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
0874
acrrospiroma
aesthetases
ambient networking
an angle of incidence
arithmetic frequency scale
atmospherics
automatic production
Barkhera
Bora Bora
Burpies
cd-xes
centrilobular
chrysopal
church organ
clearance loading gage
cross disking
crosslinked polyester
curly maple
cyber-school
DDVF (dimethyl-dichlorovinylphosphate)
deep volar arch
defect of eyebrow
derating curve
dictamnolid
DLEUROTOMARIOIDEA
dodgerblues
doubletree
dulias
dwight lyman moodies
environment contamination
fair sex
feed inlet
fibrae arcuatae externae dorsales
flap extraction of cataract
glass tube pressure gauge
glucosephosphate
Gujranwala Division
Haeju-man
handybilly
heliotropian
hemicorporeal
hermetic sealing
high-voltage switch
hot trim
hydrous bucholzite (hydrobucholzite)
i-peinted
ice drink
induced labour
iraggic
jamstec
kindermuseum
Lascari
latent defect
luminol
M'F. R.
main and by-product production
malinski
manganese copper alloys
mechanical pressure recorder
Mobert
multicolor Nanking brocade
museumwide
Nephroselmis
newbies
nimbility
nonmarine
nonmultiplicative
normatron
Numto Uval
option charge
overprioritizing
Pan-American Highway
prometaphase movement
property information system
prororoca
rastle
revivor
Ribostamin
rivalty
roquin
RSLD
schiafino
Schultze's placenta
sea water science
sialism
spiral scale
stab(punctured)
susceptibility to failure
tabular cell
thermoplastic welding strip
thin skinned ingot
trampler
treaty of brest-litovsk
tsung
Turbotville
twospeed axle
uncontent
Urban Cowboys
ventilated supercavitating propeller
walking dragline excavator