假设你是B哦，你的同桌感冒了，请你阅读下面这段短文，然后给他写一封关于怎样预防感冒的信，现在已经基本为你写好了。

请仔细阅读短文，然后根据短文内容在横线上填上恰当的单词，每条横线不准超过4个单词。

It’s easy for us teenagers to catch cold in winter and spring. But we can do a lot to stay healthy. Here is some advice. \Wash your hands often, which will stop germs (细菌) passing from one person to another. Don’t use your hands when coughing. Use a tissue (纸巾), and then throw it away at once.Turn your head away from people near you when you are coughing.Get some fresh air. Germs like staying in dry and warm rooms. So you’d better keep your windows open at night when you are sleeping, or you won’t have enough fresh air.If flu (流感) is going round your house or school, you should try to stay away from those who are ill. Boil (煮) your toothbrush for about a minute, which kills germs.Dear Mark,I’m sorry hear that you’ve got a cold. Have you seen the doctor yet? Well, just do as the doctor tells you. It is easy for us to catch cold in such weather. I’ve just read a passage about how to keep away form cold. Now, let me tell you about you about it. First, you should often wash your hands because that can (86) __________________from one to another. Second, when you are coughing, you’d better (87)__________________ and them throw it into a dustbin. Also if you are coughing,near somebody, you should (98) ___________________.Third, when you sleep at night, your windows (99) ___________________so that you can get enough fresh air. And fourth, wherever you are, you should try to stay away from those who got flu. Boil your toothbrush for a while now and then, so that germ (100) _____________________Hope you will get better soon.YoursBobTokyo, London, and New York are among the largest cities in the world. Do you know how big and how old they are? How many famous places are there in these three cities? Well, Tokyo has the biggest number of people. It has 9,000,000 people. London, however, is the largest of the three. It covers 600 square miles. New York is almost as large. London is also much older than either Tokyo or New York. It is over 1,600 years old. Tokyo is the second oldest; it really began in 1457. New York is the youngest. Today there are many famous places in these three cities. The TV tower in Tokyo is over 1,000feet high. The two most important theatre districts in the world are in London and New York. Hundreds and thousands of visitors from foreign countries are visiting each of the three cities every day. All the three cities are playing an important role in the word affairs56.Maybe there are_______ people in the city of London.A.9,000,000B.8,000,000C.9,300,000D.10,000,00057. New York is almost as large as________.A. LondonB. TokyoC. BeijingD. Paris58. ________ is the oldest cities of the three cities?A. TokyoB.LondonC. BeijingD. New York59. Which of the following is NOT TRUE?A. New York is the youngest city of the three.B. Tokyo has more famous placess than New York.C. London has one most important theatre district in the world.D. There are many foreign visitors every day coming to London.60. What is the best title of the passage/A. London and New YorkB. Three CitiesC. The new citiesD. Tokyo, London and New YorkSwimming is an exciting 41 that can be learned at a very young age. I believe that five is the best age to learn. By five or six, a child may be 42 of water, which is a very important thing to know. It’s wise to be afraid, to know true danger. Children understand that water can sometimes be very 43 .Swimming does __ 44 to our health. Every swimmer should learn, the earlier, the 45 , these four kinds of swimming: butterfly (蝶泳),backstroke(仰泳),breaststroke(蛙泳),and crawl(自由泳). One of these---breaststroke---is different from 46 , since some young swimmers can use it naturally, without any training.In swimming, every swimmer should 47 the following rules:First, never swim 48 ! No matter how good a swimmer you are, don’t swim alone. You 49 get drowned(溺死)! If you swim by yourself, with no watchmen or friends with you, you may get into 50 .Second,don’t 51 dangerous swimming. For example, to swim 52 than you are able to is dangerous. Most swimmers know enough not to swim too far from the bank or the beach. It is no good showing off(炫耀)by doing dangerous things. Swim 53 and you will continue to swim, and stay alive.Third,don’t 54 . Swimming needs a healthy body, and good lungs(肺) are part of it.Finally, do as much exercise as possible to 55 your body41. A. place B. location C. activity42. A. sick B. afraid C.full43. A. safe B. dangerous C. heavy44. A. good B. things C.goods45. A.better B. worse C.best46. A. other B. others C.the others47. A.break B.follow C.see48. A.alone B. lonely C.own49. A. should B. may C. must50. A. matter B.question C.trouble51. A. make B. try C. tell52. A.farther B. further C. quicker53. A.quickly B. safely C. casually54. A.smoke B. park C.talk55. A.build B. check C.hurt。