书面表达：目前甲流感正在全世界流行，很多人都可能感染。请你结合你校的预防经验，以“如何预防它”为题，提出至少三个方面的应对措施。
要求：语句连贯，逻辑合理。字数：120词左右
提示词：甲流感A（H1N1) flu；感染: infectors; 口罩：mouth-cover;流鼻涕：sneeze
参考范文：
How to prevent the A(H1N1) Flu?
As is well known,the A flu is spreading throught the world. However,if we negnect it, the deadly A flu may cause more infectors ,or even more deaths. So what is the most important is that we should take some effective measures to prevent it.They can be listed as follows.
Firstly,it is necessary for you to realize the A flu can be prevented if you develop good living habits. For example,you shouldn’t forget to wash your hands before meals.Besides,don’t spit everywhere and try to cover your mouth or nose with paper or hankerchiefs when you have to cough or sneeze.What’s more,remember to wear the mouth-cover if you have to go to the public places,such as the crowded cinemas,supermarkets, buses,where the A flu may spread easily.
Secondly,of course, taking exercise more often and taking good sleep to build your body are wise choices for you to reduce the risk of being infected.
Last but not the least, if you are unlucky to be infected with the slight flu cold, try to stay at home,and take some medicine. Do pay attention to your daily body temperature. If you have a high fever, go to the hospital without delay for further treatment. Make sure you are not expected to come back to school before the cold or flu is cured.
Only by doing like this can you prevent or defeat the A flu in the end.