涡流假说

[00:04.49]Scientific Attitudes [00:06.97]科学的态度 [00:09.46]Science had its beginning when man started asking questionsabout his environment. [00:14.18]科学起源于人类开始对自身环境产生疑问的时候. [00:18.91]He wondered where the sun went at night an

发表于:2018-12-04 / 阅读(104) / 评论(0) 分类 大学英语自学教程上

(woman) In our lab today, we'll be testing the hypothesis that babied can count as early as five months of age. The six babies here are all less than six months old. You'll be watching them on closed-circuit TV and measuring their responses. The exp

发表于:2018-12-05 / 阅读(119) / 评论(0) 分类 托福听力短文

This is Whats Trending Today When it comes to weather, it is hard to sound more frightening than to call a storm a bomb cyclone. 谈到天气,很难听到什么比炸弹旋风更可怕的了。 But that is how weather experts are describing a huge

发表于:2018-12-08 / 阅读(407) / 评论(0) 分类 2018年VOA慢速英语(一)月

托福阅读的问题,归根结底就是读不懂:文章读不懂,或者问题和选项读不懂。一切所谓的解题技巧也是为了帮助我们读懂,而不是在读不懂文章的基础上仍然能够解题。在一篇700多单词的文

发表于:2018-12-19 / 阅读(96) / 评论(0) 分类 托福英语

不怕伤鸟:无扇叶涡轮风力发电机 Wind turbines are efficient sources of cheap energy but also a source of concern as their huge spinning blades frequently kill birds and bats. A new type of wind generator developed in Spain offers a crea

发表于:2018-12-19 / 阅读(74) / 评论(0) 分类 VOA双语新闻 2015年6月

Idiom: Off the record 非正式的,不记录下来的事 Hit the book: Likelihood Strain Incorporate Well-being Complement Be consistent with Hypothesis

发表于:2018-12-27 / 阅读(112) / 评论(0) 分类 趣味青春英语

人的一生中,将近三分之一的时间是用于睡觉的。刚出生的婴儿几乎每天要睡20个小时;即使成年后,每夭至少要睡 6~7小时。 不管睡眠时间长短如何,睡觉看来是人必不可少的行为。这一点

发表于:2018-12-27 / 阅读(97) / 评论(0) 分类 英语听力广播—Listening

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

发表于:2019-01-08 / 阅读(124) / 评论(0) 分类 Scientific American(五)月

Extreme Cold Freezes Much of United States From VOA Learning English, this is In the News. A weather system known as a polar vortex brought dangerously cold weather to large parts of the United States this week. A polar vortex is a cold, thick low pr

发表于:2019-01-12 / 阅读(112) / 评论(0) 分类 2014年VOA慢速英语(一)月

Bladeless Wind Generator Safe for Birds Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy. But they can also be deadly to birds and bats. The turbines large blades t

发表于:2019-01-12 / 阅读(147) / 评论(0) 分类 2015年VOA慢速英语(七)月

What do a hummingbird, a moth, and a maple tree have in common? They all use a similar trick to fly. Okay, okay, a maple tree doesnt fly. But its seeds kind of do. Maples make those little whirlybird seeds you see spiraling down in droves each sprin

发表于:2019-01-30 / 阅读(214) / 评论(0) 分类 60秒科学

China's national observatory renewed its orange alert for cold wave- the second highest level - on Sunday evening. Sun jun, chief forecaster of the National Meteorological Center, says the strong cold front is linked with the activity of the polar vo

发表于:2019-02-02 / 阅读(104) / 评论(0) 分类 英语新闻

The mascot, Kangkang, debuted on Thursday. It's based on a colored ink prototype painted by well-known Chinese artist Han Meilin. The 80-year-old is the man behind the famous fuwa, the mascots for the Beijing Olympic Games in 2008. For the Spring Fes

发表于:2019-02-05 / 阅读(106) / 评论(0) 分类 英语新闻

Temperatures in Beijing dropped to below minus-10 degrees Celsius on Friday. Forecasters are warning the temperatures are going to hit a 30-year low through this weekend. Yu Bo is the chief forecaster with the Beijing Municipal Meteorological Center.

发表于:2019-02-14 / 阅读(122) / 评论(0) 分类 2016CRI中国国际广播电台

China's national observatory renewed its orange alert for cold wave- the second highest level - on Sunday evening. Sun jun, chief forecaster of the National Meteorological Center, says the strong cold front is linked with the activity of the polar vo

发表于:2019-02-14 / 阅读(118) / 评论(0) 分类 2016CRI中国国际广播电台

A polar vortex, also known as a circumpolar vortex, is a wind current that circulates above the North and South Poles. The currents sit like spinning hats above the Poles. 极地涡旋,又叫环极涡旋,是环绕在南极和北极上空的一股气

发表于:2019-02-16 / 阅读(113) / 评论(0) 分类 英语新闻

Now let's get some of the science behind the cold. What is driving these temperatures and how long is it expected to last. We bring in meteorologist Alex Wilson of US' Weather Channel. As even talking about this unusual cold, something you've been he

发表于:2019-02-18 / 阅读(156) / 评论(0) 分类 CCTV9英语新闻2014年01月

What Is the Polar Vortex? Record cold weather in the United States is forcing schools and businesses to close. The polar vortex, as it is called, has also canceled flights and suspended mail delivery. The temperature in Fargo, North Dakota, dropped t

发表于:2019-02-18 / 阅读(108) / 评论(0) 分类 2019年VOA慢速英语(二)月

When a prospective employer makes unreasonable demands on you before things start to get serious, it's a strong signal to hit the road. 当一位未来雇主在工作还没正式之前就提出了无理要求,那么明显说明你需要跑路了。

发表于:2019-02-21 / 阅读(174) / 评论(0) 分类 实用英语

在托福阅读备考过程中,没有一点心机是不行的!我们在选资料,练真题,解题等方面都要有方法有技巧的进行,以下是小编这个心机girl给大家推荐的几点心机秘籍,助力大家早日取得托福阅

发表于:2019-03-04 / 阅读(154) / 评论(0) 分类 托福英语
学英语单词
access circuit
acosts
analogue equipment
at this season
beach conger
betless
bite one's lip
brachiolaria
brass-plated mild steel round head machine screw
budget component
byelaya tserkov (belaya tserkov)
caernarfon castle
center well
chargeablest
chelate substance
chrysographes
Cladopyxidaceae
clay-cutter dredge
closest packing
common-mode input
deep inelastic transfer
disbursements from fund
dog hole
English partridge
equipment trust certificates
Euonymus carnosus
fault state
flaky particle
following grouting
foreign car
fourth -generation language
gammacoronaviruses
garigue
government employment
grader
gravida iis
green goodss
grownest
Helleborus foetidus
human rights legislation
ice bucket
ionic hydride
iron safe clause
kyle
lamina medullaris
last channel
lift distribution
linearized equation
locomotive regulator
macrodactylia
macrodon
mountain ebony
mujia
multiple factors method
mutilus nodulosus
n.r.l
narrow bandline
Newton's second law
nicolettes
non-optimum network
nussey
OLIGOTIMIDAE
on a computer
ops-con
Pai's culture-medium
palatalise
paramudras
pathologenic biological factor
patrol commander
phyllophor
pinky swears
poges
pyromagnetic
quad bilateral switch
radioactivity simulator
ramosissimus
Rastafarian
reinforced carbon-carbon
resting contact
right above face
roizman
Sandovo
savoys
scanning microwave spectrometer
second-rate
she-bop
single purchase
special subdivision
spelled waler
stabilizing measure
syphilization
Taurus Mountains
tetrapanax papyriferus
thoracic thymus
timed ticket
two-fold division
unfunky
valve rocker cover
vitamin a powder
voyages
Walhalla
warning siren