时间:2018-12-30 作者:英语课 分类:国家地理2007年


英语课
A stretch of road known as America's loneliest highway seems the perfect place to ignore the speed limit. But for those who slow down, Nevada's high desert reveals its unexpected side.

Great Basin National Park is home to Lehman Caves. Lehman Caves was a tourist attraction long before there was a national park here. Visitors used to break off pieces of these delicate formations and take them home as souvenirs.

"To tell you the truth, the best way to conserve 1 a cave is not to go in it."

That's the dilemma 2 posed by the national park mission. Parks exist both to preserve natural wonders and to be enjoyed by people, even with relatively 3 few visitors that poses a problem.

"Humans impact caves in ways that, that sometimes we can't even fathom 4. Like every time we walk through a cave we leave, we leave wet from our clothing, and that the oils from our hands can irreversibly damage formations."

Even the lights that allow people to see the cave can help destroy what took millions of years to create.

"The lights we currently use are incandescent 5, so there are kind of a full spectrum 6 white light, and the problem with that is that they facilitate the growth of algae 7."

That's why studies are underway to develop a less damaging lighting 8 system . This type of science benefits from the park's isolation 9. It's unlikely that Great Basin will be overrun by hordes 10 of visitors anytime soon, but each year it seems there are more of us seeking solitude 11.


vt.保存,保护,节约,节省,守恒,不灭
  • He writes on both sides of the sheet to conserve paper.他在纸张的两面都写字以节省用纸。
  • Conserve your energy,you'll need it!保存你的精力,你会用得着的!
n.困境,进退两难的局面
  • I am on the horns of a dilemma about the matter.这件事使我进退两难。
  • He was thrown into a dilemma.他陷入困境。
adv.比较...地,相对地
  • The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
  • The operation was relatively painless.手术相对来说不痛。
v.领悟,彻底了解
  • I really couldn't fathom what he was talking about.我真搞不懂他在说些什么。
  • What these people hoped to achieve is hard to fathom.这些人希望实现些什么目标难以揣测。
adj.遇热发光的, 白炽的,感情强烈的
  • The incandescent lamp we use in daily life was invented by Edison.我们日常生活中用的白炽灯,是爱迪生发明的。
  • The incandescent quality of his words illuminated the courage of his countrymen.他炽热的语言点燃了他本国同胞的勇气。
n.谱,光谱,频谱;范围,幅度,系列
  • This is a kind of atomic spectrum.这是一种原子光谱。
  • We have known much of the constitution of the solar spectrum.关于太阳光谱的构成,我们已了解不少。
n.水藻,海藻
  • Most algae live in water.多数藻类生长在水中。
  • Algae grow and spread quickly in the lake.湖中水藻滋蔓。
n.照明,光线的明暗,舞台灯光
  • The gas lamp gradually lost ground to electric lighting.煤气灯逐渐为电灯所代替。
  • The lighting in that restaurant is soft and romantic.那个餐馆照明柔和而且浪漫。
n.隔离,孤立,分解,分离
  • The millionaire lived in complete isolation from the outside world.这位富翁过着与世隔绝的生活。
  • He retired and lived in relative isolation.他退休后,生活比较孤寂。
n.移动着的一大群( horde的名词复数 );部落
  • There are always hordes of tourists here in the summer. 夏天这里总有成群结队的游客。
  • Hordes of journalists jostled for position outside the conference hall. 大群记者在会堂外争抢位置。 来自《简明英汉词典》
n. 孤独; 独居,荒僻之地,幽静的地方
  • People need a chance to reflect on spiritual matters in solitude. 人们需要独处的机会来反思精神上的事情。
  • They searched for a place where they could live in solitude. 他们寻找一个可以过隐居生活的地方。
学英语单词
acetaldols
air-locks
airflow organization
amica
amperil
army ballistic missile agency
auto-correlated population
ballutes
baluster cover flange
basis trading
birliks
blade failure and repair
bresewort
brush reader
bulletheaded
by reference to
Carex riparia
cell heredity
centrifugal casing
chemicalze
ciniferol
conical shell ring
contactless measurement
copycutter
corset liver
cortes de aragon
cr.
craft and/or lighter risks
cryoextractors
curdies
deairing plaster
declinating station
depo-testosterone
Depromic
dicarboxylic cide
Doridene
elevation of boiling point
elliptical tip
embreaded
enquiry/response processing
exempt from consumption tax
exordia
ferrying flight
FITCE
flange type motor
flush-filled joint
galah
half close
halkin
immunomorphology
initial landform
irreversible system
Khakandzha
L-3428
lithium-sulphur battery
look down at
loose-leaf book
Love is blind.
mating period
Mauricio
miclo
misbeseem
movement schedule
node kernel
oldling
operation manaul
payroll cost
penile tuberculid
phono cartridge
protocol
pulse curve
reactivate association
red quebracho (aspidosperma quebracho colorada)
reheals
repro proof
resettles
reversed limb
row crop thinner
rye malt
Sayre'sjacket
scutching
Shelvey
signal white light
soft package
squelchy
steam humidification
still video transmission
strata granulosum ovarii
strickle board
subsegment counter
sums of squares
tapadera
tape perparation
theme-pubs
tiarate
unbarbed
unfaithfully
unvisible
vigiest
Villamor de los Escuderos
whalsay (whalsay i.)
whiff waff