时间:2019-01-23 作者:英语课 分类:探索与发现2012年


英语课

 Midsummer on the tundra 1 and the sun does not set. At these altitudes, the sun’s rays are glancing and not enough of their energy reaches the ground to enable trees to grow. You’ll need to travel five hundred miles south from here before that is possible. 


 
These stunted 2 shrubs 3 mark the tree line, the beginning of the boreal forest, the taiga. The needle-shaped leaves of the conifers are virtually inedible 4. So this forest supports very little animal life. It’s a silent place where the snow is unmarked by footprints. In the Arctic winter, snow forms a continuous blanket across the land. But as spring creeps up from the south, the taiga is unveiled. This vast forest circling the globe contains a third of all the trees on earth and produces so much oxygen, it changes the composition of the atmosphere.
 

n.苔原,冻土地带
  • The arctic tundra is at the top of the world around the North Pole.北极冻原是指北极点周边的地区,是世界最高的地方。
  • There is a large amount of methane gas under the Siberian tundra.西伯利亚的冻土地带之下有大量的甲烷气体。
adj.矮小的;发育迟缓的
  • the stunted lives of children deprived of education 未受教育的孩子所过的局限生活
  • But the landed oligarchy had stunted the country's democratic development for generations. 但是好几代以来土地寡头的统治阻碍了这个国家民主的发展。
灌木( shrub的名词复数 )
  • The gardener spent a complete morning in trimming those two shrubs. 园丁花了整个上午的时间修剪那两处灌木林。
  • These shrubs will need more light to produce flowering shoots. 这些灌木需要更多的光照才能抽出开花的新枝。
adj.不能吃的,不宜食用的
  • The food was totally inedible.食物完全无法下咽。
  • These chemicals make the fruit inedible.这些化学品使这种水果不宜食用。
学英语单词
abattage
abustle
african-born
arceye
arched bridge
asco-gyro
assembled milling cutter
auctioneer's hammer
beamformed
branch fault
breed true to the type
brunswick stews
by-corner
coated nonmetallic tape
Cocladene
consumptive power
controlled-speed generator
CTCO2
cycadite
day day up
dead zone control
degenerative circuit
ditch rider
double stops
drawing pen holder
drip feed carburizer
east timors
Eccoilopus formosanus
ectospermina
elephant's trunk
energetic particle instrument
Fareham reds
frame stress
gadinin
gormandised
Grüsch
gully head erosion
hair wire
heat liberation per unit furnace volume
heat pipe solar water heater
honeycomb coral
impertinacy
ionization of gas
Jiri
Kobresia yushuensis
large diameter coaxial cable
leaching process
light saturation
lumber export
magnetism separation
microcoulometric gas chromatography
minifilms
myoepithelial tumor
oil heated brooder
oil-immersed type reactor
omotoso
on sb's mind
Ord kangaroo rat
Panchen Lama
pericleans
peziculoid
phaneritic
pharmaceutical chemistry
preliminary analysis
primogenital
proof of transport
protection ring
PVOD
quasiconvex
radioland
radiomagnesium
reference ship
reversing sleeve
rime break
RNase protection assay
Robitab
safo
San José, Is.
separated fuel injection pump housing
shift point
silicates classification
standard disk plough
standard source
Statutory debt limit
superbowls
syllabizes
tempory
texensis
throttle dashpot
tocks
trial displacement
Tuberite
tule elk
uk -mad
unconstant
upper 'tween deck
veeno
Viaian plexus
washbasin
went off the deep end
wolfsons
xylosides