阅读理解。 Basketball players are usually very tall.  Because they need to put the ball into the basket. Other sports players may be shorter than them. Short people often have better balance than tall people, so they don't fall over very often. In some sports the players must have good balance, for example, table tennis,they don't need to have long legs to run fast! Some of the fast runners in the world are not very tall.  Some people are tall and some are short.  The tallest man in the world is 2. 41 meters tall.  Today young people in many countries grow taller than their parents. This is because they eat better than their parents.  Good food can help children grow. 根据短文内容，回答下列问题。 1. Who has better balance? ______________________________________________________________________ 2. Must table tennis players have good balance? ______________________________________________________________________ 3. Are fast runners all tall? ______________________________________________________________________ 4. How tall is the tallest man in the world? ______________________________________________________________________ 5. Why do young people grow taller than their parents? ______________________________________________________________________