蒼蠅
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.
蒼蠅 蒼蠅經(jīng)常生活在垃圾里。讓我們看看蒼蠅通常飛去哪兒。首先，它飛出窗戶。然后停在街道的臟東西上，腿上粘了細(xì)菌。最后，它又飛回房屋里，在食物上行走。它把細(xì)菌留在食物里！ 你從這學(xué)到了什么？ 第一，千萬不能將臟東西留在街道上或住宅附近的地上。第二，食物要蓋好，這樣蒼蠅就碰不到了。第三，蒼蠅身上有細(xì)菌，因此，一看見蒼蠅，我們就應(yīng)該盡快將其滅掉。