Question

综合填空．

　　Flies（苍蝇）usually live in rubbish（垃圾）. Let's look at a fly, and see w__1__ it flies. First it flies out of the window; second, it s___2___ on some dirty things in the street; and third, it flies back to the house and w___3__ over your food.

　　When a fly walks on the dirty things in the street, its f___4__ have got some germs（细菌）from them. When the fly walks on your f____5___ with its dirty feet, it leaves the germs on your food. What can you learn from this?

　　First, we learn that we m___6___ leave dirty things in the street or on the g___7___ near our house.

　　Second, we learn that all food must be c___8___ so that flies may not get to it.

　　Third, we learn that flies often c____9___ germs and we must kill them a___10___ soon as we see them.

Answer 1

答案：where;stands;walks;feet;food;mustn't;ground;covered;carry;as