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
AATP
agricultural shot
alcohol burner
all-purpose capillary viscosimeter
amidship(s)
anharmonic interaction
banded anteater
barong Tagalogs
blood cooker
bond-holders
Burkinan
butthead against
Cape Verde Islands
Catabrom
chimerisms
cobaltic chloride
cohyponym
compilation statistic report
cooperative motive
copyright office
critical speed of revolutions
dangerous property
data transmission unit
DEHFT
dividing ruler
double-suction centrifugal pump
echokinetic
eduction
electrodrill
emergent current
evaluating indicator
fine lady
forthfets
forward nodal point
free shrinkage
full scale development (fsd)
gyroscopic-clinograph method
handy carrier (h.c.)
heart-searchings
heavier element
hemolysis index
humidious
I'll call the police
jewed down
lateral wind axis
Lathyrus dielsianus
lead-in lines
leak test by filling water
legislative control on administration
Life Cap
Lysimachia candida
malonamic acid
metal-rich
middl
miniwatt amplifier
monitor cavity
mucocellular
multistep attenuator
Muniz Ferrira
naked option writing
natural sampling
net-shaped crack
newbegin
Nicotiana rustica L.
nonruminant
nzengs
oil seal felt
only that
operator control address vector table
over-socialized
parallel applicative database engine
pars tuberalis (lobi glandularis hypophyseos)
peak separation
pipelay vessel
pressure per unit of area
Priorian
purseseine
quartermaster
reductively
rolling stock damage
run bases
set-theoretical
Shelly's sign
squared the circle
SSEGC
stampfer
stand upon their dignity
statistical graphic symbols
Strawberry Point
sucking fit
survey on completion
Taocheng Jushi
thermal efficiency index
thioglycolic
three moment equation
timber structural system
torn fibers
transfer of debentures
variable error
weeviled
xyloglyphy
zests