA正名

模仿文本： That was a headline on September 5th, the end of the concept of junk DNA. Actually, geneticists had long abandoned the idea that our genomes are riven with all the rubbish. But what was once called junk was largely still unexplored. 译

发表于:2018-12-28 / 阅读(180) / 评论(0)

英音模仿秀

新视野大学英语视听说教程 4 Unit 8-2

III. Listening In Task 1: Stem Cell Research Script Gregory: The Republican party in America is opposing stem cell research. I find it hard to believe that in this day and age, someone would do that. Lillian: Stem cell research sounds pretty impressi

发表于:2018-12-29 / 阅读(110) / 评论(0)

新视野大学英语：视听说教程 4

小紫带你轻松学美剧第23期

《绝望主妇》原句： We have to get rid of the car. But we cant sell it. The police might find it, and there could be DNA. 单词词组讲解 Get rid of sth/somebody 摆脱发音讲解 Get rid of 的t吞音，d连读最后翻译: 我们必须把

发表于:2018-12-31 / 阅读(164) / 评论(0)

小紫带你轻松学美剧

知性英语－Acid rain 酸雨

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(338) / 评论(0)

知性英语

Horizon - Life On Mars 火星生命 - 12

But there was something even better. Odyssey may not just have found ice. There may also be liquid water, and that means, there could be living creatures there too. Right now, there might be liquid wa

发表于:2019-01-02 / 阅读(186) / 评论(0)

火星生命

专业术语—口腔生理学术语G2(英文详解)

Glucosamine - a glucose or galactose molecule with an amine group attached. see also glucuronic acid. Glucose - a molecule of great importance to life as it provides a ready source of energy for both

发表于:2019-01-03 / 阅读(170) / 评论(0)

医务英语

万花筒 2013-10-11&10-14 大脚怪真的存在？

Breaking news out of Taxas BigFoot is real according to a group of researchers.They call themselves the Sasquatch genome project and they released what they say is proof several never before seen short video clips of the legendary and very shy creatu

发表于:2019-01-07 / 阅读(159) / 评论(0)

万花筒2013年

SSS 2008-08-07

This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of

发表于:2019-01-08 / 阅读(201) / 评论(0)

Scientific American(八)月

SSS 2008-05-05

This is Scientific American's 60-Second Science, Im Steve Mirsky. Got a minute? Biologists often attempt to construct a genealogy that shows the relationships of all life on earth. One well-accepted effort compares the nucleic acid sequences that cod

发表于:2019-01-08 / 阅读(164) / 评论(0)

Scientific American(五)月

2007年VOA标准英语-Stem Cell Therapy Promising for Type 1 Diabetes

By Carol Pearson Washington 16 April 2007 Watch Diabetes report Type 1 diabetes can affect anyone but it usually starts in people younger than 30. It is a lifelong disease, and there is no cure. But doctors recently tested a stem cell therapy that a

发表于:2019-01-09 / 阅读(188) / 评论(0)

2007年VOA标准英语（四月）

与美国小学生一起学英文第12册第9期:酸

Acid 酸 Why does the lemon taste sour? 为什么柠檬的味道很酸？ It is because of the acid in a lemon. 因为柠檬里有酸。 Then what is acid? 那么什么是酸？ All substances with a sour taste are kinds of acid. 所有带酸味的物质

发表于:2019-01-10 / 阅读(142) / 评论(0)

与美国小学生一起学英文第12册

美国国家公共电台 NPR What Makes A Human Brain Unique? A Newly Discovered Neuron May Be A Clue

DAVID GREENE, HOST: Scientists have taken one more small step toward understanding what makes the human brain unique. As NPR's Jon Hamilton reports, they've identified a type of brain cell that exists in people but not in rodents. JON HAMILTON, BYLIN

发表于:2019-01-17 / 阅读(168) / 评论(0)

2018年NPR美国国家公共电台8月

英语视频-TED演讲：塑造不可思议

建筑设计师们像自然借鉴灵感的创意比比皆是，比如著名的悉尼歌剧院，比如北京奥运会的主场馆鸟巢。可是你想象过，自然界的有丝分裂能带给设计师什么灵感吗？可不是什么长得像DNA一样

发表于:2019-01-18 / 阅读(127) / 评论(0)

名人演讲视频

60秒科学:Amygdala's Acidic Aspiration Answer

Amygdala's Acidic Aspiration Answer A study in the journal Cell shows that the buildup of carbon dioxide when we stop breathing causes a pH change that signals proteins in the brain to force us to inhale. Karen Hopkin reports. Maybe its happened to y

发表于:2019-01-30 / 阅读(256) / 评论(0)

60秒科学

Vitamin C and DNA

67 维生素C能否破坏DNA？ DATE=7-11-01 TITLE=SCIENCE REPORT - Vitamin C and DNA BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(184) / 评论(0)

科技之光

【英音模仿秀】蒙娜丽莎她是谁

模仿文本： The Mona Lisa is gazed at by an average of 6 million people a year. Now scientists think they may have found the final resting place of Leonardo da Vinci's muse for the picture, and they want to open her grave to carry out DNA tests.

发表于:2019-02-16 / 阅读(152) / 评论(0)

英音模仿秀

美语听力 English Cafe 205

Topics: Alcatraz; The Simpsons; using negation with an infinitive; heaven versus heavens; kind of versus sort of versus type of Words: to escape guard jailbreak cover-up cell haunted animated dysfunctional family trouble-maker pacifier merchandise le

发表于:2019-02-23 / 阅读(125) / 评论(0)

美语听力 English Cafe

地道口语：看“绝望主妇”学口语

一条巷子，五户人家，外加八婆和熟女，就组成了全美收视冠军：Desperate Housewives。这部美剧不仅剧情跌宕起伏、帅哥美女遍地，而且还有很多地道的英语表达，我们一起来学习吧! 1. The bank

发表于:2019-03-02 / 阅读(152) / 评论(0)

英语口语

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学英语单词

abundance

Ac flo

acid lipase deficiency