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
Adelphan-Esidrex
anesthesiologies
anterior superior iliac spine
Antitaurus
BDV (breakdown voltage)
beading line
Bhesa
bias cutter
broken flange detector finger
browster
c-number
calixes
charge-stroage varactor
co-ordinate formula
colonialize
colour discrimination lamp
contingency perspective
conventional ignition system
copper oxide meter
cross-over track
curling dies
cut down expenses
Cynanchum gracilipes
daishowas
darkie
deepa
ever created
facients
Fargesia qinlingensis
feu-farmer
fixed end wall
fluence
fluxing medium
fosen
full address jump
gaudet
give a good example
graphic output unit
Guir, C.
gun-emplacements
hagseed
Hathor capital
helium absorption chamber
high-bay
histologic lesion
Holland cigar
ice cream cake
inferior wings
interim interdict
IP fax
jammed out
JIRA,J.I.R.A.
Judayyidah
kyoga
laraine
laser video
low-frequency region
mallet finger
marriage brokerage
matsen
microvitrain
misquoter
Muscoidea
Naejangdo
Namsan Park
neoprene rubber
newpoints
no-load lose
objective of water conservancy planning
oleate
oriental and ethiopian realm
Pabetangan
phonetic transcriptions
pier mirrors
plant waste
plastic substances
points of inflection
prior to the expiration of the term
proveditor
repaire
rough and tumble
rule with a heavy hand
S.&S.R.
sceats
science fiction
screwing tap
secretarial education
sparks up
spreading rate
squadronist
strain crystallization
superexchange interaction
sus out
suturae occipitomastoidea
symbiogenetic
tattletale gray
the-naze
tranquillisings
United Ireland
wheat-germ oil
winemerchant
wire communication line