时间:2018-12-24 作者:英语课 分类:Scientific American(九)月


英语课

 Cerumenis a lovely word especially considering that is means earwax.And we're nothingonly species that produces the stuff.Some whales built up waxes along withlipids and charaten protein into what's called earplugs.And now researchers nowknow that examining this plugs tells them about whale's lifetime exposure topollution.Alternating layers of dark and light in the plugs correlate toseasons of feeding migration 1.So the plugs have been used to determine a whale'sage,think tree rings.In the lasted study scientist analysed an earplug from anendangered blue well killed by a ship in California.They found that levels ofstress hormones 2 doubled of the whale's life.They also found evidence that thewhale has been exposed to pesticide 3 such as DDT with the highest levels turnsthe whale's first six month of life.Whale was likely exposed to the pesticidesin its mother's milk.They also found a couple of peeks 4 of exposure tomercury.The study is in the proceedings 5 of the national academy ofsciences.Future earplug should offer additional clues of whale lives,so look for researchers to get new attention to leviathan cerement.



1 migration
n.迁移,移居,(鸟类等的)迁徙
  • Swallows begin their migration south in autumn.燕子在秋季开始向南方迁移。
  • He described the vernal migration of birds in detail.他详细地描述了鸟的春季移居。
2 hormones
n.杀虫剂,农药
  • The pesticide was spread over the vegetable plot.菜田里撒上了农药。
  • This pesticide is diluted with water and applied directly to the fields.这种杀虫剂用水稀释后直接施用在田里。
3 peeks
n.偷看,窥视( peek的名词复数 )v.很快地看( peek的第三人称单数 );偷看;窥视;微露出
  • A freckle-face blenny peeks from its reef burrow in the Solomon Islands. 奇特的海生物图片画廊。一只斑点面容粘鱼窥视从它的暗礁穴在所罗门群岛。 来自互联网
  • She peeks at her neighbor from the curtain. 她从窗帘后面窥视她的邻居。 来自互联网
4 proceedings
n.进程,过程,议程;诉讼(程序);公报
  • He was released on bail pending committal proceedings. 他交保获释正在候审。
  • to initiate legal proceedings against sb 对某人提起诉讼
学英语单词
achaemanid
Alvarez accelerator
azosulfamide
barbecute
Bassfield
biadder worm
brake pressure
bring something up to date
calibrating resistance
cause ill blood
chalchuite
character change
cleaning screen
coking arch
common goal
complementarity
compound motor
conchoid of Nicomedes
confide to sb that...
decreasing term insurance
direct instruction
dump heat test
dyest
eartags
enshelled
epicentral region
equilibrium stability
eupatoria
fardelled
finger-painted
flash point-apparatus
foreheads
foreign exchange holdings
geocomposite
geon (geometric ion)
glenospore disease
goodeniaceaes
Gornaya
goryphus basilaris
hemicorporectomies
hypomecis formosana
immunoneutralisation
injury to auricle
is of interest to
isomere
kucheans
lacerating machine
land leases
layer of ganglion cells
line judges
list up
logical check
look-ahead data staging architecture
lozenge-shapeds
lupus cell
methyleneurea
misbeliever
mounting area
multi-disciplinary
multichannel recording oscillograph
necked-down section
netversion
non-ferromagnetics
non-jacquard machine
normalbacteriolysin
obduratenesses
operating convenience
operational semantics
optimum cure point
orthostatic
overtones
Padumi
paid attention to
plateros
point pitch
Pokrovka
race way grinding machine
reactive golden yellow
receiver of the refrigerator
recorded gap
refined syrup
refrigeration dehumidifying
registerial
reprocessing rate
rolling hatch beam
Romishly
scymnus (neopullus) hoffmanni
shift driving shaft
shiner
sonar beam pattern
spherolite
standard minerals
stereo(regular) rubber
telebooths
tolyl-
total points
transmission, parallel
unclonable
unindents
villanized
warm sludge
xanthochilus