介绍： 版权归原作所有，仅供此学习，若有侵权请告知删除。
[11:53.01]The last reading.
[11:55.18]New Renewable Energy Sources
[11:58.29]Scientists and engineers are constantly working
[12:02.23]to make new renewable energy sources.
[12:05.75]Three of the most promising are as follows.
[12:09.45]The first one is tidal e...

介绍： 版权归原作所有，仅供此学习，若有侵权请告知删除。
[11:53.01]The last reading.
[11:55.18]New Renewable Energy Sources
[11:58.29]Scientists and engineers are constantly working
[12:02.23]to make new renewable energy sources.
[12:05.75]Three of the most promising are as follows.
[12:09.45]The first one is tidal energy,
[12:12.14]which exploits the power of tides to produce electricity.
[12:16.76]Some tidal energy projects use the moving tides
[12:20.39]to turn the blades of an engine.
[12:22.87]Other projects use small dams to control the flow of water.
[12:27.86]The next is wave energy, which uses waves from the ocean, lakes, or rivers.
[12:34.50]Some wave energy projects use the same equipment that tidal energy projects do.
[12:41.15]Other wave energy projects float directly on waves.
[12:45.33]The water's constant movement over and through
[12:48.08]the floating pieces of equipment can create electricity.
[12:53.03]The last one is algae fuel, a type of energy
[12:56.94]that uses the unique chemicals in seaweed to create a clean and renewable fuel.
[13:03.44]And it does not require acres of crop land to get this kind of fuel.