本人急需一篇英文演讲稿The greatest invention in my eyes请好心人帮忙

Good afternoon, ladies and gentleman. As a freshman, I am honored to be here, but I hope that my performance today will not be so “ fresh”!

What is the greatest invention in my eyes? First of all, would you please watch your wrist? (pause),,,,,,, Did you see anything around your wrist? Yes, maybe someone of you have got my answer. It is the watch, or clock.

Why clock is so important?
Just imagine, if all the clocks (including the things which have a “clock” function such as mobile phones) in your life are taken away completely, what will happen?
At first, you might feel fine and live your life comfortably and normally without any disorder. But I can assure you, several days later; you will be in a panic and feel lost. The reason is that Clock, the essential reminder of our life, tells us when to arise and sleep, when to play and when to work. With clock, man is able to arrange everything in an apple-pie order. He even knows how long to keep that pie