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VOA标准英语2013--Online Universities Offer Free Classes to Millions

时间：2013-03-01 09:01:30

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Online Universities Offer Free Classes to Millions

An engineering class at Stanford University is being recorded as an online course. The university is offering 30 to 40 free courses online, and more than 1.5 million students have enrolled2. There are regular schedules, homework and tests but those enrolled do not earn credit toward a university degree. John Mitchell, the Vice3 Provost for Online Learning at Stanford, says the university offers these course as a public service.

“We’re teachers. This is what we love to do. If we can see people around the world learning from us, that’s rewarding. That’s what gets us up in the morning,” Mitchell said.

These free courses are also meant to entice4 students to apply to Stanford or enroll1 in other online classes that are not free. While online education is expanding the reach of major universities, Mitchell says they will not replace the on-campus experience.

But David Stavens, who taught at Stanford and recently co-founded a free online university called Udacity, says a quality education is becoming too expensive for most people.

“It’s a good system for a lot of people but there is another set of people who are equally smart, equally determined5, equally hard working but who don’t quite fit into the mold, and it’s an unfair system for them,” Stavens said.

While Udacity is a for-profit company, the vast majority of its courses are free and they are developed specifically for online students. They include short videos, followed by exercises designed to engage the student and reinforce the lesson.

Students can pay for video conference tutoring or use the free chat rooms to discuss problems with their peers.

While the number of universities offering online classes is growing, some classes are free and others are not. The Khan Academy is a non-profit free website that contains over 3,500 video classes in a variety of languages and is utilized6 by six million people each month.

Salman Khan founded the company. He says it wasn't difficult to recruit donors7 like the Bill and Melinda Gates Foundation by offering a quality education to everyone in the world. 

“Anytime, with so little incremental8 on your part, you can create essentially9 an unlimited10 potential on someone else’s part, I think it would be a shame not to do it,” Khan said.

Critics say there are flaws with online education, citing studies that show a higher drop out rate for online students. But proponents11 say the evolving technology is coming together to open up new educational opportunities as never before to millions around the world. 


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1 enroll Pogxx     
v.招收；登记；入学；参军；成为会员（英)enrol
参考例句：
  • I should like to enroll all my children in the swimming class.我愿意让我的孩子们都参加游泳班。
  • They enroll him as a member of the club.他们吸收他为俱乐部会员。
2 enrolled ff7af27948b380bff5d583359796d3c8     
adj.入学登记了的v.[亦作enrol]( enroll的过去式和过去分词 )；登记，招收，使入伍（或入会、入学等），参加，成为成员；记入名册；卷起，包起
参考例句：
  • They have been studying hard from the moment they enrolled. 从入学时起，他们就一直努力学习。 来自《简明英汉词典》
  • He enrolled with an employment agency for a teaching position. 他在职业介绍所登了记以谋求一个教师的职位。 来自《简明英汉词典》
3 vice NU0zQ     
n.坏事；恶习；[pl.]台钳，老虎钳；adj.副的
参考例句：
  • He guarded himself against vice.他避免染上坏习惯。
  • They are sunk in the depth of vice.他们堕入了罪恶的深渊。
4 entice FjazS     
v.诱骗，引诱，怂恿
参考例句：
  • Nothing will entice the children from television.没有任何东西能把孩子们从电视机前诱开。
  • I don't see why the English should want to entice us away from our native land.我不明白，为什英国人要引诱我们离开自己的国土。
5 determined duszmP     
adj.坚定的；有决心的
参考例句：
  • I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
  • He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。
6 utilized a24badb66c4d7870fd211f2511461fff     
v.利用，使用( utilize的过去式和过去分词 )
参考例句：
  • In the19th century waterpower was widely utilized to generate electricity. 在19世纪人们大规模使用水力来发电。 来自《简明英汉词典》
  • The empty building can be utilized for city storage. 可以利用那栋空建筑物作城市的仓库。 来自《简明英汉词典》
7 donors 89b49c2bd44d6d6906d17dca7315044b     
n.捐赠者( donor的名词复数 )；献血者；捐血者；器官捐献者
参考例句：
  • Please email us to be removed from our active list of blood donors. 假如你想把自己的名字从献血联系人名单中删去，请给我们发电子邮件。
  • About half this amount comes from individual donors and bequests. 这笔钱大约有一半来自个人捐赠及遗赠。 来自《简明英汉词典》
8 incremental 57e48ffcfe372672b239d90ecbe3919a     
adj.增加的
参考例句：
  • For logic devices, the incremental current gain is very important. 对于逻辑器件来说，提高电流增益是非常重要的。 来自辞典例句
  • By using an incremental approach, the problems involving material or geometric nonlinearity have been solved. 借应用一种增量方法，已经解决了包括材料的或几何的非线性问题。 来自辞典例句
9 essentially nntxw     
adv.本质上，实质上，基本上
参考例句：
  • Really great men are essentially modest.真正的伟人大都很谦虚。
  • She is an essentially selfish person.她本质上是个自私自利的人。
10 unlimited MKbzB     
adj.无限的，不受控制的，无条件的
参考例句：
  • They flew over the unlimited reaches of the Arctic.他们飞过了茫茫无边的北极上空。
  • There is no safety in unlimited technological hubris.在技术方面自以为是会很危险。
11 proponents 984ded1baa85fedd6467626f41d14aff     
n.（某事业、理论等的）支持者，拥护者( proponent的名词复数 )
参考例句：
  • Reviewing courts were among the most active proponents of hybrid rulemaking procedures. 复审法院是最积极的混合型规则制定程序的建议者。 来自英汉非文学 - 行政法
  • Proponents of such opinions were arrested as 'traitors. ' 提倡这种主张的人马上作为“卖国贼”逮捕起来。 来自辞典例句

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