One possible version：

　　These_days_wasting_things_has_become_a_common_phenomenon_around_us. As high school students, we can do our part to save energy.

　　First of all, we should form the habit of saving water, especially when we brush our teeth and wash hands, and never leave water running unnecessarily. Meanwhile, we ought to save electricity. When we leave classrooms or our homes, we should make sure that the lights and other electrical appliances have been turned off. And to launch “Clear Your Plate” campaign is a good measure to avoid the waste of food. We can also recycle plastic, paper and drink cans. Use recyclable products instead of disposal ones. What's more, we should recommend our relatives and friends as well as our parents to raise the awareness of saving energy.

　　Let's start right now and spare no effort to do a little bit every day! A small effort will make a big difference.

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