Ⅱ. 1. at the expense of

　　2. Does it make sense

　　3. puttinginto practice

　　4. catch up on

　　5. why people love Mickey Mouse

　　Ⅲ. 【参考范文】

　　With the world’s population rapidly increasing, it is beyond doubt that sustainable development is becoming more and more necessary. It is simple but difficult to put into practice.

　　In our modern life, we need to use Earth’s natural resources to provide energy for us. However, coal and oil are non-renewable sources of energy. Therefore, many people are pushing for the use of alternative energy sources. On top of this, global warming, together with more and more natural disasters, puts humans and other species at risk. All these problems put pressure on the government to take effective measures such as advocating taking advantage of renewable resources and protecting the environment.

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