now more and more people get the bad illness called swine h1n1 all over the world.swine h1n1 has become the center of attention.speak of it,many people are terrified.in fact,if we face the illness in a right way ,it won't terrify us.and we can do some things to keep healthy.we should wash hands more and we should open the window to enjoy the fresh air.we should also do more exercise.we can also eat more vegetables and fruits.  we should be active to treat the illness.we must be able to get over the difficulty.