[多项选择]Energy crisis is one of the main problems facing the world today.
2. Importance of energy
3. Conserving energy
Energy Crisis

参考答案:
[参考答案]
Energy Crisis
One of the main problems facing the world today is the energy crisis. With the development of industry and agriculture, the world has consumed a great amount of energy. But all this energy has gone forever. Therefore, energy supplies are becoming fewer and fewer. This makes it possible that all forms of energy will be, exhausted in the future.
However, energy is of great importance to man. We can hardly imagine how man could live in a world without energy. We wouldn’t be able to drive our cars and listen to our favorite songs. Moreover, the night would be become dark all the time. In short, once man loses all the energy resources, he will not be able to exist in the world.
Therefore, conserving our energy is an important task. We must take active measures to protect our energy resources. On the one hand, we should use our energy reasonably; on the other hand, we should educate our young people not to waste energy. Then we will be able to send a good gift—energy to our next generation.