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来源：百度知道 编辑：UC知道 时间：2024/06/04 05:04:46
Two American scientists told the people in industrial nations that they would be much healthier if they ate more of the same kinds of foods eaten by humans living more than 10,000 years ago.
The scientists say that the human body has changed very little since human first appeared on the earth, but the way we live has changed greatly. Our body has not been able to deal with these changes in life style and this has led to new kinds of sicknesses. These new sicknesses were not known in ancient times. So they are called “diseases of civilization”. Many cancers and diseases of the blood system, including heart attacks and strokes are examples of such diseases.
Scientists noted that early stone-age people used very little alcohol or tobacco, probably none. Ancient people also got a great deal of physical exercise, but a change in food is one of the main differences between life in ancient times and life today.
Stone-age people hunted wild animals for their meat, which had much

Our body has not been able to deal with these changes in life style and this has led to new kinds of sicknesses. These new sicknesses were not known in ancient times. So they are called “diseases of civilization”. 所以60选C early stone-age people used very little alcohol or tobacco, probably none. Ancient people also got a great deal of physical exercise, but a change in food is one of the main differences between life in ancient times and life today.综合全文 61选D
Stone-age people hunted wild animals for their meat, which had much less fat than farm animals. They also ate a lot of fresh wild vegetables and fruits. They did not use milk or other dairy products, and they made very little use of grains. But today, we eat a large amount of dairy products and grain foods62选D

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