VOA慢速英语:Another Look at Massive Online Open Courses

2. lecture n. （通常指大学里的）讲座，讲课，演讲
例句：I take it as a pleasure to attend your lecture.
我很愿意听你讲课。

3. present adj. 出席的, 到场的
例句：How many of the group are present today?
今天该组有多少人出席?

4. discipline n. 学科
例句：Mathematics and physics are related disciplines.
数学和物理是相关学科。

5. approach n. 方法，方式；手段；步骤；态度
例句：His approaches to the problem are wrong.
他处理这个问题的方法是错误的。

6. instruction n. 讲授, 指导, 教学
例句：I anticipate deriving much instruction from the lecture.
我期望从这演讲中获得很多教益。

7. assignment n. (课外)作业,功课
例句：The English assignment is a book report.
英语课外作业是写一份读书报告。

8. attempt vt. 试图; 尝试
例句：He attempted to get in touch with them but without success.
他试图和他们联系, 但未成功。

9. note vt. 提到,指明
例句：He noted the importance of the problem in his lecture.
他在讲座中着重提到这一问题的重要性。

10. replicate vt.复制;重复
例句：The chameleon's skin replicates the pattern of its surroundings.
变色龙的皮肤可随环境的模式而改变颜色。