大学 英语 作文 前人栽树后人乘凉

　The images above are both meaningful and instructive:this man's
hard work is not only for his own benefit,but also for the benefit of
future generations.The pictures serve to remind us that the existence
of our current happiness and valuable national heritage is due to the
struggles of our predecessors.
　　We,in turn,should also work hard in order to guarantee the
comfort and safety of generations to come.Sustainable development has
become a topic of heated debate in recent years.While it is justifiable
to satisfy current demands,we cannot neglect the needs of our
descendants in the process.Our children also depend on Earth's natural
resources and we should not deprive them of such necessities.
Unfortunately,many people only think of their short term,personal
interests.An entire forest might be clear cut,in the interest of
making a profit,without a single tree planted in its place.This
inconsiderate attitude towards the welfare of our descendants,as well
the indifference to the outcome of such reckless actions,can only turn
Earth into a cold and lifeless planet.
　　People must be taught to appreciate Earth as not only their home,
but also the home of our children and grandchildren,as well as all
other plants and animals.While making great efforts to increase our
current quality of life,we must simultaneously consider how our actions
will affect future lives.