请帮忙写篇英语作文：the one thing I cannot live without is knowledge.

It is said that knowledge is power.Indeed,as the development of the society,a good grasp of a knowledge is a key to success.
I ,as well need knowledge badly so that i can't live without it.In the daily life,I need knowledge to solve problems such as how to communicate with foreigners or how to make a supper.Let alone in the filed of acdemic.
so,knowledge is very important in my life.

I want to be a volunteer for Shanghai 2010 Expo.This is because being a volunteer is such a happy thing.Giving is more important than receiving.I can show my own value to others by doing this.So I nee...

1.What thing do you want to do for the Shanghai Expo? 2.Why do I want to be a volunteer for Shanghai 2010 Expo.This is because being