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
abcdefs
acid brittleness
Affalterbach
albinodism
allergic pulmonary alveolitis
alveolar septum
aperto
base ammunition depot
be torn
beam-endss
behavioral neuroscience
bemoil
beta - adrenergic receptor
Birthday of Martin Luther King, Jr.
bottom-up parse
Brahminoside
brainers
bullhead rail
calcospherite
characteristic variable
cibao
Cnidium salinum
cocky-leekies
compensator weight
complex angle
compressive modulus
condition concurrent
coraller
deep water line
design basis storm
disc(disk)
don't care
downcoast
drum type concrete mixer
extraction steam system
faintingness
farmery
fire triangle
fissure intrusion
foldless
forereckoning
four-banger
Frobenius numbers
gene-for-gene theory
glomalean
hetero-immune substance
hydraulic up-stroke press
Initial filing
interchain spacing
International Broadcasting Corp.
intromittentorgan
iphugh
jaworskis
LAN switch
leading side of blade
Lepidium cordatum
leptocera (leptocera) nigrolimbata
let sb. down gently
lettonies
leviable transaction
lion head
liquid gate printing
liquidambar styraciflua
Marabila
medium term forecast
moonishly
motorship
munchy boxes
Murrumburrah
mythifies
Nguyen Khanh
nigrospora sphaerica
nitrogen equivalent
normal compiler writer
offset upsetting
open stoping
Oxford clay
pan-human
pansas
papilliform
parascorpaena maculipinnis
planned reduction
pleurite
provincialate
Q-rating
quadratic phase mismatch
reawards and punishments
running account
Sida asiatica
standard logging
statuefy
straight knief cutting machine
structure knowledge
Sulphur Point
test facilities and instruments
Themeda triandra
theoretical prediction
traffic-free
transition trainer
unreacted radical
water chemistry of nuclear reactor systems