时间:2019-01-11 作者:英语课 分类:VOA慢速英语2008年(一)月


英语课

This is the VOA Special English Education Report.


Knowledge is free on the Internet at a small but growing number of colleges and universities.


About one hundred sixty schools around the world now offer course materials free online to the public. Recent additions in the United States include projects at Yale, Johns Hopkins and the University of California, Berkeley.


 
MIT physics professor Walter Lewin with a demonstration 1 of mechanical energy
Berkeley said it will offer videos of lectures on YouTube. Free videos from other schools are available at the Apple iTunes store.


The Massachusetts Institute of Technology became an early leader with its OpenCourseWare project, first announced in two thousand one. Free lecture notes, exams and other resources are published at ocw.mit.edu. Many exams and homework assignments even include the answers. The Web site also has videos of lectures and demonstrations 2.


Today, OpenCourseWare offers materials from one thousand eight hundred undergraduate and graduate courses. These range from physics and linear algebra 3 to anthropology 4, political science -- even scuba 5 diving.


Visitors can learn the same things M.I.T. students learn. But as the site points out, OpenCourseWare is not an M.I.T. education. Visitors receive no credit toward a degree. Some materials from a course may not be available, and the site does not provide contact with teachers.


Still, M.I.T. says the site has had forty million visits by thirty-one million visitors from almost every country. Sixty percent of the visitors are from outside the United States and Canada.


There are links to materials translated into Spanish, Portuguese 6, Chinese and Thai. OpenCourseWare averages one million visits each month, and the translations receive half a million more.


Students and educators use the site, including students at M.I.T. But the largest number of visitors, about half, are self-learners.


Some professors have become well known around the world as a result of appearing online. Walter Lewin, a physics professor at M.I.T., is especially popular. Fans enjoy his entertaining demonstrations.


M.I.T. OpenCourseWare now includes materials for high school. The goal is to improve education in science, technology, math and engineering.


And that's the VOA Special English Education Report, written by Nancy Steinbach. Let us know if you have taken any free online courses through an American college or university. Tell us what you liked or disliked about your experience. Write to special@voanews.com, and please include your name and where you are from. I'm Bob Doughty 7.


 



n.表明,示范,论证,示威
  • His new book is a demonstration of his patriotism.他写的新书是他的爱国精神的证明。
  • He gave a demonstration of the new technique then and there.他当场表演了这种新的操作方法。
证明( demonstration的名词复数 ); 表明; 表达; 游行示威
  • Lectures will be interspersed with practical demonstrations. 讲课中将不时插入实际示范。
  • The new military government has banned strikes and demonstrations. 新的军人政府禁止罢工和示威活动。
n.代数学
  • He was not good at algebra in middle school.他中学时不擅长代数。
  • The boy can't figure out the algebra problems.这个男孩做不出这道代数题。
n.人类学
  • I believe he has started reading up anthropology.我相信他已开始深入研究人类学。
  • Social anthropology is centrally concerned with the diversity of culture.社会人类学主要关于文化多样性。
n.水中呼吸器
  • I first got hooked on scuba diving when I was twelve.12岁时我开始迷上了带水中呼吸器潜水。
  • While on honeymoon in Bali,she learned to scuba dive.她在巴厘岛度蜜月时学会了带水肺潜水。
n.葡萄牙人;葡萄牙语
  • They styled their house in the Portuguese manner.他们仿照葡萄牙的风格设计自己的房子。
  • Her family is Portuguese in origin.她的家族是葡萄牙血统。
adj.勇猛的,坚强的
  • Most of successful men have the characteristics of contumacy and doughty.绝大多数成功人士都有共同的特质:脾气倔强,性格刚强。
  • The doughty old man battled his illness with fierce determination.坚强的老人用巨大毅力与疾病作斗争。
标签: voa 慢速英语
学英语单词
a gemini
Addtl
aligning microscope
appoximate continuity
Arderone
auxiliary firing
body search
bonibells
bubble dancer
bus duct work
bustiers
cancelled ballot ticket
chip shell
coalign
cotton gatherer
crest angle
cronje
cubango
cut-off interval
cycloses
depilators
dip coating process
distance correcting mechanism of range-finder
DMZ hosts
dryhanded
dryness-moistening and phlegm-resolving prescription
Fergusonite-trihydrate
filament emission
fine and microstructure of ocean
galactaric acid
good-times
granados
half-duplex
hyaline cell
hydroxyphenylarsonic acid
inferior carotid ganglia
integrated sounding system (iss)
interface description language
invisible runners
kakortokite
keep your eye on the ball
Koch's node
larch bark extract
line-sequential color-television
liquid breakdown
liquidation statement
long summer
machine-readable texts
maintenance team
matako
mazurek
mesoporous molecular sieve catalyst
monascus
multirelation
Nea Dimmata
night-creams
Nocardiophage
nomo-
nonerupted deciduous teeth
nonreconstructive inversion
nuplex
Ojo de Laguna
Ollantaitambo
operating losses
palilalias
parturiates
party-man
pashminas
payment of royalty
pendulous axis
phylosopher
pickled
population distribution
position modulation
prediction accuracy
purified helium product cooler
repaneled
ruddys
Runamycin
serve the turn
shatterindex
side draw tray
skew pupils
sputtering deposition
stereoscopic rangefinder
sulfatidate
Szabo
tampulbolon
tautomerizm
telc
tilting prevention device
Timpas
to keep your eyes peeled
unchampioned
Uniloy
universal-joint journal
vaccary
Vsign
water-sop
Whitworth standard screw thread
young Turks