The problem may be due to a break in the network connection or other network faults. You can try to solve the problem by the following methods:
1) Press the pause button and wait for some time in order to ensure the download is complete. Then click the 'Play' button to try again.
2) Refesh the current web page after the clearing cathe by clicking the Toolkit on the top of Internet Browser -> Internet Option -> Delete File -> Delete All Off-line Contents -> OK.
The Three Gorges Dam located in Sandouping, Yichang City is the largest water control project in the world. Completion of the project will bring effective flood control and increased power generation. It will also facilitate river navigation and promote tourism.