时间:2019-01-25 作者:英语课 分类:VOA标准英语2010年(二月)


英语课

Time again for our Website of the Week, when we showcase interesting and innovative 1 online destinations.


This time it's an educational site where principles of physics are illustrated 2 with interactive 3 animated 4 experiments that you can perform on your own computer.




"The PhET website is a collection of 85 simulations for teaching and learning science. So our main goal is to help students better understand the science of the world around them, but instead of telling students how something works, our simulations let them discover important science concepts for themselves and really learn and engage through scientist-like exploration," says Kathy Perkins.


Perkins is co-director of the Physics Education Technology, or PhET Interactive Simulations website.


Despite the name, the site includes animated simulations in biology, chemistry, and other disciplines, as well as physics. You can build your own solar system, model the hydrogen atom, or explore the properties of a gas as you change its temperature and other variables.


Another simulation allows you to design and modify a simple electrical circuit.


"So when you open up, you can drag out wires and batteries and bulbs," explains Perkins. "And as you connect them, as soon as you complete a circuit, you'll see the light bulb light up and the electrons shown in the wires circulate around the circuit."


The simulations look like entertainment, but Perkins says the design of each has been tested for its educational value.


"And then we do user testing with students, to ensure that the user interface 5 is easy to use, and that the visual representation and the controls we include in the simulation actually leads to a correct interpretation 6 of the underlying 7 science."


The simulations can be used in the classroom, and the site has materials to help teachers make best use of it. Or you can just run the sims and learn by doing online at phet.colorado.edu, or visit our site, VOAnews.com, for the link to this and hundreds of other Websites of the Week. 


 



adj.革新的,新颖的,富有革新精神的
  • Discover an innovative way of marketing.发现一个创新的营销方式。
  • He was one of the most creative and innovative engineers of his generation.他是他那代人当中最富创造性与革新精神的工程师之一。
adj.相互作用的,互相影响的,(电脑)交互的
  • The psychotherapy is carried out in small interactive groups.这种心理治疗是在互动的小组之间进行的。
  • This will make videogames more interactive than ever.这将使电子游戏的互动性更胜以往。
adj.生气勃勃的,活跃的,愉快的
  • His observations gave rise to an animated and lively discussion.他的言论引起了一场气氛热烈而活跃的讨论。
  • We had an animated discussion over current events last evening.昨天晚上我们热烈地讨论时事。
n.接合部位,分界面;v.(使)互相联系
  • My computer has a network interface,which allows me to get to other computers.我的计算机有网络接口可以与其它计算机连在一起。
  • This program has perspicuous interface and extensive application. 该程序界面明了,适用范围广。
n.解释,说明,描述;艺术处理
  • His statement admits of one interpretation only.他的话只有一种解释。
  • Analysis and interpretation is a very personal thing.分析与说明是个很主观的事情。
adj.在下面的,含蓄的,潜在的
  • The underlying theme of the novel is very serious.小说隐含的主题是十分严肃的。
  • This word has its underlying meaning.这个单词有它潜在的含义。
学英语单词
Agelena
anagrammatizes
architectonically
astragalocrural
auditability
band sequence
banker's payment
barstad
be upon one's good behaviour
Brovst
Brunei dollar
bushwhackers
camattinis
care centre
cash account method
center-point
chafing at the bit
chicken Tetrazzini
chien ch'i wu
contiguous gene syndrome
cup nib bolt
cylicotomy
DC analog computer
decrease with
demiculverin
device queue
differentiator circuit
displacement behavio(u)r
double-break contact assembly
echocardiologe
electronic blood counter
ex ship sale
fake set
feni, fenny
fine structure
fisheries harbor
fritchey
have the speed
haze factor
hydraulic cushion guardrail
industrial power
ion beam scanning
isobath map
Kanteans
Kilboghamn
law-book
Lemstrom machine
linolenin
Liu Yi San
lyke-wake
manganese-alumina pink
moonest
myrothecium roridum
nuclear power project planning
old building
open crank case
opprest
papilloma of bladder
parameter of thermodynamic state
parcel stamp
peritonitis of newborn
phutz
piest
Pochon-dong
pooled resource
porrigo furfurans
pressly
prime system
pulse code modulator
pythons
ragg
rear-facings
Recknagel phenomenon
rhenium monoxide
rhiotin
Roseanne
Santa Catalina Island
second derivative map
selectivity of fertilization
self report inventory
single-phase arc welding transformer
sliding bearing sleeve
sordidous
spooling winch
stallworthe
step by step roller spot welding
subterfuge
swindle of
thaa
turn-key contract
unaddicted
unified messaging system
uranphyllite (torbernite)
urecchysis
Uva, R.
Vangard
vinovo porcelain
vrx
Watkins Glen
well-examined
winamac
zero crossing