It is well known that everyone has his own dream as well as his own future. But do you know what future really is? I have to say that future is now. That is to say we must treasure every minute now. If we want to have a bright future, we should know how important time is and use it well.
There is an old English saying: "Gain time, gain life." Then what's time? Time is something that we  can't see or touch, but we can feel it passing by. Time is always with us. When we are at table, timepasses; when we play, time goes by unnoticeable. We always say "Time is money", but time is even more precious(珍贵的) than money, because when money is spent, we can earn it back. But if time is gone away, it will never return. So, some of us even say time is priceless
We should always remember: future is now. For us students, we should try our best to work hard in order to create(创造) a great future of our own. We should make the best use of every hour and be the master of today.We should do everything before us as well as possible. And never put off what can be done today till tomorrow.
As we all know, "Time and tide wait for no man." If you waste today, you will regret(后悔) tomorrow. So from now on, work hard. Tomorrow will be better, and your future will be brighter. Remember: "No pains, no gains." Today's hard work is the cause of tomorrow's harvest.

Opinions	Supporting details
Future is now.	Everyone has his own dream as well as his own future. If we want to have a bright future, we should know the        of time and make every minute useful.
is priceless.	Time is money, but time is even more valuable than money, because when money is spent, we can earn it back. But missing time will never    back.
Be masters of today.	Today's hard work        to tomorrow's harvest. As students, we should never put off what can be done today till tomorrow and we should try our        to do everything well.