阅读理解。 Do you know about the flu? The flu usually spreads quickly. In winter, lots of people may get the flu. If you get sick, do you know what to do? Here are some tips . Drink lots of water. Water is good for your body when you get the flu. Get plenty of sleep. If you can't sleep, you can listen to music, watch a movie or read a book to relax yourself. If you feel serious, ask your parents to take you to see a doctor. But don't take medicine until you see a doctor. Wash your hands often! You certainly don't want to spread the flu to anyone else . Also, don't share cups and eating utensils (用具), like forks, with other people. Most people will get better without seeing a doctor, but it will take them about a week to get well. If you have a high temperature for more than a few days, call your doctor at once. 1. The underlined word 'tips' means ______ in Chinese. A. 末端 B. 建议 C. 小费 D. 垃圾 2. What should you drink to keep healthy? _____________________________________________________ 3. How can you relax yourself if you can't sleep? ______________________________________________________ 4. Must you see the doctor if you don't get the serious flu? ______________________________________________________ 5. :将文中画线的句子译成汉语。 ______________________________________________________