时间:2019-01-17 作者:英语课 分类:2017年NPR美国国家公共电台4月


英语课

 


LOURDES GARCIA-NAVARRO, HOST:


OK, now for some cute but worrying science from the animal world. The Santa Monica Mountains National Recreation Area posted a photo earlier this week that is insanely adorable. It's of a newly found mountain lion kitten. Its eyes are still a milky 1 blue. But the birth of the kitten amidst the urban sprawl 2 of Southern California is exciting to wildlife lovers and biologists. But there's a sobering element to this story, as NPR's Nathan Rott found out.


NATHAN ROTT, BYLINE 3: Operation kitten chase.


With our guide...


JEFF SIKICH: I'm Jeff Sikich, biologist for the National Park Service.


ROTT: ...And resident expert, Sikich has been tracking mountain lions in these steep chaparral-covered canyons 5 almost daily for more than a decade, hiking or driving, like we are today, along the maze 6 of busy freeways and residential 7 roads and homes that surround, bisect and crisscross this National Recreation Area.


SIKICH: Yeah, we're the largest urban national park.


ROTT: With the Pacific Coast on one side and the greater Los Angeles sprawl on the other, it's a big deal, Sikich says, that these large carnivores are able to successfully breed.


SIKICH: So I'm plugging her frequency in now.


ROTT: Sikich has already tagged the kitten we're looking for - P-54, as she is named - with a tiny VHF transmitter.


SIKICH: Yeah, so that's her. Right there you can hear that pulse rate going.


ROTT: Which means the kitten is somewhere in the scrub nearby. Now, I'm not going to bury the lead any more here for you. We're not going to actually see this kitten. She's down to the bottom of a steep overgrown canyon 4, best as we can tell, and Mom is there too, so not really a good idea to go marching in.


Knowing that I won't see the kitten, can you confirm for me, how cute is it?


SIKICH: They're...


ROTT: You don't audibly go awww.


SIKICH: I don't think I do. No, I don't. But it's definitely, you know, it's super cute cool.


ROTT: Oh, do you hear that? He almost said it. But really, this isn't entirely 8 a feel-good story. More than likely, P-54, our cute little kitten, is the result of inbreeding because this place is like an island. Surrounded by all those people and roads, mountain lions have a nearly impossible time coming and going, which limits the available gene 9 pool. That can lead to birth defects.


SIKICH: Holes in the heart besides, like, kinked tails and colics.


ROTT: Sikich says they've seen that with the Florida panther. And research shows that if nothing changes here, the Santa Monica mountain lions could get to the same point in just 35 years. From there, he says...


SIKICH: We can see pretty much 99 percent extinction 10 within 15 years on average.


ROTT: The park service and outside groups have been lobbying for a nature overpass 11 that would give wildlife a bridge from these mountains to others that would hopefully allow for more genetic 12 diversity and give our cute little kitten, P-54, more of a chance. Nathan Rott, NPR News.



adj.牛奶的,多奶的;乳白色的
  • Alexander always has milky coffee at lunchtime.亚历山大总是在午餐时喝掺奶的咖啡。
  • I like a hot milky drink at bedtime.我喜欢睡前喝杯热奶饮料。
vi.躺卧,扩张,蔓延;vt.使蔓延;n.躺卧,蔓延
  • In our garden,bushes are allowed to sprawl as they will.在我们园子里,灌木丛爱怎么蔓延就怎么蔓延。
  • He is lying in a sprawl on the bed.他伸开四肢躺在床上。
n.署名;v.署名
  • His byline was absent as well.他的署名也不见了。
  • We wish to thank the author of this article which carries no byline.我们要感谢这篇文章的那位没有署名的作者。
n.峡谷,溪谷
  • The Grand Canyon in the USA is 1900 metres deep.美国的大峡谷1900米深。
  • The canyon is famous for producing echoes.这个峡谷以回声而闻名。
n.峡谷( canyon的名词复数 )
  • This mountain range has many high peaks and deep canyons. 这条山脉有许多高峰和深谷。 来自辞典例句
  • Do you use canyons or do we preserve them all? 是使用峡谷呢还是全封闭保存? 来自互联网
n.迷宫,八阵图,混乱,迷惑
  • He found his way through the complex maze of corridors.他穿过了迷宮一样的走廊。
  • She was lost in the maze for several hours.一连几小时,她的头脑处于一片糊涂状态。
adj.提供住宿的;居住的;住宅的
  • The mayor inspected the residential section of the city.市长视察了该市的住宅区。
  • The residential blocks were integrated with the rest of the college.住宿区与学院其他部分结合在了一起。
ad.全部地,完整地;完全地,彻底地
  • The fire was entirely caused by their neglect of duty. 那场火灾完全是由于他们失职而引起的。
  • His life was entirely given up to the educational work. 他的一生统统献给了教育工作。
n.遗传因子,基因
  • A single gene may have many effects.单一基因可能具有很多种效应。
  • The targeting of gene therapy has been paid close attention.其中基因治疗的靶向性是值得密切关注的问题之一。
n.熄灭,消亡,消灭,灭绝,绝种
  • The plant is now in danger of extinction.这种植物现在有绝种的危险。
  • The island's way of life is doomed to extinction.这个岛上的生活方式注定要消失。
n.天桥,立交桥
  • I walked through an overpass over the road.我步行穿过那条公路上面的立交桥。
  • We should take the overpass when crossing the road.我们过马路应走天桥。
adj.遗传的,遗传学的
  • It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
  • Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
学英语单词
acid coagulation test
acknowledgement of certificate
acoustic signature
adrenal cortical carcinoma
aerial circuit
Agboville
Almendral
aluminium borate
anicut
argal
Asti
back pressure turbine governing system
Batang Benar
bearing strip
benchpresses
Broadman's area 4
carbon-14 datings
cardamine pratenses
chill girls
cloggers
confederator
deep energy level
Delorme's operation
demissory
differential piece rate system
distinct root
dorted
draw blank
educacin
ex-soldiers
excess air ratio
expenditure lag
factorially
flat rolled steel bar
fordlyson
Freudian slip
Gaurīnagar
germinative power
glycyrrhiza squamulosa franch.
gyri fusiformis
harpy eagle
HMMWVs
income other than cash
intensive cares
interamnian
iodide tubocurarine
isothermal remanent magnetism
laisser-faire
LCTL (Large Component Test Loop)
legal mechanism
local pattern matching
Louisa May Alcott
magnesium bismuthide
manually angled cutter
maximum credit limit (mcl)
midregion
morphinomaniacs
morum macandrewi
Mouchoir Bk.
multi-cable socket
multiply by
nervi ilioinguinalis
Nicolai, Carl Otto Ehrenfried
nolvascin
NSC-85998
order pandanaless
ovarian steroidogenesis
parabaliothrips coluckus
passaro
peritectic spheroidizing
peterhofs
pore ring
positioning format item
potoplast
Prince Regent R.
RIVS
rooky
sapple
saturation characteristics
schorlaceous
scodgy
seashells
secure currency
SJFHQ-N
St-Gély-du-Fesc
steeked
step-by-step carry
storecards
stores control
swallowable
the game of go
theory of indicators
trading limit
Trichogasterinae
uniplus
venialness
vulcanoids
waxy flexibility
what's on your mind
wheel lubricator
worldlinesses