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
1-mercuri-2-hydroxypropane
a pooch
acoustic bulk wave correlator
albicans Saccharomyces
annual mean temperature
Araras
assigned summer freeboard
automatic identification equipment
Ayr
barge canal
batch of dough
beaching gear
black border effect
bovine papular stomatitis virus
brazilian guavas
Bridgeman
cable anchor
camber sand
car card
Carex hypochlora
Castanopsis
Catalina coupons
check-roll
cold curing varnish
cold press process
Combustion Engineering standard reactor
common mode failure analysis
corporate asset funding
corrupted
cosway
crawling peg
Dimmit County
din-dins
disapprovements
distinguished pseudo-polynomial
Domoate
eccentric for fuel regulation
eight-story
emitting sole
enthrone in
environmental deprivation scale
erroneous assumption
extended table
first teams
Fontana's stain
fratellis
ground-proximity warning system
Havdala
Hell's Half Acre
hipshers
hydroponic culture
ice water test
inbred lines
Indian spring low water
inseity
Inver Grove Hights
Isho
jet shoes
killery
leukoareosis
level surface
linen reed count
Lluchmayor
long-shaped rice
Mara Bridge
marine stack
mendelian population (dobzhansky 1935)
natural cycle system
Ni-trosospira
non compos (mentis)
outgay
pactolus
partly paid
peak cover
peaky
plug reef
power voltage
process average fraction defective
qabalah
repeptization
ropa
rope wave
Ross,Sir James Clark
rotary piston diesel engine
Schultz's phantom
seriate poikilitic texture
sleep debt
squiret
stationing accuracy
Sterculia simplex
Subaru Project
target material
the future of soilless culture
topixes
touro
TV center
urolithic stranguria
ustilago poae s.ito
very high-speed Backbone Network Service
wage setter
water gas shift
Willemstad