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reading4
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reading4

Scientist have learned a lot about the kinds of people’s needs . They say that there are several kinds of food that people should eat every day ; they are : green and yellow vegetables of all kinds ; citrus ['sitrəs]柑橘 , fruits and tomatoes ; potatoes and other fruits and vegetables ; meat of all kinds , fish and eggs ; milk and foods made from milk ; bread or cereal ['siəriəl]谷物 , rice is also in this kind of food ; butter , or something like butter .
People in different countries and different places of the world eat different kinds of things . Food is cooked and eaten in many different kinds of ways . People in different countries eat at different times of the day . In some places people eat once or twice a day ; in other countries people eat three or four times a day . Scientists say that none of the differences is really important . It doesn’t matter whether food is eaten raw or cooked , canned ( 罐装 ). Or frozen ( 冷冻的 ). It doesn’t matter if a person eats dinner at 4 o’clock in the afternoon or at eleven o’clock at night . The important thing is what you eat every day .
There are two problems ,then , in feeding the large number of people on earth . The first is to find some way to feed the world’s population so that no one is hungry . The second is to make sure that people everywhere have the right kinds of food to make them grow to be strong and healthy .
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