Treesare very important.
First,they are good for people's health because they take in harmful gases from theair and produce oxygen for people to breathe. Second, they can protect theenvironment by stopping the soil from being washed away and by stoppingsandstorms. Third, trees also provide people with a lot of things. We use woodto make furniture. We can also get fruit, oil and tea from trees. Without trees，ourenvironment will become worse and worse. There will be more disasters,such assand storms,droughts and floods. Without trees, people may get diseases andanimals will lose their homes.
Sowe must protect trees.
Teacher's comments:After learning the unit about protecting the environment, you have realized theimportance of trees in our lives. Without doubt, it is everyone's duty toprotect trees.