视上交叉核 {sing. suprachiasmatic nucleus;SCN}, 上视束交叉核

[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:03.81]1999 Passage4 [00:07.51]When a Scottish research team startled the world [00:10.54]by revealing 3 months ago [00:12.61]that it had cloned an adult sheep, [00:14.94]President Clinton move

发表于:2018-12-01 / 阅读(330) / 评论(0) 分类 历年考研英语阅读理解

I'm sure that, throughout the hundred-thousand-odd years of our species' existence, and even before, 我十分确信在人类诞生以来的大概10万多年,甚至比这更长的时间里 our ancestors looked up at the night sky, and wondered what

发表于:2018-12-05 / 阅读(78) / 评论(0) 分类 TED演讲国际问题篇

As they grow bigger and bigger, 随着体积越来越大 they start to spin and throw out a disk of debris 它们开始旋转,甩出的碎屑形成盘状 that will coalesce to form a solar system. 在日后融合形成太阳系 This kind of process

发表于:2018-12-07 / 阅读(123) / 评论(0) 分类 太阳科普

OK, one more thing, if I can even get more bizarre. 另外还有一件事是更难以想象的 Since virtually all the mass of an atom is in the nucleus 既然事实是原子的全部质量集中在原子核, now, there is some amount of mass in th

发表于:2018-12-08 / 阅读(98) / 评论(0) 分类 TED演讲教育篇

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-12 / 阅读(104) / 评论(0) 分类 英语小短文

Looking Into Your Brain Just Became Easier Researchers and engineers keep improving the machines that help doctors better understand and diagnose conditions that affect our brains. One of the goals is to find causes of Alzheimers and Parkinsons disea

发表于:2018-12-16 / 阅读(76) / 评论(0) 分类 VOA标准英语2016年(六月)

Information Overload By Robert S. Boyd Knight Ridder Newspapers. Distributed by Tribune Media Services International. Are you overwhelmed by the amount of information these days? 1 Ever feel overwhelm

发表于:2018-12-19 / 阅读(104) / 评论(0) 分类 彭蒙惠英语

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Athletes have obviously been tempted to use performance enhancing anabolic steroids. Drug testing may discourage such use. But a new study finds that some of the perfo

发表于:2018-12-24 / 阅读(95) / 评论(0) 分类 Scientific American(九)月

Why are there males and females? Why are there two sexes instead of three, or twelve, or one? On this Moment of Science we'll learn why two is the magic number. Let's start with why there is sex at all. When two organisms reproduce sexually, sperm an

发表于:2018-12-27 / 阅读(65) / 评论(0) 分类 英语听力广播—Listening

Science and Technolgy. 科技。 Modern alchemy. 现代炼金术。 Turning a line. 进入新的一行。 The race to extend the periodic table continues. 扩展元素周期表的比赛仍在继续。 ONE of the first inklings that chemistry has an u

发表于:2018-12-31 / 阅读(126) / 评论(0) 分类 经济学人科技系列

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(115) / 评论(0) 分类 Scientific American(八)月

The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-01-08 / 阅读(137) / 评论(0) 分类 英语小短文

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(84) / 评论(0) 分类 经济学人科技系列

Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur

发表于:2019-02-05 / 阅读(114) / 评论(0) 分类 托福英语

ATHENS, Feb. 4 (Xinhua) -- Greek Finance Minister Yannis Stournaras received a bullet in the post, Greek media reported on Monday. Stournaras' aides alerted security forces, when they opened the envelope at his office and discovered the enclosed bull

发表于:2019-02-06 / 阅读(107) / 评论(0) 分类 英语新闻

Anyway, getting sick is a sensible response to infection. 生病正是对感染的一种能感觉到的反应。 Sick people retire to their beds and thus are less of a threat to the wider community. 病人躺在病床上,因此减少了对更多人的

发表于:2019-02-17 / 阅读(57) / 评论(0) 分类 万物简史

Particles can come into being and be gone again in as little as 0.000000000000000000000001 second (10-24). Even the most sluggish of unstable particles hang around for no more than 0.0000001 second (10-7). 粒子可以在短达0.000 000 000 000 000 0

发表于:2019-02-17 / 阅读(72) / 评论(0) 分类 万物简史

CERN, the European Organization for Nuclear Research, is like a little city. Straddling the border of France and Switzerland, it employs three thousand people and occupies a site that is measured in square miles. CERN boasts a string of magnets that

发表于:2019-02-17 / 阅读(71) / 评论(0) 分类 万物简史

Meanwhile the tireless Rutherford, now back at Cambridge as J. J. Thomson's successor as head of the Cavendish Laboratory, came up with a model that explained why the nuclei didn't blow up. He saw that they must be offset by some type of neutralizing

发表于:2019-02-17 / 阅读(90) / 评论(0) 分类 万物简史

The Source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-02-25 / 阅读(76) / 评论(0) 分类 双语有声阅读
学英语单词
air-fuel ratio
anacobra
angle measuring instrument
anteriolateral cordotomy
asayita (asaita)
available water supply
Berdaale
boiler plate bending machine
bonehead
bubble memory movement
climbest
cooperative joint venture
cuoco
Cyanidin-3-rutinoside
Dermocarpaceae
Devil's Gorge
didacticity
diesel-powered truck
digestive canal
digital differential analyser
dinotefuran
double-armed
drinkin
dune fixation afforestation
elephantine books
elevated shore line
enrichment meter
epiclast
Epstein apparatus
filipek
find fault in
floating reclaim
forced landings
fuel mixture indicator
gearbox output
Geisel
germany (deutschland)
gin guzzling
Girod furnace
glycinecin
goods turning rack
gouging electrode
Grodziczno
gumen
hermanniella punctulata
hierarchical directory structure
hyaline hyalin
hydraulic shearing device
i-thowen
insufficient disclosure
iron-coke ration
Kings Canyon National Park
laughing gas
linear inversion
lost chains
Manifold, C.
maximum and minimum
merchant seaman
metallized foils
MMULV-RT
motor tester
nearshored
Newhouses
non-radioactive liquid
pay for illness leave
pedestrian mall
pfui
prepurchasing
received and forwarded
relatively invariant measure
right ear
rookling
s-plane of stratigicat
seer hand
shoe repairer
sin-binneds
single-step switch
sosebee
sparsistent
species epithet
standardized function
stanyer
Stone Park
t-shaped complex
telesca
the Sally Army
total design concept
true colour unit
underapplies
uniformly elliptic equation
utilities system
variable phase shifter
vasilieva
vertical transportable retort
violent relaxation
viscoplastic fluid
vranov
waste bunker
when in Rome
whip snakes
YNK