[化] 液氮冷阱

停止开发Torcetrapib 辉瑞制药暴跌

New York City-based Pfizer Incorporated, the world's largest pharmaceutical company, has stopped research on torcetrapib, a drug they hoped to sell to treat heart disease. The drug was supposed to raise levels of what is known as good cholesterol. T

发表于:2018-11-30 / 阅读(146) / 评论(0)

初级商务英语听力2006

初级英语听力(新版) Lesson 17

初级英语听力(新版) Lesson17 What's the postage on these letters to Thailand, please? I'll have to check. Do you need anything else? Yes. A three pence stamp, please. That'll be eighty-five pence in all. I wish you wouldn't have your TV so lou

发表于:2018-12-01 / 阅读(183) / 评论(0)

初级英语听力新版

2013年ESL之旅行交通购物 03 Driving Through a Speed Trap

Driving Through a Speed Trap Angel: Why are you driving at a snails pace? Georgina: This is an infamous speed trap. I dont want to get a ticket again. Angel: I dont see any squad cars along the road. Are you sure this is the right stretch of road? Ge

发表于:2018-12-03 / 阅读(118) / 评论(0)

2013年ESL之旅行交通购物

13-A Mouse Trap 鼠夹

A mouse looked through a crack in the wall to see the farmer and his wife opening a package; what food might it contain? He was aghast to discover that it was a mouse trap! Retreating to the farmyard, the mouse proclaimed the warning, There is a mous

发表于:2018-12-07 / 阅读(412) / 评论(0)

幸福是一种态度

英国学生科学读本第88期:冷凝(3)

When we change a liquid into vapour, and cool this vapour till it is liquid again, 将水加热成水蒸气, 然后对其进行冷却直至再次液化, we are said to distil the liquid, and the apparatus for doing this is called a still. 这个过程就

发表于:2018-12-18 / 阅读(79) / 评论(0)

英国学生科学读本

SSS 2011-01-25

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. The Chesapeake Bay could get helped by a new antipollution expert: farmed oysters. For decades, the Chesapeake has been plagued by excess nutrients, such

发表于:2018-12-24 / 阅读(96) / 评论(0)

Scientific American(一)月

2008年ESL之就医 12 Getting a Cold

26 Renting an Apartment GLOSSARY apartment manager a person whose job is to take care of problems in an apartment building, collect the rent, and find peopleto live in the building * When our toilet stopped working, we called the apartment manager. v

发表于:2018-12-26 / 阅读(148) / 评论(0)

2008年ESL之就医和人际交往

VOA慢速英语20060228a

AGRICULTURE REPORT - Bird Flu: Composting the Remains of Farm BirdsBy Mario Ritter Broadcast: Tuesday, February 28, 2006 I'm Steve Ember with the VOA Special English Agriculture Report. Farmers usuall

发表于:2019-01-02 / 阅读(89) / 评论(0)

2006年慢速英语（二）月

Preparing for a Walk in Space

Broadcast: June 4, 2003 By Paul Thompson VOICE ONE: This is Ray Freeman. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today, we tell about how astronauts prepa

发表于:2019-01-02 / 阅读(111) / 评论(0)

VOA2003（上）-科技导航

SSS 2008-09-01

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(153) / 评论(0)

Scientific American(九)月

VOA标准英语2011--Fukushima Plant Operator: Nitrogen Pumpi

Fukushima Plant Operator: Nitrogen Pumping Operation Going Well A plan to inject nitrogen into the containment vessel around reactor 1 at the Fukushima Daiichi power plant appears to be working, the plant owner said Thursday. Higher pressure levels h

发表于:2019-01-14 / 阅读(108) / 评论(0)

VOA标准英语2011年(四月)

不用冰用液氮战斗民族的冰桶挑战

The ice bucket challenge may seem cool if you live in a place which is usually quite hot, but for those who dwell in a cold climate the idea is probably less impressive. 冰桶挑战看起来相当酷，但前提是你处在热带地区。而对于那些

发表于:2019-01-16 / 阅读(92) / 评论(0)

英语新闻

托福阅读分析备考面面观

托福考试（TOEFL）是国际上最有影响力，使用最广泛的的英语水平测试之一。托福除了作为美国主流学校入学所需的标准化考试，申请签证和工作的过程中也会有需要托福成绩的机会，所以不少

发表于:2019-01-18 / 阅读(96) / 评论(0)

托福英语

经济学人69:欢迎来到人类纪

The geology of the planet 地球的地质情况 Welcome to the Anthropocene 欢迎来到人类纪 Humans have changed the way the world works. Now they have to change the way they think about it, too 人类改变了世界运行方式，现在，人类不

发表于:2019-01-26 / 阅读(133) / 评论(0)

经济学人综合

白领英语晨读-012 The Popularity Trap in Office　办公室的人气陷阱

Respect versus popularityit is the old conflict between being professional and being personal. We want to do a good job, but we want to be friends with everyone, too. The truth is, you can't always be liked if you do your job properly. And the desir

发表于:2019-02-02 / 阅读(196) / 评论(0)

白领英语晨读

英语博客(A cup of English):Mousetrap

Beginners. We have a mouse in our garage. There might be more than one. The one I have seen is small, grey, and causes a lot of mess. As much as I love animals, I'm afraid we have to put down a mousetrap. My husband bought a box of traps a long time

发表于:2019-02-03 / 阅读(177) / 评论(0)

英语博客 A cup of English

英国学生科学读本第35期:蒸汽往上冒(1)

Lesson 35 Getting up Steam 第35课蒸汽往上冒！ Do you want to know what steam is? Let us get a lump of ice, or a snow-ball, and place it in a saucer in a warm room. It soon melts, and then the saucer is half full of water. If we leave the sau

发表于:2019-02-07 / 阅读(98) / 评论(0)

英国学生科学读本

GRE阅读方法：类比思维

GRE阅读复备考之类比思维。考生在做gre阅读复习过程中也可以运用类比的思维解题。在GRE阅读中绝对不少见，也就是常说的类比题。主要说下述哪一选项所述现象和原文第N行的说法比较相像

发表于:2019-02-17 / 阅读(95) / 评论(0)

GRE英语

英语六级考试必会短语88句(1)

1.Above all：最重要的是，most important of all Above all， theyll have to discover how much nitrogen it possesses since nitrogen is4/5 of the air breathe.（2002-1） 2.Account for：解释。说明 How do you account for the truth？ 3.After

发表于:2019-02-18 / 阅读(77) / 评论(0)

大学四六级阅读

【英语时差8,16】谈谈减肥

Why does blowing on hot soup help to cool it off? Its because of evaporation. Evaporation cools down a liquid because the most energetic molecules leap off the surface and leave the slower-moving molecules behind. Slower-moving means lower temperatur

发表于:2019-03-06 / 阅读(136) / 评论(0)

英语时差8，16

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