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 knowledge of
absolute ionic mobility
aciculas
acidate
additives for plastics
adinandra millettii benth.
admiralty metal
Akrotiri
auto-stereogram
back score
Banach
Bayes
big fishes
blacktopping
blast furnace burden
bleeding line
botvinniks
bright as silver
buttony
confuses
constant humidity
copy shops
counter controlled cloud chamber
Desmodium mandshuricum
disciplinary rules
double-flow induced-draught cooling tower
dscg
economic activity
Erma
Faux Bubba
fibre slippage
fourveye
galactose-1- phosphate
grugru nuts
Gryllotalpidae
halticoptera circulus
heat exchanger bypass valve
hemirheumatism
honeycomb board
Hooke's atom
hydroxyethanal
hydroxyl-amine
incompacted
inderkins
internal equalizer
into the breach
invariant loss function
justins
kristina
limited oxygen index
lyophilic colloid
Mahdiist
make one's marble good
mark-space multiplier unit
mausure
mehmanparast
mica splittings
mission-minded
mixed budded area
multiple spindle honing machine
obliteration of name
oxy-alcohol
p-q analysis
plasmaviremia
Plenaxis
plesiophthalmus formosanus
pneumatolytic deposit
pneumophila
power interlocking frame
pythium coloratum
radio-thermoluminescence
raggi
rami parieto-occipitalis
Raykovo
receive control predefined procedure
remote communication central
reserved symbol
resyllabifies
right hand opening
rubbed elbows
seamless connection
semifinishing mill
sepiomelanin
single frequence network
skimmers
small aperture separator system(SASSY)
static zone
steel visual inspection
straight-forward mode
submicrogram
Taube
TDLD
telecom equipment
thorneys
tiba
trust revolving fund
two-circuit winding
unified jurisdiction
unilateral limit
Union League
violet red bile agar
wear bachelor's buttons