时间:2019-02-03 作者:英语课 分类:英语听力:文化博览2008年


英语课

 Bamboo's tough reputation is such that another bamboo specialist was known by the Chinese as the "iron-eating animal". The giant panda is famous for its exclusive diet. Giant pandas are thought to have originated in Southwest China millions of years ago, but they are no longer found in Yunnan. Recently their specialized 1 diet has had dire 2 consequences. Bamboo has a bizarre lifecycle, flowering infrequently, sometimes only once every hundred years or so. But when flowering does occur, it's on a massive scale, and it's followed by the death of all of the plants. Sometimes an entire bamboo forest may die.


 
In undisturbed habitat, pandas simply move to another area where a different bamboo species grows. But as human activity has fragmented their forest home, pandas find it increasingly hard to find large enough areas in which to survive. Wild pandas are now found only in the forests of Central China, far to the east. But in the hidden pockets of lowland jungle in Yunnan's tropical south live one of China's best-kept wildlife secrets--the wild Asian elephant.
 
Elephants once roamed across China as far north as Beijing, but it's only in the hidden valleys of Yunnan that they have survived. Elephants are the architects of the forest. Bamboos and grasses are their favorite food, but saplings, tree leaves and twisted lianas are all taken with little care. As they move through the forest, the elephants open up clearings, bringing light to the forest floor. This has a major impact on their home.

adj.专门的,专业化的
  • There are many specialized agencies in the United Nations.联合国有许多专门机构。
  • These tools are very specialized.这些是专用工具。
adj.可怕的,悲惨的,阴惨的,极端的
  • There were dire warnings about the dangers of watching too much TV.曾经有人就看电视太多的危害性提出严重警告。
  • We were indeed in dire straits.But we pulled through.那时我们的困难真是大极了,但是我们渡过了困难。
学英语单词
-centric
a breezy
accelerated respiration
affect display
aluminide
Anguimorpha
axial tensor
barrens
belue
black grass
Brobdingnaggian
buying and selling operation of securities
cakas
centrifugal pump laws
Chlorella pyrenoidosa
code of survey area
Coenothecalia
completion well
compressive settlement
cooperativepurchase
Corylophilin
Crathie
crude product
customary transshipment
daughter radiation
Dihydro-Vitamink1
director of studies
disjuncting layer
entry cluster
euphorbium poisoning
evaluation in array assignment
fall place
field storage
fissure polygons
frigolabile
get rid of something
handle with kid gloves
havoir
hepatic duct
high-level (radioactive) waste
hip-pocket flask
impersonates
independent equipment
informer's case
inverse photoemission spectroscopy
Japanese scavenger
kvs
lead polarity of a transformer
letta
license system for electric power business
licensed aircraft engineer
make ends meet
make someone's acquaintance
margarimeter
mercury-vapor frequency changer
metallic-hydrogenous shield
Minho, Prov.de
moulded tube
multi national corporation
mutual fund investments
n.o.p.
negative phototaxis
nonwinterized oil
Oberellen
oladele
orna
ortyostereoscope
outlive
Parsau
piezoelectric sensing device
playa
political orientations
postcecal
pre-Palestinian
product class's choice criteria
ptyas korros
registered nurses
related cost
responsas
RETMA
revuelto
rotorod technique
saii
sandel
sato
scentless hayweeds
semiinfinite
space of real numbers
split type
Thomas cavitation constant
tientos
tillson
torqs
toxicokinetic
tuberculous pneumothorax
tumorocellular infiltration
two flame burner
user-tuned system
videocameras
voltage high
welfare building
whole body autoradiograpy