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Volunteers Keep Hands-On Science Alive in US Classrooms When it comes to making science fun, Lisa Purcell is a pro. Mimicking an owl or a foraging squirrel is all in a day's work for the director of the Four Winds Nature Institute. On this particular

发表于:2018-12-16 / 阅读(450) / 评论(0) 分类 VOA标准英语2011年(五月)

1.有趣的漫画 What will this small seed grow into? 这颗小种子长大会变成什么? It will grow into a big tree. 它会长成一棵大树。 What will these small tadpoles into? 这些小蝌蚪长大会变成什么? They will grow into

发表于:2018-12-31 / 阅读(485) / 评论(0) 分类 Sight Word Kids 幼儿英语常见字5A

This is Scientific Americans 60-Second Science, Im Karen Hopkin. This will just take a minute. Blackjack, slot machines, good ol Texas holdem. People love to gamble. And were not the only ones. A new study shows that pigeons will also pass up a sure

发表于:2019-01-08 / 阅读(504) / 评论(0) 分类 Scientific American(十)月

LULU GARCIA-NAVARRO, HOST: In central Montana, drones are dropping peanut butter pellets on prairie dog colonies. As Yellowstone Public Radio's Nate Hegyi explains, it's part of an effort by biologists to save North America's most endangered mammal.

发表于:2019-01-16 / 阅读(513) / 评论(0) 分类 2017年NPR美国国家公共电台12月

They found Star by chance, just in time. These animal welfare officers in Malta had been dealing with a separate case of an abandoned dog when they heard whimpering under the ground. They followed the noise, saw the tip of Star's nose and started dig

发表于:2019-02-04 / 阅读(401) / 评论(0) 分类 英伦广角
学英语单词
adiabatic horse-power
admissible operation
allocation of costs
angiomyoneuroma
antigua i.
Ascari
augmented unisons
authorization agent
Baolo
beaded reducing elbow
beckon
blasting powder
bonded exhibition ground
British candle
buried hole
butcher-block
carbamoyls
Chinese sumac fruit
concrete joint grinder
continental connection
countercyclical
cross-fertilizes
deboshing
diode pumping
Dipteronia sinensis
dishwasher safe
ditolylguanidine
double-stick
drizzleable
Eymet
FB. freight bill
fleece-o
fluorescent screen
frame up
fridtjof nansens
g.f
Gizeh
globulolysis
gnu hierarchy
helobios
helveous
Henneberg reflex
hygrotaxis
indolyl
Katsuragi
kinfolks
lamellar cataract
Leminorella
level of nozzle face
line conch
linear taper
majority language
make a ruling by summary
mouthward
muon polarization
nerelimomab
nijazi
no-wear EDM
non consumable arc welding electrode
not to go into past misdeeds
nuchal eminence
orthogonal cutting
p20
pagri cloth
paper and board
penicillanic
personal resources
phsphorylcholine
plank buttress
ploghe
poison-trees
process time
psychological experiment
Quesnel
rakauskas
real expenditure
remote sensing of oil pollution
rib and panel arch
salt finger
search languages
section purging
siggeir
sodaclase-keratophyre
solidification brittleness
Spemaiophyla
static wheel load
strepsilin
sum of roots
tagoe
tangentially fired soaking pit
tank work
taxo-
throw sth into the shade
total insertion loss
triply-degenerate
tropylium ion
Tuberite
turbidity coefficient
ultraphytoplankton
unidirectional flow wall module
unit operation cost
zhoushan