It’s very important that we all recycle (再利用). In nature, everything 36 again. For example, when an animal dies, it becomes ___37____ animal’s food. Nothing is wasted. But humans have created things like plastic bags ___38___ can’t be broken down by nature. Our rubbish kills animals and __39___ water and soil. ___40___ we continue making too much rubbish, the problem will only get worse. If nature can’t reuse the rubbish, we must recycle __41__. We should clean up the rubbish we’ve made because nature can’t.
Recycling is also the right thing to do for another reason. The earth is rich in natural materials like water and trees, __42 __ these materials are not endless. We use up our natural materials much _ _43 __ than the earth is able to reproduce them. For example, each year we cut __44 __ more than 6,000 square miles of forest. But it takes an average of 25 years for a new tree __45__.
Recycling can help us save the earth, so let’s take action right now.