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
5-hydroxy1-2'-deoxyuridine
actual cost
Acucena
adatome
anacidity
androphany
at half - cock
attritionary
axial flow fan
big country
breathest
brownsvilles
bruter
Bysice
cathedrate
cerebral tetanus
cerebral thrombosis
change-rounds
Chimonocalamus
chloromethylsulfonyl
city men
comatosely
confund
constructional alloy
contrapositives
couple something with something
coystrel
cyberwear
dentes fixi
design mach number
detail tape
developmental cycle of ovarian follicle
drepanocytic anaemia
drop pit
dull-red
economic system reform
ecotropic retrovirus
flourish like the green bay tree
for vessels under external pressure
galleria mellonellas
genus Ceratostomella
Georg Simon Ohm
Giaginskaya
grid identification note
ground gear
Gârbǎu
indole, indol
intermediate groundwater
issue letter
jinga
Lappula patula
lobbyist
lose them
machine data
magnetic cross valve
merzbacher
millpool
nickel chrome wire
non-compounder
octenidine
odor intensity
Okcheon
old lake
Palevo
palladium devices
periphery of personality
petro-occipital fissure
phenol-furfurol molding compound
Pico, I.
pile-driving method
placental sulfatase deficiency
planimetric lines
power disconnect switch
practical results
precise measurement
propane gas cutting
proprietorship register
purplier
roadside hawk
saganaki
saint emilions
salt cake
schedule of changes in net quick assets
section lining
ship bottom antifouling paint
sigmoid reflection pattern
skywalk
slumber-wear
Socinianize
sociometric
sootblowing
Sulmet
Sālgrān
Ta-pom
techno-globalist
threu
Truman, Harry S.
two level maser
two plate clutch
vertical retort smelting
vibex
zu'ama