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
2-hydroxyethyl acrylate
a mob
access authorization
accretion of bottom
acknowledging time
aerial archarology
alkynyl group
alternate mark inversion code
apical foramina
as good as it gets
back-swing
Biphenyl-dimethyl
bird watcher
block busting
body catches
Brixlegg
carbonizing faults
chaenomeles speciosa nakai
classification of industry branches
compression type refrigerating unit
coprotagonists
cover carriage crane
crankshaft rotation
cucumber green glaze
cut-to-length line
cyanidation test
Dalriada
delclos
emission of radiation
endogastricus
entertained
ephemeropteras
Ericsson selector
esophagography
expense allocations
fanful
fillet weld in the horizontal position
filoplume
free-water surface correction coefficient
Fujimi
Gargnano
gaucheries
give room
glass-ceiling
gravity-controlled instrument
half sister-in-law
helium gas thermometer
holly family
hot-stopping
house-lamb
hyperkeratosis subungualis
index of radicals
introgress
isobutylene resin
kangasaurs
lane identification frequency
leucopterus
longcase
low baking temperature
magnetic stability
Mangualde
metal polish
miniondom
modern-type
MTIR
neo-modern
Nitrosocytis
Ordimel
out-of-band data
Pedicularis lecomtei
per mill
phone back
preference changes
rotatrol
Royal Military Canal
Sabanilla, Pta.
saffron glucoside
samaric carbonate
setting accuracy
shikonin
similarity theory
simulative electronic deceptions
ska punk
snow eater
spatial colour encoding
speak ... language
tai-otoshi
Tennessean
terracers
tersanctus
The Bubble Act
titanbiotite
triumph over
two-element resistively probe
type of enterprise
utriculus masculinus
Vasset
Vinchiaturo
within the hour
yaldwynopsis saguili
yes sir!
zambomba