One day，you open the fridge（冰箱） and find some moldy （发霉的） food.But before you can throw it away，your mother stops you.She doesn't want to waste food.She cuts off the moldy part and eats the rest.Is it safe to do this？
    Mold can grow on almost all kinds of food.Mold is usually green，white，black or grey.Mold makes food soft and changes its color.Moldy food tastes quite bad - and it's not safe to eat.
    If you find mold in soft food，just throw it away.There is some water in soft food，such as bread，tomatoes or hot dogs.This allows mold to easily grow.Bacteria （细菌） can also grow along with it But it's easy to remove（去除）mold from hard food.The mold can't grow very deeply inside this kind of food.It's OK to cut the moldy parts out of hard food and eat the rest.But if the food is completely covered with mold，you should still throw it away.
    Most kinds of mold is bad for us.But some kinds of mold can be used to make food.For example，penicillium （青雷菌） can be used to make many kinds of cheese.The cheese is safe to eat - and it's quite delicious as well.

（1）Why does the mother refuse to throw the moldy food away？

Because she doesn't want to waste food.

Because she doesn't want to waste food.

（2）What color is mold？

Green，white，black or grey.

Green，white，black or grey.

（3）What should you do if you find mold in bread？

We should throw it away.

We should throw it away.

（4）Can the mold grow deeply inside hard food？

No，it can't.

No，it can't.

（5）What can penicillium （青霉菌） be used to make？

It can be used to make many kinds of cheese.

It can be used to make many kinds of cheese.