精选优质文档-倾情为你奉上七年级英语第二学期阅读理解专项练习AHave you ever been ill? When you are ill, you must be unhappy because your body becomes hot, and there are pains all over your body. You dont want to work, you stay in bed, feeling very sad.What makes us ill? It is germs (细菌).Germs are everywhere. They are very small and you cant find them with your eyes, but you can see them with a microscope(显微镜). They are very very small and there could be hundreds of them on a very small thing.Germs are always