3. 3. Listening: How Hydroelectric Power Plants Work

Unit 11a deals with the incident at the Sayano–Shushenskaya power station, which is a hydroelectric power plant located on the Yenisei River in Russia. In order to fully understand what happened, you first need to know the principle of a hydroelectric power plant. Watch the video to see how a hydroelectric power station works. As you watch the animation, complete this listening comprehension task.