时间:2018-12-30 作者:英语课 分类:国家地理2007年


英语课
We are here in the wilderness 1 in the Rocky Mountains, observing nature's impressive architects and engineers: beavers 2. By creating this pond they are preventing soil from being washed away and they are creating a place where new plants and insects can flourish.

Beavers think ahead and secure their foods supply long before they'll need it. They drag these branches into the water where they will stay fresh and accessible during the winter freeze.

Flash forward to the winter freeze, when the frigid 4 temperature has turned the mud and sticks into a secure shelter for the beavers. Each dwelling 5 house is a single beaver 3 family. Yep, with a mom and dad and, did I mention beavers mate for life? And each home has an elegantly designed passageway to the lake. Beavers are North America's largest rodent 6. And they are the only ones with skin flaps behind their teeth that allow them to hold branches without swallowing water. Notice how neatly 7 the beaver eats, stripping the bark by turning the branch like an ear of corn. They are strict but voracious 8 vegetarians 9 and can even digest the soil lodes that most mammals just can't handle.

Flash forward again to the following spring, and spring has sprung a leak in the dam. So dad stays with the young ones while mom and her elder son fix it up. This is lucky for all the other animals around because virtually, the entire ecosystem 10 is dependent on the dam and the resulting pond.

Wouldn't it be great if we could all be as industrious 11 and efficient as the eager beavers?


n.杳无人烟的一片陆地、水等,荒漠
  • She drove the herd of cattle through the wilderness.她赶着牛群穿过荒野。
  • Education in the wilderness is not a matter of monetary means.荒凉地区的教育不是钱财问题。
海狸( beaver的名词复数 ); 海狸皮毛; 棕灰色; 拼命工作的人
  • In 1928 some porpoises were photographed working like beavers to push ashore a waterlogged mattress. 1928年有人把这些海豚象海狸那样把一床浸泡了水的褥垫推上岸时的情景拍摄了下来。
  • Thus do the beavers, thus do the bees, thus do men. 海狸是这样做的,蜜蜂是这样做的,人也是这样做的。
n.海狸,河狸
  • The hat is made of beaver.这顶帽子是海狸毛皮制的。
  • A beaver is an animals with big front teeth.海狸是一种长着大门牙的动物。
adj.寒冷的,凛冽的;冷淡的;拘禁的
  • The water was too frigid to allow him to remain submerged for long.水冰冷彻骨,他在下面呆不了太长时间。
  • She returned his smile with a frigid glance.对他的微笑她报以冷冷的一瞥。
n.住宅,住所,寓所
  • Those two men are dwelling with us.那两个人跟我们住在一起。
  • He occupies a three-story dwelling place on the Park Street.他在派克街上有一幢3层楼的寓所。
n.啮齿动物;adj.啮齿目的
  • When there is a full moon,this nocturnal rodent is careful to stay in its burrow.月圆之夜,这种夜间活动的啮齿类动物会小心地呆在地洞里不出来。
  • This small rodent can scoop out a long,narrow tunnel in a very short time.这种小啮齿动物能在很短的时间里挖出一条又长又窄的地道来。
adv.整洁地,干净地,灵巧地,熟练地
  • Sailors know how to wind up a long rope neatly.水手们知道怎样把一条大绳利落地缠好。
  • The child's dress is neatly gathered at the neck.那孩子的衣服在领口处打着整齐的皱褶。
adj.狼吞虎咽的,贪婪的
  • She's a voracious reader of all kinds of love stories.什么样的爱情故事她都百看不厌。
  • Joseph Smith was a voracious book collector.约瑟夫·史密斯是个如饥似渴的藏书家。
n.吃素的人( vegetarian的名词复数 );素食者;素食主义者;食草动物
  • Vegetarians are no longer dismissed as cranks. 素食者不再被视为有怪癖的人。
  • Vegetarians believe that eating meat is bad karma. 素食者认为吃肉食是造恶业。
n.生态系统
  • This destroyed the ecosystem of the island.这样破坏了岛上的生态系统。
  • We all have an interest in maintaining the integrity of the ecosystem.维持生态系统的完整是我们共同的利益。
adj.勤劳的,刻苦的,奋发的
  • If the tiller is industrious,the farmland is productive.人勤地不懒。
  • She was an industrious and willing worker.她是个勤劳肯干的员工。
标签: 国家地理 海狸
学英语单词
a current account
absolute strabismus
alboll
antibody binding site
Antisanti
Barking Dogs
basis of allocation
batch pellet
be under review
bipack process
bips
bor.
box-on-box type substructure
broken tea
bucket trench digger
callerer
cantilever plate
Centropristis philadelphica
cold-mixed asphaltic concrete
compass card axis
current detector
delta fornicis
demodulating system
demoness
Denakil(Dankali)
depositional sequecne
dermatophilus disease
diffuser casing
distributed operating system
dribble test equipment
ediblest
effective percentage
elastorheodynamic
evening entertainment
experimental fluid mechanics
feed back control
fibrinopurulent
financial-inclusion
fixation bath
forceps base
Forgot password
furnace slag
germanous
grass-roots deposit
Guadarranque
harlequin-snake
height of tractive-effort transmission
hermap-hroditism
humanized design
hydra-headed
hydrolyzed yeast
idle capacity loss
illonas
importance of flare
inbound logistics
inconsumably
jenkinses
karite butter
keep doing
knuckle ball
leucomatous
LeWitt, Sol
logical reason
luminosity of night sky
Makassar
marmezin
mass appeal
merenskyite
metabolic cell
middle entrance
midword
Missouri Botanical Garden
moon letter
Morrison Formation
multifeeler casing caliper
neuendorf
numerical forms file
pan amalgamator
Pangchon
parity check matrix
pawl bitt
people in system development
r-f emission band-width
rated power of wind turbine generator set
regressive supply
resultant field
rock coast
sampling thief
shmily
speed stackings
spiral prominence
state of section
stockboy
superhuge computer
Tessalon
transistorise
trionyx spiniferuss
warm-front fog
welker
wittiful
yiwu
ziesite b