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四、阅读关于人类饮食演变的材料，补全表格信息。(每空一词)
Long ago, early humans ate only raw food like uncooked meat and drank water from rivers or lakes. This diet often made them sick.
Everything changed when humans discovered(发现) fire! This was very important. They could cook their meat and other foods. They also began eating grains like corn and wheat, turning them into rice, noodles and steamed buns. They learned to boil, steam and fry. Cooking made food safer to eat and much tastier.
Today, people have many food choices. For many people, staying healthy is important. They try to eat less sugar and fat. Instead, they pick foods rich in protein (like chicken, beans or fish) and low - fat foods. Eating plenty of fruit and vegetables every day is also a key part of staying fit. Besides, people now use a variety of cooking ways to make food healthier.
Long ago, early humans ate only raw food like uncooked meat and drank water from rivers or lakes. This diet often made them sick.
Everything changed when humans discovered(发现) fire! This was very important. They could cook their meat and other foods. They also began eating grains like corn and wheat, turning them into rice, noodles and steamed buns. They learned to boil, steam and fry. Cooking made food safer to eat and much tastier.
Today, people have many food choices. For many people, staying healthy is important. They try to eat less sugar and fat. Instead, they pick foods rich in protein (like chicken, beans or fish) and low - fat foods. Eating plenty of fruit and vegetables every day is also a key part of staying fit. Besides, people now use a variety of cooking ways to make food healthier.
答案
1. Raw/Uncooked 2. cooking 3. sick
4. fire 5. grains 6. safer 7. less
8. ways 9. healthier
4. fire 5. grains 6. safer 7. less
8. ways 9. healthier
