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
accuser
acid proof enamel
aegirs
air noozle
Ammochostos
assasin
astrogeodetic datum orientation
blackstick
blue rinse
bracketlike
breakaway rider
broadminded
calibration system of compression-type vacuum ga(u)ge
carbamidophosphoric acid
ch.v.
Church of the Brethren
cleat
clowr
co-register
collada
communication input output control system
corvus coraxes
dardenne
defense cells
dejar
descreened
dharmasutra
dialing area
die platen
DVD-RW Alliance
eijkmen
elaboratories
electrooptic light valve
emptying time
excitation of spectra
federal radio act 1927
felt nail
Fenolsolfonftaleina
feudal baron
finishing lathe
foreseek
forward visibility
gas carburizing system
gas implosion
halacha
harmonic suppression network
hayduks
heaft
herapathite
idols of the market-place
itemizable
killing you
Leach's tests
malans
Mdme
measured pressure
meristem arthrospores
meson science
metastable level
mitigateth
modernity
money borrowed for long term
monostable element
monostachous
multiplex tracing table
Newfoundland
nonrepetitive manufacturing process
optical tunnel
Pal-Asia
perniciosiform anemia
Petrarch, Francesco
Presidente Bernardes
product stock
radiant heatings
radio tele-type
recursive relation
Redondo, Cerro
remainder radio deviation
resistance to metal penetration
roller subsoil
roration
rose leaf
Scotch beef sausage
soil coprophagous animal
spiculation
standardized testing
statistical probability
Super DOT
swivel-eye
tetratolyl lead
theological seminary
total cumulation
tourmaline-corundum rock
trans.
triaziquone
true solar day
ventriculi galli mucosa
verified figures
Wan, wide-area network.
water cooling tube
What say?
Zillertal