时间:2019-01-14 作者:英语课 分类:VOA标准英语2014年(八月)


英语课

 


‘SharkFinder’ Brings Science Excitement to Classrooms 把科学带进教室


Science is advanced by professional researchers and scientists.  Yet, many believe that average citizens - including school children - can make contributions to scientific advancement 1


Two dedicated 2 citizen scientists created a program called SharkFinder, to bring the excitement of scientific discovery to classrooms. Their efforts were recently recognized by the White House.


Aaron Alford and Jason Osborne recently visited a fossil site along the Potomac River, 80 kilometers south of Washington, D.C. They both have had a passion for fossil hunting since they were kids.


Alford recalls how they met.  


“I was out fossil hunting along the bay one day. Jason walks up and says 'Hey, how are you doing?'  Before long, we figured out we were two country boys and we had a lot in common,” said Alford.


That was 12 years ago. Ever since, Osborne, now a mechanical engineer, and Alford, a public health researcher, have conducted underwater expeditions and donated their findings to museums.  Four years ago they co-founded the citizen science group, Paleo Quest, and designed several programs, including SharkFinder.


“The great thing about SharkFinder, the SharkFinder citizen science project, is we can bring the field research to the classroom,” said Osborne.


Alford explained, step-by-step, how it works.


“We're going to break this sample up, so we're going to run the material through the sifter 3, and what's left in the sifter we're going to put in the bucket and then that's what we are going to take to the students,” said Alford


In the classroom, students look at the sediment 4 under a microscope or a hand lens to see if they can find any shark or ray fossil remains 5 to send to scientists.  At a recent science and engineering festival, school children also looked through material Osborne and Alford had collected over the years.  


University of Maryland paleontologist Bretton Kent said the students save researchers a great deal of work.


"If they find any tooth that we think is significant that requires further study, they will receive a certificate stating that they found a scientifically significant specimen 6.  If that specimen is ultimately used in any paper, they get credit for finding that specimen in the professional publication,” said Kent.


Greyson Sequino, a seventh-grader at a Loudon County School outside Washington, is among the students who have received a certificate.


“I am very proud of myself for finding something. I didn’t think I actually would be able to find anything.  But now that I have this certificate, I think it is just encouraging me to be an archeologist,” said Sequino.


Osborne was honored as a Citizen Science Champion of Change by the White House last year. Looking back, he said it’s all about the science.


“We are not trying to build tons of paleontologists but we are trying to build tons of interest in science itself,” said Osborne.


Osborne and Alford hope to expand the SharkFinder program nationwide and globally as well.



n.前进,促进,提升
  • His new contribution to the advancement of physiology was well appreciated.他对生理学发展的新贡献获得高度赞赏。
  • The aim of a university should be the advancement of learning.大学的目标应是促进学术。
adj.一心一意的;献身的;热诚的
  • He dedicated his life to the cause of education.他献身于教育事业。
  • His whole energies are dedicated to improve the design.他的全部精力都放在改进这项设计上了。
n.(用于筛撒粉状食物的)筛具,撒粉器;滤器;罗圈;罗
  • She sifted thistles through her thistle-sifter. 她用蓟筛筛蓟。 来自《简明英汉词典》
  • This paper deals with a nitempering process of sifter mesh. 研究了一种筛片的软氮化工艺。 来自互联网
n.沉淀,沉渣,沉积(物)
  • The sediment settled and the water was clear.杂质沉淀后,水变清了。
  • Sediment begins to choke the channel's opening.沉积物开始淤塞河道口。
n.剩余物,残留物;遗体,遗迹
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
n.样本,标本
  • You'll need tweezers to hold up the specimen.你要用镊子来夹这标本。
  • This specimen is richly variegated in colour.这件标本上有很多颜色。
学英语单词
algorithmic test case generation
alleluiah
amantis nawai
angelfish device
ankle chain
anti-regulation
antifoulant
antigenic competition
apozai (zhob)
Application Compatibility Toolkit
ascomycete
assortment plan
autologin
automatic loader and unloader
badge card
battelling
biological oil-spill control
bogie spread
Bol'shaya Minya
calatrava
calyciod
Captain Ahab
Carson, Rachel
complementary mask
control-budget variance
coronational
corrosion protection equipment
curcolone
cystic hyperplastia
dialer
doctorFell
domiciling
double flashing light
drum printing machine
dwey
equalizing regulation
equityoil
Erechtites hieracifolia
General Association of Regular Baptist Churches
Glossogobius
gravity classifier
great-great-great-grandfather
ground neutral
Hanchon
Harbarnsen
Heliophilum
heterotopology
hexacid
high energy grounding
high-velocity loop
hydroaromatic compound
jail-birds
kadunas
L-praziquantel
leptolejeunea truncatifolia
letter boxes
Lookout Pt.
loose suppressible point frame
lrcp
marker buoy
maternity-leave
medical screening
Merklingen
minikins
MMAMT
multi-membered
Naujac-sur-Mer
off-the-book loan
peaceable
percentage of motile spermatozoa
phthalyl sulfamethoxypyridazine
pipe die
pitch tube
positive negative bipolar
production adjustment
programme element
pyrolytic layer
quadrimular
relief hole
remote control foot pedal
RevPAR
rezeroing
sentence conjunction
serf-esteem
shielded cathode
single-layer routing problem
solution gas drive
spring adjusting screw
sudsing up
swordfights
tap web
thistlelike
tie up capital
tight cooperage stock
tonal density
transmission film
two anchor mooring
unblinking
urocyon cinereoargenteuss
Vesperus
volume diffusion
went beyond