Food is very important. Everyone needs to _（1）_ well if he or she wants to have a strong body. Our minds also need a kind of food. This kind of food is   (1)  _. We begin to get knowledge even   (2)   we are very young. Small children are   (3)  _ in everything around them. They learn _  (4)   while they are watching and listening. When they are getting older, they begin to  (5)  _ story books, science books…, anything they like. When they find something new, they love to ask questions and   (6)   to find out answers. What is the best   (7)   to get knowledge? If we learn by ourselves, we will get   (8)   knowledge. If we are   (9)   getting answers from others and do not ask why, we will never learn well. When we study in the right way, we will learn more and understand better.