苍蝇
Flies Flies usually live in the rubbish. Let's see where a fly flies. First it flies out of a window. Then it stands on some dirty things in the street and germs stick to its feet. Finally, it flies back to the house and walks over food. It leaves behind the germs! What can you learn from this? First, we mustn’t leave dirty things in the street or on the ground near our house. Second, all food must be covered so that flies cannot get to it. Third, flies carry germs and we must kill them as soon as we see them.
苍蝇 苍蝇经常生活在垃圾里。让我们看看苍蝇通常飞去哪儿。首先，它飞出窗户。然后停在街道的脏东西上，腿上粘了细菌。最后，它又飞回房屋里，在食物上行走。它把细菌留在食物里！ 你从这学到了什么？ 第一，千万不能将脏东西留在街道上或住宅附近的地上。第二，食物要盖好，这样苍蝇就碰不到了。第三，苍蝇身上有细菌，因此，一看见苍蝇，我们就应该尽快将其灭掉。