雅思TASK2大作文模拟题:食物 food

One way to increase food production is for people to eat grain such as barley, oats or maize instead of feeding it to animals. More food is produced when farmers grow crops instead of animals on their land. While animals constantly need a lot of grass or grain, water, and space in which to move, crops need only water and fertilizer. Also, it costs money to turn the grain into meat, by feeding it to animals and then killing the animals. Therefore, the food yield per unit of land is far greater with crops than with animals. Another way to increase food production is by improving the technology that farmers use. Firstly, better methods for irrigating land need to be developed. In countries which have little or no rain, such as parts of Africa, improved irrigation could lead to a big increase in food production. Secondly, if better seeds are developed, this could lead to stronger and healthier plants, which would provide more food yield per unit of land.