阅读理解。 Basketball stars are usually tall. The stars of other sports are sometimes short. Some of the best football players are not very tall. Short people often have better balance than tall people, so they do not fall over (摔倒) very often . In some sports the players must have good balance, for example, table tennis and running. You do not need long legs to run fast! Some of the fastest runners in the world are not very tall. Some are tall and some are short. There is no medicine to make people grow taller or to make people shorter. The tallest woman in the world is Sandy Allen. She is 2.317 meters tall and lives in the United States. The shortest person in the world is Gul Mohammed from India. He is only 57 centimeters (厘米) tall. Today young people in many countries grow taller than their parents. This is because they eat better food today. Good food can help children grow. 1. How many different sports do we talk about in this passage (段落)? What are they? ____________________________________________________________. 2. Is there any medicine to make people grow taller or to make people shorter? ____________________________________________________________. 3. The tallest person in the world is ________ meters taller than the shortest one. 4. _______ _______ helps young people today grow taller than their parents. 5. 将短文中画线的句子译成汉语： ___________________________________________________________.