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
a double bind
Amgot
anolis carolinenses
apogee kick rocket engine
axinellids
axle load transfer
bank side
batch leaching
belly-timmer
bisy
blamed
boundary belt
brumoides ohtai
burnet roses
CCET
centralized railway traffic control system
changeabout
chromosomal sex
class Taxopsida
clear winged bugs
coheadliner
color-sync signal
confluctuate
cryptic remark
defertilized
deionize, deionized
delta attribute
dighton
drink deep of
environmental impact of hydraulic engineering
faites vos jeux
flight-refuel
furmint
gas detection
geophysical survey vessel
glossotrichia
gunson
Haimbach
heterozygous phage
heurisms
high altitude ir (hair)
high-speed cinematography
hydraulic cavitation
jutting
kickboxers
Kidjaboun
Land of the Stars and Stripes
leather texture
loparites
Lumby
lyolysis
magnesiun lime stone
MEKC
membrane osmometry
microlambert
more active
mos-gate controlled thyristor
nisaetus nipalensis nipalensis
non-Euclidean
oliarus yangi
orientation fall
overspeed safety cut-out system
Piedimonte Etneo
Pinebluff
plede
polled access network
primordial element
Psittacus
pulse reproducibility
radioisotopedetector
reinforced soil retaining wall
revolved around
rollio
ronchils
root development
rss (rasmussen report)
Saint-Brieuc
sdpp
seeping
Seismosaurus
shaped section
smirnite
splenoncus
spring bloom
standard measuring device
sticking places
striplights
suburban line
the accused
thorium decay series
topographico-
tread surface width
triphenyl-
trooposhere noisetemperature
undefinables
unigeniture
Vespoidea
vowelizing
with profit