感生电流;感应电流

Earth and Sky:Electric Fish 发电鱼

Electric Fish 发电鱼 One way that Harold Zakon and his team find fish to study is to put electrical detectors into the bottom of murky streams in Venezuela. This works because certain fish emit pulses of electricity. Discover electric fish -- on tod

发表于:2018-12-07 / 阅读(120) / 评论(0)

(科普英语)Earth and Sky

VOA慢速英语 2007 1030b

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: Researchers at Ohio State University studied exercise-induced asthma among top athletes at the school. Ohio State football players practice earlier this year.

发表于:2018-12-07 / 阅读(103) / 评论(0)

VOA慢速英语2007年（十）月

Alistair Brownlee 英国铁人三项运动员

Pursue, attempt 追求，尝试 This week we follow the training of the British triathlete team, including Alistair Brownlee. Alistair is the current World Triathlon Champion. The 24-year-old also won the title in 2009 and is one of Britain's best ho

发表于:2018-12-09 / 阅读(159) / 评论(0)

伦敦谈体育

Talking Sport: Ivan Ukhov 伦敦谈体育：俄罗斯跳高运动员

Weakness, obstacle 弱点，障碍 This week we meet Russian athlete, Ivan Ukhov. Ivan is a high jumper and is hoping to compete at this year's Olympic Games. He is the current European Indoor champion and also won the world indoor championship title

发表于:2018-12-09 / 阅读(139) / 评论(0)

伦敦谈体育

王强口语第一册 Short conversation 014

Lesson Fourteen Short Conversations Read aloud the concersation two times, and then listen to the tape without looking at the text. The Pursuit for Punchy Flyers Lucy: Come on, come all to the grand opening of The Electric Palace. You'll find high vo

发表于:2018-12-26 / 阅读(64) / 评论(0)

王强口语第一册

纯正英语一分钟-current events

I love the news and current events. Im addicted to whats happening in the world. It doesnt matter what kind of news it is, I love watching it. Even if its from countries Ive never heard of. Ill even watch the same news programme three or four times a

发表于:2018-12-26 / 阅读(127) / 评论(0)

纯正英语一分钟

Electric Bike Ban in New York Hurts Food Delivery Workers

A ban on electric bicycles in New York City is hurting delivery workers who depend on them to earn a living. Many of the workers are immigrants. Electric bicycles, or e-bikes, have foot-powered pedals like other bicycles. But they also have electric-

发表于:2019-01-03 / 阅读(204) / 评论(0)

2018年VOA慢速英语(二)月

机械类词汇大全-34

1387 、电木 Bakelite 1388 、电玉；醛树脂 ureaformaldehyde(UF) 1389 、电池 cell 1390 、电池组 battery 1391 、电位；电势 electricpotential 1392 、电位计 potentiometer 13

发表于:2019-01-03 / 阅读(113) / 评论(0)

英文名句短语

王强口语第二册 Dictation 019

Lesson Nineteen 听力部分 Dictation: Please prepare your paper and pen. There are really __________ for _____ wine ______-_______________ a good corkscrew, ____, _______________, __________ the ____ of _______. The ______________ that most America

发表于:2019-01-14 / 阅读(154) / 评论(0)

王强口语第二册

旅馆英语对话-Swimming Pool(2)

A: Does this hotel have a pool? B: I'm sorry, sir, we don't have one. However, in our gym, we do have swim stations. A: I'm not sure I understand. B: Think of a deep bathtub that you can swim in, but against a current. A: Cool. What will they think o

发表于:2019-01-15 / 阅读(99) / 评论(0)

英语情景对话-旅馆

售房英语对话-Rejecting a Counteroffer(3)

A: I was wondering if the buyers have accepted my counteroffer. B: Yes, I just faxed you the information an hour ago. The buyers have a counteroffer for you. A: How much did they counteroffer? B: They now are offering to pay ten thousand less than yo

发表于:2019-01-15 / 阅读(115) / 评论(0)

卖房英语情景对话

托福听力分学科词汇（二）

物理学 statics 静力学 motion 运动 inertia 惯性 gravitation 引力 relativity 相对 gravity 地心引力 vibration 震动 medium (media) 媒质 frequency 频率 wavelength 波长 pitch 音高 intensity 强度 echo 回声 resonance 回声，洪

发表于:2019-01-17 / 阅读(102) / 评论(0)

托福英语

TED演讲:我们的大脑是如何交流的?(5)

And we believe that these responses in higher-order areas are induced or become similar across listeners 我们认为，听众这些相似的大脑高层次区块反应， because of the meaning conveyed by the speaker, and not by words or sound. 是由

发表于:2019-01-18 / 阅读(112) / 评论(0)

TED演讲科学篇

VOA标准英语2008年-Tobacco Use Rises Among Women

By Carol Pearson Washington 07 May 2008 The World Health Organization expects the number of women who smoke to triple over the next generation, if current trends continue. As a result, it expects more than 200 million women to die from tobacco induce

发表于:2019-01-19 / 阅读(114) / 评论(0)

VOA标准英语2008年（五月）

微笑的方式-付出,也许无需有所得(2)

Ways to smile 微笑的方式 Give and maybe don't receive. 付出，也许无需有所得 College is a perfect time to get involved in volunteering for a cause. 大学是个为了一个目标参加志愿活动的绝佳时间。 No matter what your p

发表于:2019-01-22 / 阅读(107) / 评论(0)

英语听力广播—Listening

Electric motor made in single molecule

BEIJING, Sept. 6 (Xinhuanet) -- Scientists from Tufts University of the U.S. have created the world's smallest electrical motor in a single molecule. The finding was published in the journal Nature Nanotechnology on Monday. In the research, scientist

发表于:2019-01-30 / 阅读(137) / 评论(0)

英语新闻

60秒科学:Pill May Change Attraction

Pill May Change Attraction In a study in the journal Trends in Ecology and Evolution, researchers note that the birth control pill may change a woman's choice in whom she finds attractive. Cynthia Graber reports Some people like to think theres somet

发表于:2019-01-30 / 阅读(154) / 评论(0)

60秒科学

让人无语的“电脑失忆症”

让人无语的电脑失忆症各种电子设备用久了，我们好像都习惯了打拼音、选汉字。真正要拿笔写字的时候就会出现提笔忘字的情况，有关专家把这种现象叫做电脑失写症。你有电脑失写症吗？

发表于:2019-02-02 / 阅读(128) / 评论(0)

实用英语

Single migrant women face high abortion risk

BEIJING, Sept. 26 (Xinhuanet) -- Young unmarried migrant women are facing a high risk of induced abortions in China and experts urged that they have better access to reproductive health education. Among the 8 to 10 million induced abortions performed

发表于:2019-02-07 / 阅读(109) / 评论(0)

英语新闻

英国发明牙齿治疗新技术

LONDON, June 16 (Xinhua) -- Drillings and fillings at the dentist's are always dreadful and make tooth decay treatment very unpleasant. But British scientists have developed a new approach of fixing tooth decay, which could get rid of all the drillin

发表于:2019-02-18 / 阅读(122) / 评论(0)

英语新闻

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