Have you ever thought about what our food will be in the future?
More land will be used for building new towns and houses for all the people. Then there will be less room for cows and sheep, so meat will be more expensive. Instead, people will eat more fruit and vegetables. In this way, people may be healthier.
Only about 29%of the Earth's area is land and the rest is sea, so some think maybe we can get more food from the sea.
Besides, though rice supports more than half the world's population, it needs a lot of water to grow. Therefore, it might be impossible to grow rice in the future. Some farmers are experimenting with new crops. The soybean (黄豆) makes a good substitute (替代品) for rice and meat.
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A. Maybe no one will eat it every day. B. Scientists predict (预测) the climate will get drier during the next century. C. Scientists are always trying out new ways of growing food. D. Farmers like to grow beans because they don't need much water, and beans also improve the quality of the soil. E. As the population is growing fast, there must be changes in our food. |
