时间:2019-03-06 作者:英语课 分类:英语时差8,16


英语课

 Ya?l: I've got a good trivia question for you, Don.


Don: OK, Ya?l.
Y: What animal's beak 1 is one of the hardest known organic substances?
D: Umm . . . I don't know. The bald eagle?
Y: Nope. It's the giant squid. A squid beak can reportedly snap through a steel cable.
D: That's actually sort of surprising . . . because aren't squid's bodies normally squishy and soft?
Y: Yes. And that's exactly what's puzzled scientists . . . how can such a hard beak be attached to a squid's soft, jello-like tissue without falling off or cutting the squid to bits? What the researchers found is that squids can control the amount of water that gets into their beaks 2. Because virtually no water is allowed into the tip, it stays very hard and stiff. There's more water inside the lower parts of the beak, making it gradually softer. At its base, the beak is soft enough to blend right into the squid's body.
D: Nature never fails to amaze.
Y: No doubt. And the discovery could inspire the invention of new building materials that mimic 3 the squid beak's gradations of stiffness and flexibility 4. Engineers are also concerned with joining together different materials like metals, ceramics 5 and plastics. Learning more about squid beaks could help scientists create adhesives 6 that bond with metal on one side and plastic on the other, for example.
D: I wonder if squids know how dynamic their beaks are?
Y: You'd have to ask them.  

n.鸟嘴,茶壶嘴,钩形鼻
  • The bird had a worm in its beak.鸟儿嘴里叼着一条虫。
  • This bird employs its beak as a weapon.这种鸟用嘴作武器。
n.鸟嘴( beak的名词复数 );鹰钩嘴;尖鼻子;掌权者
  • Baby cockatoos will have black eyes and soft, almost flexible beaks. 雏鸟凤头鹦鹉黑色的眼睛是柔和的,嘴几乎是灵活的。 来自互联网
  • Squid beaks are often found in the stomachs of sperm whales. 经常能在抹香鲸的胃里发现鱿鱼的嘴。 来自互联网
v.模仿,戏弄;n.模仿他人言行的人
  • A parrot can mimic a person's voice.鹦鹉能学人的声音。
  • He used to mimic speech peculiarities of another.他过去总是模仿别人讲话的特点。
n.柔韧性,弹性,(光的)折射性,灵活性
  • Her great strength lies in her flexibility.她的优势在于她灵活变通。
  • The flexibility of a man's muscles will lessen as he becomes old.人老了肌肉的柔韧性将降低。
n.制陶业;陶器
  • an exhibition of ceramics by Picasso 毕加索陶瓷作品展
  • The ceramics bore the imprint of Luca della Robbia. 陶器上印有卢卡·德拉·罗比亚的字样。
黏合剂( adhesive的名词复数 )
  • These include dyes, adhesives, solvents, detergents, metals, and other foreign materials. 其中包括染料,粘合剂,溶剂,洗涤剂、金属等外界物质。
  • Preparation, properties and kinds of polyurethane adhesives were described. 综述了聚氨酯胶粘剂的合成、特性和种类。
学英语单词
a dead giveaway
acetyl glycine
adina globiflora salisb.
agnosy
Alcaucin
american puritanism
aspergillus multiplicatus
attachment of policies
Auropan
beautyful
beg for bread
Bernstorff
birck
black cockatoos
Car-
carbaminohaemoglobin
CAT scanner
catalyst reduction
CNSTR
composition factor series
conjunct tetrachords
connected solvable Lie group
convection-cooled power supply
copper wedge cake
creativity check list
creeping legume
cylinder type cutterhead
dardanelless
detestest
diffused hydrocele
distance effect
ebdt
ecornutum
egyptair
euroclass
except as otherwise noted
family convallariaceaes
fiduciary property
fm (femtometer)
genus Marasmius
goosing
hacksaw frame with plastic handle solid type
hardware implemented fault tolerance
head opening
helium 1
high level vswr
hot air heater-defroster
incestualist
indicator plant for mines
inertia cross-coupling
kap-
lisl
malthodes (malthodes) taiwanus
Marii Pronchishchevoy, Bukhta
medalist
methyl xyloside
millhouse
MK-485
myogenesis
negator
neoimpressionist
nicholas's
Nkonko
non quantitative
northermore
obtain admission to
offenheiser
overtransfusion
p-lactophenetide
palaeotopography
party animal
pennar
photopositive
picker cylinder
polka jacket
porous sintered metal
potassium iridium alum
pronatura
pulmonary mechanics of circulation
rehashing procedure
relativistic effect
sanguie temperament
secretly
shipping memorandom
silent partners
slime-fungi
solenoid operated spoiler
speed-bump
steam-coil-heated
tetrazolinone
theory of gene starvation
theregain
thoghts
traffic flow
transistor-level
triangle diagram
tuberositas postaxialis
two ply tyre
unemotively
vaporblast
work carrier
X-ray cataract