Most American children eat potatoes every day, but they don't know which part of potato is most nourishing(有营养的).Take a sharp knife and cut a very thin slice(薄片) from it and hold it to the light, and you will see that the potato has skin, an outside rim(边缘) and the inner part. The outside rim which is right under the skin is most nutritious.But this part is often thrown away with the skin. Even the skin itself is better for food than the inside. When eating a cooked potato, if you choose the inside and leave the outside, you are wasting the best part of it. If you can’t eat the whole potato, it is better to eat the outside rim and leave the inner part.

小题1:A potato has _________.

A．one part only

B．two parts

C．three parts

D．four parts小题2:The best part of the potato is the _________.

A．middle

B．skin

C．outside rim

D．inside小题3:What does this reading tell about potatoes? It tells us _________.

A．how to cook them

B．how to cut potatoes

C．what is a potato made up of

D．how to eat them

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