时间:2018-12-30 作者:英语课 分类:托福听力短文


英语课
(woman) We've just seen two contemporary large birds that cannot fly: the emu and the ostrich 1. Over here is an interesting specimen 2 from the past. This stuffed animal is not the giant penguin 3 it appears to be, but an auk. This particular kind of auk is very rare --- only 78 skins are known to exist and most are not preserved as well as this one. The great auk, as you can see, was a rather large bird, and it couldn't fly either. However, evidence suggests that the auk was an excellent swimmer and diver. Unfortunately, those abilities did not protect it from being easy prey 4 for hungry sailors who yeas ago sailed the very cold and often icy waters of Greenland, Iceland, and Scotland. In fact, records indicate that the auk was rather tasty and that its eggs --- Excuse me... that its eggs and feathers were useful as well. Still, it isn't clear what other factors led to the big bird's demise 5 around 1844, the last time anyone reported seeing one. Of course, we believe it's important to take extra precautions to preserve the remaining great auk skins. After all, these specimens 6 should prove invaluable 7 for future scientific research. Does anyone have any questions before we move on to our next bird exhibit?


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.样本,标本
  • You'll need tweezers to hold up the specimen.你要用镊子来夹这标本。
  • This specimen is richly variegated in colour.这件标本上有很多颜色。
n.企鹅
  • The penguin is a flightless bird.企鹅是一种不会飞的鸟。
  • He walked with an awkward gait like a penguin.他走路的步子难看得就像企鹅。
n.被掠食者,牺牲者,掠食;v.捕食,掠夺,折磨
  • Stronger animals prey on weaker ones.弱肉强食。
  • The lion was hunting for its prey.狮子在寻找猎物。
n.死亡;v.让渡,遗赠,转让
  • He praised the union's aims but predicted its early demise.他赞扬协会的目标,但预期这一协会很快会消亡。
  • The war brought about the industry's sudden demise.战争道致这个行业就这么突然垮了。
n.样品( specimen的名词复数 );范例;(化验的)抽样;某种类型的人
  • Astronauts have brought back specimens of rock from the moon. 宇航员从月球带回了岩石标本。
  • The traveler brought back some specimens of the rocks from the mountains. 那位旅行者从山上带回了一些岩石标本。 来自《简明英汉词典》
adj.无价的,非常宝贵的,极为贵重的
  • A computer would have been invaluable for this job.一台计算机对这个工作的作用会是无法估计的。
  • This information was invaluable to him.这个消息对他来说是非常宝贵的。
学英语单词
a.g.e
achatinus
Adenacanthus longispicus
afterpart
approach with
arc de circle
aries the rams
assorter
aurila chejuensis
avf
bageled
borehole technology single
brake connection pin
bravais rule
buckish
burning of paper
canceled in error
cetraria tundra
clad fibre
coding gate
cop knock
coraciiform bird
crematogasters
criture
detect
dissociation constant
dual wheel control
dynamic response factor
elimination of intercompany indebtedness
engineering goods
ephemeral plant
face relief angle
fall into ruin
field current
fixed-venturi carburetor
Fort-George
Forward forward contract
Goidelic
group transfer scattering cross section
grynde
hologymnosus rhodonotus
hongis
kaie
knife control
knockout drop
kujichagulia
La Capelle
latinamerica
left hand teeth
light coherence
loganberry
low-grade metal
low-speed reclosure
macromolecular isomorphism
malones
Matsudaira Yoshinaga
mercury-vapour tube
microburst
milk equivalent
minimum cognoscibile
mobile drilling platform
multiple exhaust turbine
Neomeritine
nonlandowner
obelisklike
page makeup
phytotomist
planned balance
practisers
preponderance of evidence
presbyornithids
pulsus myurus
quibinary notation
raised water-tight manhole
red orpiment
right entry
rotary screen printing
Sablé-sur-Sarthe
safety rating formulas
sciatic neuritis
serofast
shaft center
shield earth
singing point equivalent
slipless
smooth flat wood rasp
snitow
St Joan
staggerin'
Stowaway Away
sway-back
tall order
tension wave
texasite
thermal neutron source
tightest
transcription repressor
two-terminal pair network
unscottified
velours epingle
whvs.
zuccari