安徽省六安市20xx年高一英语暑假作业第十七天word版含答案内容摘要：
e a deep__10__． Recently some American scientists have given a useful piece of advice to people in industrialized nations． They say people should eat more of the same kind of food eaten by humans living more than 10,000 years ago． ___11___ The scientists say that the human life has changed greatly． Our bodies have not been able to deal with these changes in lifestyle and this had led to new kinds of sicknesses． ___12___ So they are called diseases of civilization． Many cancers and diseases of the blood system are examples of such diseases. Scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol or tobacco, probably none． ___13___ However, a change in food is one of the main differences between life in ancient times and that of today. Stone Age people hunted wild animals for their meat, which had much less fat than domestic ones． They。阅读剩余 0%
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