时间:2018-12-24 作者:英语课 分类:Scientific American(六)月


英语课

This is Scientific American’s 60-Second Science, I’m Karen Hopkin. This will just take a minute.


Last month, President Obama pledged nearly half a billion dollars toward the development of solar and geothermal energies, but what about wind? A team of scientists estimates that wind turbines in the continental 1 U.S. could produce 16 times more electricity than we currently use. They present their data in the current Proceedings 2 of the National Academy of Sciences. We all know that wind can be harnessed to do work. But this power source can be a bit fickle- today it might gust 3, while tomorrow could bring barely a breeze. So how much can we count on the movement of air to meet all our energy needs? The scientists used data from satellites, balloons, and aircrafts, to estimate wind speeds around the planet. They excluded cities, forests, and ice-covered areas, which would all be hard to harvest. Crunching 4 the numbers, they concluded that a global network of land-based turbines could make 40 times more electricity than the world currently consumes, even if they only operated at 20 percent of their capacity. People may balk 5 at the sight of a sea of wind turbines. And flying wildlife may be bollixed by the blades. But wind power’s benefits may blow away its problems.


 


Thanks for the minute for Scientific American’s 60-Second Science, I’m Karen Hopkin.


 



1 continental
adj.大陆的,大陆性的,欧洲大陆的
  • A continental climate is different from an insular one.大陆性气候不同于岛屿气候。
  • The most ancient parts of the continental crust are 4000 million years old.大陆地壳最古老的部分有40亿年历史。
2 proceedings
n.进程,过程,议程;诉讼(程序);公报
  • He was released on bail pending committal proceedings. 他交保获释正在候审。
  • to initiate legal proceedings against sb 对某人提起诉讼
3 gust
n.阵风,突然一阵(雨、烟等),(感情的)迸发
  • A gust of wind blew the front door shut.一阵大风吹来,把前门关上了。
  • A gust of happiness swept through her.一股幸福的暖流流遍她的全身。
4 crunching
v.嘎吱嘎吱地咬嚼( crunch的现在分词 );嘎吱作响;(快速大量地)处理信息;数字捣弄
  • The horses were crunching their straw at their manger. 这些马在嘎吱嘎吱地吃槽里的草。 来自《简明英汉词典》
  • The dog was crunching a bone. 狗正嘎吱嘎吱地嚼骨头。 来自《简明英汉词典》
5 balk
n.大方木料;v.妨碍;不愿前进或从事某事
  • We get strong indications that his agent would balk at that request.我们得到的强烈暗示是他的经纪人会回避那个要求。
  • He shored up the wall with a thick balk of wood.他用一根粗大的木头把墙撑住。
标签: SSS continental
学英语单词
adamantoma
afterburner thrust augmentation
Alevism
anallatism
articulated drop chute
Atelognathy
auto verify
bemsilk
blasucci
Boraphet, Bung
bosia
bothriderids
branch cycle
bry
bumps us
Busunya
cargo hook
carved wooden wall hanging
centistokes (cst)
chafetz
ciliary scleral staphyloma
classicalists
coagulating basin
coefficient of tide
color receptor
commoditisation
compages of thorax
compound-nucleus correction
consociation
construction business
corson
current excitation
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disanchoring
down bows
drawing passes
dry masher
ductuli lacrimales
electromagnetic
electronic -like
electronic device
extramural
Farnsworth dissector tube
farther afield
finishes with
flash joint of rods
formatting objects
Gamulin
goheen
hawse box
heat flush
high-returns
hokypoky
host-density
hot-water rinse
hydroxyderivatives
hypochromatosis
intensive aspect
left, right and center
Leuchars
lifestreaming
lincoln-mercury
maculae cribrosa inferior
manganese(ii) linoleate
marfanoid
measure measures and weights
metering pin carburetor
mexican junipers
moidering
multi-choice item
nerve Bell's
neutron-deficient nu-cleus
nonflickering display
optimum environment
oxymyohematin
parallel pointing
platens
pocket chronometer
present wit
pseudo wet bulb potential temperature
quality-of-life
relational tree
replow
sand cats
Schultes bandage
shrinkage mark
stomach stone
subsidiary attack
symmetrical banded structure
taffetized fabric
the change of life
thermochemical remanent magnetization
three stage reduction
Trigonotis floribunda
tweenish
U-GEN
unreactivity
Vila Fernando
wage price spiral
waggon headed ceiling
window lickers