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
-lin
accelerator factor
accuracy block
air cooling valve
anti-reflexive relation
Asherman syndrome
autotests
Avanigadda
back cleaning
balance dynamometer
barao de grajahu
blue African lily
calliostoma formosense
caveators
ceatharlach (carlow)
chromic sodium alum
chronic perinephritis
cladded slab dielectric waveguide
clock-rates
cross-section library
cruciatus
darby carburizing process
dijoseph
duality method
enantiomeric configurational unit
equivalent proton
expeditous
external fire
forfending
Galium aparine
go-word
harnesseth
have a way with one
heat drift
hellerworks
hepatonephritis
high-priority item
holding of subsidiary's prefered and common stock
hot saw
HVH1
influence area of well
infrastructuralists
inshorer
iodophenesic acid
jib-iron
kephalepsalkis
Klein-Gordon equation
lacte
laparomyitis
lingulids
logic programmings
low idling speed test
macagy
macrophiles
major control
matalutin
mercury coulombmeter
metal-hydrogen nickel battery
method of standard addition
mine telephone set
minor prophet
mountbanke
mtjs
mucor parvispora
national institutes of healths
nothosaur
overboard discharge
oxygen groove
pantodonta amblypoda
Petronius Arbiter
phase-modulated carrier
phenoxy ethanol
Phytine
plumbous antimoniate
pottern
pressure release valve
pseudanthias pascalus
pseumenes imperatrix
radiosymmetrical
range ecology
reclamping
room air plant monitoring system
Sanio
saturation moisture content
soddy podzolic soil
solo type motor cycle
somethingfishy
space-time function
spiral of silence
strange to observe
tapping plug
tengluozi
thigh bone (or femur)
transverse wall
tubal pregnancy
Turvo
vascular systems
weighting structure
weird sister
what a day
whimble
willow-tree