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
5-hydroxymethylcytosine
accumbrance
altocumulus clouds
antimony chloride test
antitemperance
arious
attend to somebody
blaubok, blauwbok
buddings
caudal sensory organ
Clathrinidae
cold marrinaden
constitutive relationship
consumer oriented economy
corner-fired boiler
cricothyroid laryngotomy
crude analysis
darbukah
degree of stability
deguming
deject
diolglycolipid
disciplinary action
earnings inequality
El Cubo, R.
electrooptical modulator
elevating belt
English legal system
ergotinic acid
family Lycaenidae
Fibrochondrogenesis
fin drum dryer
fitting joint
flea-brained
food technologist
from the year one
gallistel
gas conservation
geomathematics
gill reducer
good-mornings
grant market shares
hand-crafted
have a fit of fits
hollow fiber permeator
horseshoe nail
house hold tax
i-sowe
impermeable wall
Incotec
incubo
indoor climbing
Information bit.
invertebrate paleontology
isocrotyl chloride
job mixing
keep hope alive
Kyanda
lamb vector
larvule
life adjust ment factor
low pressure zone
marketing material
materials standardization
metalimnions
miscellaneous vessel
Mogyopyit
multiunit drill
nabbie
nanoid
not stand the ghost of a chance
patines
paund)
Pedicularis nigra
perithecicolous
polite company
polyarsenite
preliminary comparison
properties of estimator
Pueblo Marini
pulvicoria
re-traced
ribulokinase
rift-sawed
Salvia baimaensis
scalable coherent interface
second order goals
second-degree burns
shambocks
spatial invariance
Steiner's tnmors
sub-lettings
takydromus kuehnei
Tawhla
the avant-garde
to fish in the air
turbopropeller plane
undercalculated
uniform-chromaticity scale diagram
ventricular isometric contraction time
worn spot
yellow glaze vase with white floral design