求详细解答：书面表达. 环境 书面表达. 环境污染越发严重,请以“How to Protect the Environm

How to Protect the Environment
Our environment is very important for our lives.We need the fresh air,the clean water and so on.In
the past,there were many trees around us,the air was fresh and the river was clean.But now,people cut
down many trees.Air pollution and water polloution are very serious.The environment around us becomes
very terrible.We should protect our environment.First,we should plant many trees to keep water.Second,
we can ride a bike or walk to the school and work.Third,we shouldn't throw the dirty water into the river.
Fourth,we shouldn't use the plastic bags.Finally,we can ask more people to join us.
(答案不唯一)