Many people like eating junk food. French fries, icecream and hamburgers are all (垃圾) food, (但是) they are delicious! So people, especially(尤其) children, like (吃) them very much. (为什么) do people call them junk food? Because there is (几乎没有) any nutrition(营养) in them. The food with little nutrition, of course, is bad for your (健康) if you eat too much.
The (名字) of "junk food" comes from Portuguese(葡萄牙语). The word "junk" means "(一个) old rope(绳索)". Just think of this: If someone buys an old rope, will it be very expensive? Your answer must be "No".
After knowing what junk food is, what (应该) you do? Oh, yes! (不) eat too much of it!