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
accomplice as witness
antifreezing material
aquatic organism
auxiliary network
betake oneself to
bismuth oxyiodopyrogallate
blackfoot daisy
break in time
cancelled invoice
carbondale refrigeration process
cardiosphygmograph
carriage of automatic welding machine
carrier frequency wire broadcasting
chicken heart
clear astern
cludder
composite timber
conflict-of-laws
consumer decision
contraharmonical
cruise trade
cyanide copper
damsels in distress
destigmatises
detrude
Didynamia
double-amplification circuit
drill ammunition
dysgerminomas
efrem zimbalists
elliptic geometry
equal angle iron
external adenomyosis
fiducial marker
genital systems
go scot - free
grease dropping point
horizontal stadia
hotelward
HPFMs
intermittent contiunous waves t
Judah ben Samuel
Kaélé
keep fingers crossed
keratokonus
Kiefersfelden
last cut
light bulb joke
local copy directory
magnesium boride
make a joke of
metal seal
methenamines
money-no-objects
myar
negative hardening
news photographies
non-medullated fibers
order sarcosporidias
organic stricture
oxyclines
oysterplants
parametria
passengers carried
penna.
personalzines
photometric analyzer
polypodium l.
posterodorsad
powerdry
praetextas
press interview
primary exchanger
programme chooser
project directory
Purbeckian stage
rate of estate duty
regimen of river
Rift Vally fever
rotor winding machine
rule of thirds
scillaren B
settlings
short-services
shrimp peeling machine
sparrowgrasses
stock mare
tank inductance
tetrabromophtbalein sodium
The Im Alone Case
thiazole
Tranquilax
tranquillity
triptiolide
USSWG
vacuumed
vertical-compound turbine
vinologists
viterbi detection
wesbury
white feldspars
Zeta Geminorum stars