时间:2019-01-02 作者:英语课 分类:60秒科学


英语课

Ostrich 1 wings, in addition to use in display and thermoregulation, let the giant birds make subtle, quick movements. Which could help researchers better understand the behavior of bipedal dinosaurs 3


Sometimes it seems there’s only so much we can learn about dinosaurs. We can’t know what their coloration looked like, we can’t watch them interact with each other. We can only extrapolate from their remains 4. But now scientists say we can discern a hint of dinosaur 2 movement – from ostriches 5.


The giant, flightless birds still have feathered forelimbs that scientists assumed were now solely 6 used for display and temperature regulation. But researchers from Germany and Belgium carefully observed hand-raised ostriches, and modeled their movement in the surrounding air streams. They found that far from being useless in movement, the leftover 7 wings help ostriches break quickly, turn, and zig-zag. The scientists [Nina Schaller et al.] presented their findings at the Society for Experimental Biology’s annual conference in Prague.


Ostriches are descendants of dinosaurs, and the researchers liken ostrich movements to those of bipedal dinosaurs. Paleontologists had previously 8 thought that some dinos’ small forelimbs had served to catch insects or rip flesh. But this new research shows dinosaurs may have used their forelimbs to help with quickness, stability and agility 9. Further study in this field could lead to more accurate ideas of what it once looked like when dinosaurs went dashing through their prehistoric 10 landscape.

 



n.鸵鸟
  • Ostrich is the fastest animal on two legs.驼鸟是双腿跑得最快的动物。
  • The ostrich indeed inhabits continents.鸵鸟确实是生活在大陆上的。
n.恐龙
  • Are you trying to tell me that David was attacked by a dinosaur?你是想要告诉我大卫被一支恐龙所攻击?
  • He stared at the faithful miniature of the dinosaur.他凝视著精确的恐龙缩小模型。
n.恐龙( dinosaur的名词复数 );守旧落伍的人,过时落后的东西
  • The brontosaurus was one of the largest of all dinosaurs. 雷龙是所有恐龙中最大的一种。 来自《简明英汉词典》
  • Dinosaurs have been extinct for millions of years. 恐龙绝种已有几百万年了。 来自《简明英汉词典》
n.剩余物,残留物;遗体,遗迹
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
n.鸵鸟( ostrich的名词复数 );逃避现实的人,不愿正视现实者
  • They are the silliest lot of old ostriches I ever heard of. 他们真是我闻所未闻的一群最傻的老鸵鸟。 来自辞典例句
  • How ostriches could bear to run so hard in this heat I never succeed in understanding. 驼鸟在这样干燥炎热的地带为什么能疾速长跑,我永远也理解不了。 来自辞典例句
adv.仅仅,唯一地
  • Success should not be measured solely by educational achievement.成功与否不应只用学业成绩来衡量。
  • The town depends almost solely on the tourist trade.这座城市几乎完全靠旅游业维持。
n.剩货,残留物,剩饭;adj.残余的
  • These narrow roads are a leftover from the days of horse-drawn carriages.这些小道是从马车时代沿用下来的。
  • Wonder if that bakery lets us take leftover home.不知道那家糕饼店会不会让我们把卖剩的带回家。
adv.以前,先前(地)
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
n.敏捷,活泼
  • The boy came upstairs with agility.那男孩敏捷地走上楼来。
  • His intellect and mental agility have never been in doubt.他的才智和机敏从未受到怀疑。
adj.(有记载的)历史以前的,史前的,古老的
  • They have found prehistoric remains.他们发现了史前遗迹。
  • It was rather like an exhibition of prehistoric electronic equipment.这儿倒像是在展览古老的电子设备。
学英语单词
abnormal termination abort
Acomatacarus major
allantoicase
amoureuse
antifoundational
banausic
bathurst
Blerick
bracket light
car mirror
centre of dispersal
cepheid variables
ceramic DIP
chamazulenogene
chloranilate
circuit tester
coeruleum thymolis
coordiator
copyright infringement
cortex granati
cosyntropin
counter-clockwise angle
court trusts
cover type map
cupressus arizonicas
cylinder band
declaimeth
deener
dense-graded asphalt concrete
Deutzia nanchuanensis
diesel reduction drive
different diameter roll type husker
distribution account of national income
double-occupancy
draw beam
dustbathing
enprisoning
fitted value
fractional digit
gastricisin
georg ohm
goatburger
guinea keets
Herzegowina
high muckety-muck
Hopf mapping
hypoventilating
Ijesa-Tedo
infrahepatic
kerin
macphersonite
matrimony vines
memorialis hirta (bl.) wedd.
metallic hydrogen
milk tanker transporter
miniseriess
misrepresentation of health information
mother-fuckers
mountain-making movement
neon filledtube
Ness, River
objective analysis value
Oosterdijk
opening of the telescope
overall logic
pearl knitting
periaqueduct
policy credibility
polychromatic light
potassium cobalto-nitrite
Potentilla nervosa
powdered vulcanized rubber
Przysucha
recovery process
red flower
rediverted
relapseth
retroarcs
rexman
Ruhinda
saddle friction-plates
second-string
single-speeds
stealings
stop valve spindle
structural component
supmmeatai triangle
thermal initiation
thermal underwears
topographic interpretation
trapezium segment
trial-for-ignition period
UKBA
umbworld
unbind
uniquely defining class
vehide currency
veiniest
wasn't
witnessest
xenogenesis
Yagi-Uda array