旋声性

发表于:2018-12-11 / 阅读(173) / 评论(0) 分类 VOA标准英语2014年(三月)

When Pablo Panda Sandoval made history with 3 home runs in game one of the world series his head was probably buzzing. But when batters in chilly Detroit had the ball not quite right in the next couple of the nets, it will be their hands that buzzing

发表于:2018-12-24 / 阅读(150) / 评论(0) 分类 Scientific American(十)月

This is Scientific America's Sixty-Second-Science. I am Steve Mirsky. Got a minute? Some interesting electrical activity in the clouds of ash drifting around Europe as a result of that Icelandic volcano. Models predicted that electrical charge should

发表于:2018-12-24 / 阅读(158) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-second Science. I'm Steve Mirsky. Got a minute? Can you name those notes? Probably not. Perhaps one in ten thousand speakers of European languages has perfect pitch - the ability to recognize a note without having hea

发表于:2018-12-24 / 阅读(174) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. If you ever got picked on in the schoolyard, you might have wished for some sort of superpower, like unbeatable speed or maybe just the ability to completely disappear. Now scientists

发表于:2018-12-24 / 阅读(174) / 评论(0) 分类 Scientific American(五)月

Scientists analyzed around 2,500 of those calls, and found that the second part (sound) is nearly identical in pitch every time from each whale: 16 hertz, or four octaves below middle C. And the slight variations in frequency that do exist are only a

发表于:2019-01-02 / 阅读(178) / 评论(0) 分类 60秒科学

Hybrid cars are good for the environment. But scientists say that they might be bad for pedestrians. Because hybrids are so quiet, it can be hard for walkers to hear them until its too late. Listen to this. [quiet car sound] Thats a Toyota Prius mov

发表于:2019-01-02 / 阅读(220) / 评论(0) 分类 60秒科学

Can you name those notes? Probably notperhaps one in 10,000 speakers of European languages has perfect pitch, the ability to recognize a note without having heard any reference note first. But theres a much better chance you could successfully name

发表于:2019-01-02 / 阅读(184) / 评论(0) 分类 60秒科学

If you ever got picked on in the schoolyard, you might have wished for some sort of superpower: like unbeatable speed or maybe just the ability to completely disappear. Now scientists at the College of Wooster in Ohio say that you might have had a s

发表于:2019-01-02 / 阅读(220) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Every year, scores of manatees are killed by boats in Floridas waters. Their plight is an ecological concern. And everyone from marine biologists to Marg

发表于:2019-01-08 / 阅读(159) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. Hybrid cars are good for the environment, but scientists say that they might be bad for pedestrians. Because hybrids are so quiet that can be hard for wa

发表于:2019-01-08 / 阅读(168) / 评论(0) 分类 Scientific American(五)月

We humans are pretty good at communicating with sounds other than words. But how much of this is hard-wired, and how much do we pick up from others? To find out, researchers recorded the nonverbal sounds of people born deaf, as they responded to a ra

发表于:2019-01-08 / 阅读(227) / 评论(0) 分类 Scientific American(十一)月

Blue whales off the California coast make calls that, sped up 10 times, sound like (sound of two-part call). The original is a wall-rattling frequency too low for us to hear. Scientists analyzed around 2,500 of those calls, and found that the second

发表于:2019-01-08 / 阅读(152) / 评论(0) 分类 Scientific American(八)月

This is the VOA Special English Health Report. How active you are early in life may affect how able-minded you are late in life. That was the finding of a new study of cognitive impairment, or a loss in mental abilities. The study involved more than

发表于:2019-01-11 / 阅读(178) / 评论(0) 分类 2010年VOA慢速英语(七)月

Country Music Ladies Put Men in Their Place American country music lyrics often describe women as they might appear in mens dreams. This is especially true of songs by many male artists. But the songs by Maddie Marlow and Tae Dye are different. The t

发表于:2019-01-12 / 阅读(182) / 评论(0) 分类 2015年VOA慢速英语(九)月

Boston Symphony Makes Music in Mountains When Serge Koussevitzy, the Russian-born conductor of the Boston Symphony Orchestra, opened Tanglewood in 1937, he chose an all-Beethoven program, including the Pastorale Symphony. When conductor Christoph von

发表于:2019-01-13 / 阅读(142) / 评论(0) 分类 VOA标准英语2012年(七月)

By Alisha Ryu Nairobi 18 November 2009 A U.S.-flagged container ship which was hijacked by Somali pirates seven months ago has been attacked again off the coast of Somalia. Pirates were unsuccessful in their second attempt to hijack the Maersk Alaba

发表于:2019-01-14 / 阅读(180) / 评论(0) 分类 VOA标准英语2009年(十一月)

The Tiangong-2 space lab, though adopting the structure of Tiangong-1 without too many changes in appearance, has been designed to function much stronger than its predecessor. Zhu Congpeng, chief designer of the lab, says they've focused on a variety

发表于:2019-01-19 / 阅读(173) / 评论(0) 分类 2016CRI中国国际广播电台

BEIJING, March 29 (Xinhua) -- Chinese President Xi Jinping on Wednesday stressed the importance of afforestation and urged people, especially the young, to understand and protect nature via tree planting activities. Chinese PresidentXi Jinpingtalks w

发表于:2019-02-05 / 阅读(197) / 评论(0) 分类 cctv9英语新闻2017年

通知与确认 Acknowledgments Confirmations 通知对方接到来信Acknowledging receipt of letters1. Dear Mr/Ms,Thank you for your letter No. A-3 of 6th May, offeringus 6 UI-4 Viewdatas. We have passed it on to ourTechnical Department for their c

发表于:2019-02-06 / 阅读(197) / 评论(0) 分类 实用英语
学英语单词
accessorising
Aconitum napellus L.
alfred tennysons
allocation of items
amicula
angle block for warp stop box
autoradiographictechnique
babacar
backpack nuke
barrel-organ
base wire
batterbury
bruddy
byars
cell edge
center of area
changed diameter paraffin scraper
chlorinated hydrocarbon
chlorophyllic
CHRP
cinematized
come and
Crepidula
crude medicine
cunabula
Daphne odora
dental prop
dictyodroma formosana
discretionary monetary policy of Federal Reserve System
disk-to-disk
drohobych (drogobych)
dummy destination
enshrining
equality of luminous photometer
export-led
factor-proportions model
film velocity
forethinks
frequency controller
gidaspov
gorkiys
grutches
hexagon turret
houred
household expenditure
hydrostatic uplift
ileopsoas
interaction
kataklastic structure
kielbasis
kuliokite- (y)
kuralt
laguardias
land-holding company
lifting bolt
liquid-sheet disintegration
loadbearing member
lower pure value
Maroseranana
meridian angle
metribolone
moo-cow
multiconfiguration self-consistent field theory
multiprogram address
Natron-onkosin
nonordinal
not reentrant
nozzle-loss
optical projectors
order on a bank
outstanding account payable
Oxford bags
passivation ledge
pohlia cavalieri(ther)chen
poikilodermatomyositis
polarization correlation
postmodifying
question file
reconstruction of orbital floor
red-flowered silky oak
renix
Rhynchanthus beesianus
rollover credit
senior first engineer
series of decreasing power
set of inequalities of probability
significant development
slice microcomputer
softner
solid fission products
spire roof
spray tray deaerator
studied
tail water
tamarinds
trachys auricollis
trivulzio
valency force
xylopentaoses
zagrebs
zebrin
zhushing