参考答案：One possible version

Most of middle school students agree that school life is rich and colorful and learning is very interesting and enjoyable .However, some of the students,either in cities or in the countryside feel tired of their study at school. Itis a very serious problem in our society, but why?

Some of them think that education at school is useless, the subjects they learn have nothing to do with their interest or even their future .Little by little, theylose their interest in study or even get tired if it .In the end they find ittoo hard to go on with their study and finally lose confidence in their studyand give it up.

In my opinion, learning is very important on the life road to success for ourfuture .Marx told us that books are the ladders to progress for mankind, so Ithink we should stick to our learning, however hard it is or whatever difficulty we meet in our life.